Merge change I9c6e1f90 into eclair-mr2

* changes:
  Initial check in of stagefright software AAC decoder based on PV source code.

media/libstagefright/Android.mk

@@ -50,6 +50,13 @@ LOCAL_SHARED_LIBRARIES := \
         libcutils         \
         libui
 
+ifeq ($(BUILD_WITH_FULL_STAGEFRIGHT),true)
+
+LOCAL_STATIC_LIBRARIES := \
+        libstagefright_aacdec
+
+endif
+
 ifeq ($(TARGET_OS)-$(TARGET_SIMULATOR),linux-true)
         LOCAL_LDLIBS += -lpthread
 endif

media/libstagefright/OMXCodec.cpp

@@ -18,6 +18,7 @@
 #define LOG_TAG "OMXCodec"
 #include <utils/Log.h>
 
+#include "include/AACDecoder.h"
 #include "include/ESDS.h"
 
 #include <binder/IServiceManager.h>
@@ -284,6 +285,10 @@ sp<MediaSource> OMXCodec::Create(
     bool success = meta->findCString(kKeyMIMEType, &mime);
     CHECK(success);
 
+    if (!strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) {
+        return new AACDecoder(source);
+    }
+
     Vector<String8> matchingCodecs;
     findMatchingCodecs(
             mime, createEncoder, matchComponentName, flags, &matchingCodecs);

media/libstagefright/codecs/Android.mk

@@ -0,0 +1,8 @@
+ifeq ($(BUILD_WITH_FULL_STAGEFRIGHT),true)
+
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+include $(call all-makefiles-under,$(LOCAL_PATH))
+
+endif

media/libstagefright/codecs/aacdec/AACDecoder.cpp

@@ -0,0 +1,202 @@
+#include "AACDecoder.h"
+
+#include "../../include/ESDS.h"
+
+#include "pvmp4audiodecoder_api.h"
+
+#include <media/stagefright/MediaBufferGroup.h>
+#include <media/stagefright/MediaDebug.h>
+#include <media/stagefright/MediaDefs.h>
+#include <media/stagefright/MetaData.h>
+
+namespace android {
+
+AACDecoder::AACDecoder(const sp<MediaSource> &source)
+    : mSource(source),
+      mStarted(false),
+      mBufferGroup(NULL),
+      mConfig(new tPVMP4AudioDecoderExternal),
+      mDecoderBuf(NULL),
+      mLastSeekTimeUs(0),
+      mNumSamplesOutput(0),
+      mInputBuffer(NULL) {
+}
+
+AACDecoder::~AACDecoder() {
+    if (mStarted) {
+        stop();
+    }
+
+    delete mConfig;
+    mConfig = NULL;
+}
+
+status_t AACDecoder::start(MetaData *params) {
+    CHECK(!mStarted);
+
+    mBufferGroup = new MediaBufferGroup;
+    mBufferGroup->add_buffer(new MediaBuffer(2048 * 2));
+
+    mConfig->outputFormat = OUTPUTFORMAT_16PCM_INTERLEAVED;
+    mConfig->aacPlusUpsamplingFactor = 0;
+    mConfig->aacPlusEnabled = false;
+
+    int32_t numChannels;
+    CHECK(mSource->getFormat()->findInt32(kKeyChannelCount, &numChannels));
+    mConfig->desiredChannels = numChannels;
+
+    UInt32 memRequirements = PVMP4AudioDecoderGetMemRequirements();
+    mDecoderBuf = malloc(memRequirements);
+
+    CHECK_EQ(PVMP4AudioDecoderInitLibrary(mConfig, mDecoderBuf),
+             MP4AUDEC_SUCCESS);
+
+    uint32_t type;
+    const void *data;
+    size_t size;
+    if (mSource->getFormat()->findData(kKeyESDS, &type, &data, &size)) {
+        ESDS esds((const char *)data, size);
+        CHECK_EQ(esds.InitCheck(), OK);
+
+        const void *codec_specific_data;
+        size_t codec_specific_data_size;
+        esds.getCodecSpecificInfo(
+                &codec_specific_data, &codec_specific_data_size);
+
+        mConfig->pInputBuffer = (UChar *)codec_specific_data;
+        mConfig->inputBufferCurrentLength = codec_specific_data_size;
+        mConfig->inputBufferMaxLength = 0;
+        mConfig->inputBufferUsedLength = 0;
+        mConfig->remainderBits = 0;
+
+        mConfig->pOutputBuffer = NULL;
+        mConfig->pOutputBuffer_plus = NULL;
+        mConfig->repositionFlag = false;
+
+        CHECK_EQ(PVMP4AudioDecoderConfig(mConfig, mDecoderBuf),
+                 MP4AUDEC_SUCCESS);
+    }
+
+    mSource->start();
+
+    mLastSeekTimeUs = 0;
+    mNumSamplesOutput = 0;
+    mStarted = true;
+
+    return OK;
+}
+
+status_t AACDecoder::stop() {
+    CHECK(mStarted);
+
+    if (mInputBuffer) {
+        mInputBuffer->release();
+        mInputBuffer = NULL;
+    }
+
+    free(mDecoderBuf);
+    mDecoderBuf = NULL;
+
+    delete mBufferGroup;
+    mBufferGroup = NULL;
+
+    mSource->stop();
+
+    mStarted = false;
+
+    return OK;
+}
+
+sp<MetaData> AACDecoder::getFormat() {
+    sp<MetaData> srcFormat = mSource->getFormat();
+
+    int32_t numChannels;
+    int32_t sampleRate;
+    CHECK(srcFormat->findInt32(kKeyChannelCount, &numChannels));
+    CHECK(srcFormat->findInt32(kKeySampleRate, &sampleRate));
+
+    sp<MetaData> meta = new MetaData;
+    meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_RAW);
+    meta->setInt32(kKeyChannelCount, numChannels);
+    meta->setInt32(kKeySampleRate, sampleRate);
+
+    return meta;
+}
+
+status_t AACDecoder::read(
+        MediaBuffer **out, const ReadOptions *options) {
+    status_t err;
+
+    *out = NULL;
+
+    int64_t seekTimeUs;
+    if (options && options->getSeekTo(&seekTimeUs)) {
+        CHECK(seekTimeUs >= 0);
+
+        mNumSamplesOutput = 0;
+
+        if (mInputBuffer) {
+            mInputBuffer->release();
+            mInputBuffer = NULL;
+        }
+    } else {
+        seekTimeUs = -1;
+    }
+
+    if (mInputBuffer == NULL) {
+        err = mSource->read(&mInputBuffer, options);
+
+        if (err != OK) {
+            return err;
+        }
+
+        if (seekTimeUs >= 0) {
+            CHECK(mInputBuffer->meta_data()->findInt64(
+                        kKeyTime, &mLastSeekTimeUs));
+
+            mNumSamplesOutput = 0;
+        }
+    }
+
+    MediaBuffer *buffer;
+    CHECK_EQ(mBufferGroup->acquire_buffer(&buffer), OK);
+
+    mConfig->pInputBuffer =
+        (UChar *)mInputBuffer->data() + mInputBuffer->range_offset();
+
+    mConfig->inputBufferCurrentLength = mInputBuffer->range_length();
+    mConfig->inputBufferMaxLength = 0;
+    mConfig->inputBufferUsedLength = 0;
+    mConfig->remainderBits = 0;
+
+    mConfig->pOutputBuffer = static_cast<Int16 *>(buffer->data());
+    mConfig->pOutputBuffer_plus = NULL;
+    mConfig->repositionFlag = false;
+
+    CHECK_EQ(PVMP4AudioDecodeFrame(mConfig, mDecoderBuf), MP4AUDEC_SUCCESS);
+
+    buffer->set_range(
+            0, mConfig->frameLength * sizeof(int16_t) * mConfig->desiredChannels);
+
+    mInputBuffer->set_range(
+            mInputBuffer->range_offset() + mConfig->inputBufferUsedLength,
+            mInputBuffer->range_length() - mConfig->inputBufferUsedLength);
+
+    if (mInputBuffer->range_length() == 0) {
+        mInputBuffer->release();
+        mInputBuffer = NULL;
+    }
+
+    buffer->meta_data()->setInt64(
+            kKeyTime,
+            mLastSeekTimeUs
+                + (mNumSamplesOutput * 1000000) / mConfig->samplingRate);
+
+    mNumSamplesOutput += mConfig->frameLength;
+
+    *out = buffer;
+
+    return OK;
+}
+
+}  // namespace android

media/libstagefright/codecs/aacdec/Android.mk

@@ -0,0 +1,158 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES := \
+	analysis_sub_band.cpp \
+ 	apply_ms_synt.cpp \
+ 	apply_tns.cpp \
+ 	buf_getbits.cpp \
+ 	byte_align.cpp \
+ 	calc_auto_corr.cpp \
+ 	calc_gsfb_table.cpp \
+ 	calc_sbr_anafilterbank.cpp \
+ 	calc_sbr_envelope.cpp \
+ 	calc_sbr_synfilterbank.cpp \
+ 	check_crc.cpp \
+ 	dct16.cpp \
+ 	dct64.cpp \
+ 	decode_huff_cw_binary.cpp \
+ 	decode_noise_floorlevels.cpp \
+ 	deinterleave.cpp \
+ 	digit_reversal_tables.cpp \
+ 	dst16.cpp \
+ 	dst32.cpp \
+ 	dst8.cpp \
+ 	esc_iquant_scaling.cpp \
+ 	extractframeinfo.cpp \
+ 	fft_rx4_long.cpp \
+ 	fft_rx4_short.cpp \
+ 	fft_rx4_tables_fxp.cpp \
+ 	find_adts_syncword.cpp \
+ 	fwd_long_complex_rot.cpp \
+ 	fwd_short_complex_rot.cpp \
+ 	gen_rand_vector.cpp \
+ 	get_adif_header.cpp \
+ 	get_adts_header.cpp \
+ 	get_audio_specific_config.cpp \
+ 	get_dse.cpp \
+ 	get_ele_list.cpp \
+ 	get_ga_specific_config.cpp \
+ 	get_ics_info.cpp \
+ 	get_prog_config.cpp \
+ 	get_pulse_data.cpp \
+ 	get_sbr_bitstream.cpp \
+ 	get_sbr_startfreq.cpp \
+ 	get_sbr_stopfreq.cpp \
+ 	get_tns.cpp \
+ 	getfill.cpp \
+ 	getgroup.cpp \
+ 	getics.cpp \
+ 	getmask.cpp \
+ 	hcbtables_binary.cpp \
+ 	huffcb.cpp \
+ 	huffdecode.cpp \
+ 	hufffac.cpp \
+ 	huffspec_fxp.cpp \
+ 	idct16.cpp \
+ 	idct32.cpp \
+ 	idct8.cpp \
+ 	imdct_fxp.cpp \
+ 	infoinit.cpp \
+ 	init_sbr_dec.cpp \
+ 	intensity_right.cpp \
+ 	inv_long_complex_rot.cpp \
+ 	inv_short_complex_rot.cpp \
+ 	iquant_table.cpp \
+ 	long_term_prediction.cpp \
+ 	long_term_synthesis.cpp \
+ 	lt_decode.cpp \
+ 	mdct_fxp.cpp \
+ 	mdct_tables_fxp.cpp \
+ 	mdst.cpp \
+ 	mix_radix_fft.cpp \
+ 	ms_synt.cpp \
+ 	pns_corr.cpp \
+ 	pns_intensity_right.cpp \
+ 	pns_left.cpp \
+ 	ps_all_pass_filter_coeff.cpp \
+ 	ps_all_pass_fract_delay_filter.cpp \
+ 	ps_allocate_decoder.cpp \
+ 	ps_applied.cpp \
+ 	ps_bstr_decoding.cpp \
+ 	ps_channel_filtering.cpp \
+ 	ps_decode_bs_utils.cpp \
+ 	ps_decorrelate.cpp \
+ 	ps_fft_rx8.cpp \
+ 	ps_hybrid_analysis.cpp \
+ 	ps_hybrid_filter_bank_allocation.cpp \
+ 	ps_hybrid_synthesis.cpp \
+ 	ps_init_stereo_mixing.cpp \
+ 	ps_pwr_transient_detection.cpp \
+ 	ps_read_data.cpp \
+ 	ps_stereo_processing.cpp \
+ 	pulse_nc.cpp \
+ 	pv_div.cpp \
+ 	pv_log2.cpp \
+ 	pv_normalize.cpp \
+ 	pv_pow2.cpp \
+ 	pv_sine.cpp \
+ 	pv_sqrt.cpp \
+ 	pvmp4audiodecoderconfig.cpp \
+ 	pvmp4audiodecoderframe.cpp \
+ 	pvmp4audiodecodergetmemrequirements.cpp \
+ 	pvmp4audiodecoderinitlibrary.cpp \
+ 	pvmp4audiodecoderresetbuffer.cpp \
+ 	q_normalize.cpp \
+ 	qmf_filterbank_coeff.cpp \
+ 	sbr_aliasing_reduction.cpp \
+ 	sbr_applied.cpp \
+ 	sbr_code_book_envlevel.cpp \
+ 	sbr_crc_check.cpp \
+ 	sbr_create_limiter_bands.cpp \
+ 	sbr_dec.cpp \
+ 	sbr_decode_envelope.cpp \
+ 	sbr_decode_huff_cw.cpp \
+ 	sbr_downsample_lo_res.cpp \
+ 	sbr_envelope_calc_tbl.cpp \
+ 	sbr_envelope_unmapping.cpp \
+ 	sbr_extract_extended_data.cpp \
+ 	sbr_find_start_andstop_band.cpp \
+ 	sbr_generate_high_freq.cpp \
+ 	sbr_get_additional_data.cpp \
+ 	sbr_get_cpe.cpp \
+ 	sbr_get_dir_control_data.cpp \
+ 	sbr_get_envelope.cpp \
+ 	sbr_get_header_data.cpp \
+ 	sbr_get_noise_floor_data.cpp \
+ 	sbr_get_sce.cpp \
+ 	sbr_inv_filt_levelemphasis.cpp \
+ 	sbr_open.cpp \
+ 	sbr_read_data.cpp \
+ 	sbr_requantize_envelope_data.cpp \
+ 	sbr_reset_dec.cpp \
+ 	sbr_update_freq_scale.cpp \
+ 	set_mc_info.cpp \
+ 	sfb.cpp \
+ 	shellsort.cpp \
+ 	synthesis_sub_band.cpp \
+ 	tns_ar_filter.cpp \
+ 	tns_decode_coef.cpp \
+ 	tns_inv_filter.cpp \
+ 	trans4m_freq_2_time_fxp.cpp \
+ 	trans4m_time_2_freq_fxp.cpp \
+ 	unpack_idx.cpp \
+ 	window_tables_fxp.cpp \
+ 	pvmp4setaudioconfig.cpp \
+        AACDecoder.cpp
+
+LOCAL_CFLAGS := -DAAC_PLUS -DHQ_SBR -DPARAMETRICSTEREO -DOSCL_IMPORT_REF= -DOSCL_EXPORT_REF= -DOSCL_UNUSED_ARG=
+
+LOCAL_C_INCLUDES := frameworks/base/media/libstagefright/include
+
+LOCAL_SHARED_LIBRARIES := \
+        libstagefright \
+        libutils
+
+LOCAL_MODULE := libstagefright_aacdec
+
+include $(BUILD_STATIC_LIBRARY)

media/libstagefright/codecs/aacdec/aac_mem_funcs.h

@@ -0,0 +1,50 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Filename: aac_mem_funcs.h
+ Funtions:
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+
+#include <string.h>
+
+#ifndef AAC_MEM_FUNCS_H
+#define AAC_MEM_FUNCS_H
+
+#define pv_memset(to, c, n)         memset(to, c, n)
+
+
+#define pv_memcpy(to, from, n)      memcpy(to, from, n)
+#define pv_memmove(to, from, n)     memmove(to, from, n)
+#define pv_memcmp(p, q, n)          memcmp(p, q, n)
+
+
+
+#endif

media/libstagefright/codecs/aacdec/analysis_sub_band.cpp

@@ -0,0 +1,289 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: analysis_sub_band.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 vec[],            Input vector, 32-bit
+    const Int32 *cosTerms,  Cosine Terms
+    Int   maxbands          number of bands used
+    Int32 *scratch_mem      Scratch memory
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement root squared of a number
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include "analysis_sub_band.h"
+#include "dst32.h"
+#include "idct32.h"
+#include "mdst.h"
+
+#include "aac_mem_funcs.h"
+#include "pv_audio_type_defs.h"
+#include "fxp_mul32.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+#ifdef HQ_SBR
+
+
+const Int32 exp_1_5_phi[32] =
+{
+
+    0x7FEA04B6,  0x7F380E1C, 0x7DD6176E, 0x7BC6209F,
+    0x790A29A4,  0x75A6326E, 0x719E3AF3, 0x6CF94326,
+    0x67BD4AFB,  0x61F15269, 0x5B9D5964, 0x54CA5FE4,
+    0x4D8165DE,  0x45CD6B4B, 0x3DB87023, 0x354E7460,
+    0x2C9977FB,  0x23A77AEF, 0x1A837D3A, 0x113A7ED6,
+    0x07D97FC2,  0xFE6E7FFE, 0xF5057F87, 0xEBAB7E60,
+    0xE26D7C89,  0xD9587A06, 0xD07976D9, 0xC7DB7308,
+    0xBF8C6E97,  0xB796698C, 0xB00563EF, 0xA8E25DC8,
+
+};
+
+#endif
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void analysis_sub_band_LC(Int32 vec[64],
+                          Int32 cosine_total[],
+                          Int32 maxBand,
+                          Int32 scratch_mem[][64])
+{
+    Int32 i;
+    Int32 *cosine_term = &scratch_mem[0][0];
+    Int32 *sine_term   = &scratch_mem[0][32];
+
+    Int32 *pt_cos_t;
+
+
+    Int32 *pt_vec    =  &vec[0];
+    Int32 *pt_vec_32 =  &vec[32];
+
+    Int32 *pt_cos = cosine_term;
+    Int32 *pt_sin = sine_term;
+
+    for (i = 8; i != 0; i--)
+    {
+        Int32 tmp1 = *(pt_vec_32++);
+        Int32 tmp3 = *(pt_vec_32++);
+        Int32 tmp2 = *(pt_vec++);
+        Int32 tmp4 = *(pt_vec++);
+        *(pt_cos++) = (tmp1 - tmp2) >> 1;
+        *(pt_cos++) = (tmp3 - tmp4) >> 1;
+        *(pt_sin++) = (tmp1 + tmp2);
+        *(pt_sin++) = (tmp3 + tmp4);
+        tmp1 = *(pt_vec_32++);
+        tmp3 = *(pt_vec_32++);
+        tmp2 = *(pt_vec++);
+        tmp4 = *(pt_vec++);
+        *(pt_cos++) = (tmp1 - tmp2) >> 1;
+        *(pt_cos++) = (tmp3 - tmp4) >> 1;
+        *(pt_sin++) = (tmp1 + tmp2);
+        *(pt_sin++) = (tmp3 + tmp4);
+    }
+
+
+    idct_32(cosine_term, scratch_mem[1]);
+
+    dst_32(sine_term, scratch_mem[1]);
+
+    pt_cos  = cosine_term;
+    pt_sin  = sine_term;
+
+    pt_cos_t  = cosine_total;
+
+    for (i = 0; i < maxBand; i += 4)
+    {
+        *(pt_cos_t++) = (*(pt_cos++) + *(pt_sin++));
+        *(pt_cos_t++) = (-*(pt_cos++) + *(pt_sin++));
+        *(pt_cos_t++) = (-*(pt_cos++) - *(pt_sin++));
+        *(pt_cos_t++) = (*(pt_cos++) - *(pt_sin++));
+    }
+
+    pt_cos_t  = &cosine_total[maxBand];
+
+    for (i = (32 - maxBand); i != 0; i--)
+    {
+        *(pt_cos_t++) =   0;
+    }
+}
+
+
+#ifdef HQ_SBR
+
+
+void analysis_sub_band(Int32 vec[64],
+                       Int32 cosine_total[],
+                       Int32 sine_total[],
+                       Int32 maxBand,
+                       Int32 scratch_mem[][64])
+{
+    Int32 i;
+    Int32 *sine_term1   = &scratch_mem[0][0];
+    Int32 *sine_term2   = &scratch_mem[0][32];
+
+    Int32 temp1;
+    Int32 temp2;
+    Int32 temp3;
+    Int32 temp4;
+
+    const Int32 *pt_exp;
+    Int32 exp_1_5;
+
+    Int32 *pt_vec    =  &vec[0];
+    Int32 *pt_vec_32 =  &vec[32];
+
+    Int32 *pt_cos1 = pt_vec;
+    Int32 *pt_sin1 = sine_term1;
+    Int32 *pt_cos2 = pt_vec_32;
+    Int32 *pt_sin2 = sine_term2;
+
+
+    pv_memcpy(sine_term1, vec, 64*sizeof(*vec));
+
+    mdst_32(sine_term1, scratch_mem[1]);
+    mdst_32(sine_term2, scratch_mem[1]);
+
+    mdct_32(&vec[ 0]);
+    mdct_32(&vec[32]);
+
+    pt_cos1 = &vec[ 0];
+    pt_cos2 = &vec[32];
+
+
+    pt_sin1 = sine_term1;
+    pt_sin2 = sine_term2;
+
+    pt_vec     = cosine_total;
+    pt_vec_32  =   sine_total;
+    pt_exp  = exp_1_5_phi;
+
+    temp3 = (*(pt_cos1++) - *(pt_sin2++));
+    temp4 = (*(pt_sin1++) + *(pt_cos2++));
+
+    for (i = 0; i < maxBand; i += 2)
+    {
+
+        exp_1_5 = *(pt_exp++);
+        temp1    =  cmplx_mul32_by_16(temp3,  temp4, exp_1_5);
+        temp2    =  cmplx_mul32_by_16(temp4, -temp3, exp_1_5);
+
+        *(pt_vec++)    =  shft_lft_1(temp1);
+        *(pt_vec_32++) =  shft_lft_1(temp2);
+
+        temp3 = (*(pt_cos1++) + *(pt_sin2++));
+        temp4 = (*(pt_sin1++) - *(pt_cos2++));
+
+        exp_1_5 = *(pt_exp++);
+        temp1    =  cmplx_mul32_by_16(temp3,  temp4, exp_1_5);
+        temp2    =  cmplx_mul32_by_16(temp4, -temp3, exp_1_5);
+
+        *(pt_vec++)    =  shft_lft_1(temp1);
+        *(pt_vec_32++) =  shft_lft_1(temp2);
+
+        temp3 = (*(pt_cos1++) - *(pt_sin2++));
+        temp4 = (*(pt_sin1++) + *(pt_cos2++));
+    }
+
+
+    pt_cos1  = &cosine_total[maxBand];  /* in the chance that maxband is not even */
+    pt_sin1  = &sine_total[maxBand];
+
+    for (i = (32 - maxBand); i != 0; i--)
+    {
+        *(pt_cos1++) =  0;
+        *(pt_sin1++) =  0;
+    }
+
+}
+
+
+#endif
+
+#endif
+

media/libstagefright/codecs/aacdec/analysis_sub_band.h

@@ -0,0 +1,82 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/analysis_sub_band.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef ANALYSIS_SUB_BAND_H
+#define ANALYSIS_SUB_BAND_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+
+    void analysis_sub_band_LC(Int32 vec[64],
+    Int32 cosine_total[],
+    Int32 maxBand,
+    Int32 scratch_mem[][64]);
+
+#ifdef HQ_SBR
+
+
+    void analysis_sub_band(Int32 vec[64],
+                           Int32 cosine_total[],
+                           Int32 sine_total[],
+                           Int32 maxBand,
+                           Int32 scratch_mem[][64]);
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* ANALYSIS_SUB_BAND_H */

media/libstagefright/codecs/aacdec/apply_ms_synt.cpp

@@ -0,0 +1,454 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/apply_ms_synt.c
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Updated pseudocode to correct capitalized format for the IF
+ FOR and WHILE statements.
+
+ Description: Delete local variable start_indx, since it is never used.
+
+ Who:                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+
+    pFrameInfo = Pointer to structure that holds information about each group.
+                 (long block flag, number of windows, scalefactor bands
+                  per group, etc.)
+                 [const pFrameInfo * const]
+
+    group      = Array that contains indexes of the
+                 first window in the next group.
+                 [const Int *, length 8]
+
+    mask_map   = Array that denotes whether M/S stereo is turned on for
+                 each grouped scalefactor band.
+                 [const Int *, length MAX_SFB]
+
+    codebook_map = Array that denotes which Huffman codebook was used for
+                   the encoding of each grouped scalefactor band.
+                   [const Int *, length MAX_SFB]
+
+    coefLeft = Array containing the fixed-point spectral coefficients
+                       for the left channel.
+                       [Int32 *, length 1024]
+
+    coefRight = Array containing the fixed-point spectral coefficients
+                        for the right channel.
+                        [Int32 *, length 1024]
+
+    q_formatLeft = The Q-format for the left channel's fixed-point spectral
+                   coefficients, on a per-scalefactor band, non-grouped basis.
+                   [Int *, length MAX_SFB]
+
+    q_formatRight = The Q-format for the right channel's fixed-point spectral
+                    coefficients, on a per-scalefactor band, non-grouped basis.
+                    [Int *, length MAX_SFB]
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    coefLeft  = Contains the new spectral information.
+
+    coefRight = Contains the new spectral information.
+
+    q_formatLeft      = Q-format may be updated with changed to fixed-point
+                        data in coefLeft.
+
+    q_formatRight     = Q-format may be updated with changed to fixed-point
+                        data in coefRight.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function steps through all of the tools that are applied on a
+ scalefactor band basis.
+
+ The use of M/S stereo is checked for.  For M/S decoding to take
+ place, ms_mask_map must be TRUE for that particular SFB, AND the Huffman
+ codebook used must be < NOISE_HCB.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 14496-3:1999(E)
+     Part 3
+        Subpart 4.6.7.1   M/S stereo
+        Subpart 4.6.2     ScaleFactors
+
+ (2) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    pCoefRight = coefRight;
+    pCoefLeft = coefLeft;
+
+    window_start = 0;
+    tot_sfb = 0;
+
+    coef_per_win = pFrameInfo->coef_per_win[0];
+
+    sfb_per_win = pFrameInfo->sfb_per_win[0];
+
+    DO
+
+        pBand     = pFrameInfo->win_sfb_top[window_start];
+
+        partition = *(pGroup);
+
+        pGroup = pGroup + 1;
+
+        band_start = 0;
+
+        wins_in_group = (partition - window_start);
+
+        FOR (sfb = sfb_per_win; sfb > 0; sfb--)
+
+            band_stop = *(pBand);
+
+            pBand = pBand + 1;
+
+            codebook = *(pCodebookMap);
+
+            pCodebookMap = pCodebookMap + 1;
+
+            mask_enabled = *(pMaskMap);
+
+            pMaskMap = pMaskMap + 1;
+
+            IF (codebook < NOISE_HCB)
+            THEN
+                IF (mask_enabled != FALSE)
+                THEN
+                    band_length = band_stop - band_start;
+
+                    CALL
+                        ms_synt(
+                            wins_in_group,
+                            coef_per_win,
+                            sfb_per_win,
+                            band_length,
+                           &(pCoefLeft[band_start]),
+                           &(pCoefRight[band_start]),
+                           &(q_formatLeft[tot_sfb]),
+                           &(q_formatRight[tot_sfb]) );
+
+                    MODIFYING
+                        &(pCoefLeft[band_start]),
+                        &(pCoefRight[band_start]),
+                        &(q_formatLeft[tot_sfb]),
+                        &(q_formatRight[tot_sfb])
+
+                    RETURNING
+                        None
+                ENDIF
+            ENDIF
+            band_start = band_stop;
+
+            tot_sfb = tot_sfb + 1;
+
+        ENDFOR
+
+        pCoefRight = pCoefRight + coef_per_win * wins_in_group;
+        pCoefLeft  = pCoefLeft  + coef_per_win * wins_in_group;
+
+        wins_in_group = wins_in_group - 1;
+
+        tot_sfb = tot_sfb + sfb_per_win * wins_in_group;
+
+        window_start = partition;
+
+    WHILE (partition < pFrameInfo->num_win);
+
+    return;
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "apply_ms_synt.h"
+#include "e_huffmanconst.h"
+#include "ms_synt.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void apply_ms_synt(
+    const FrameInfo * const pFrameInfo,
+    const Int        group[],
+    const Bool       mask_map[],
+    const Int        codebook_map[],
+    Int32      coefLeft[],
+    Int32      coefRight[],
+    Int        q_formatLeft[MAXBANDS],
+    Int        q_formatRight[MAXBANDS])
+
+{
+
+    Int32   *pCoefRight;
+
+    Int32   *pCoefLeft;
+
+    Int     tot_sfb;
+    Int     sfb;
+
+    Int     band_length;
+    Int     band_start;
+    Int     band_stop;
+    Int     coef_per_win;
+
+    Int     codebook;
+    Int     partition;
+    Int     window_start;
+
+    Int     sfb_per_win;
+    Int     wins_in_group;
+
+    const Int16 *pBand;
+    const Int   *pCodebookMap  = codebook_map;
+    const Int   *pGroup        = group;
+    const Bool  *pMaskMap      = mask_map;
+
+    Bool mask_enabled;
+
+    pCoefRight = coefRight;
+    pCoefLeft = coefLeft;
+
+    window_start = 0;
+    tot_sfb = 0;
+
+    /*
+     * Each window in the frame should have the same number of coef's,
+     * so coef_per_win is constant in all the loops
+     */
+    coef_per_win = pFrameInfo->coef_per_win[0];
+
+    /*
+     * Because the number of scalefactor bands per window should be
+     * constant for each frame, sfb_per_win can be determined outside
+     * of the loop.
+     *
+     * For 44.1 kHz sampling rate   sfb_per_win = 14 for short windows
+     *                              sfb_per_win = 49 for long  windows
+     */
+
+    sfb_per_win = pFrameInfo->sfb_per_win[0];
+
+    do
+    {
+        pBand     = pFrameInfo->win_sfb_top[window_start];
+
+        /*
+         * Partition is equal to the first window in the next group
+         *
+         * { Group 0    }{      Group 1      }{    Group 2 }{Group 3}
+         * [win 0][win 1][win 2][win 3][win 4][win 5][win 6][win 7]
+         *
+         * pGroup[0] = 2
+         * pGroup[1] = 5
+         * pGroup[2] = 7
+         * pGroup[3] = 8
+         */
+
+        partition = *(pGroup++);
+
+        band_start = 0;
+
+        wins_in_group = (partition - window_start);
+
+        for (sfb = sfb_per_win; sfb > 0; sfb--)
+        {
+            /* band is offset table, band_stop is last coef in band */
+            band_stop = *(pBand++);
+
+            codebook = *(pCodebookMap++);
+
+            mask_enabled = *(pMaskMap++);
+
+            /*
+             * When a codebook < NOISE_HCB is found, apply M/S to that
+             * scalefactorband.
+             *
+             * Example...  sfb[3] == NOISE_HCB
+             *
+             * [ Group 1                                      ]
+             * [win 0                 ][win 1                 ]
+             * [0][1][2][X][4][5][6][7][0][1][2][X][4][5][6][7]
+             *
+             * The for(sfb) steps through the sfb's 0-7 in win 0.
+             *
+             * Finding sfb[3]'s codebook == NOISE_HCB, the code
+             * steps through all the windows in the group (they share
+             * the same scalefactors) and replaces that sfb with noise.
+             */
+
+            if (codebook < NOISE_HCB)
+            {
+                if (mask_enabled != FALSE)
+                {
+                    band_length = band_stop - band_start;
+
+                    ms_synt(
+                        wins_in_group,
+                        coef_per_win,
+                        sfb_per_win,
+                        band_length,
+                        &(pCoefLeft[band_start]),
+                        &(pCoefRight[band_start]),
+                        &(q_formatLeft[tot_sfb]),
+                        &(q_formatRight[tot_sfb]));
+                }
+            }
+            band_start = band_stop;
+
+            tot_sfb++;
+
+        } /* for (sfb) */
+
+        /*
+         * Increment pCoefRight and pCoefLeft by
+         * coef_per_win * the number of windows
+         */
+
+        pCoefRight += coef_per_win * wins_in_group;
+        pCoefLeft  += coef_per_win * wins_in_group--;
+
+        /*
+         * Increase tot_sfb by sfb_per_win times the number of windows minus 1.
+         * The minus 1 comes from the fact that tot_sfb is already pointing
+         * to the first sfb in the 2nd window of the group.
+         */
+        tot_sfb += sfb_per_win * wins_in_group;
+
+        window_start = partition;
+
+    }
+    while (partition < pFrameInfo->num_win);
+
+    /* pFrameInfo->num_win = 1 for long windows, 8 for short_windows */
+
+    return;
+
+} /* apply_ms_synt() */
+
+

media/libstagefright/codecs/aacdec/apply_ms_synt.h

@@ -0,0 +1,94 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/apply_ms_synt.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes the function declaration for apply_ms_synt().
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef APPLY_MS_SYNT_H
+#define APPLY_MS_SYNT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_frameinfo.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+void apply_ms_synt(
+    const FrameInfo * const pFrameInfo,
+    const Int        group[],
+    const Bool       mask_map[],
+    const Int        codebook_map[],
+    Int32      coefLeft[],
+    Int32      coefRight[],
+    Int        q_formatLeft[MAXBANDS],
+    Int        q_formatRight[MAXBANDS]);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/apply_tns.cpp

@@ -0,0 +1,424 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: apply_tns.c
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    coef =       Array of input coefficients.
+                 [Int32 *, length 1024]
+
+    q_format   = Array of q-formats, one per scalefactor band, for the
+                 entire frame.  In the case of tns_inv_filter, only the
+                 first element is used, since the input to tns_inv_filter
+                 is all of the same q-format.
+                 [Int * const, length MAX_SFB]
+
+    pFrameInfo = Pointer to structure that holds information about each group.
+                 (long block flag, number of windows, scalefactor bands
+                  per group, etc.)
+                 [const FrameInfo * const]
+
+    pTNS_frame_info = pointer to structure containing the details on each
+                      TNS filter (order, filter coefficients,
+                      coefficient res., etc.)
+                      [TNS_frame_info * const]
+
+    inverse_flag   = TRUE  if inverse filter is to be applied.
+                     FALSE if forward filter is to be applied.
+                     [Bool]
+
+    scratch_Int_buffer = Pointer to scratch memory to store the
+                           filter's state memory.  Used by both
+                           tns_inv_filter.
+                           [Int *, length TNS_MAX_ORDER]
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    coef[]   = TNS altered data.
+    q_format = q-formats in TNS scalefactor bands may be modified.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    This function applies either the TNS forward or TNS inverse filter, based
+    on inverse_flag being FALSE or TRUE, respectively.
+
+    For the TNS forward filter, the data fed into tns_ar_filter is normalized
+    all to the same q-format.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+    The input, coef, should use all 32-bits, else the scaling by tns_ar_filter
+    may eliminate the data.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 14496-3:1999(E)
+     Part 3
+        Subpart 4.6.8 (Temporal Noise Shaping)
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    NO PSEUDO-CODE
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_tns_frame_info.h"
+#include "s_tnsfilt.h"
+#include "s_frameinfo.h"
+#include "tns_inv_filter.h"
+#include "tns_ar_filter.h"
+#include "apply_tns.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void apply_tns(
+    Int32                  coef[],
+    Int                    q_format[],
+    const FrameInfo      * const pFrameInfo,
+    TNS_frame_info * const pTNS_frame_info,
+    const Bool                   inverse_flag,
+    Int32                  scratch_Int_buffer[])
+{
+    Int num_tns_bands;
+    Int num_TNS_coef;
+
+    Int f;
+
+    Int tempInt;
+    Int tempInt2;
+
+    Int sfb_per_win;
+    Int sfbWidth;
+
+    Int coef_per_win;
+    Int min_q;
+    Int win;
+
+    Int32 *pCoef = coef;
+    Int32 *pTempCoef;
+
+    Int   *pStartQformat = q_format;
+
+    Int   *pQformat;
+    Int32 *pLpcCoef;
+
+    Int sfb_offset;
+
+    const Int16 *pWinSfbTop;
+
+    TNSfilt *pFilt;
+
+    coef_per_win = pFrameInfo->coef_per_win[0];
+    sfb_per_win  = pFrameInfo->sfb_per_win[0];
+
+    win = 0;
+
+    pLpcCoef = pTNS_frame_info->lpc_coef;
+
+    pFilt = pTNS_frame_info->filt;
+
+    do
+    {
+        for (f = pTNS_frame_info->n_filt[win]; f > 0; f--)
+        {
+            /* Skip to the next filter if the order is 0 */
+            tempInt = pFilt->order;
+
+            if (tempInt > 0)
+            {
+                /*
+                 * Do not call tns_ar_filter or tns_inv_filter
+                 * if the difference
+                 * between start_coef and stop_stop is <= 0.
+                 *
+                 */
+                num_TNS_coef = (pFilt->stop_coef - pFilt->start_coef);
+
+                if (num_TNS_coef > 0)
+                {
+                    if (inverse_flag != FALSE)
+                    {
+                        tns_inv_filter(
+                            &(pCoef[pFilt->start_coef]),
+                            num_TNS_coef,
+                            pFilt->direction,
+                            pLpcCoef,
+                            pFilt->q_lpc,
+                            pFilt->order,
+                            scratch_Int_buffer);
+                    }
+                    else
+                    {
+                        num_tns_bands = (pFilt->stop_band - pFilt->start_band);
+
+                        /*
+                         * pQformat is initialized only once.
+                         *
+                         * Here is how TNS is applied on scalefactor bands
+                         *
+                         * [0][1][2][3][4][5][6][7][8]
+                         *  |                        \
+                         * start_band               stop_band
+                         *
+                         * In this example, TNS would be applied to 8
+                         * scalefactor bands, 0-7.
+                         *
+                         * pQformat is initially set to &(pStartQformat[8])
+                         *
+                         * 1st LOOP
+                         *      Entry: pQformat = &(pStartQformat[8])
+                         *
+                         *      pQformat is pre-decremented 8 times in the
+                         *      search for min_q
+                         *
+                         *      Exit:  pQformat = &(pStartQformat[0])
+                         *
+                         * 2nd LOOP
+                         *      Entry: pQformat = &(pStartQformat[0])
+                         *
+                         *      pQformat is post-incremented 8 times in the
+                         *      normalization of the data loop.
+                         *
+                         *      Exit:  pQformat = &(pStartQformat[8]
+                         *
+                         *
+                         * shift_amt = tns_ar_filter(...)
+                         *
+                         * 3rd LOOP
+                         *      Entry: pQformat = &(pStartQformat[8])
+                         *
+                         *      pQformat is pre-decremented 8 times in the
+                         *      adjustment of the q-format to min_q - shift_amt
+                         *
+                         *      Exit:  pQformat = &(pStartQformat[0])
+                         *
+                         */
+
+                        pQformat =
+                            &(pStartQformat[pFilt->stop_band]);
+
+                        /*
+                         * Scan the array of q-formats and find the minimum over
+                         * the range where the filter is to be applied.
+                         *
+                         * At the end of this scan,
+                         * pQformat = &(q-format[pFilt->start_band]);
+                         *
+                         */
+
+                        min_q = INT16_MAX;
+
+                        for (tempInt = num_tns_bands; tempInt > 0; tempInt--)
+                        {
+                            tempInt2 = *(--pQformat);
+
+                            if (tempInt2 < min_q)
+                            {
+                                min_q = tempInt2;
+                            }
+                        } /* for(tempInt = num_bands; tempInt > 0; tempInt--)*/
+
+                        /*
+                         * Set up the pointers so we can index into coef[]
+                         * on a scalefactor band basis.
+                         */
+                        tempInt = pFilt->start_band;
+
+                        tempInt--;
+
+                        /* Initialize sfb_offset and pWinSfbTop */
+                        if (tempInt >= 0)
+                        {
+                            pWinSfbTop =
+                                &(pFrameInfo->win_sfb_top[win][tempInt]);
+
+                            sfb_offset = *(pWinSfbTop++);
+                        }
+                        else
+                        {
+                            pWinSfbTop = pFrameInfo->win_sfb_top[win];
+                            sfb_offset = 0;
+                        }
+
+                        pTempCoef = pCoef + pFilt->start_coef;
+
+                        /* Scale the data in the TNS bands to min_q q-format */
+                        for (tempInt = num_tns_bands; tempInt > 0; tempInt--)
+                        {
+                            sfbWidth  = *(pWinSfbTop++) - sfb_offset;
+
+                            sfb_offset += sfbWidth;
+
+                            tempInt2 = *(pQformat++) - min_q;
+
+                            /*
+                             * This should zero out the data in one scalefactor
+                             * band if it is so much less than the neighboring
+                             * scalefactor bands.
+                             *
+                             * The only way this "should" happen is if one
+                             * scalefactor band contains zero data.
+                             *
+                             * Zero data can be of any q-format, but we always
+                             * set it very high to avoid the zero-data band being
+                             * picked as the one to normalize to in the scan for
+                             * min_q.
+                             *
+                             */
+                            if (tempInt2 > 31)
+                            {
+                                tempInt2 = 31;
+                            }
+
+                            for (sfbWidth >>= 2; sfbWidth > 0; sfbWidth--)
+                            {
+                                *(pTempCoef++) >>= tempInt2;
+                                *(pTempCoef++) >>= tempInt2;
+                                *(pTempCoef++) >>= tempInt2;
+                                *(pTempCoef++) >>= tempInt2;
+                            }
+
+                        } /* for(tempInt = num_bands; tempInt > 0; tempInt--)*/
+
+                        tempInt2 =
+                            tns_ar_filter(
+                                &(pCoef[pFilt->start_coef]),
+                                num_TNS_coef,
+                                pFilt->direction,
+                                pLpcCoef,
+                                pFilt->q_lpc,
+                                pFilt->order);
+
+                        /*
+                         * Update the q-format for all the scalefactor bands
+                         * taking into account the adjustment caused by
+                         * tns_ar_filter
+                         */
+
+                        min_q -= tempInt2;
+
+                        for (tempInt = num_tns_bands; tempInt > 0; tempInt--)
+                        {
+                            *(--pQformat) = min_q;
+                        }
+
+                    } /* if (inverse_flag != FALSE) */
+
+                } /* if (num_TNS_coef > 0) */
+
+                pLpcCoef += pFilt->order;
+
+            } /* if (tempInt > 0) */
+
+            pFilt++;
+
+        } /* for (f = pTNSinfo->n_filt; f > 0; f--) */
+
+        pCoef += coef_per_win;
+        pStartQformat += sfb_per_win;
+
+        win++;
+
+    }
+    while (win < pFrameInfo->num_win);
+
+    return;
+
+} /* apply_tns() */

media/libstagefright/codecs/aacdec/apply_tns.h

@@ -0,0 +1,113 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/apply_tns.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Updated per review comments.
+
+ Description: Changed function prototype to mirror changes made in apply_tns.c
+
+ Description: The scratch memory was mistakenly declared here as type "Int32"
+ It should have been "Int"
+
+ Who:                       Date:
+ Description:
+
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This include file contains the function declaration for
+ apply_tns.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef APPLY_TNS_H
+#define APPLY_TNS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_tns_frame_info.h"
+#include "s_frameinfo.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void apply_tns(
+        Int32                  coef[],
+        Int                    q_format[],
+        const FrameInfo      * const pFrameInfo,
+        TNS_frame_info * const pTNS_frame_info,
+        const Bool                   inverse_flag,
+        Int32                  scratch_Int_buffer[]);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/bit_reversal_swap.h

@@ -0,0 +1,93 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Pathname: ./include/bit_reversal_swap.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Changed definitions from Int to Int32 for Data[]
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for function bit_reversal_swap()
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BIT_REVERSAL_SWAP_H
+#define BIT_REVERSAL_SWAP_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+extern const Int Index_64_a[];
+extern const Int Index_64_b[];
+
+extern const Int Index_512_a[];
+extern const Int Index_512_b[];
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+void bit_reversal_swap(
+    Int32        Data[],
+    const Int *pIndex_a,
+    const Int *pIndex_b);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* BIT_REVERSAL_SWAP_H */

media/libstagefright/codecs/aacdec/buf_getbits.cpp

@@ -0,0 +1,167 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: buf_getbits.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Arguments:   hBitBuf Handle to Bitbuffer
+              n       Number of bits to read
+
+ Return:      bits
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+            Reads n bits from Bitbuffer
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+#include    "buf_getbits.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+UInt32 buf_getbits(BIT_BUFFER * hBitBuf, Int32 n)
+{
+
+    /* read bits from MSB side */
+    if (hBitBuf->buffered_bits <= 16)
+    {
+        hBitBuf->buffer_word    = (hBitBuf->buffer_word << 16) | (*(hBitBuf->char_ptr++) << 8);
+        hBitBuf->buffer_word   |= *(hBitBuf->char_ptr++);
+        hBitBuf->buffered_bits += 16;
+    }
+
+    hBitBuf->buffered_bits -= n;
+    hBitBuf->nrBitsRead    += n;
+
+    return ((hBitBuf->buffer_word >> hBitBuf->buffered_bits) & ((1 << n) - 1));
+
+}
+
+
+UInt32 buf_get_1bit(BIT_BUFFER * hBitBuf)
+{
+
+    /* read bits from MSB side */
+    if (hBitBuf->buffered_bits <= 16)
+    {
+        hBitBuf->buffer_word    = (hBitBuf->buffer_word << 16) | (*(hBitBuf->char_ptr++) << 8);
+        hBitBuf->buffer_word   |= *(hBitBuf->char_ptr++);
+        hBitBuf->buffered_bits += 16;
+    }
+
+    hBitBuf->buffered_bits--;
+    hBitBuf->nrBitsRead++;
+
+    return ((hBitBuf->buffer_word >> hBitBuf->buffered_bits) & 1);
+
+}
+
+#endif

media/libstagefright/codecs/aacdec/buf_getbits.h

@@ -0,0 +1,94 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+  Filename: buf_getbits.h
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BUF_GETBITS_H
+#define BUF_GETBITS_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "s_bit_buffer.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+    UInt32 buf_getbits(BIT_BUFFER * hBitBuf, Int32 n);
+
+    UInt32 buf_get_1bit(BIT_BUFFER * hBitBuf);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/buffer_normalization.h

@@ -0,0 +1,93 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/buffer_normalization.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Changed definitions from Int to Int32 for IO_buffer[]
+
+ Description:  Added copyrigth notice, added 'const' definitions to function
+
+ Who:                          Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for function buffer_normalization()
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef BUFFER_NORMALIZATION_H
+#define BUFFER_NORMALIZATION_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define     ALL_ZEROS_BUFFER     -100
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+void buffer_normalization(
+    Int     q_format,
+    Int32   IO_buffer[],
+    const Int     buffer_size,
+    Int   * const pExp);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* BUFFER_NORMALIZATION_H */

media/libstagefright/codecs/aacdec/byte_align.cpp

@@ -0,0 +1,179 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pInputStream = pointer to a BITS structure that holds information
+                   regarding the input stream.
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    pInputStream->usedBits is rounded up to a number that represents the next
+    byte boundary.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Makes the input stream structure pointed to align to the next byte boundary.
+ If it is already at a byte boundary it is left alone.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+  This function shall not use global or static variables.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void byte_align(
+    BITS  *pInputStream)
+
+    MODIFYING(pInputStream->usedBits = pInputStream->usedBits +
+                (pInputStream->usedBits + 7) % 8)
+
+    RETURN(nothing)
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+
+ STACK USAGE:
+
+     where:
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES:
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+
+#include "pv_audio_type_defs.h"
+#include "s_bits.h"
+#include "ibstream.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*
+ * A negative number was used for this mask so that it works on both
+ * 16-bit or 32-bit machines. The mask must be cast to unsigned int to
+ * work with TI compiler, ver 1.80.
+ */
+#define BYTE_ALIGN_MASK    ((UInt)(-8))
+
+#define BYTE_ALIGN_ROUNDUP  7
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void byte_align(
+    BITS  *pInputStream)
+{
+    /*
+     * Round up to the next byte by adding 7 and masking off with
+     * FFF8 or FFFFFFF8. The masking operation is a faster way to
+     * perform modulo arithmetic if the number is a power of 2.
+     *
+     * This code is the same as
+     * pInputStream->usedBits += (pInputStream->usedBits + 7) % 8
+     */
+    pInputStream->usedBits += BYTE_ALIGN_ROUNDUP;
+    pInputStream->usedBits &= BYTE_ALIGN_MASK;
+
+    return;
+}
+

media/libstagefright/codecs/aacdec/calc_auto_corr.cpp

@@ -0,0 +1,416 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: calc_auto_corr.c
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#ifdef AAC_PLUS
+
+
+#include    "calc_auto_corr.h"
+#include    "aac_mem_funcs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#include    "fxp_mul32.h"
+#include    "pv_normalize.h"
+
+#define N   2
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+
+void calc_auto_corr_LC(struct ACORR_COEFS *ac,
+                       Int32  realBuf[][32],
+                       Int32  bd,
+                       Int32  len)
+{
+    Int32 j;
+    Int32 temp1;
+    Int32 temp3;
+    Int32 temp5;
+
+    int64_t temp_r01r;
+    int64_t temp_r02r;
+    int64_t temp_r11r;
+    int64_t temp_r12r;
+    int64_t temp_r22r;
+    int64_t max = 0;
+
+
+    temp1 = (realBuf[ 0][bd]) >> N;
+    temp3 = (realBuf[-1][bd]) >> N;
+    temp5 = (realBuf[-2][bd]) >> N;
+
+
+    temp_r11r = fxp_mac64_Q31(0, temp3, temp3);   /* [j-1]*[j-1]  */
+    temp_r12r = fxp_mac64_Q31(0, temp3, temp5);   /* [j-1]*[j-2]  */
+    temp_r22r = fxp_mac64_Q31(0, temp5, temp5);   /* [j-2]*[j-2]  */
+
+    temp_r01r = 0;
+    temp_r02r = 0;
+
+    for (j = 1; j < len; j++)
+    {
+        temp_r01r = fxp_mac64_Q31(temp_r01r, temp1, temp3);    /* [j  ]*[j-1]  */
+        temp_r02r = fxp_mac64_Q31(temp_r02r, temp1, temp5);    /* [j  ]*[j-2]  */
+        temp_r11r = fxp_mac64_Q31(temp_r11r, temp1, temp1);    /* [j-1]*[j-1]  */
+
+        temp5 = temp3;
+        temp3 = temp1;
+        temp1 = (realBuf[j][bd]) >> N;
+    }
+
+
+    temp_r22r += temp_r11r;
+    temp_r12r += temp_r01r;          /* [j-1]*[j-2]  */
+
+    temp_r22r  = fxp_mac64_Q31(temp_r22r, -temp3, temp3);
+
+    temp_r01r = fxp_mac64_Q31(temp_r01r, temp1, temp3);
+    temp_r02r = fxp_mac64_Q31(temp_r02r, temp1, temp5);
+
+    max  |= temp_r01r ^(temp_r01r >> 63);
+    max  |= temp_r02r ^(temp_r02r >> 63);
+    max  |= temp_r11r;
+    max  |= temp_r12r ^(temp_r12r >> 63);
+    max  |= temp_r22r;
+
+    if (max)
+    {
+        temp1 = (UInt32)(max >> 32);
+        if (temp1)
+        {
+            temp3 = 33 - pv_normalize(temp1);
+            ac->r01r = (Int32)(temp_r01r >> temp3);
+            ac->r02r = (Int32)(temp_r02r >> temp3);
+            ac->r11r = (Int32)(temp_r11r >> temp3);
+            ac->r12r = (Int32)(temp_r12r >> temp3);
+            ac->r22r = (Int32)(temp_r22r >> temp3);
+
+        }
+        else
+        {
+            temp3 = pv_normalize(((UInt32)max) >> 1) - 2;
+
+            if (temp3 > 0)
+            {
+                ac->r01r = (Int32)(temp_r01r << temp3);
+                ac->r02r = (Int32)(temp_r02r << temp3);
+                ac->r11r = (Int32)(temp_r11r << temp3);
+                ac->r12r = (Int32)(temp_r12r << temp3);
+                ac->r22r = (Int32)(temp_r22r << temp3);
+            }
+            else
+            {
+                temp3 = -temp3;
+                ac->r01r = (Int32)(temp_r01r >> temp3);
+                ac->r02r = (Int32)(temp_r02r >> temp3);
+                ac->r11r = (Int32)(temp_r11r >> temp3);
+                ac->r12r = (Int32)(temp_r12r >> temp3);
+                ac->r22r = (Int32)(temp_r22r >> temp3);
+            }
+
+        }
+
+        /*
+         *  ac->det = ac->r11r*ac->r22r - rel*(ac->r12r*ac->r12r);
+         */
+        /* 1/(1 + 1e-6) == 1 - 1e-6 */
+        /* 2^-20 == 1e-6 */
+        ac->det  = fxp_mul32_Q30(ac->r12r, ac->r12r);
+
+        ac->det -= ac->det >> 20;
+
+        ac->det  = fxp_mul32_Q30(ac->r11r, ac->r22r) - ac->det;
+    }
+    else
+    {
+        pv_memset((void *)ac, 0, sizeof(struct ACORR_COEFS));
+    }
+
+
+}
+
+
+#ifdef HQ_SBR
+
+
+void calc_auto_corr(struct ACORR_COEFS *ac,
+                    Int32  realBuf[][32],
+                    Int32  imagBuf[][32],
+                    Int32  bd,
+                    Int32  len)
+{
+
+
+    Int32 j;
+    Int32 temp1;
+    Int32 temp2;
+    Int32 temp3;
+    Int32 temp4;
+    Int32 temp5;
+    Int32 temp6;
+
+    int64_t accu1 = 0;
+    int64_t accu2 = 0;
+    int64_t accu3 = 0;
+    int64_t accu4 = 0;
+    int64_t accu5 = 0;
+
+
+    int64_t temp_r12r;
+    int64_t temp_r12i;
+    int64_t temp_r22r;
+    int64_t max = 0;
+
+
+    temp1 = realBuf[0  ][bd] >> N;
+    temp2 = imagBuf[0  ][bd] >> N;
+    temp3 = realBuf[0-1][bd] >> N;
+    temp4 = imagBuf[0-1][bd] >> N;
+    temp5 = realBuf[0-2][bd] >> N;
+    temp6 = imagBuf[0-2][bd] >> N;
+
+    temp_r22r =  fxp_mac64_Q31(0, temp5, temp5);
+    temp_r22r =  fxp_mac64_Q31(temp_r22r, temp6, temp6);
+    temp_r12r =  fxp_mac64_Q31(0, temp3, temp5);
+    temp_r12r =  fxp_mac64_Q31(temp_r12r, temp4, temp6);
+    temp_r12i = -fxp_mac64_Q31(0, temp3, temp6);
+    temp_r12i =  fxp_mac64_Q31(temp_r12i, temp4, temp5);
+
+    for (j = 1; j < len; j++)
+    {
+        accu1  = fxp_mac64_Q31(accu1, temp3, temp3);
+        accu1  = fxp_mac64_Q31(accu1, temp4, temp4);
+        accu2  = fxp_mac64_Q31(accu2, temp1, temp3);
+        accu2  = fxp_mac64_Q31(accu2, temp2, temp4);
+        accu3  = fxp_mac64_Q31(accu3, temp2, temp3);
+        accu3  = fxp_mac64_Q31(accu3, -temp1, temp4);
+        accu4  = fxp_mac64_Q31(accu4, temp1, temp5);
+        accu4  = fxp_mac64_Q31(accu4, temp2, temp6);
+        accu5  = fxp_mac64_Q31(accu5, temp2, temp5);
+        accu5  = fxp_mac64_Q31(accu5, -temp1, temp6);
+
+        temp5 = temp3;
+        temp6 = temp4;
+        temp3 = temp1;
+        temp4 = temp2;
+        temp1 = realBuf[j][bd] >> N;
+        temp2 = imagBuf[j][bd] >> N;
+    }
+
+
+    temp_r22r += accu1;
+    temp_r12r += accu2;
+    temp_r12i += accu3;
+
+
+    accu1  = fxp_mac64_Q31(accu1, temp3, temp3);
+    accu1  = fxp_mac64_Q31(accu1, temp4, temp4);
+    accu2  = fxp_mac64_Q31(accu2, temp1, temp3);
+    accu2  = fxp_mac64_Q31(accu2, temp2, temp4);
+    accu3  = fxp_mac64_Q31(accu3, temp2, temp3);
+    accu3  = fxp_mac64_Q31(accu3, -temp1, temp4);
+    accu4  = fxp_mac64_Q31(accu4, temp1, temp5);
+    accu4  = fxp_mac64_Q31(accu4, temp2, temp6);
+    accu5  = fxp_mac64_Q31(accu5, temp2, temp5);
+    accu5  = fxp_mac64_Q31(accu5, -temp1, temp6);
+
+
+    max  |= accu5 ^(accu5 >> 63);
+    max  |= accu4 ^(accu4 >> 63);
+    max  |= accu3 ^(accu3 >> 63);
+    max  |= accu2 ^(accu2 >> 63);
+    max  |= accu1;
+    max  |= temp_r12r ^(temp_r12r >> 63);
+    max  |= temp_r12i ^(temp_r12i >> 63);
+    max  |= temp_r22r;
+
+    if (max)
+    {
+
+        temp1 = (UInt32)(max >> 32);
+        if (temp1)
+        {
+            temp1 = 34 - pv_normalize(temp1);
+            ac->r11r = (Int32)(accu1 >> temp1);
+            ac->r01r = (Int32)(accu2 >> temp1);
+            ac->r01i = (Int32)(accu3 >> temp1);
+            ac->r02r = (Int32)(accu4 >> temp1);
+            ac->r02i = (Int32)(accu5 >> temp1);
+            ac->r12r = (Int32)(temp_r12r >> temp1);
+            ac->r12i = (Int32)(temp_r12i >> temp1);
+            ac->r22r = (Int32)(temp_r22r >> temp1);
+        }
+        else
+        {
+            temp1 = pv_normalize(((UInt32)max) >> 1) - 3;
+
+            if (temp1 > 0)
+            {
+                ac->r11r = (Int32)(accu1 << temp1);
+                ac->r01r = (Int32)(accu2 << temp1);
+                ac->r01i = (Int32)(accu3 << temp1);
+                ac->r02r = (Int32)(accu4 << temp1);
+                ac->r02i = (Int32)(accu5 << temp1);
+                ac->r12r = (Int32)(temp_r12r << temp1);
+                ac->r12i = (Int32)(temp_r12i << temp1);
+                ac->r22r = (Int32)(temp_r22r << temp1);
+            }
+            else
+            {
+                temp1 = -temp1;
+                ac->r11r = (Int32)(accu1 >> temp1);
+                ac->r01r = (Int32)(accu2 >> temp1);
+                ac->r01i = (Int32)(accu3 >> temp1);
+                ac->r02r = (Int32)(accu4 >> temp1);
+                ac->r02i = (Int32)(accu5 >> temp1);
+                ac->r12r = (Int32)(temp_r12r >> temp1);
+                ac->r12i = (Int32)(temp_r12i >> temp1);
+                ac->r22r = (Int32)(temp_r22r >> temp1);
+            }
+
+        }
+
+        /*
+         *  ac->det = ac->r11r*ac->r22r - rel*(ac->r12r*ac->r12r);
+         */
+        /* 1/(1 + 1e-6) == 1 - 1e-6 */
+        /* 2^-20 == 1e-6 */
+
+        ac->det =   fxp_mul32_Q29(ac->r12i, ac->r12i);
+        ac->det =   fxp_mac32_Q29(ac->r12r, ac->r12r, ac->det);
+
+        ac->det -= ac->det >> 20;
+
+        ac->det =  -fxp_msu32_Q29(ac->r11r, ac->r22r, ac->det);
+
+    }
+    else
+    {
+        pv_memset((void *)ac, 0, sizeof(struct ACORR_COEFS));
+    }
+
+}
+
+#endif
+
+
+
+
+
+#endif
+
+

media/libstagefright/codecs/aacdec/calc_auto_corr.h

@@ -0,0 +1,122 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: calc_auto_corr.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+ ----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CALC_AUTO_CORR_H
+#define CALC_AUTO_CORR_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+struct ACORR_COEFS
+{
+    Int32  r11r;
+    Int32  r01r;
+    Int32  r02r;
+    Int32  r12r;
+    Int32  r22r;
+#ifdef HQ_SBR
+    Int32  r01i;
+    Int32  r02i;
+    Int32  r12i;
+#endif
+    Int32  det;
+};
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void calc_auto_corr_LC(struct ACORR_COEFS *ac,
+    Int32  realBuf[][32],
+    Int32  bd,
+    Int32  len);
+
+
+#ifdef HQ_SBR
+
+    void calc_auto_corr(struct ACORR_COEFS *ac,
+                        Int32  realBuf[][32],
+                        Int32  imagBuf[][32],
+                        Int32  bd,
+                        Int32  len);
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/calc_gsfb_table.cpp

@@ -0,0 +1,267 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/calc_gsfb_table.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from original shareware code
+
+ Description: (1) Modified to bring in-line with PV standards
+              (2) Removed if(pFrameInfo->islong), only short windows will
+                  call this routine from getics.c
+
+ Description: Modified per review comments
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pFrameInfo  = pointer to structure that holds information for current
+                  frame. Data type FrameInfo
+
+    group[]     = array that contains the grouping information of short
+                  windows (stop index of windows in each group).
+                  Data type Int
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    pFrameInfo -> frame_sfb_top   contains the cumulative bandwidth of
+                                    scalefactor bands in each group
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is only invoked when short windows are present. It calculates
+ the number of groups in one frame, and the scalefactor bandwidth of each
+ scalefactor band in each group.
+ All windows within one group share the same scalefactors and are interleaved
+ on a scalefactor band basis. Within each group, the actual length of one
+ scalefactor band equals to the number of windows times the number of
+ coefficients in a regular scalefactor band.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function shall replace the contents of pFrameInfo->frame_sfb_top
+ with the cumulative bandwidth of each scalefactor band in each group
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+ (2) ISO/IEC 14496-3: 1999(E)
+    Subpart 4       p54.    4.5.2.3.2   decoding process
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    offset      = 0;
+    group_idx   = 0;
+
+    DO
+        pFrameInfo->group_len[group_idx] = group[group_idx] - offset;
+        offset = group[group_idx];
+        group_idx++;
+
+    WHILE (offset < NUM_SHORT_WINDOWS);
+
+
+    pFrameInfo->num_groups = group_idx;
+
+    pFrameSfbTop = pFrameInfo->frame_sfb_top;
+    offset = 0;
+
+    FOR (group_idx = 0; group_idx < pFrameInfo->num_groups; group_idx++)
+
+        len = pFrameInfo->group_len[group_idx];
+
+        FOR (sfb = 0; sfb < pFrameInfo->sfb_per_win[group_idx]; sfb++)
+
+            offset += pFrameInfo->sfb_width_128[sfb] * len;
+            *pFrameSfbTop++ = offset;
+
+        ENDFOR
+
+    ENDFOR
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "huffman.h"
+#include    "aac_mem_funcs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void  calc_gsfb_table(
+    FrameInfo   *pFrameInfo,
+    Int         group[])
+{
+
+    Int      group_idx;
+    Int      offset;
+    Int     *pFrameSfbTop;
+    Int     *pSfbWidth128;
+    Int      sfb;
+    Int      nsfb;
+    Int      len;
+    Int      ngroups;
+
+    /* clear out the default values set by infoinit */
+    /* */
+    pv_memset(pFrameInfo->frame_sfb_top,
+              0,
+              MAXBANDS*sizeof(pFrameInfo->frame_sfb_top[0]));
+    /* */
+    /* first calculate the group length*/
+    offset      = 0;
+    ngroups     = 0;
+    do
+    {
+        pFrameInfo->group_len[ngroups] = group[ngroups] - offset;
+        offset = group[ngroups];
+        ngroups++;
+
+    }
+    while (offset < NUM_SHORT_WINDOWS);
+
+
+    /* calculate the cumulative scalefactor bandwidth for one frame */
+    pFrameInfo->num_groups = ngroups;
+
+    pFrameSfbTop = pFrameInfo->frame_sfb_top;
+    offset = 0;
+
+
+    for (group_idx = 0; group_idx < ngroups; group_idx++)
+    {
+        len  = pFrameInfo->group_len[  group_idx];
+        nsfb = pFrameInfo->sfb_per_win[group_idx];
+
+        pSfbWidth128 = pFrameInfo->sfb_width_128;
+
+        for (sfb = nsfb; sfb > 0; sfb--)
+        {
+            offset += *pSfbWidth128++ * len;
+            *pFrameSfbTop++ = offset;
+        }
+    }
+
+
+} /* calc_gsfb_table */
+

media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.cpp

@@ -0,0 +1,360 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: calc_sbr_anafilterbank.c
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include    "calc_sbr_anafilterbank.h"
+#include    "qmf_filterbank_coeff.h"
+#include    "analysis_sub_band.h"
+
+#include    "aac_mem_funcs.h"
+#include    "fxp_mul32.h"
+
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void calc_sbr_anafilterbank_LC(Int32 * Sr,
+                               Int16 * X,
+                               Int32 scratch_mem[][64],
+                               Int32 maxBand)
+{
+
+    Int i;
+    Int32   *p_Y_1;
+    Int32   *p_Y_2;
+
+    Int16 * pt_X_1;
+    Int16 * pt_X_2;
+    Int32 realAccu1;
+    Int32 realAccu2;
+
+    Int32 tmp1;
+    Int32 tmp2;
+
+
+    const Int32 * pt_C;
+
+    p_Y_1 = scratch_mem[0];
+
+
+    p_Y_2 = p_Y_1 + 63;
+    pt_C   = &sbrDecoderFilterbankCoefficients_an_filt_LC[0];
+
+    pt_X_1 = X;
+
+
+    realAccu1  =  fxp_mul32_by_16(Qfmt27(-0.51075594183097F),   pt_X_1[-192]);
+
+    realAccu1  =  fxp_mac32_by_16(Qfmt27(-0.51075594183097F), -pt_X_1[-128], realAccu1);
+    realAccu1  =  fxp_mac32_by_16(Qfmt27(-0.01876919066980F),  pt_X_1[-256], realAccu1);
+    *(p_Y_1++) =  fxp_mac32_by_16(Qfmt27(-0.01876919066980F), -pt_X_1[ -64], realAccu1);
+
+
+    /* create array Y */
+
+    pt_X_1 = &X[-1];
+    pt_X_2 = &X[-319];
+
+
+    for (i = 15; i != 0; i--)
+    {
+        tmp1 = *(pt_X_1--);
+        tmp2 = *(pt_X_2++);
+
+        realAccu1  = fxp_mul32_by_16(*(pt_C), tmp1);
+        realAccu2  = fxp_mul32_by_16(*(pt_C++), tmp2);
+        tmp1 = pt_X_1[ -63];
+        tmp2 = pt_X_2[ +63];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -127];
+        tmp2 = pt_X_2[ +127];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -191];
+        tmp2 = pt_X_2[ +191];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -255];
+        tmp2 = pt_X_2[ +255];
+        *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+
+        tmp1 = *(pt_X_1--);
+        tmp2 = *(pt_X_2++);
+        realAccu1  = fxp_mul32_by_16(*(pt_C), tmp1);
+        realAccu2  = fxp_mul32_by_16(*(pt_C++), tmp2);
+
+        tmp1 = pt_X_1[ -63];
+        tmp2 = pt_X_2[ +63];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -127];
+        tmp2 = pt_X_2[ +127];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -191];
+        tmp2 = pt_X_2[ +191];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -255];
+        tmp2 = pt_X_2[ +255];
+        *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+
+    }
+
+
+    tmp1 = *(pt_X_1--);
+    tmp2 = *(pt_X_2++);
+    realAccu1  = fxp_mul32_by_16(*(pt_C), tmp1);
+    realAccu2  = fxp_mul32_by_16(*(pt_C++), tmp2);
+
+    tmp1 = pt_X_1[ -63];
+    tmp2 = pt_X_2[ +63];
+    realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+    realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+    tmp1 = pt_X_1[ -127];
+    tmp2 = pt_X_2[ +127];
+    realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+    realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+    tmp1 = pt_X_1[ -191];
+    tmp2 = pt_X_2[ +191];
+    realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+    realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+    tmp1 = pt_X_1[ -255];
+    tmp2 = pt_X_2[ +255];
+    *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+    *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+
+
+    pt_X_1 = X;
+
+    realAccu2  = fxp_mul32_by_16(Qfmt27(0.00370548843500F), X[ -32]);
+
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.00370548843500F), pt_X_1[-288], realAccu2);
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.09949460091720F), pt_X_1[ -96], realAccu2);
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.09949460091720F), pt_X_1[-224], realAccu2);
+    *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(1.20736865027288F), pt_X_1[-160], realAccu2);
+
+
+    analysis_sub_band_LC(scratch_mem[0],
+                         Sr,
+                         maxBand,
+                         (Int32(*)[64])scratch_mem[1]);
+
+}
+
+
+
+#ifdef HQ_SBR
+
+void calc_sbr_anafilterbank(Int32 * Sr,
+                            Int32 * Si,
+                            Int16 * X,
+                            Int32 scratch_mem[][64],
+                            Int32   maxBand)
+{
+    Int i;
+    Int32   *p_Y_1;
+    Int32   *p_Y_2;
+
+
+
+
+    const Int32 * pt_C;
+    Int16 * pt_X_1;
+    Int16 * pt_X_2;
+    Int32 realAccu1;
+    Int32 realAccu2;
+
+    Int32 tmp1;
+    Int32 tmp2;
+
+
+    p_Y_1 = scratch_mem[0];
+
+
+    p_Y_2 = p_Y_1 + 63;
+    pt_C   = &sbrDecoderFilterbankCoefficients_an_filt[0];
+
+    realAccu1  =  fxp_mul32_by_16(Qfmt27(-0.36115899F),   X[-192]);
+
+
+    realAccu1  =  fxp_mac32_by_16(Qfmt27(-0.36115899F),  -X[-128], realAccu1);
+    realAccu1  =  fxp_mac32_by_16(Qfmt27(-0.013271822F),  X[-256], realAccu1);
+    *(p_Y_1++) =  fxp_mac32_by_16(Qfmt27(-0.013271822F), -X[ -64], realAccu1);
+
+    /* create array Y */
+
+    pt_X_1 = &X[-1];
+    pt_X_2 = &X[-319];
+
+
+    for (i = 31; i != 0; i--)
+    {
+        tmp1 = *(pt_X_1--);
+        tmp2 = *(pt_X_2++);
+        realAccu1  = fxp_mul32_by_16(*(pt_C), tmp1);
+        realAccu2  = fxp_mul32_by_16(*(pt_C++), tmp2);
+        tmp1 = pt_X_1[ -63];
+        tmp2 = pt_X_2[  63];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -127];
+        tmp2 = pt_X_2[  127];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -191];
+        tmp2 = pt_X_2[  191];
+        realAccu1  = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        realAccu2  = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+        tmp1 = pt_X_1[ -255];
+        tmp2 = pt_X_2[  255];
+        *(p_Y_1++) = fxp_mac32_by_16(*(pt_C), tmp1, realAccu1);
+        *(p_Y_2--) = fxp_mac32_by_16(*(pt_C++), tmp2, realAccu2);
+    }
+
+
+    realAccu2  = fxp_mul32_by_16(Qfmt27(0.002620176F), X[ -32]);
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.002620176F), X[-288], realAccu2);
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.070353307F), X[ -96], realAccu2);
+    realAccu2  = fxp_mac32_by_16(Qfmt27(0.070353307F), X[-224], realAccu2);
+
+
+    *(p_Y_1++) = fxp_mac32_by_16(Qfmt27(0.85373856F), (X[-160]), realAccu2);
+
+
+    analysis_sub_band(scratch_mem[0],
+                      Sr,
+                      Si,
+                      maxBand,
+                      (Int32(*)[64])scratch_mem[1]);
+
+}
+
+
+#endif
+
+
+
+#endif   /*  AAC_PLUS */
+

media/libstagefright/codecs/aacdec/calc_sbr_anafilterbank.h

@@ -0,0 +1,113 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: calc_sbr_anafilterbank.h
+ Funtions:
+    get_dse
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CALC_SBR_ANAFILTERBANK_H
+#define CALC_SBR_ANAFILTERBANK_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+#define ROUND_ANAFIL     0
+//#define ROUND_ANAFIL     0
+#define ROUND_ANAFIL_LC  (0)
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+
+    void calc_sbr_anafilterbank_LC(Int32 * Sr,
+    Int16 * X,
+    Int32 scratch_mem[][64],
+    Int32 maxBand);
+
+
+#ifdef HQ_SBR
+
+    void calc_sbr_anafilterbank(Int32 * Sr,
+                                Int32 * Si,
+                                Int16 * X,
+                                Int32 scratch_mem[][64],
+                                Int32 maxBand);
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /*  CALC_SBR_ANAFILTERBANK_H */

media/libstagefright/codecs/aacdec/calc_sbr_envelope.h

@@ -0,0 +1,144 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: calc_sbr_envelope.h
+ Funtions:
+    get_dse
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+ $Id: ct_envcalc.h,v 1.3 2002/11/29 16:11:49 kaehleof Exp $
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CALCULATE_SBR_ENVELOPE_H
+#define CALCULATE_SBR_ENVELOPE_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "s_sbr_frame_data.h"
+#include    "sbr_generate_high_freq.h"
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+    void calc_sbr_envelope(SBR_FRAME_DATA *frameData,
+    Int32 *aBufR,
+    Int32 *aBufI,
+    Int    freqBandTable1[2][MAX_FREQ_COEFFS + 1],
+    const Int32 *nSfb,
+    Int32   freqBandTable2[MAX_NOISE_COEFFS + 1],
+    Int32   nNBands,
+    Int32   reset,
+    Int32 *degreeAlias,
+    Int32 *harm_index,
+    Int32 *phase_index,
+    Int32 hFp[64],
+    Int32 *sUp,
+    Int32 limSbc[][13],
+    Int32 *gateMode,
+#ifdef HQ_SBR
+    Int32 *fBuf_man[64],
+    Int32 *fBuf_exp[64],
+    Int32 *fBufN_man[64],
+    Int32 *fBufN_exp[64],
+#endif
+    Int32 scratch_mem[][64],
+    struct PATCH Patch,
+    Int32  sqrt_cache[][4],
+    Int32  LC_flag);
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif   /*  CALCULATE_SBR_ENVELOPE_H */
+
+

media/libstagefright/codecs/aacdec/calc_sbr_synfilterbank.cpp

@@ -0,0 +1,639 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+  Filename: calc_sbr_synfilterbank.c
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+#ifdef AAC_PLUS
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "calc_sbr_synfilterbank.h"
+#include    "qmf_filterbank_coeff.h"
+#include    "synthesis_sub_band.h"
+#include    "fxp_mul32.h"
+#include    "aac_mem_funcs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+#if defined (PV_ARM_V5)
+
+
+__inline Int16 sat(Int32 y)
+{
+    Int32 x;
+    __asm
+    {
+        qdadd y, y, y
+        mov y, y, asr #16
+    }
+
+    return((Int16)y);
+}
+
+#define saturate2( a, b, c, d)      *c = sat( a);   \
+                                    *d = sat( b);   \
+                                    c += 2;         \
+                                    d -= 2;
+
+
+#elif defined (PV_ARM_V4)
+
+
+__inline Int16 sat(Int32 y)
+{
+    Int32 x;
+    Int32 z = 31; /* rvct compiler problem */
+    __asm
+    {
+        sub y, y, y, asr 2
+        mov y, y, asr N
+        mov x, y, asr #15
+        teq x, y, asr z
+        eorne  y, INT16_MAX, y, asr #31
+    }
+
+    return((Int16)y);
+}
+
+#define saturate2( a, b, c, d)      *c = sat( a);   \
+                                    *d = sat( b);   \
+                                    c += 2;         \
+                                    d -= 2;
+
+#elif defined(PV_ARM_GCC_V5)
+
+__inline Int16 sat(Int32 y)
+{
+    register Int32 x;
+    register Int32 ra = y;
+
+
+    asm volatile(
+        "qdadd %0, %1, %1\n\t"
+        "mov %0, %0, asr #16"
+    : "=&r*i"(x)
+                : "r"(ra));
+
+    return ((Int16)x);
+}
+
+
+#define saturate2( a, b, c, d)      *c = sat( a);   \
+                                    *d = sat( b);   \
+                                    c += 2;         \
+                                    d -= 2;
+
+
+#elif defined(PV_ARM_MSC_EVC_V5)
+
+#include "armintr.h"
+
+#define saturate2( a, b, c, d)      *c = _DAddSatInt( a, a)>>16;   \
+                                    *d = _DAddSatInt( b, b)>>16;   \
+                                    c += 2;         \
+                                    d -= 2;
+
+#else
+
+
+#define   saturate2( a, b, c, d)    a -= (a>>2);                             \
+                                    a  = (a>>N);                     \
+                                    if((a>>15) != (a>>31))                   \
+                                    {                                        \
+                                        a = ((a >> 31) ^ INT16_MAX); \
+                                    }                                        \
+                                    *c = (Int16)a;                           \
+                                    c += 2;                                  \
+                                    b -= (b>>2);                             \
+                                    b =  (b>>N);                      \
+                                    if((b>>15) != (b>>31))                   \
+                                    {                                        \
+                                        b = ((b >> 31) ^ INT16_MAX); \
+                                    }                                        \
+                                    *d = (Int16)b;                           \
+                                    d -= 2;
+
+
+#endif
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void calc_sbr_synfilterbank_LC(Int32 * Sr,
+                               Int16 * timeSig,
+                               Int16   V[1280],
+                               bool bDownSampleSBR)
+{
+    Int32 i;
+
+    Int32   realAccu1;
+    Int32   realAccu2;
+    const Int32 *pt_C2;
+
+    Int16 *pt_V1;
+    Int16 *pt_V2;
+
+
+    Int16 *pt_timeSig;
+
+    Int16 *pt_timeSig_2;
+    Int32  test1;
+    Int16  tmp1;
+    Int16  tmp2;
+
+    /* shift filterstates */
+
+    Int32 * pt_Sr = Sr;
+
+
+    if (bDownSampleSBR == false)
+    {
+
+        synthesis_sub_band_LC(pt_Sr, V);
+
+        /* content of V[] is at most 16 bits */
+
+        pt_timeSig   = &timeSig[0];
+        pt_timeSig_2 = &timeSig[64];
+
+
+        tmp1 = V[ 704];
+        tmp2 = V[ 768];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(0.853738560F), ROUND_SYNFIL);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.361158990F), realAccu1);
+        tmp1 = -V[ 512];
+        tmp2 =  V[ 960];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.361158990F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(0.070353307F), realAccu1);
+        tmp1 =  V[ 448];
+        tmp2 =  V[1024];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(0.070353307F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.013271822F), realAccu1);
+        tmp1 =  -V[ 256];
+        tmp2 =   V[ 192];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.013271822F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(0.002620176F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(V[1216], Qfmt(0.002620176F), realAccu1);
+
+        tmp1 = V[  32];
+        tmp2 = V[1248];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.000665042F), ROUND_SYNFIL);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.000665042F), realAccu2);
+        tmp1 = V[ 224];
+        tmp2 = V[1056];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.005271576F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.005271576F), realAccu2);
+        tmp1 = V[ 992];
+        tmp2 = V[ 288];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.058591568F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.058591568F), realAccu2);
+        tmp1 = V[ 480];
+        tmp2 = V[ 800];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.058370533F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.058370533F), realAccu2);
+        tmp1 = V[ 736];
+        tmp2 = V[ 544];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.702238872F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.702238872F), realAccu2);
+
+
+
+        saturate2(realAccu1, realAccu2, pt_timeSig, pt_timeSig_2);
+
+        pt_timeSig_2 = &timeSig[126];
+
+        pt_V1 = &V[1];
+        pt_V2 = &V[1279];
+
+        pt_C2 = &sbrDecoderFilterbankCoefficients[0];
+
+        for (i = 31; i != 0; i--)
+        {
+            test1 = *(pt_C2++);
+            tmp1 = *(pt_V1++);
+            tmp2 = *(pt_V2--);
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, ROUND_SYNFIL);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, ROUND_SYNFIL);
+            tmp1 = pt_V1[  191];
+            tmp2 = pt_V2[ -191];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  255];
+            tmp2 = pt_V2[ -255];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  447];
+            tmp2 = pt_V2[ -447];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  511];
+            tmp2 = pt_V2[ -511];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  703];
+            tmp2 = pt_V2[ -703];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  767];
+            tmp2 = pt_V2[ -767];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  959];
+            tmp2 = pt_V2[ -959];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  1023];
+            tmp2 = pt_V2[ -1023];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  1215];
+            tmp2 = pt_V2[ -1215];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            saturate2(realAccu1, realAccu2, pt_timeSig, pt_timeSig_2);
+
+        }
+    }
+    else
+    {
+
+        synthesis_sub_band_LC_down_sampled(Sr, V);
+
+        /*
+         *    window signal
+         *    calculate output samples
+         */
+
+
+        pt_V1 = &V[0];
+        pt_V2 = &V[96];
+
+
+        Int32 * pt_out = Sr;
+
+        for (i = 0; i < 8; i++)
+        {
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+        }
+
+        const Int32* pt_C1 = &sbrDecoderFilterbankCoefficients_down_smpl[0];
+        pt_C2 = &sbrDecoderFilterbankCoefficients_down_smpl[16];
+
+        for (int k = 0; k < 5; k++)
+        {
+            pt_out -= 32;
+            for (i = 0; i < 16; i++)
+            {
+                realAccu1   = fxp_mul_16_by_16bt(*(pt_V1++), *(pt_C1));
+                realAccu2   = fxp_mul_16_by_16bb(*(pt_V1++), *(pt_C1++));
+                realAccu1   = fxp_mac_16_by_16_bt(*(pt_V2++), *(pt_C2), realAccu1);
+                realAccu2   = fxp_mac_16_by_16_bb(*(pt_V2++), *(pt_C2++), realAccu2);
+                *(pt_out++) += realAccu1 >> 5;
+                *(pt_out++) += realAccu2 >> 5;
+
+            }
+            pt_V1 += 96;
+            pt_V2 += 96;
+            pt_C1 += 16;
+            pt_C2 += 16;
+        }
+        pt_out -= 32;
+
+        for (i = 0; i < 32; i++)
+        {
+            timeSig[2*i] = (Int16)((*(pt_out++) + 512) >> 10);
+        }
+
+    }
+
+}
+
+
+
+#ifdef HQ_SBR
+
+void calc_sbr_synfilterbank(Int32 * Sr,
+                            Int32 * Si,
+                            Int16 * timeSig,
+                            Int16   V[1280],
+                            bool bDownSampleSBR)
+{
+    Int32 i;
+
+    const Int32 *pt_C2;
+
+    Int32   realAccu1;
+    Int32   realAccu2;
+
+    Int16 *pt_V1;
+    Int16 *pt_V2;
+
+    Int16 *pt_timeSig;
+
+    Int16 *pt_timeSig_2;
+    Int32  test1;
+    Int16  tmp1;
+    Int16  tmp2;
+
+
+    if (bDownSampleSBR == false)
+    {
+        synthesis_sub_band(Sr, Si, V);
+
+        /* content of V[] is at most 16 bits */
+        pt_timeSig   = &timeSig[0];
+        pt_timeSig_2 = &timeSig[64];
+
+        tmp1 = V[ 704];
+        tmp2 = V[ 768];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(0.853738560F), ROUND_SYNFIL);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.361158990F), realAccu1);
+        tmp1 = -V[ 512];
+        tmp2 =  V[ 960];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.361158990F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(0.070353307F), realAccu1);
+        tmp1 =  V[ 448];
+        tmp2 =  V[1024];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(0.070353307F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.013271822F), realAccu1);
+        tmp1 =  -V[ 256];
+        tmp2 =   V[ 192];
+        realAccu1 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.013271822F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(tmp2, Qfmt(0.002620176F), realAccu1);
+        realAccu1 =  fxp_mac_16_by_16(V[1216], Qfmt(0.002620176F), realAccu1);
+
+        tmp1 = V[  32];
+        tmp2 = V[1248];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.000665042F), ROUND_SYNFIL);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.000665042F), realAccu2);
+        tmp1 = V[ 224];
+        tmp2 = V[1056];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.005271576F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.005271576F), realAccu2);
+        tmp1 = V[ 992];
+        tmp2 = V[ 288];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.058591568F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.058591568F), realAccu2);
+        tmp1 = V[ 480];
+        tmp2 = V[ 800];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(-0.058370533F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(-0.058370533F), realAccu2);
+        tmp1 = V[ 736];
+        tmp2 = V[ 544];
+        realAccu2 =  fxp_mac_16_by_16(tmp1, Qfmt(0.702238872F), realAccu2);
+        realAccu2 =  fxp_mac_16_by_16(tmp2, Qfmt(0.702238872F), realAccu2);
+
+
+        saturate2(realAccu1, realAccu2, pt_timeSig, pt_timeSig_2);
+
+        pt_timeSig_2 = &timeSig[126];
+
+        pt_V1 = &V[1];
+        pt_V2 = &V[1279];
+
+        pt_C2 = &sbrDecoderFilterbankCoefficients[0];
+
+        for (i = 31; i != 0; i--)
+        {
+            test1 = *(pt_C2++);
+            tmp1 = *(pt_V1++);
+            tmp2 = *(pt_V2--);
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, ROUND_SYNFIL);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, ROUND_SYNFIL);
+            tmp1 = pt_V1[  191];
+            tmp2 = pt_V2[ -191];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  255];
+            tmp2 = pt_V2[ -255];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  447];
+            tmp2 = pt_V2[ -447];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  511];
+            tmp2 = pt_V2[ -511];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  703];
+            tmp2 = pt_V2[ -703];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  767];
+            tmp2 = pt_V2[ -767];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  959];
+            tmp2 = pt_V2[ -959];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            test1 = *(pt_C2++);
+            tmp1 = pt_V1[  1023];
+            tmp2 = pt_V2[ -1023];
+            realAccu1 =  fxp_mac_16_by_16_bt(tmp1 , test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bt(tmp2 , test1, realAccu2);
+            tmp1 = pt_V1[  1215];
+            tmp2 = pt_V2[ -1215];
+            realAccu1 =  fxp_mac_16_by_16_bb(tmp1, test1, realAccu1);
+            realAccu2 =  fxp_mac_16_by_16_bb(tmp2, test1, realAccu2);
+
+            saturate2(realAccu1, realAccu2, pt_timeSig, pt_timeSig_2);
+        }
+
+    }
+    else
+    {
+
+        synthesis_sub_band_down_sampled(Sr,  Si,  V);
+
+
+        Int32 * pt_out = Sr;
+
+        for (i = 0; i < 8; i++)
+        {
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+            *(pt_out++) = 0;
+        }
+
+
+        /*
+         *    window signal
+         *    calculate output samples
+         */
+
+        pt_V1 = &V[0];
+        pt_V2 = &V[96];
+
+
+        const Int32* pt_C1 = &sbrDecoderFilterbankCoefficients_down_smpl[0];
+        pt_C2 = &sbrDecoderFilterbankCoefficients_down_smpl[16];
+
+        for (Int k = 0; k < 5; k++)
+        {
+            pt_out -= 32;
+            for (i = 0; i < 16; i++)
+            {
+                realAccu1   = fxp_mul_16_by_16bt(*(pt_V1++), *(pt_C1));
+                realAccu2   = fxp_mul_16_by_16bb(*(pt_V1++), *(pt_C1++));
+                realAccu1   = fxp_mac_16_by_16_bt(*(pt_V2++), *(pt_C2), realAccu1);
+                realAccu2   = fxp_mac_16_by_16_bb(*(pt_V2++), *(pt_C2++), realAccu2);
+                *(pt_out++) += realAccu1 >> 5;
+                *(pt_out++) += realAccu2 >> 5;
+            }
+            pt_V1 += 96;
+            pt_V2 += 96;
+            pt_C1 += 16;
+            pt_C2 += 16;
+        }
+        pt_out -= 32;
+
+        for (i = 0; i < 32; i++)
+        {
+            timeSig[2*i] = (Int16)((*(pt_out++) + 512) >> 10);
+        }
+
+    }
+}
+
+
+#endif      /* --- HQ_SBR --- */
+
+
+#endif      /* --- AAC_PLUS --- */
+
+
+

media/libstagefright/codecs/aacdec/calc_sbr_synfilterbank.h

@@ -0,0 +1,94 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CALC_SBR_SYNFILTERBANK_H
+#define CALC_SBR_SYNFILTERBANK_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+#define N  14
+
+#define ROUND_SYNFIL  (32768 + 4096)
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+
+    void calc_sbr_synfilterbank_LC(Int32 * Sr,
+    Int16 * timeSig,
+    Int16   V[1280],
+    bool bDownSampleSBR);
+
+#ifdef HQ_SBR
+
+
+    void calc_sbr_synfilterbank(Int32 * Sr,
+                                Int32 * Si,
+                                Int16 * timeSig,
+                                Int16   V[1280],
+                                bool bDownSampleSBR);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+

media/libstagefright/codecs/aacdec/chans.h

@@ -0,0 +1,107 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname:   chans.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Placed file in the correct template format.
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CHANS_H
+#define CHANS_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; INCLUDES
+    ----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+    /* #define is required in order to use these args in #if () directive */
+#define ICChans 0
+#define DCChans 0
+#define XCChans 0
+#define CChans  0
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+    enum
+    {
+        /*
+         * channels for 5.1 main profile configuration
+         * (modify for any desired decoder configuration)
+         */
+        FChans  = 2,    /* front channels: left, center, right */
+        FCenter = 0,    /* 1 if decoder has front center channel */
+        SChans  = 0,    /* side channels: */
+        BChans  = 0,    /* back channels: left surround, right surround */
+        BCenter = 0,    /* 1 if decoder has back center channel */
+        LChans  = 0,    /* LFE channels */
+        XChans  = 0,    /* scratch space for parsing unused channels */
+
+        Chans   = FChans + SChans + BChans + LChans + XChans
+    };
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CHANS_H */
+

media/libstagefright/codecs/aacdec/check_crc.cpp

@@ -0,0 +1,144 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: check_crc.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    INPUT
+
+
+    OUTPUT
+
+    errorCode, noError if successful
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "check_crc.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void check_crc(HANDLE_CRC hCrcBuf, UInt32 bValue, Int32 nBits)
+{
+    Int32 i;
+    UInt32 bMask = (1UL << (nBits - 1));
+
+    for (i = 0; i < nBits; i++, bMask >>= 1)
+    {
+        UInt16 flag  = (UInt16)((hCrcBuf->crcState & hCrcBuf->crcMask) ? 1 : 0);
+        UInt16 flag1 = (UInt16)((bMask & bValue) ? 1 : 0);
+
+        flag ^= flag1;
+        hCrcBuf->crcState <<= 1;
+        if (flag)
+            hCrcBuf->crcState ^= hCrcBuf->crcPoly;
+    }
+
+}
+

media/libstagefright/codecs/aacdec/check_crc.h

@@ -0,0 +1,124 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Filename: check_crc.h
+ Funtions:
+    get_dse
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+ $Id: ct_envcalc.h,v 1.3 2002/11/29 16:11:49 kaehleof Exp $
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef CHECK_CRC_H
+#define CHECK_CRC_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_crc_buffer.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+    void check_crc(HANDLE_CRC hCrcBuf,
+    UInt32 bValue,
+    Int32 nBits);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/dct16.cpp

@@ -0,0 +1,266 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Filename: dct16.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 x             32-bit integer input length 16
+
+    Int32 flag           1  forward dct16, 0 modified dct-16
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement dct of lenght 16
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+#include "dct16.h"
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define Qfmt_31(a)   (Int32)(a*0x7FFFFFFF + (a>=0?0.5F:-0.5F))
+
+#define Qfmt15(x)   (Int16)(x*((Int32)1<<15) + (x>=0?0.5F:-0.5F))
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void dct_16(Int32 vec[], Int flag)
+{
+    Int32 tmp0;
+    Int32 tmp1;
+    Int32 tmp2;
+    Int32 tmp3;
+    Int32 tmp4;
+    Int32 tmp5;
+    Int32 tmp6;
+    Int32 tmp7;
+    Int32 tmp_o0;
+    Int32 tmp_o1;
+    Int32 tmp_o2;
+    Int32 tmp_o3;
+    Int32 tmp_o4;
+    Int32 tmp_o5;
+    Int32 tmp_o6;
+    Int32 tmp_o7;
+    Int32 itmp_e0;
+    Int32 itmp_e1;
+    Int32 itmp_e2;
+
+    /*  split input vector */
+
+
+    tmp_o0 = fxp_mul32_by_16((vec[ 0] - vec[15]), Qfmt15(0.50241928618816F));
+    tmp0   =  vec[ 0] + vec[15];
+
+    tmp_o7 = fxp_mul32_Q31((vec[ 7] - vec[ 8]) << 3, Qfmt_31(0.63764357733614F));
+    tmp7   =  vec[ 7] + vec[ 8];
+
+    itmp_e0 = (tmp0 + tmp7);
+    tmp7    = fxp_mul32_by_16((tmp0 - tmp7), Qfmt15(0.50979557910416F));
+
+    tmp_o1 = fxp_mul32_by_16((vec[ 1] - vec[14]), Qfmt15(0.52249861493969F));
+    tmp1   =  vec[ 1] + vec[14];
+    tmp_o6 = fxp_mul32_by_16((vec[ 6] - vec[ 9]) << 1, Qfmt15(0.86122354911916F));
+    tmp6   =  vec[ 6] + vec[ 9];
+
+    itmp_e1 = (tmp1 + tmp6);
+    tmp6    = fxp_mul32_by_16((tmp1 - tmp6), Qfmt15(0.60134488693505F));
+
+    tmp_o2 = fxp_mul32_by_16((vec[ 2] - vec[13]), Qfmt15(0.56694403481636F));
+    tmp2   =  vec[ 2] + vec[13];
+    tmp_o5 = fxp_mul32_by_16((vec[ 5] - vec[10]) << 1, Qfmt15(0.53033884299517F));
+    tmp5   =  vec[ 5] + vec[10];
+
+    itmp_e2 = (tmp2 + tmp5);
+    tmp5    = fxp_mul32_by_16((tmp2 - tmp5), Qfmt15(0.89997622313642F));
+
+    tmp_o3 = fxp_mul32_by_16((vec[ 3] - vec[12]), Qfmt15(0.64682178335999F));
+    tmp3   =  vec[ 3] + vec[12];
+    tmp_o4 = fxp_mul32_by_16((vec[ 4] - vec[11]), Qfmt15(0.78815462345125F));
+    tmp4   =  vec[ 4] + vec[11];
+
+    tmp1   = (tmp3 + tmp4);
+    tmp4   =  fxp_mul32_Q31((tmp3 - tmp4) << 2, Qfmt_31(0.64072886193538F));
+
+    /*  split even part of tmp_e */
+
+    tmp0 = (itmp_e0 + tmp1);
+    tmp1 = fxp_mul32_by_16((itmp_e0 - tmp1), Qfmt15(0.54119610014620F));
+
+
+    tmp3 = fxp_mul32_by_16((itmp_e1 - itmp_e2) << 1, Qfmt15(0.65328148243819F));
+    tmp2 = (itmp_e1 + itmp_e2);
+
+    vec[ 0]  = (tmp0 + tmp2) >> 1;
+    vec[ 8]  = fxp_mul32_by_16((tmp0 - tmp2), Qfmt15(0.70710678118655F));
+    vec[12]  = fxp_mul32_by_16((tmp1 - tmp3) << 1, Qfmt15(0.70710678118655F));
+    vec[ 4]  =  tmp1 + tmp3;
+    vec[ 4] +=  vec[12];
+
+    /*  split odd part of tmp_e */
+
+    tmp1 = fxp_mul32_by_16((tmp7 - tmp4) << 1, Qfmt15(0.54119610014620F));
+    tmp7 += tmp4;
+    tmp3 = fxp_mul32_Q31((tmp6 - tmp5) << 2, Qfmt_31(0.65328148243819F));
+
+    tmp6 += tmp5;
+
+    vec[10]  = fxp_mul32_by_16((tmp7 - tmp6) << 1, Qfmt15(0.70710678118655F));
+    vec[ 2]  =  tmp7 + tmp6;
+    vec[14]  = fxp_mul32_by_16((tmp1 - tmp3) << 1, Qfmt15(0.70710678118655F));
+
+    tmp1    +=  tmp3 + vec[14];
+    vec[ 2] +=  tmp1;
+    vec[ 6]  =  tmp1 + vec[10];
+
+    vec[10] += vec[14];
+
+
+    // dct8;
+
+    tmp7 = tmp_o0 + tmp_o7;
+    tmp_o7 = fxp_mul32_by_16((tmp_o0 - tmp_o7) << 1, Qfmt15(0.50979557910416F));
+
+    tmp6 = tmp_o1 + tmp_o6;
+    tmp_o1 = fxp_mul32_by_16((tmp_o1 - tmp_o6) << 1, Qfmt15(0.60134488693505F));
+
+    tmp5 = tmp_o2 + tmp_o5;
+    tmp_o5 = fxp_mul32_by_16((tmp_o2 - tmp_o5) << 1, Qfmt15(0.89997622313642F));
+
+    tmp4 = tmp_o3 + tmp_o4;
+
+    tmp_o3 = fxp_mul32_Q31((tmp_o3 - tmp_o4) << 3, Qfmt_31(0.6407288619354F));
+
+    if (!flag)
+    {
+        tmp7   = -tmp7;
+        tmp_o7 = -tmp_o7;
+        tmp6   = -tmp6;
+        tmp_o1 = -tmp_o1;
+        tmp5   = -tmp5;
+        tmp_o5 = -tmp_o5;
+        tmp4   = -tmp4;
+        tmp_o3 = -tmp_o3;
+    }
+
+    // even part
+
+    tmp1 = fxp_mul32_by_16((tmp7 - tmp4) << 1, Qfmt15(0.54119610014620F));
+    tmp0 =  tmp7 + tmp4;
+    tmp3 = fxp_mul32_Q31((tmp6 - tmp5) << 2, Qfmt_31(0.65328148243819F));
+    tmp2 =  tmp6 + tmp5;
+
+    vec[ 9]  = fxp_mul32_Q31((tmp0 - tmp2) << 1, Qfmt_31(0.70710678118655F));
+    vec[ 1]  =  tmp0 + tmp2;
+    vec[13]  = fxp_mul32_Q31((tmp1 - tmp3) << 1, Qfmt_31(0.70710678118655F));
+
+    vec[ 5]  =  tmp1 + tmp3 + vec[13];
+
+    // odd part
+
+    tmp0 =  tmp_o7 + tmp_o3;
+    tmp1 = fxp_mul32_by_16((tmp_o7 - tmp_o3) << 1, Qfmt15(0.54119610014620F));
+    tmp2 =  tmp_o1 + tmp_o5;
+    tmp3 = fxp_mul32_Q31((tmp_o1 - tmp_o5) << 2, Qfmt_31(0.65328148243819F));
+
+    vec[11]  = fxp_mul32_Q31((tmp0 - tmp2) << 1, Qfmt_31(0.70710678118655F));
+    vec[ 3]  =  tmp0 + tmp2;
+    vec[15]  = fxp_mul32_Q31((tmp1 - tmp3) << 1, Qfmt_31(0.70710678118655F));
+    vec[ 7]  =  tmp1 + tmp3 + vec[15];
+
+
+    vec[ 3] += vec[ 7];
+    vec[ 7] += vec[11];
+    vec[11] += vec[15];
+
+    vec[ 1] += vec[ 3];
+    vec[ 3] += vec[ 5];
+    vec[ 5] += vec[ 7];
+    vec[ 7] += vec[ 9];
+    vec[ 9] += vec[11];
+    vec[11] += vec[13];
+    vec[13] += vec[15];
+
+
+}
+
+
+#endif
+

media/libstagefright/codecs/aacdec/dct16.h

@@ -0,0 +1,68 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/dct16.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef DCT16_H
+#define DCT16_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    void dct_16(Int32 vec[], Int flag);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* DCT16_H */

media/libstagefright/codecs/aacdec/dct64.cpp

@@ -0,0 +1,569 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: dct64.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 x             32-bit integer input length 64
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement dct of lenght 64
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include "dct16.h"
+#include "dct64.h"
+
+#include "pv_audio_type_defs.h"
+#include "synthesis_sub_band.h"
+
+#include "fxp_mul32.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define Qfmt(a)   (Int32)(a*((Int32)1<<26) + (a>=0?0.5F:-0.5F))
+#define Qfmt31(a)   (Int32)(a*0x7FFFFFFF)
+
+const Int32 CosTable_48[48] =
+{
+    Qfmt31(0.50015063602065F) ,  Qfmt31(0.50135845244641F) ,
+    Qfmt31(0.50378872568104F) ,  Qfmt31(0.50747117207256F) ,
+    Qfmt31(0.51245147940822F) ,  Qfmt31(0.51879271310533F) ,
+    Qfmt31(0.52657731515427F) ,  Qfmt31(0.53590981690799F) ,
+    Qfmt31(0.54692043798551F) ,  Qfmt31(0.55976981294708F) ,
+    Qfmt31(0.57465518403266F) ,  Qfmt31(0.59181853585742F) ,
+    Qfmt31(0.61155734788251F) ,  Qfmt31(0.63423893668840F) ,
+    Qfmt31(0.66031980781371F) ,  Qfmt31(0.69037212820021F) ,
+    Qfmt31(0.72512052237720F) ,  Qfmt31(0.76549416497309F) ,
+    Qfmt31(0.81270209081449F) ,  Qfmt31(0.86834471522335F) ,
+    Qfmt(0.93458359703641F) ,  Qfmt(1.01440826499705F) ,
+    Qfmt(1.11207162057972F) ,  Qfmt(1.23383273797657F) ,
+    Qfmt(1.38929395863283F) ,  Qfmt(1.59397228338563F) ,
+    Qfmt(1.87467598000841F) ,  Qfmt(2.28205006800516F) ,
+    Qfmt(2.92462842815822F) ,  Qfmt(4.08461107812925F) ,
+    Qfmt(6.79675071167363F) ,  Qfmt(20.37387816723145F) , /* 32 */
+    Qfmt(0.50060299823520F) ,  Qfmt(0.50547095989754F) ,
+    Qfmt(0.51544730992262F) ,  Qfmt(0.53104259108978F) ,
+    Qfmt(0.55310389603444F) ,  Qfmt(0.58293496820613F) ,
+    Qfmt(0.62250412303566F) ,  Qfmt(0.67480834145501F) ,
+    Qfmt(0.74453627100230F) ,  Qfmt(0.83934964541553F) ,
+    Qfmt(0.97256823786196F) ,  Qfmt(1.16943993343288F) ,
+    Qfmt(1.48416461631417F) ,  Qfmt(2.05778100995341F) ,
+    Qfmt(3.40760841846872F) ,  Qfmt(10.19000812354803F)
+};
+
+
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; dct_64
+----------------------------------------------------------------------------*/
+
+void pv_split_LC(Int32 *vector,
+                 Int32 *temp_o)
+{
+
+    Int32 i;
+    Int32 *pt_vector     = &vector[0];
+    Int32 *pt_vector_N_1 = &vector[31];
+    const Int32 *pt_cosTerms = &CosTable_48[32];
+    Int32 *pt_temp_o = temp_o;
+    Int32 tmp1;
+    Int32 tmp2;
+    Int32 tmp3;
+
+
+    tmp1 = *(pt_vector);
+    tmp2 = *(pt_vector_N_1--);
+    for (i = 16; i != 0; i--)
+    {
+        tmp3 = *(pt_cosTerms++);
+        *(pt_vector++) =   tmp1  + tmp2;
+        *(pt_temp_o++) = fxp_mul32_Q26((tmp1 - tmp2), tmp3);
+        tmp1 = *(pt_vector);
+        tmp2 = *(pt_vector_N_1--);
+    }
+
+}
+
+
+#ifdef HQ_SBR
+
+
+void dct_64(Int32 vec[], Int32 *scratch_mem)
+{
+    Int32 *temp_e1;
+    Int32 *temp_o1;
+
+    Int32 *pt_vec;
+
+    Int   i;
+
+    Int32 aux1;
+    Int32 aux2;
+    Int32 aux3;
+    Int32 aux4;
+
+    const Int32 *cosTerms = &CosTable_48[31];
+
+    temp_o1 = &vec[32];
+    temp_e1 = temp_o1 - 1;
+
+
+    for (i = 6; i != 0; i--)
+    {
+        aux1 = *(temp_e1);
+        aux2 = *(temp_o1);
+        aux3 = *(cosTerms--);
+        *(temp_e1--) =   aux1  + aux2;
+        *(temp_o1++) = fxp_mul32_Q26((aux1 - aux2), aux3);
+        aux1 = *(temp_e1);
+        aux2 = *(temp_o1);
+        aux3 = *(cosTerms--);
+        *(temp_e1--) =   aux1  + aux2;
+        *(temp_o1++) = fxp_mul32_Q26((aux1 - aux2), aux3);
+    }
+
+
+    for (i = 10; i != 0; i--)
+    {
+        aux1 = *(temp_e1);
+        aux2 = *(temp_o1);
+        aux3 = *(cosTerms--);
+        *(temp_e1--) =   aux1  + aux2;
+        *(temp_o1++) = fxp_mul32_Q31((aux1 - aux2), aux3) << 1;
+        aux1 = *(temp_e1);
+        aux2 = *(temp_o1);
+        aux3 = *(cosTerms--);
+        *(temp_e1--) =   aux1  + aux2;
+        *(temp_o1++) = fxp_mul32_Q31((aux1 - aux2), aux3) << 1;
+    }
+
+
+    pv_split(&vec[16]);
+
+    dct_16(&vec[16], 0);
+    dct_16(vec,     1);      // Even terms
+
+    pv_merge_in_place_N32(vec);
+
+    pv_split_z(&vec[32]);
+
+    dct_16(&vec[32], 1);     // Even terms
+    dct_16(&vec[48], 0);
+
+    pv_merge_in_place_N32(&vec[32]);
+
+
+
+    aux1   = vec[32];
+    aux3   = vec[33];
+    aux4   = vec[ 1];  /* vec[ 1] */
+
+    /* -----------------------------------*/
+    aux1     = vec[32] + vec[33];
+    vec[ 0] +=  aux1;
+    vec[ 1] +=  aux1;
+
+    aux1        = vec[34];
+    aux2        = vec[ 2];   /* vec[ 2] */
+    aux3        += aux1;
+    vec[ 2] = aux4 + aux3;
+    aux4        = vec[ 3];  /* vec[ 3] */
+    vec[ 3] = aux2 + aux3;
+
+    aux3        = vec[35];
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[32] = vec[ 4];
+    vec[33] = vec[ 5];
+    vec[ 4] = aux2 + aux1;
+    vec[ 5] = aux4 + aux1;
+
+    aux1        = vec[36];
+    aux2        = vec[32];  /* vec[ 4] */
+    aux3        += aux1;
+    vec[34] = vec[ 6];
+    vec[35] = vec[ 7];
+    vec[ 6] = aux4 + aux3;
+    vec[ 7] = aux2 + aux3;
+
+    aux3        = vec[37];
+    aux4        = vec[33];  /* vec[ 5] */
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[32] = vec[ 8];
+    vec[33] = vec[ 9];
+    vec[ 8] = aux2 + aux1;
+    vec[ 9] = aux4 + aux1;
+
+    aux1        = vec[38];
+    aux2        = vec[34];  /* vec[ 6] */
+    aux3        += aux1;
+    vec[34] = vec[10];
+    vec[10] = aux4 + aux3;
+    aux4        = vec[35];  /* vec[ 7] */
+    vec[35] = vec[11];
+    vec[11] = aux2 + aux3;
+
+    aux3        = vec[39];
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[36] = vec[12];
+    vec[37] = vec[13];
+    vec[12] = aux2 + aux1;
+    vec[13] = aux4 + aux1;
+
+    aux1        = vec[40];
+    aux2        = vec[32];  /* vec[ 8] */
+    aux3        += aux1;
+    vec[32] = vec[14];
+    vec[14] = aux4 + aux3;
+    aux4        = vec[33];  /* vec[ 9] */
+    vec[33] = vec[15];
+    vec[15] = aux2 + aux3;
+
+    aux3        = vec[41];
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[38] = vec[16];
+    vec[39] = vec[17];
+    vec[16] = aux2 + aux1;
+    vec[17] = aux4 + aux1;
+
+    aux1        = vec[42];
+    aux2        = vec[34];  /* vec[10] */
+    aux3        += aux1;
+    vec[34] = vec[18];
+    vec[18] = aux4 + aux3;
+    aux4        = vec[35];  /* vec[11] */
+    vec[35] = vec[19];
+    vec[19] = aux2 + aux3;
+
+    aux3        = vec[43];
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[40] = vec[20];
+    vec[41] = vec[21];
+    vec[20] = aux2 + aux1;
+    vec[21] = aux4 + aux1;
+
+    aux1        = vec[44];
+    aux2        = vec[36];  /* vec[12] */
+    aux3        += aux1;
+    vec[42] = vec[22];
+    vec[43] = vec[23];
+    vec[22] = aux4 + aux3;
+    vec[23] = aux2 + aux3;
+
+    aux3        = vec[45];
+    aux4        = vec[37];  /* vec[13] */
+
+    /* -----------------------------------*/
+
+
+    scratch_mem[0] = vec[24];
+    scratch_mem[1] = vec[25];
+    aux1        += aux3;
+    vec[24] = aux2 + aux1;
+    vec[25] = aux4 + aux1;
+
+    aux1        = vec[46];
+    aux2        = vec[32];  /* vec[14] */
+    scratch_mem[2] = vec[26];
+    scratch_mem[3] = vec[27];
+    aux3        += aux1;
+    vec[26] = aux4 + aux3;
+    vec[27] = aux2 + aux3;
+
+    aux3        = vec[47];
+    aux4        = vec[33];  /* vec[15] */
+
+    /* -----------------------------------*/
+    scratch_mem[4] = vec[28];
+    scratch_mem[5] = vec[29];
+    aux1        += aux3;
+    vec[28] = aux2 + aux1;
+    vec[29] = aux4 + aux1;
+
+    aux1        = vec[48];
+    aux2        = vec[38];  /* vec[16] */
+    scratch_mem[6] = vec[30];
+    scratch_mem[7] = vec[31];
+    aux3        += aux1;
+    vec[30] = aux4 + aux3;
+    vec[31] = aux2 + aux3;
+
+    aux3        = vec[49];
+    aux4        = vec[39];  /* vec[17] */
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[32] = aux2 + aux1;
+    vec[33] = aux4 + aux1;
+
+    aux1        = vec[50];
+    aux2        = vec[34];  /* vec[18] */
+    aux3        += aux1;
+    vec[34] = aux4 + aux3;
+    aux4        = vec[35];  /* vec[19] */
+    vec[35] = aux2 + aux3;
+
+    aux3        = vec[51];
+
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[36] = aux2 + aux1;
+    vec[37] = aux4 + aux1;
+
+    aux1        = vec[52];
+    aux2        = vec[40];  /* vec[20] */
+    aux3        += aux1;
+    vec[38] = aux4 + aux3;
+    vec[39] = aux2 + aux3;
+
+    aux3        = vec[53];
+    aux4        = vec[41];  /* vec[21] */
+
+    /* -----------------------------------*/
+    aux1        += aux3;
+    vec[40] = aux2 + aux1;
+    vec[41] = aux4 + aux1;
+
+    aux1        = vec[54];
+    aux2        = vec[42];  /* vec[22] */
+    aux3        += aux1;
+    vec[42] = aux4 + aux3;
+    aux4        = vec[43];  /* vec[23] */
+    vec[43] = aux2 + aux3;
+
+    aux3        = vec[55];
+
+    /* -----------------------------------*/
+
+    pt_vec = &vec[44];
+    temp_o1 = &vec[56];
+    temp_e1 = &scratch_mem[0];
+
+    for (i = 4; i != 0; i--)
+    {
+        aux1        += aux3;
+        *(pt_vec++) = aux2 + aux1;
+        *(pt_vec++) = aux4 + aux1;
+
+        aux1        = *(temp_o1++);
+        aux3        += aux1;
+        aux2        = *(temp_e1++);
+        *(pt_vec++) = aux4 + aux3;
+        *(pt_vec++) = aux2 + aux3;
+
+        aux3        = *(temp_o1++);
+        aux4        = *(temp_e1++);
+    }
+
+    aux1       += aux3;
+    vec[60] = aux2 + aux1;
+    vec[61] = aux4 + aux1;
+    vec[62] = aux4 + aux3;
+
+}
+
+
+#endif
+
+/*----------------------------------------------------------------------------
+; pv_split
+----------------------------------------------------------------------------*/
+
+
+void pv_split(Int32 *temp_o)
+{
+
+    Int32 i;
+    const Int32 *pt_cosTerms = &CosTable_48[47];
+    Int32 *pt_temp_o = temp_o;
+    Int32 *pt_temp_e = pt_temp_o - 1;
+    Int32 tmp1;
+    Int32 tmp2;
+    Int32 cosx;
+
+    for (i = 8; i != 0; i--)
+    {
+        tmp2 = *(pt_temp_o);
+        tmp1 = *(pt_temp_e);
+        cosx = *(pt_cosTerms--);
+        *(pt_temp_e--) =   tmp1  + tmp2;
+        *(pt_temp_o++) = fxp_mul32_Q26((tmp1 - tmp2), cosx);
+        tmp1 = *(pt_temp_e);
+        tmp2 = *(pt_temp_o);
+        cosx = *(pt_cosTerms--);
+        *(pt_temp_e--) =   tmp1  + tmp2;
+        *(pt_temp_o++) = fxp_mul32_Q26((tmp1 - tmp2), cosx);
+    }
+}
+
+
+
+void pv_split_z(Int32 *vector)
+{
+    Int32 i;
+    Int32 *pt_vector     = &vector[31];
+    const Int32 *pt_cosTerms = &CosTable_48[32];
+    Int32 *pt_temp_e = vector;
+    Int32 tmp1;
+    Int32 tmp2;
+    Int32 cosx;
+
+    for (i = 8; i != 0; i--)
+    {
+        tmp1 = *(pt_vector);
+        tmp2 = *(pt_temp_e);
+        cosx = *(pt_cosTerms++);
+        *(pt_temp_e++) =   tmp1  + tmp2;
+        *(pt_vector--) = fxp_mul32_Q26((tmp1 - tmp2), cosx);
+        tmp2 = *(pt_temp_e);
+        tmp1 = *(pt_vector);
+        cosx = *(pt_cosTerms++);
+        *(pt_temp_e++) =   tmp1  + tmp2;
+        *(pt_vector--) = fxp_mul32_Q26((tmp1 - tmp2), cosx);
+    }
+}
+
+
+void pv_merge_in_place_N32(Int32 vec[])
+{
+
+    Int32 temp[4];
+
+    temp[0] = vec[14];
+    vec[14] = vec[ 7];
+    temp[1] = vec[12];
+    vec[12] = vec[ 6];
+    temp[2] = vec[10];
+    vec[10] = vec[ 5];
+    temp[3] = vec[ 8];
+    vec[ 8] = vec[ 4];
+    vec[ 6] = vec[ 3];
+    vec[ 4] = vec[ 2];
+    vec[ 2] = vec[ 1];
+
+    vec[ 1] = vec[16] + vec[17];
+    vec[16] = temp[3];
+    vec[ 3] = vec[18] + vec[17];
+    vec[ 5] = vec[19] + vec[18];
+    vec[18] = vec[9];
+    temp[3] = vec[11];
+
+    vec[ 7] = vec[20] + vec[19];
+    vec[ 9] = vec[21] + vec[20];
+    vec[20] = temp[2];
+    temp[2] = vec[13];
+    vec[11] = vec[22] + vec[21];
+    vec[13] = vec[23] + vec[22];
+    vec[22] = temp[3];
+    temp[3] = vec[15];
+    vec[15] = vec[24] + vec[23];
+    vec[17] = vec[25] + vec[24];
+    vec[19] = vec[26] + vec[25];
+    vec[21] = vec[27] + vec[26];
+    vec[23] = vec[28] + vec[27];
+    vec[25] = vec[29] + vec[28];
+    vec[27] = vec[30] + vec[29];
+    vec[29] = vec[30] + vec[31];
+    vec[24] = temp[1];
+    vec[26] = temp[2];
+    vec[28] = temp[0];
+    vec[30] = temp[3];
+}
+
+#endif
+
+

media/libstagefright/codecs/aacdec/dct64.h

@@ -0,0 +1,81 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/dct64.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef DCT64_H
+#define DCT64_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+    extern const Int32 CosTable_48[48];
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    void pv_split_LC(Int32 *vector,
+                     Int32 *temp_o);
+
+
+#ifdef HQ_SBR
+
+    void dct_64(Int32 vec[], Int32 *scratch_mem);
+
+#endif
+
+    void pv_split(Int32 *temp_o);
+
+    void pv_split_z(Int32 *vector);
+
+    void pv_merge_in_place_N32(Int32 vec[]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* DCT64_H */

media/libstagefright/codecs/aacdec/decode_huff_cw_binary.cpp

@@ -0,0 +1,708 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/decode_huff_cw_binary.c
+ Funtions:
+    decode_huff_cw_tab1
+    decode_huff_cw_tab2
+    decode_huff_cw_tab3
+    decode_huff_cw_tab4
+    decode_huff_cw_tab5
+    decode_huff_cw_tab6
+    decode_huff_cw_tab7
+    decode_huff_cw_tab8
+    decode_huff_cw_tab9
+    decode_huff_cw_tab10
+    decode_huff_cw_tab11
+    decode_huff_cw_scl
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Updated per review comments
+              (1) make cw sgined and change "if(cw&0x80000000)" to if(cw<0)
+              (2)
+
+ Description: Create specific functions for different huffman tables.
+
+
+ Description: Added ( Int16) castings to eliminate several compiler warnings
+
+
+ Description: Modified huffman tables to allocate int32 variables instead of
+              int16, which lead to data missaligned for some compiler.
+              Eliminated casting and unused variables
+
+
+ Who:                                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    BITS          *pInputStream = pointer to input bit stream
+
+ Local Stores/Buffers/Pointers Needed:
+
+
+ Global Stores/Buffers/Pointers Needed:
+
+
+ Outputs:
+    idx = bit field extracted from a leaf entry of packed Huffman Tables
+
+ Pointers and Buffers Modified:
+
+ Local Stores Modified:
+
+ Global Stores Modified:
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+   These functions are used to decode huffman codewords from the input
+   bitstream using combined binary search and look-up table approach.
+
+   First the codewords are grouped and the input symbol is determined
+   which group it belongs. Then within that group, a look-up table is
+   used to determine which codeword the symbol is.
+   The table is created by ordering the codeword in the table according to their
+   normalized shifted binary value, i.e., all the codewords are left
+   shifted to meet the maximum codelength. Example, max codelength is
+   10, the codeword with lenth 3 will left shift by 7.
+   The binary values of after the shift are sorted.
+   Then the sorted table is divided into several partition.
+   At the VLC decoding period, input is read in at max codelenght.
+   The partition is decided using if-else logic.
+   Inside each partition, a look-up table is used to map the input value
+   to a correct symbol. Table entries can appear to be repeated according
+   to the humming distance between adjacent codewords.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+ (2) Introduction to Algorithms,
+     Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest.
+     The MIT press, 1990
+
+ (3) "Selecting an Optimal Huffman Decoder for AAC",
+     Vladimir Z. Mesarovic, et al.
+     AES 111th Convention, September 21-24, 2001, New York, USA
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE:
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES:
+
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "huffman.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define    MAX_CW_LEN  (19)
+#define    MASK_IDX    (0x1FF)
+#define    MASK_RIGHT  (0xFE00)
+
+#define    UPPER16      (16)
+#define    MASK_LOW16   (0xFFFF)
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Int decode_huff_cw_tab1(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              11,
+              pInputStream);
+    if ((cw >> 10) == 0)
+    {
+        pInputStream->usedBits -= (11 - 1);
+        return 40; /* idx is 40 */
+    }
+    else if ((cw >> 6) <= 23)
+    {
+        tab = (cw >> 6) - 16;
+    }
+    else if ((cw >> 4) <= 119)
+    {
+        tab = (cw >> 4) - 96 + 8;
+    }
+    else if ((cw >> 2) <= 503)
+    {
+        tab = (cw >> 2) - 480 + 32;
+    }
+    else
+    {
+        tab = cw - 2016 + 56;
+    }
+
+    tab = *(huff_tab1 + tab);
+
+    pInputStream->usedBits -= (11 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab2(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get9_n_lessbits(
+              9,
+              pInputStream);
+    if ((cw >> 6) == 0)
+    {
+        pInputStream->usedBits -= (9 - 3); /* used 3 bits */
+        return 40; /* idx is 40 */
+    }
+    else if ((cw >> 3) <= 49)
+    {
+        tab = (cw >> 3) - 8;
+    }
+    else if ((cw >> 2) <= 114)
+    {
+        tab = (cw >> 2) - 100 + 42;
+    }
+    else if ((cw >> 1) <= 248)
+    {
+        tab = (cw >> 1) - 230 + 57;
+    }
+    else
+    {
+        tab = cw - 498 + 76;
+    }
+
+    tab = *(huff_tab2 + tab);
+
+    pInputStream->usedBits -= (9 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab3(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              16,
+              pInputStream);
+    if ((cw >> 15) == 0)
+    {
+        pInputStream->usedBits -= (16 - 1); /* used 1 bits */
+        return 0; /* idx is 0 */
+    }
+    else if ((cw >> 10) <= 57)
+    {
+        tab = (cw >> 10) - 32;
+    }
+    else if ((cw >> 7) <= 500)
+    {
+        tab = (cw >> 7) - 464 + 26;
+    }
+    else if ((cw >> 6) <= 1016)
+    {
+        tab = (cw >> 6) - 1002 + 63;
+    }
+    else if ((cw >> 4) <= 4092)
+    {
+        tab = (cw >> 4) - 4068 + 78;
+    }
+    else
+    {
+        tab = cw - 65488 + 103;
+    }
+
+    tab = *(huff_tab3 + tab);
+
+    pInputStream->usedBits -= (16 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab4(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              12,
+              pInputStream);
+
+    if ((cw >> 7) <= 25)
+    {
+        tab = (cw >> 7);
+    }
+    else if ((cw >> 4) <= 246)
+    {
+        tab = (cw >> 4) - 208 + 26;
+    }
+    else if ((cw >> 2) <= 1017)
+    {
+        tab = (cw >> 2) - 988 + 65;
+    }
+    else
+    {
+        tab = cw - 4072 + 95;
+    }
+
+    tab = *(huff_tab4 + tab);
+
+    pInputStream->usedBits -= (12 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+
+Int decode_huff_cw_tab5(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              13,
+              pInputStream);
+
+    if ((cw >> 12) == 0)
+    {
+        pInputStream->usedBits -= (13 - 1); /* used 1 bits */
+        return 40; /* idx is 40 */
+    }
+    else if ((cw >> 8) <= 27)
+    {
+        tab = (cw >> 8) - 16;
+    }
+    else if ((cw >> 5) <= 243)
+    {
+        tab = (cw >> 5) - 224 + 12;
+    }
+    else if ((cw >> 3) <= 1011)
+    {
+        tab = (cw >> 3) - 976 + 32;
+    }
+    else if ((cw >> 2) <= 2041)
+    {
+        tab = (cw >> 2) - 2024 + 68;
+    }
+    else
+    {
+        tab = cw - 8168 + 86;
+    }
+
+    tab = *(huff_tab5 + tab);
+
+    pInputStream->usedBits -= (13 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+
+Int decode_huff_cw_tab6(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              11,
+              pInputStream);
+
+    if ((cw >> 7) <= 8)
+    {
+        tab = (cw >> 7);
+    }
+    else if ((cw >> 4) <= 116)
+    {
+        tab = (cw >> 4) - 72 + 9;
+    }
+    else if ((cw >> 2) <= 506)
+    {
+        tab = (cw >> 2) - 468 + 54;
+    }
+    else
+    {
+        tab = cw - 2028 + 93;
+    }
+
+    tab = *(huff_tab6 + tab);
+
+    pInputStream->usedBits -= (11 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+
+Int decode_huff_cw_tab7(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              12,
+              pInputStream);
+
+    if ((cw >> 11) == 0)
+    {
+        pInputStream->usedBits -= (12 - 1); /* used 1 bits */
+        return 0; /* idx is 0 */
+    }
+    else if ((cw >> 6) <= 55)
+    {
+        tab = (cw >> 6) - 32;
+    }
+    else if ((cw >> 4) <= 243)
+    {
+        tab = (cw >> 4) - 224 + 24;
+    }
+    else if ((cw >> 2) <= 1018)
+    {
+        tab = (cw >> 2) - 976 + 44;
+    }
+    else
+    {
+        tab = cw - 4076 + 87;
+    }
+
+    tab = *(huff_tab7 + tab);
+
+    pInputStream->usedBits -= (12 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+
+Int decode_huff_cw_tab8(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              10,
+              pInputStream);
+
+    if ((cw >> 5) <= 20)
+    {
+        tab = (cw >> 5);
+    }
+    else if ((cw >> 3) <= 117)
+    {
+        tab = (cw >> 3) - 84 + 21;
+    }
+    else if ((cw >> 2) <= 250)
+    {
+        tab = (cw >> 2) - 236 + 55;
+    }
+    else
+    {
+        tab = cw - 1004 + 70;
+    }
+
+    tab = *(huff_tab8 + tab);
+
+    pInputStream->usedBits -= (10 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab9(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              15,
+              pInputStream);
+
+    if ((cw >> 11) <= 12)
+    {
+        tab = (cw >> 11);
+    }
+    else if ((cw >> 8) <= 114)
+    {
+        tab = (cw >> 8) - 104 + 13;
+    }
+    else if ((cw >> 6) <= 486)
+    {
+        tab = (cw >> 6) - 460 + 24;
+    }
+    else if ((cw >> 5) <= 993)
+    {
+        tab = (cw >> 5) - 974 + 51;
+    }
+    else if ((cw >> 4) <= 2018)
+    {
+        tab = (cw >> 4) - 1988 + 71;
+    }
+    else if ((cw >> 3) <= 4075)
+    {
+        tab = (cw >> 3) - 4038 + 102;
+    }
+    else if ((cw >> 2) <= 8183)
+    {
+        tab = (cw >> 2) - 8152 + 140;
+    }
+    else
+    {
+        tab = cw - 32736 + 172;
+    }
+
+    tab = *(huff_tab9 + tab);
+
+    pInputStream->usedBits -= (15 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab10(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              12,
+              pInputStream);
+
+    if ((cw >> 6) <= 41)
+    {
+        tab = (cw >> 6);
+    }
+    else if ((cw >> 5) <= 100)
+    {
+        tab = (cw >> 5) - 84 + 42;
+    }
+    else if ((cw >> 4) <= 226)
+    {
+        tab = (cw >> 4) - 202 + 59;
+    }
+    else if ((cw >> 3) <= 484)
+    {
+        tab = (cw >> 3) - 454 + 84;
+    }
+    else if ((cw >> 2) <= 1010)
+    {
+        tab = (cw >> 2) - 970 + 115;
+    }
+    else if ((cw >> 1) <= 2043)
+    {
+        tab = (cw >> 1) - 2022 + 156;
+    }
+    else
+    {
+        tab = cw - 4088 + 178;
+    }
+
+    tab = *(huff_tab10 + tab);
+
+    pInputStream->usedBits -= (12 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_cw_tab11(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = get17_n_lessbits(
+              12,
+              pInputStream);
+
+    if ((cw >> 6) <= 26)
+    {
+        tab = (cw >> 6);
+    }
+    else if ((cw >> 5) <= 69)
+    {
+        tab = (cw >> 5) - 54 + 27;
+    }
+    else if ((cw >> 4) <= 198)
+    {
+        tab = (cw >> 4) - 140 + 43;
+    }
+    else if ((cw >> 3) <= 452)
+    {
+        tab = (cw >> 3) - 398 + 102;
+    }
+    else if ((cw >> 2) <= 1000)
+    {
+        tab = (cw >> 2) - 906 + 157;
+    }
+    else if ((cw >> 1) <= 2044)
+    {
+        tab = (cw >> 1) - 2002 + 252;
+    }
+    else
+    {
+        tab = cw - 4090 + 295;
+    }
+
+    tab = *(huff_tab11 + tab);
+
+    pInputStream->usedBits -= (12 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+
+
+Int decode_huff_scl(
+    BITS          *pInputStream)
+{
+    Int32  tab;
+    Int32  cw;
+
+    cw  = getbits(
+              19,
+              pInputStream);
+
+    if ((cw >> 18) == 0)
+    {
+        pInputStream->usedBits -= (19 - 1); /* used 1 bits */
+        return 60; /* idx is 60 */
+    }
+    else if ((cw >> 13) <= 59)
+    {
+        tab = (cw >> 13) - 32;
+    }
+    else if ((cw >> 10) <= 505)
+    {
+        tab = (cw >> 10) - 480 + 28;
+    }
+    else if ((cw >> 7) <= 4089)
+    {
+        tab = (cw >> 7) - 4048 + 54;
+    }
+    else if ((cw >> 5) <= 16377)
+    {
+        tab = (cw >> 5) - 16360 + 96;
+    }
+    else if ((cw >> 3) <= 65526)
+    {
+        tab = (cw >> 3) - 65512 + 114;
+    }
+    else if ((cw >> 1) <= 262120)
+    {
+        tab = (cw >> 1) - 262108 + 129;
+    }
+    else
+    {
+        tab = cw - 524242 + 142;
+    }
+
+    tab = *(huff_tab_scl + tab);
+
+    pInputStream->usedBits -= (19 - (tab & MASK_LOW16));
+    return ((Int)(tab >> UPPER16));
+}
+

media/libstagefright/codecs/aacdec/decode_noise_floorlevels.cpp

@@ -0,0 +1,163 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: decode_noise_floorlevels.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+#ifdef AAC_PLUS
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "decode_noise_floorlevels.h"
+#include    "sbr_constants.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void decode_noise_floorlevels(SBR_FRAME_DATA * hFrameData)
+
+{
+    Int32 env;
+    Int32 i;
+
+    Int32 * frameInfo           = hFrameData->frameInfo;
+    Int32   nNfb                = hFrameData->nNfb;
+    Int32 * domain_vec          = hFrameData->domain_vec2;
+
+    Int32 * sbrNoiseFloorLevel_man = hFrameData->sbrNoiseFloorLevel_man;
+    Int32 * prevNoiseLevel_man     = hFrameData->prevNoiseLevel_man;
+
+    Int32 nEnv = frameInfo[(frameInfo[0] << 1) + 3];
+
+    for (env = 0; env < nEnv; env++)
+    {
+        if (domain_vec[env] == 0)
+        {
+            prevNoiseLevel_man[0] = *(sbrNoiseFloorLevel_man++);
+
+            for (i = 1; i < nNfb; i++)
+            {
+                *sbrNoiseFloorLevel_man += *(sbrNoiseFloorLevel_man - 1);
+                prevNoiseLevel_man[i] = *(sbrNoiseFloorLevel_man++);
+            }
+        }
+        else
+        {
+            for (i = 0; i < nNfb; i++)
+            {
+                *sbrNoiseFloorLevel_man += prevNoiseLevel_man[i];
+                prevNoiseLevel_man[i] = *(sbrNoiseFloorLevel_man++);
+            }
+        }
+
+    }
+}
+
+#endif

media/libstagefright/codecs/aacdec/decode_noise_floorlevels.h

@@ -0,0 +1,92 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: decode_noise_floorlevels.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DECODENOISEFLOORLEVELS_H
+#define DECODENOISEFLOORLEVELS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "s_sbr_frame_data.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void decode_noise_floorlevels(SBR_FRAME_DATA * hFrameData);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/deinterleave.cpp

@@ -0,0 +1,287 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/deinterleave.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from original shareware code
+
+ Description: (1) Modified with new template, rename variables
+              (2) Removed for-loop to calculate win_inc, win_inc = SN2 (128)
+              (3) Replaced for-loop with memcpy
+              (4) Converted Int16 -> Int
+
+ Description: Modified per review comments
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    interleaved   = input array that contains interleaved coefficients
+                    Data Type Int
+
+    deinterleaved = output array that will be updated with de-interleaved
+                    coefficients of input array. Data Type Int
+
+    pFrameInfo = pointer to structure that holds information of current
+                 frame. Data Type FrameInfo
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    deinterleaved  contents updated with de-interleaved coefficients from
+                   the input array: interleaved
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the deinterleaving across all short windows in
+ each group
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function should replace the contents of pDeinterleaved with the
+ de-interleaved 1024 coefficients of one frame
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+ (2) ISO/IEC 14496-3: 1999(E)
+    Subpart 4           p78     quant_to_spec
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    pInterleaved   = interleaved;
+    pDeinterleaved = deinterleaved;
+
+    pSfbPerWin  = pFrameInfo->sfb_per_win;
+    ngroups     = pFrameInfo->num_groups;
+    pGroupLen   = pFrameInfo->group_len;
+
+    pGroup = pDeinterleaved;
+
+    FOR (group = ngroups; group > 0; group--)
+
+        pSfbWidth   = pFrameInfo->sfb_width_128;
+        sfb_inc = 0;
+        pStart = pInterleaved;
+
+        FOR (sfb = pSfbPerWin[ngroups-group]; sfb > 0; sfb--)
+
+            pWin = pGroup;
+
+            FOR (win = pGroupLen[ngroups-group]; win > 0; win--)
+
+                pDeinterleaved = pWin + sfb_inc;
+
+                pv_memcpy(
+                     pDeinterleaved,
+                     pInterleaved,
+                    *pSfbWidth*sizeof(*pInterleaved));
+
+                pInterleaved += *pSfbWidth;
+
+                pWin += SN2;
+
+            ENDFOR (win)
+
+            sfb_inc += *pSfbWidth++;
+
+        ENDFOR (sfb)
+
+    pGroup += (pInterleaved - pStart);
+
+    ENDFOR (group)
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "huffman.h"
+#include    "aac_mem_funcs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void deinterleave(
+    Int16        interleaved[],
+    Int16        deinterleaved[],
+    FrameInfo   *pFrameInfo)
+{
+
+    Int      group;  /* group index */
+    Int      sfb;    /* scalefactor band index */
+    Int      win;    /* window index */
+    Int16    *pGroup;
+    Int16    *pWin;
+    Int16    *pStart;
+    Int16    *pInterleaved;
+    Int16    *pDeinterleaved;
+    Int      sfb_inc;
+
+    Int      ngroups;
+    Int     *pGroupLen;
+    Int     *pSfbPerWin;
+    Int     *pSfbWidth;
+
+    pInterleaved   = interleaved;
+    pDeinterleaved = deinterleaved;
+
+    pSfbPerWin  = pFrameInfo->sfb_per_win;
+    ngroups     = pFrameInfo->num_groups;
+    pGroupLen   = pFrameInfo->group_len;
+
+    pGroup = pDeinterleaved;
+
+    for (group = ngroups; group > 0; group--)
+    {
+        pSfbWidth   = pFrameInfo->sfb_width_128;
+        sfb_inc = 0;
+        pStart = pInterleaved;
+
+        /* Perform the deinterleaving across all windows in a group */
+
+        for (sfb = pSfbPerWin[ngroups-group]; sfb > 0; sfb--)
+        {
+            pWin = pGroup;
+
+            for (win = pGroupLen[ngroups-group]; win > 0; win--)
+            {
+                pDeinterleaved = pWin + sfb_inc;
+
+                pv_memcpy(
+                    pDeinterleaved,
+                    pInterleaved,
+                    *pSfbWidth*sizeof(*pInterleaved));
+
+                pInterleaved += *pSfbWidth;
+
+                pWin += SN2;
+
+            } /* for (win) */
+
+            sfb_inc += *pSfbWidth++;
+
+        } /* for (sfb) */
+
+        pGroup += (pInterleaved - pStart);
+
+    } /* for (group) */
+
+} /* deinterleave */

media/libstagefright/codecs/aacdec/digit_reversal_tables.cpp

@@ -0,0 +1,279 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/digit_reversal_tables.c
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+  ------------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+  Tables for digit reverse operation
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "digit_reversal_tables.h"
+#include "imdct_fxp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ Digit Reverse tables
+------------------------------------------------------------------------------
+*/
+
+const Int16 digit_reverse_64[ 64] =
+{
+    + 0,  + 32,  + 64,  + 96,
+    + 8,  + 40,  + 72, + 104,
+    + 16,  + 48,  + 80, + 112,
+    + 24,  + 56,  + 88, + 120,
+    + 2,  + 34,  + 66,  + 98,
+    + 10,  + 42,  + 74, + 106,
+    + 18,  + 50,  + 82, + 114,
+    + 26,  + 58,  + 90, + 122,
+    + 4,  + 36,  + 68, + 100,
+    + 12,  + 44,  + 76, + 108,
+    + 20,  + 52,  + 84, + 116,
+    + 28,  + 60,  + 92, + 124,
+    + 6,  + 38,  + 70, + 102,
+    + 14,  + 46,  + 78, + 110,
+    + 22,  + 54,  + 86, + 118,
+    + 30,  + 62,  + 94, + 126
+};
+
+
+const Int16 digit_reverse_256[ 256] =
+{
+    + 0, + 128, + 256, + 384,
+    + 32, + 160, + 288, + 416,
+    + 64, + 192, + 320, + 448,
+    + 96, + 224, + 352, + 480,
+    + 8, + 136, + 264, + 392,
+    + 40, + 168, + 296, + 424,
+    + 72, + 200, + 328, + 456,
+    + 104, + 232, + 360, + 488,
+    + 16, + 144, + 272, + 400,
+    + 48, + 176, + 304, + 432,
+    + 80, + 208, + 336, + 464,
+    + 112, + 240, + 368, + 496,
+    + 24, + 152, + 280, + 408,
+    + 56, + 184, + 312, + 440,
+    + 88, + 216, + 344, + 472,
+    + 120, + 248, + 376, + 504,
+    + 2, + 130, + 258, + 386,
+    + 34, + 162, + 290, + 418,
+    + 66, + 194, + 322, + 450,
+    + 98, + 226, + 354, + 482,
+    + 10, + 138, + 266, + 394,
+    + 42, + 170, + 298, + 426,
+    + 74, + 202, + 330, + 458,
+    + 106, + 234, + 362, + 490,
+    + 18, + 146, + 274, + 402,
+    + 50, + 178, + 306, + 434,
+    + 82, + 210, + 338, + 466,
+    + 114, + 242, + 370, + 498,
+    + 26, + 154, + 282, + 410,
+    + 58, + 186, + 314, + 442,
+    + 90, + 218, + 346, + 474,
+    + 122, + 250, + 378, + 506,
+    + 4, + 132, + 260, + 388,
+    + 36, + 164, + 292, + 420,
+    + 68, + 196, + 324, + 452,
+    + 100, + 228, + 356, + 484,
+    + 12, + 140, + 268, + 396,
+    + 44, + 172, + 300, + 428,
+    + 76, + 204, + 332, + 460,
+    + 108, + 236, + 364, + 492,
+    + 20, + 148, + 276, + 404,
+    + 52, + 180, + 308, + 436,
+    + 84, + 212, + 340, + 468,
+    + 116, + 244, + 372, + 500,
+    + 28, + 156, + 284, + 412,
+    + 60, + 188, + 316, + 444,
+    + 92, + 220, + 348, + 476,
+    + 124, + 252, + 380, + 508,
+    + 6, + 134, + 262, + 390,
+    + 38, + 166, + 294, + 422,
+    + 70, + 198, + 326, + 454,
+    + 102, + 230, + 358, + 486,
+    + 14, + 142, + 270, + 398,
+    + 46, + 174, + 302, + 430,
+    + 78, + 206, + 334, + 462,
+    + 110, + 238, + 366, + 494,
+    + 22, + 150, + 278, + 406,
+    + 54, + 182, + 310, + 438,
+    + 86, + 214, + 342, + 470,
+    + 118, + 246, + 374, + 502,
+    + 30, + 158, + 286, + 414,
+    + 62, + 190, + 318, + 446,
+    + 94, + 222, + 350, + 478,
+    + 126, + 254, + 382, + 510
+};
+
+
+
+
+const Int16 digit_reverse_swap_256[ 241] =
+{
+    + 2, + 128,   + 4, + 256,
+    + 6, + 384,   + 8,  + 32,
+    + 10, + 160,  + 12, + 288,
+    + 14, + 416,  + 16,  + 64,
+    + 18, + 192,  + 20, + 320,
+    + 22, + 448,  + 24,  + 96,
+    + 26, + 224,  + 28, + 352,
+    + 30, + 480,  + 34, + 136,
+    + 36, + 264,  + 38, + 392,
+    + 42, + 168,  + 44, + 296,
+    + 46, + 424,  + 48,  + 72,
+    + 50, + 200,  + 52, + 328,
+    + 54, + 456,  + 56, + 104,
+    + 58, + 232,  + 60, + 360,
+    + 62, + 488,  + 66, + 144,
+    + 68, + 272,  + 70, + 400,
+    + 74, + 176,  + 76, + 304,
+    + 78, + 432,  + 82, + 208,
+    + 84, + 336,  + 86, + 464,
+    + 88, + 112,  + 90, + 240,
+    + 92, + 368,  + 94, + 496,
+    + 98, + 152, + 100, + 280,
+    + 102, + 408, + 106, + 184,
+    + 108, + 312, + 110, + 440,
+    + 114, + 216, + 116, + 344,
+    + 118, + 472, + 122, + 248,
+    + 124, + 376, + 126, + 504,
+    + 132, + 258, + 134, + 386,
+    + 138, + 162, + 140, + 290,
+    + 142, + 418, + 146, + 194,
+    + 148, + 322, + 150, + 450,
+    + 154, + 226, + 156, + 354,
+    + 158, + 482, + 164, + 266,
+    + 166, + 394, + 172, + 298,
+    + 174, + 426, + 178, + 202,
+    + 180, + 330, + 182, + 458,
+    + 186, + 234, + 188, + 362,
+    + 190, + 490, + 196, + 274,
+    + 198, + 402, + 204, + 306,
+    + 206, + 434, + 212, + 338,
+    + 214, + 466, + 218, + 242,
+    + 220, + 370, + 222, + 498,
+    + 228, + 282, + 230, + 410,
+    + 236, + 314, + 238, + 442,
+    + 244, + 346, + 246, + 474,
+    + 252, + 378, + 254, + 506,
+    + 262, + 388, + 268, + 292,
+    + 270, + 420, + 276, + 324,
+    + 278, + 452, + 284, + 356,
+    + 286, + 484, + 294, + 396,
+    + 302, + 428, + 308, + 332,
+    + 310, + 460, + 316, + 364,
+    + 318, + 492, + 326, + 404,
+    + 334, + 436, + 342, + 468,
+    + 348, + 372, + 350, + 500,
+    + 358, + 412, + 366, + 444,
+    + 374, + 476, + 382, + 508,
+    + 398, + 422, + 406, + 454,
+    + 414, + 486, + 438, + 462,
+    + 446, + 494, + 478, + 502
+};
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void digit_reversal_swapping(Int32 *y, Int32 *x);
+
+#ifdef __cplusplus
+}
+#endif
+
+void digit_reversal_swapping(Int32 *y, Int32 *x)
+{
+    Int16 i, j;
+    Int32 tmp[2];
+    const Int16 *pTable;
+
+    pTable = digit_reverse_swap_256;
+
+    for (Int k = 120; k != 0; k--)
+    {
+        i = *pTable++;
+        j = *pTable++;
+        tmp[0] = y[i];
+        tmp[1] = y[i+1];
+        y[i]   = y[j];
+        y[i+1] = y[j+1];
+        y[j]   = tmp[0];
+        y[j+1] = tmp[1];
+
+        tmp[0] = x[j];
+        tmp[1] = x[j+1];
+        x[j]   = x[i];
+        x[j+1] = x[i+1];
+        x[i]   = tmp[0];
+        x[i+1] = tmp[1];
+
+    }
+
+}

media/libstagefright/codecs/aacdec/digit_reversal_tables.h

@@ -0,0 +1,86 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/DIGIT_REVERSAL_TABLES.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for functions digit_reversal_tables
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef DIGIT_REVERSAL_TABLES_H
+#define DIGIT_REVERSAL_TABLES_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+extern const Int16 digit_reverse_64[];
+extern const Int16 digit_reverse_256[];
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* DIGIT_REVERSAL_TABLES_H */

media/libstagefright/codecs/aacdec/dst16.cpp

@@ -0,0 +1,172 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: dst16.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 x             32-bit integer input length 16
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement discrete sine transform of lenght 16
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+#include "dst16.h"
+#include "dst8.h"
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+#define R_SHIFT     28
+#define Qfmt(x)   (Int32)(x*((Int32)1<<R_SHIFT) + (x>=0?0.5F:-0.5F))
+
+const Int32 CosTable_8[8] =
+{
+    Qfmt(0.50241928618816F),   Qfmt(0.52249861493969F),
+    Qfmt(0.56694403481636F),   Qfmt(0.64682178335999F),
+    Qfmt(0.78815462345125F),   Qfmt(1.06067768599035F),
+    Qfmt(1.72244709823833F),   Qfmt(5.10114861868916F)
+};
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void dst_16(Int32 vec[], Int32 scratch_mem[])     /* scratch_mem size 8 */
+{
+    Int32 *temp_even = scratch_mem;
+
+    Int i;
+    const Int32 *pt_cos = &CosTable_8[7];
+    Int32 tmp0 = vec[15] >> 1;
+    Int32 tmp1, tmp2;
+    Int32 *pt_even = temp_even;
+    Int32 *pt_odd  = vec;
+    Int32 *pt_vec  = vec;
+    Int32 *pt_vecN_1;
+    Int32 tmp3;
+
+
+    *(pt_even++) = *(pt_vec++);
+    tmp1         = *(pt_vec++);
+    *(pt_odd++) = tmp1;
+
+    for (i = 3; i != 0; i--)
+    {
+        *(pt_even++) = *(pt_vec++);
+        tmp2         = *(pt_vec++);
+        *(pt_even++) = *(pt_vec++);
+        tmp3         = *(pt_vec++);
+        *(pt_odd++) = tmp2 + tmp1;
+        *(pt_odd++) = tmp3 + tmp2;
+        tmp1         = tmp3;
+
+    }
+
+    *(pt_even)   = *(pt_vec++);
+    *(pt_odd++) = *(pt_vec) + tmp1;
+
+
+    dst_8(temp_even);
+    dst_8(vec);
+
+    pt_vec  = &vec[7];
+
+    pt_even = &temp_even[7];
+    pt_vecN_1  = &vec[8];
+
+    tmp1 = *(pt_even--);
+
+    for (i = 4; i != 0; i--)
+    {
+        tmp3  = fxp_mul32_Q28((*(pt_vec) - tmp0), *(pt_cos--));
+        tmp2 = *(pt_even--);
+        *(pt_vec--)     = tmp3 + tmp1;
+        *(pt_vecN_1++)  = tmp3 - tmp1;
+        tmp3  = fxp_mul32_Q28((*(pt_vec) + tmp0), *(pt_cos--));
+        tmp1 = *(pt_even--);
+        *(pt_vecN_1++)  = tmp3 - tmp2;
+        *(pt_vec--)     = tmp3 + tmp2;
+    }
+
+}
+
+#endif

media/libstagefright/codecs/aacdec/dst16.h

@@ -0,0 +1,68 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/dst16.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef DST16_H
+#define DST16_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    void dst_16(Int32 vec[], Int32 scratch_mem[]);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* DST16_H */

media/libstagefright/codecs/aacdec/dst32.cpp

@@ -0,0 +1,200 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: dst32.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 x             32-bit integer input length 32
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement discrete sine transform of lenght 32
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include "dst32.h"
+#include "dst16.h"
+
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+#define R_SHIFT1     29
+#define Qfmt29(x)   (Int32)(x*((Int32)1<<R_SHIFT1) + (x>=0?0.5F:-0.5F))
+#define Qfmt31(a)   (Int32)(a*0x7FFFFFFF + (a>=0?0.5F:-0.5F))
+
+const Int32 CosTable_16[14] =
+{
+    Qfmt31(0.50060299823520F),   Qfmt31(0.50547095989754F),
+    Qfmt31(0.51544730992262F),   Qfmt31(0.53104259108978F),
+    Qfmt31(0.55310389603444F),   Qfmt31(0.58293496820613F),
+    Qfmt31(0.62250412303566F),   Qfmt31(0.67480834145501F),
+    Qfmt31(0.74453627100230F),   Qfmt31(0.83934964541553F),
+    Qfmt29(0.97256823786196F),   Qfmt29(1.16943993343288F),
+    Qfmt29(1.48416461631417F),   Qfmt29(2.05778100995341F)
+};
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void dst_32(Int32 vec[], Int32 scratch_mem[])   /* scratch_mem size 32 */
+{
+    Int32 *temp_even = scratch_mem;
+
+    Int32 i;
+    const Int32 *pt_cos = &CosTable_16[13];
+    Int32 tmp0 = vec[31] >> 1;
+    Int32 tmp1, tmp2;
+    Int32 *pt_even = temp_even;
+    Int32 *pt_odd  = vec;
+    Int32 *pt_vec  = vec;
+    Int32 *pt_vecN_1  = vec;
+    Int32 tmp3;
+
+
+    tmp1 = 0;
+
+    for (i = 5; i != 0; i--)
+    {
+        *(pt_even++) = *(pt_vec++);
+        tmp2         = *(pt_vec++);
+        *(pt_even++) = *(pt_vec++);
+        tmp3         = *(pt_vec++);
+        *(pt_even++) = *(pt_vec++);
+        *(pt_odd++) = tmp2 + tmp1;
+        *(pt_odd++) = tmp3 + tmp2;
+        tmp1         = *(pt_vec++);
+        *(pt_odd++) = tmp1 + tmp3;
+    }
+
+    *(pt_even) = *(pt_vec++);
+    *(pt_odd)  = *(pt_vec) + tmp1;
+
+
+    dst_16(temp_even, &scratch_mem[16]);
+    dst_16(vec, &scratch_mem[24]);
+
+
+    pt_vecN_1  = &vec[16];
+
+    tmp1 = temp_even[15];
+
+    tmp3  = fxp_mul32_Q31((vec[15] - tmp0) << 3, Qfmt31(0.63687550772175F)) << 2;
+    tmp2  = temp_even[14];
+    *(pt_vecN_1++)  = tmp3 - tmp1;
+    vec[15]         = tmp3 + tmp1;
+    tmp1  = temp_even[13];
+    tmp3  = fxp_mul32_Q31((vec[14] + tmp0) << 3, Qfmt31(0.85190210461718F));
+    *(pt_vecN_1++)  = tmp3 - tmp2;
+    vec[14]         = tmp3 + tmp2;
+
+    pt_even = &temp_even[12];
+    pt_vec  = &vec[13];
+
+    for (i = 2; i != 0; i--)
+    {
+        tmp3  = fxp_mul32_Q29((*(pt_vec) - tmp0), *(pt_cos--));
+        tmp2 = *(pt_even--);
+        *(pt_vec--)     = tmp3 + tmp1;
+        *(pt_vecN_1++)  = tmp3 - tmp1;
+        tmp3  = fxp_mul32_Q29((*(pt_vec) + tmp0), *(pt_cos--));
+        tmp1 = *(pt_even--);
+        *(pt_vec--)     = tmp3 + tmp2;
+        *(pt_vecN_1++)  = tmp3 - tmp2;
+    }
+
+    for (i = 5; i != 0; i--)
+    {
+        tmp3  = fxp_mul32_Q31((*(pt_vec) - tmp0) << 1, *(pt_cos--));
+        tmp2 = *(pt_even--);
+        *(pt_vec--)     = tmp3 + tmp1;
+        *(pt_vecN_1++)  = tmp3 - tmp1;
+        tmp3  = fxp_mul32_Q31((*(pt_vec) + tmp0) << 1, *(pt_cos--));
+        tmp1 = *(pt_even--);
+        *(pt_vec--)     = tmp3 + tmp2;
+        *(pt_vecN_1++)  = tmp3 - tmp2;
+    }
+
+
+}
+
+#endif

media/libstagefright/codecs/aacdec/dst32.h

@@ -0,0 +1,69 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/dst32.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef DST32_H
+#define DST32_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+    extern const Int32 CosTable_16[];
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    void dst_32(Int32 vec[], Int32 scratch_mem[]);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* DST32_H */

media/libstagefright/codecs/aacdec/dst8.cpp

@@ -0,0 +1,179 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: dst8.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+    Int32 x             32-bit integer input length 8
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Implement discrete sine transform of lenght 8
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include "dst8.h"
+
+#include "fxp_mul32.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+#define Qfmt15(x)   (Int16)(x*((Int32)1<<15) + (x>=0?0.5F:-0.5F))
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+#define R_SHIFT     29
+#define Qfmt(x)   (Int32)(x*((Int32)1<<R_SHIFT) + (x>=0?0.5F:-0.5F))
+
+#define Qfmt31(x)   (Int32)(x*0x7FFFFFFF + (x>=0?0.5F:-0.5F))
+
+
+void dst_8(Int32 vec[])
+{
+
+    Int32 temp1;
+    Int32 temp2;
+    Int32 temp3;
+    Int32 temp4;
+    Int32 temp5;
+    Int32 temp6;
+    Int32 temp7;
+    Int32 tmp_a;
+    Int32 tmp_aa;
+    Int32 tmp_b;
+    Int32 tmp_bb;
+    Int32 tmp_c;
+    Int32 tmp_cc;
+    Int32 tmp_d;
+    Int32 tmp_dd;
+
+    temp1 = fxp_mul32_by_16(vec[1], Qfmt15(0.50979557910416F));         /* (1/(2*cos(  phi)));*/
+    temp2 = fxp_mul32_by_16(vec[2], Qfmt15(0.54119610014620F));         /* (1/(2*cos(2*phi)));*/
+    temp3 = fxp_mul32_by_16(vec[3], Qfmt15(0.60134488693505F));         /* (1/(2*cos(3*phi)));*/
+    temp5 = fxp_mul32_by_16(vec[5], Qfmt15(0.89997622313642F));         /* (1/(2*cos(5*phi)));*/
+    temp6 = fxp_mul32_by_16(vec[6] << 1, Qfmt15(0.65328148243819F));        /* (1/(2*cos(6*phi)));*/
+    temp7 = vec[7] + fxp_mul32_Q31(vec[7], Qfmt31(0.56291544774152F));          /* (1/(2*cos(7*phi)));*/
+
+    /*  even  */
+    tmp_a = fxp_mul32_Q31((temp2 + temp6) << 1, Qfmt31(0.70710678118655F));
+    tmp_b = (temp2 - temp6) + tmp_a;
+
+    temp4 = fxp_mul32_by_16(vec[4], Qfmt15(0.70710678118655F));
+    vec[0] =   tmp_a + temp4;
+    vec[1] =   tmp_b + temp4;
+    vec[2] =   tmp_b - temp4;
+    vec[3] =   tmp_a - temp4;
+
+
+    /* odd */
+
+    tmp_a  = fxp_mul32_by_16((temp1 + temp7) << 1, Qfmt15(0.54119610014620F));  /* (1/(2*cos(2*phi)));  */
+    tmp_aa = (temp1 - temp7);
+    tmp_bb = (temp5 - temp3);
+    temp5  = fxp_mul32_Q29((temp5 + temp3), Qfmt(1.30656296487638F));   /* (1/(2*cos(6*phi)));  */
+
+
+    tmp_c  = fxp_mul32_by_16((tmp_a + temp5) << 1, Qfmt15(0.70710678118655F));
+    tmp_cc =  tmp_a - temp5;
+
+    tmp_d  = fxp_mac32_by_16((tmp_aa - tmp_bb) << 1, Qfmt15(0.70710678118655F), tmp_c);
+    tmp_dd = (tmp_aa + tmp_bb);
+
+    tmp_dd +=  tmp_c;
+    tmp_a   =  tmp_d  + tmp_cc;
+    vec[5]  =  tmp_a  - vec[2];
+    vec[2] +=  tmp_a;
+
+    temp5   =  tmp_dd + tmp_cc;
+
+    vec[4]  =  temp5  - vec[3];
+    vec[3] +=  temp5;
+    vec[7]  =  tmp_c  - vec[0];
+    vec[0] +=  tmp_c;
+    vec[6]  =  tmp_d  - vec[1];
+    vec[1] +=  tmp_d;
+
+}
+
+
+#endif

media/libstagefright/codecs/aacdec/dst8.h

@@ -0,0 +1,68 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/dst8.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef DST8_H
+#define DST8_H
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES AND SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    void dst_8(Int32 vec[]);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* DST8_H */

media/libstagefright/codecs/aacdec/e_adif_const.h

@@ -0,0 +1,97 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_ADIF_Const.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for ADIF header related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_ADIF_CONST_H
+#define E_ADIF_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /*
+     * audio data interchange format header
+     */
+    LEN_ADIF_ID     = (32 / 8),
+    LEN_COPYRT_PRES = 1,
+    LEN_COPYRT_ID   = (72 / 8),
+    LEN_ORIG        = 1,
+    LEN_HOME        = 1,
+    LEN_BS_TYPE     = 1,
+    LEN_BIT_RATE    = 23,
+    LEN_NUM_PCE     = 4,
+    LEN_ADIF_BF     = 20
+
+} eADIF_Const;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_blockswitching.h

@@ -0,0 +1,112 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_BlockSwitching.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for BlockSwitching related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_BLOCK_SWITCHING_H
+#define E_BLOCK_SWITCHING_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /*
+     * block switching
+     */
+    LN          = 2048,
+    SN          = 256,
+    LN2         = LN / 2,
+    SN2         = SN / 2,
+    LN4         = LN / 4,
+    SN4         = SN / 4,
+    NSHORT      = LN / SN,
+    MAX_SBK     = NSHORT,
+    MAX_WIN     = MAX_SBK,
+
+    ONLY_LONG_WINDOW    = 0,
+    LONG_START_WINDOW,
+    EIGHT_SHORT_WINDOW,
+    LONG_STOP_WINDOW,
+    NUM_WIN_SEQ,
+
+    WLONG       = ONLY_LONG_WINDOW,
+    WSTART,
+    WSHORT,
+    WSTOP,
+
+    MAXBANDS        = 16 * NSHORT,  /* max number of scale factor bands */
+    MAXFAC      = 121,      /* maximum scale factor */
+    MIDFAC      = (MAXFAC - 1) / 2,
+    SF_OFFSET       = 100       /* global gain must be positive */
+} eBlockSwitching;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_coupling_mode.h

@@ -0,0 +1,88 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_coupling_mode.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_COUPLING_MODE_H
+#define E_COUPLING_MODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    COUPLING_OFF,
+    COUPLING_LEVEL,
+    COUPLING_BAL
+}
+COUPLING_MODE;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_elementid.h

@@ -0,0 +1,99 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Pathname: ./include/e_BLOCKTYPE.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for BlockType related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_ELEMENTID_H
+#define E_ELEMENTID_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /* sfb 40, coef 672, pred bw of 15.75 kHz at 48 kHz
+     * this is also the highest number of bins used
+     * by predictor for any sampling rate
+     */
+    MAX_PRED_SFB    = 40,   /* 48 kHz only, now obsolete */
+    MAX_PRED_BINS   = 672,
+
+    ID_SCE      = 0,
+    ID_CPE,
+    ID_CCE,
+    ID_LFE,
+    ID_DSE,
+    ID_PCE,
+    ID_FIL,
+    ID_END
+}
+ElementId;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_huffmanconst.h

@@ -0,0 +1,119 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_HuffmanConst.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for Huffman related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_HUFFMAN_CONST_H
+#define E_HUFFMAN_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /*
+     * specify huffman tables as signed (1) or unsigned (0)
+     */
+    HUF1SGN     = 1,
+    HUF2SGN     = 1,
+    HUF3SGN     = 0,
+    HUF4SGN     = 0,
+    HUF5SGN     = 1,
+    HUF6SGN     = 1,
+    HUF7SGN     = 0,
+    HUF8SGN     = 0,
+    HUF9SGN     = 0,
+    HUF10SGN        = 0,
+    HUF11SGN        = 0,
+
+    ZERO_HCB        = 0,
+    BY4BOOKS        = 4,
+    ESCBOOK     = 11,
+    NSPECBOOKS      = ESCBOOK + 1,
+    BOOKSCL     = NSPECBOOKS,
+    NBOOKS      = NSPECBOOKS + 1,
+    INTENSITY_HCB2  = 14,
+    INTENSITY_HCB   = 15,
+    NOISE_HCB       = 13,
+    NOISE_HCB2      = 113,
+
+    NOISE_PCM_BITS      = 9,
+    NOISE_PCM_OFFSET    = (1 << (NOISE_PCM_BITS - 1)),
+
+    NOISE_OFFSET        = 90,
+
+    LONG_SECT_BITS  = 5,
+    SHORT_SECT_BITS = 3
+} eHuffmanConst;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_infoinitconst.h

@@ -0,0 +1,96 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_infoinitConst.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for Infoinit related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_INFOINIT_CONST_H
+#define E_INFOINIT_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "chans.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /* block switch windows for single channels or channel pairs */
+    Winds   = Chans,
+
+    /* average channel block length, bytes */
+    Avjframe    = 341,
+
+    TEXP    = 128,      /* size of exp cache table */
+    MAX_IQ_TBL  = 128,      /* size of inv quant table */
+    MAXFFT  = LN4
+
+} infoinitConst;
+
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_invf_mode.h

@@ -0,0 +1,91 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_invf_mode.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_INVF_MODE_H
+#define E_INVF_MODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    INVF_OFF,
+    INVF_LOW_LEVEL,
+    INVF_MID_LEVEL,
+    INVF_HIGH_LEVEL,
+
+    INVF_NO_OVERRIDE
+}
+INVF_MODE;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_maskstatus.h

@@ -0,0 +1,91 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+   Pathname: ./include/e_MaskStatus.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file gives the enum of mask_present value used in getmask.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_MASKSTATUS_H
+#define E_MASKSTATUS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+enum
+{
+    MASK_NOT_PRESENT,
+    MASK_FROM_BITSTREAM,
+    MASK_ALL_FRAME,
+    MASK_ERROR
+};
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_mp4ff_const.h

@@ -0,0 +1,105 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: e_MP4FF_const.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file enums the constants used by MP4FF header
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_MP4FF_CONST_H
+#define E_MP4FF_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    LEN_OBJ_TYPE = 5,
+    LEN_SAMP_RATE_IDX = 4,
+    LEN_SAMP_RATE   = 24,
+    LEN_CHAN_CONFIG = 4,
+    LEN_SYNC_EXTENSION_TYPE = 11,
+    LEN_FRAME_LEN_FLAG = 1,
+    LEN_DEPEND_ON_CORE = 1,
+    LEN_CORE_DELAY = 14,
+    LEN_EXT_FLAG = 1,
+    LEN_EP_CONFIG = 2,
+    LEN_LAYER_NUM = 3,
+    LEN_SUB_FRAME = 5,
+    LEN_LAYER_LEN = 11,
+    LEN_SECT_RES_FLAG = 1,
+    LEN_SCF_RES_FLAG = 1,
+    LEN_SPEC_RES_FLAG = 1,
+    LEN_EXT_FLAG3 = 1
+} eMP4FF_const;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_progconfigconst.h

@@ -0,0 +1,110 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: e_ProgConfigConst.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for ProgConfig related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_PROG_CONFIG_CONST_H
+#define E_PROG_CONFIG_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    /*
+     * Program Configuration
+     */
+    Main_Profile    = 0,
+    LC_Profile      = 1,
+
+    Fs_48       = 3,
+    Fs_44       = 4,
+    Fs_32       = 5,
+
+    LEN_PROFILE     = 2,
+    LEN_SAMP_IDX    = 4,
+    LEN_NUM_ELE     = 4,
+    LEN_NUM_LFE     = 2,
+    LEN_NUM_DAT     = 3,
+    LEN_NUM_CCE     = 4,
+    LEN_MIX_PRES    = 1,
+    LEN_MMIX_IDX    = 2,
+    LEN_PSUR_ENAB   = 1,
+    LEN_ELE_IS_CPE  = 1,
+    LEN_IND_SW_CCE  = 1,
+    LEN_COMMENT_BYTES   = 8
+
+} eProgConfigConst;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_rawbitstreamconst.h

@@ -0,0 +1,130 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+   Pathname: e_RawBitstreamConst.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for the Raw Bitstream related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_RAW_BITSTREAM_CONST_H
+#define E_RAW_BITSTREAM_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    LEN_SE_ID       = 3,
+    LEN_TAG     = 4,
+    LEN_COM_WIN     = 1,
+    LEN_ICS_RESERV  = 1,
+    LEN_WIN_SEQ     = 2,
+    LEN_WIN_SH      = 1,
+    LEN_MAX_SFBL    = 6,
+    LEN_MAX_SFBS    = 4,
+    LEN_CB          = 4,
+    LEN_SCL_PCM     = 8,
+    LEN_PRED_PRES   = 1,
+    LEN_PRED_RST    = 1,
+    LEN_PRED_RSTGRP = 5,
+    LEN_PRED_ENAB   = 1,
+    LEN_MASK_PRES   = 2,
+    LEN_MASK        = 1,
+    LEN_PULSE_PRES  = 1,
+    LEN_TNS_PRES    = 1,
+    LEN_GAIN_PRES   = 1,
+
+    LEN_PULSE_NPULSE    = 2,
+    LEN_PULSE_ST_SFB    = 6,
+    LEN_PULSE_POFF      = 5,
+    LEN_PULSE_PAMP      = 4,
+    NUM_PULSE_LINES     = 4,
+    PULSE_OFFSET_AMP    = 4,
+
+    LEN_IND_CCE_FLG = 1,
+    LEN_NCC         = 3,
+    LEN_IS_CPE      = 1,
+    LEN_CC_LR       = 1,
+    LEN_CC_DOM      = 1,
+    LEN_CC_SGN      = 1,
+    LEN_CCH_GES     = 2,
+    LEN_CCH_CGP     = 1,
+
+    LEN_D_ALIGN     = 1,
+    LEN_D_CNT       = 8,
+    LEN_D_ESC       = 8,
+    LEN_F_CNT       = 4,
+    LEN_F_ESC       = 8,
+    LEN_BYTE        = 8,
+    LEN_PAD_DATA    = 8,
+
+    LEN_PC_COMM     = 9
+
+} eRawBitstreamConst;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_sbr_element_id.h

@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sbr_element_id.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SBR_ELEMENT_ID_H
+#define E_SBR_ELEMENT_ID_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    SBR_ID_SCE = 0,
+    SBR_ID_CPE
+}
+SBR_ELEMENT_ID;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_sbr_error.h

@@ -0,0 +1,106 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sbr_error.h
+ Funtions:
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SBR_ERROR_H
+#define E_SBR_ERROR_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define HANDLE_ERROR_INFO Int32
+#define noError 0
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+typedef enum
+{
+    SBRDEC_OK = 0,
+    SBRDEC_NOSYNCH,
+    SBRDEC_ILLEGAL_PROGRAM,
+    SBRDEC_ILLEGAL_TAG,
+    SBRDEC_ILLEGAL_CHN_CONFIG,
+    SBRDEC_ILLEGAL_SECTION,
+    SBRDEC_ILLEGAL_SCFACTORS,
+    SBRDEC_ILLEGAL_PULSE_DATA,
+    SBRDEC_MAIN_PROFILE_NOT_IMPLEMENTED,
+    SBRDEC_GC_NOT_IMPLEMENTED,
+    SBRDEC_ILLEGAL_PLUS_ELE_ID,
+    SBRDEC_CREATE_ERROR,
+    SBRDEC_NOT_INITIALIZED,
+    SBRDEC_TOO_MANY_SBR_ENVELOPES,
+    SBRDEC_INVALID_BITSTREAM
+}
+SBR_ERROR;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_sbr_header_status.h

@@ -0,0 +1,88 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sbr_header_status.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SBR_HEADER_STATUS_H
+#define E_SBR_HEADER_STATUS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    HEADER_OK,
+    HEADER_RESET,
+    HEADER_NOT_INITIALIZED
+}
+SBR_HEADER_STATUS;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_sbr_master_status.h

@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sbr_master_status.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SBR_MASTER_STATUS_H
+#define E_SBR_MASTER_STATUS_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    MASTER_OK,
+    MASTER_RESET
+}
+SBR_MASTER_STATUS;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_sbr_sync_state.h

@@ -0,0 +1,88 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sbr_sync_state.h
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SBR_SYNC_STATE_H
+#define E_SBR_SYNC_STATE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    SBR_NOT_INITIALIZED,
+    UPSAMPLING,
+    SBR_ACTIVE
+}
+SBR_SYNC_STATE;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_sr_mode.h

@@ -0,0 +1,88 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: e_sr_mode.h
+ Funtions:
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_SR_MODE_H
+#define E_SR_MODE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    SINGLE_RATE = 1,
+    UP_BY_2
+}
+SR_MODE;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/e_tmp4audioobjecttype.h

@@ -0,0 +1,118 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_tMP4AudioObjectType.h
+
+ This file contains enumerated types for MP4 Audio Object Types, as defined
+ in ISO/IEC 14496-3, AMMENDMENT 1 Dated 2000-09-15
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_TMP4AUDIOOBJECTTYPE_H
+#define E_TMP4AUDIOOBJECTTYPE_H
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    /*----------------------------------------------------------------------------
+    ; INCLUDES
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; MACROS
+    ; Define module specific macros here
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; DEFINES
+    ; Include all pre-processor statements here.
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; EXTERNAL VARIABLES REFERENCES
+    ; Declare variables used in this module but defined elsewhere
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; SIMPLE TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; ENUMERATED TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    typedef enum eMP4AudioObjectType
+    {
+        MP4AUDIO_NULL            =  0, /*                                       */
+        MP4AUDIO_AAC_MAIN        =  1, /*                                       */
+        MP4AUDIO_AAC_LC          =  2, /* LC = Low Complexity                   */
+        MP4AUDIO_AAC_SSR         =  3, /* SSR = Scalable Sampling Rate          */
+        MP4AUDIO_LTP             =  4, /* LTP = Long Term Prediction            */
+        MP4AUDIO_SBR             =  5, /* SBR = Spectral Band Replication       */
+        MP4AUDIO_AAC_SCALABLE    =  6, /* scales both bitrate and sampling rate */
+        MP4AUDIO_TWINVQ          =  7, /* low bit rate                          */
+        MP4AUDIO_CELP            =  8,
+        MP4AUDIO_HVXC            =  9,
+        /* 10 is reserved                        */
+        /* 11 is reserved                        */
+        MP4AUDIO_TTSI            = 12,
+        /* 13-16 are synthesis and MIDI types    */
+        MP4AUDIO_ER_AAC_LC       = 17, /*                                       */
+        /* 18 is reserved                        */
+        MP4AUDIO_ER_AAC_LTP      = 19, /*                                       */
+        MP4AUDIO_ER_AAC_SCALABLE = 20, /*                                       */
+        MP4AUDIO_ER_TWINVQ       = 21, /*                                       */
+        MP4AUDIO_ER_BSAC         = 22, /*                                       */
+        MP4AUDIO_ER_AAC_LD       = 23, /*                                       */
+        MP4AUDIO_ER_CELP         = 24, /*                                       */
+        MP4AUDIO_ER_HVXC         = 25, /*                                       */
+        MP4AUDIO_ER_HILN         = 26, /*                                       */
+        MP4AUDIO_PARAMETRIC      = 27, /*                                       */
+        MP4AUDIO_PS              = 29  /*  Explicit Parametric Stereo           */
+
+    } tMP4AudioObjectType;
+
+    /*----------------------------------------------------------------------------
+    ; STRUCTURES TYPEDEF'S
+    ----------------------------------------------------------------------------*/
+
+    /*----------------------------------------------------------------------------
+    ; GLOBAL FUNCTION DEFINITIONS
+    ; Function Prototype declaration
+    ----------------------------------------------------------------------------*/
+
+    /* Should not be any function declarations in this file */
+
+    /*----------------------------------------------------------------------------
+    ; END
+    ----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* E_TMP4AUDIOOBJECTTYPE_H */
+
+

media/libstagefright/codecs/aacdec/e_tns_const.h

@@ -0,0 +1,91 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+  Pathname: ./include/e_TNS_Const.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for TNS related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_TNS_CONST_H
+#define E_TNS_CONST_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    TNS_MAX_BANDS = 49,
+    TNS_MAX_ORDER = 20,
+    TNS_MAX_WIN   =  8,
+    TNS_MAX_FILT  =  3,
+    Q_SPEC        = 11,
+    Q_LPC         = 19
+
+} eTNS_Const;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_window_sequence.h

@@ -0,0 +1,90 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/e_WINDOW_SEQUENCE.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for Window Sequence related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_WINDOW_SEQUENCE_H
+#define E_WINDOW_SEQUENCE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    ONLY_LONG_SEQUENCE,
+    LONG_START_SEQUENCE,
+    EIGHT_SHORT_SEQUENCE,
+    LONG_STOP_SEQUENCE,
+    NUM_WINDOW_SEQUENCE,
+    ENSURE_WINDOW_SEQUENCE_INT_SIZE = 0x7FFFFF
+}
+WINDOW_SEQUENCE;
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/e_window_shape.h

@@ -0,0 +1,89 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: e_Window_shape.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ enum for Window Sequence related constants
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef E_WINDOW_SHAPE_H
+#define E_WINDOW_SHAPE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef enum
+{
+    SINE_WINDOW = 0,
+    KAISER_BESSEL_WINDOW,
+    NUM_WINDOW_SHAPES,
+    ENSURE_WINDOW_SHAPE_INT_SIZE = 0x7FFFFF
+}
+WINDOW_SHAPE;
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/esc_iquant_scaling.cpp

@@ -0,0 +1,789 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/esc_iquant_scaling.c
+ Funtions:  esc_iquant_scaling
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from esc_iquant_fxp.c code
+
+ Description:  Eliminated unused variables to avoid warnings, changed header
+
+ Who:                                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    quantSpec[] = array of quantized compressed spectral coefficients, of
+                  data type Int and length sfbWidth.
+
+    sfbWidth    = number of array elements in quantSpec and the output array
+                  coef, data type Int.
+
+    coef[]      = output array of uncompressed coefficients, stored in a
+                  variable Q format, depending on the maximum value found
+                  for the group, array of Int32, length sfbWdith to be
+                  overwritten.
+
+    QFormat     = the output Q format for the array coef[].
+
+
+    scale       = scaling factor after separating power of 2 factor out from
+                  0.25*(sfb_scale - 100), i.e., 0.25*sfb_scale.
+
+    maxInput    = maximum absolute value of quantSpec.
+
+ Local Stores/Buffers/Pointers Needed: None.
+
+ Global Stores/Buffers/Pointers Needed:
+    inverseQuantTable = lookup table of const integer values to the one third
+                power stored in Q27 format, in file iquant_table.c, const
+                array of UInt32, of size 1025.
+
+ Outputs: None
+
+ Pointers and Buffers Modified:
+    coef[] contents are overwritten with the uncompressed values from
+    quantSpec[]
+
+
+
+
+ Local Stores Modified: None.
+
+ Global Stores Modified: None.
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function performs the inverse quantization of the spectral coeficients
+ read from huffman decoding. It takes each input array value to the four
+ thirds power, then scales it according to the scaling factor input argument
+ ,and stores the result in the output array in a variable Q format
+ depending upon the maximum input value found.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function shall not have static or global variables.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 13818-7:1997 Titled "Information technology - Generic coding
+   of moving pictures and associated audio information - Part 7: Advanced
+   Audio Coding (AAC)", Section 10.3, "Decoding process", page 43.
+
+ (2) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    maxInput = 0;
+
+    FOR (i = sfbWidth - 1; i >= 0; i--)
+        x = quantSpec[i];
+
+        IF ( x >= 0)
+            absX = x;
+        ELSE
+            absX = -x;
+        ENDIF
+
+        coef[i] = absX;
+
+        IF (absX > maxInput)
+            maxInput = absX;
+        ENDIF
+    ENDFOR
+
+    IF (maxInput == 0)
+        *pQFormat = QTABLE;
+    ELSE
+        temp = inverseQuantTable[(maxInput >> ORDER) + 1];
+
+        temp += ((1 << (QTABLE))-1);
+
+        temp >>= (QTABLE-1);
+
+        temp *= maxInput;
+
+        binaryDigits = 0;
+        WHILE( temp != 0)
+            temp >>= 1;
+            binaryDigits++;
+        WEND
+
+        IF (binaryDigits < (SIGNED32BITS - QTABLE))
+            binaryDigits = SIGNED32BITS - QTABLE;
+        ENDIF
+
+        *pQFormat = SIGNED32BITS - binaryDigits;
+        shift = QTABLE - *pQFormat;
+
+        IF (maxInput < TABLESIZE)
+            FOR (i = sfbWidth - 1; i >= 0; i--)
+                x = quantSpec[i];
+
+                absX = coef[i];
+
+                tmp_coef = x * (inverseQuantTable[absX] >> shift);
+
+                b_low  = (tmp_coef & 0xFFFF);
+                b_high = (tmp_coef >> 16);
+
+                mult_low  = ( (UInt32) b_low * scale );
+                mult_high = ( (Int32) b_high * scale );
+
+                mult_low >>= 16;
+
+                coef[i]  = (Int32) (mult_high + mult_low);
+
+            ENDFOR
+        ELSE
+            FOR (i = sfbWidth; i >= 0 ; i--)
+                x    = quantSpec[i];
+                absX = coef[i];
+
+                IF (absX < TABLESIZE)
+                    tmp_coef = x * (inverseQuantTable[absX] >> shift);
+                ELSE
+                    index = absX >> ORDER;
+                    w1 = inverseQuantTable[index];
+
+                    approxOneThird = (w1 * FACTOR) >> shift;
+
+
+                    x1 = index * SPACING;
+                    w2 = inverseQuantTable[index+1];
+
+                    deltaOneThird = (w2 - w1) * (absX - x1);
+
+                    deltaOneThird >>= (shift + ORDER - 1);
+
+                    tmp_coef = x * (approxOneThird + deltaOneThird);
+
+                ENDIF
+
+                b_low  = (mult_high & 0xFFFF);
+                b_high = (mult_high >> 16);
+
+                mult_low  = ( (UInt32) b_low * scale );
+                mult_high = ( (Int32) b_high * scale );
+
+                mult_low >>= 16;
+
+                coef[i]  = (Int32) (mult_high + mult_low);
+
+            ENDFOR
+        ENDIF
+    ENDIF
+
+    RETURN
+
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "iquant_table.h"
+#include "esc_iquant_scaling.h"
+#include "aac_mem_funcs.h"         /* For pv_memset                         */
+
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+/*
+ * Read further on what order is.
+ * Note: If ORDER is not a multiple of 3, FACTOR is not an integer.
+ * Note: Portions of this function assume ORDER is 3, and so does the table
+ *       in iquant_table.c
+ */
+#define ORDER        (3)
+/*
+ * For input values > TABLESIZE, multiply by FACTOR to get x ^ (1/3)
+ * FACTOR = 2 ^ (ORDER/3)
+ */
+#define FACTOR       (2)
+
+/*
+ * This is one more than the range of expected inputs.
+ */
+#define INPUTRANGE   (8192)
+
+/*
+ * SPACING is 2 ^ ORDER, and is the spacing between points when in the
+ * interpolation range.
+ */
+#define SPACING      (1<<ORDER)
+
+/*
+ * The actual table size is one more than TABLESIZE, to allow for
+ * interpolation for numbers near 8191
+ */
+#define TABLESIZE    (INPUTRANGE/SPACING)
+
+/*
+ * Format the table is stored in.
+ */
+#define QTABLE       (27)
+
+/*
+ * Number of bits for data in a signed 32 bit integer.
+ */
+#define SIGNED32BITS  (31)
+
+/*
+ * Round up value for intermediate values obtained from the table
+ */
+#define ROUND_UP (( ((UInt32) 1) << (QTABLE) )-1)
+
+#define     MASK_LOW16  0xffff
+#define     UPPER16     16
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+ * Processing in this function is performed in these steps:
+ *
+ * 1) Find the overall Q format for the entire group of inputs. This consists
+ *    of:
+ *    a) Finding the maximum input
+ *    b) estimate the maximum output
+ *    c) Using the table, get max ^ (4/3), taking into account the table is
+ *       in q format.
+ * 2) For each array element, see if the value is directly inside the table.
+ *    a) If yes, just multiply by table value by itself, then shift as
+ *       appropriate.
+ *    b) If no, get an approximation (described below) for x ^ (1/3) by linearly
+ *       interpolating using lower values in the table, then multiply by a
+ *       correction factor, then multiply by x (see below).
+ *
+ * It more accurate to interpolate x ^ (1/3) then x ^ (4/3), so that is stored
+ * in the lookup table. For values not in the table, interpolation is used:
+ *
+ *  We want y = x ^ (4/3) = x * (x ^ (1/3))
+ *
+ *  Let     x = w * (2 ^ m)  where m is a constant, = ORDER
+ *
+ *  then     x ^ (1/3) = w ^ (1/3) * (2 ^ (m/3))
+ *
+ *  w is most likely not an integer, so an interpolation with floor(w) and
+ *  ceil(w) can be performed to approximate w ^ (1/3) by getting values out of
+ *  the table. Then to get x ^ (1/3), multiply by FACTOR. If m = 0, 3, 6,
+ *  then FACTOR is a simple power of 2, so a shift can do the job.
+ *
+ *  The actual code employs some more tricks to speed things up, and because
+ *  the table is stored in Q format.
+ *
+ *  Rather than saving the sign of each input, the unsigned value of
+ *  abs(x) ^ (1/3) is multiplied by the signed input value.
+ */
+
+
+
+#if ( defined(_ARM) || defined(_ARM_V4))
+
+/*
+ *  Absolute value for 16 bit-numbers
+ */
+__inline Int32 abs2(Int32 x)
+{
+    Int32 z;
+    /*
+        z = x - (x<0);
+        x = z ^ sign(z)
+     */
+    __asm
+    {
+        sub  z, x, x, lsr #31
+        eor  x, z, z, asr #31
+    }
+    return (x);
+}
+
+
+#define pv_abs(x)   abs2(x)
+
+
+#elif (defined(PV_ARM_GCC_V5)||defined(PV_ARM_GCC_V4))
+
+/*
+ *  Absolute value for 16 bit-numbers
+ */
+__inline Int32 abs2(Int32 x)
+{
+    register Int32 z;
+    register Int32 y;
+    register Int32 ra = x;
+    asm volatile(
+        "sub  %0, %2, %2, lsr #31\n\t"
+        "eor  %1, %0, %0, asr #31"
+    : "=&r*i"(z),
+        "=&r*i"(y)
+                : "r"(ra));
+
+    return (y);
+}
+
+#define pv_abs(x)   abs2(x)
+
+
+#else
+
+#define pv_abs(x)   ((x) > 0)? (x) : (-x)
+
+#endif
+
+
+
+
+
+void esc_iquant_scaling(
+    const Int16     quantSpec[],
+    Int32         coef[],
+    const Int     sfbWidth,
+    Int const      QFormat,
+    UInt16        scale,
+    Int           maxInput)
+{
+    Int    i;
+    Int    x;
+    Int    y;
+    Int    index;
+    Int    shift;
+    UInt   absX;
+    UInt32 w1, w2;
+    UInt32 deltaOneThird;
+    UInt32 x1;
+    UInt32 approxOneThird;
+    Int32   mult_high;
+
+
+#if ( defined(_ARM) || defined(_ARM_V4))
+
+    {
+        Int32   *temp;
+        Int32   R12, R11, R10, R9;
+
+        deltaOneThird = sizeof(Int32) * sfbWidth;
+        temp = coef;
+
+        // from standard library call for __rt_memset
+        __asm
+        {
+            MOV     R12, #0x0
+            MOV     R11, #0x0
+            MOV     R10, #0x0
+            MOV     R9, #0x0
+            SUBS    deltaOneThird, deltaOneThird, #0x20
+loop:
+            STMCSIA temp!, {R12, R11, R10, R9}
+            STMCSIA temp!, {R12, R11, R10, R9}
+            SUBCSS  deltaOneThird, deltaOneThird, #0x20
+            BCS     loop
+
+            MOVS    deltaOneThird, deltaOneThird, LSL #28
+            STMCSIA temp!, {R12, R11, R10, R9}
+            STMMIIA temp!, {R12, R11}
+        }
+    }
+
+#else
+    pv_memset(coef, 0, sizeof(Int32) * sfbWidth);
+#endif
+
+    if (maxInput > 0)
+    {
+
+        shift = QTABLE - QFormat;
+
+        if (scale != 0)
+        {
+            if (maxInput < TABLESIZE)
+            {
+
+                for (i = sfbWidth - 1; i >= 0; i -= 4)
+                {
+                    x = quantSpec[i];
+                    y = quantSpec[i-1];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        mult_high = (x * (inverseQuantTable[absX] >> shift));
+                        coef[i] = fxp_mul32_by_16(mult_high, scale) << 1;
+                    }
+
+                    if (y)
+                    {
+                        absX = pv_abs(y);
+                        mult_high = y * (inverseQuantTable[absX] >> shift);
+                        coef[i-1] = fxp_mul32_by_16(mult_high, scale) << 1;
+                    }
+
+                    x = quantSpec[i-2];
+                    y = quantSpec[i-3];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        mult_high = x * (inverseQuantTable[absX] >> shift);
+                        coef[i-2] = fxp_mul32_by_16(mult_high, scale) << 1;
+                    }
+
+                    if (y)
+                    {
+                        absX = pv_abs(y);
+                        mult_high = y * (inverseQuantTable[absX] >> shift);
+                        coef[i-3] = fxp_mul32_by_16(mult_high, scale) << 1;
+                    }
+                } /* end for (i = sfbWidth - 1; i >= 0; i--) */
+
+            } /* end if (maxInput < TABLESIZE)*/
+
+            else /* maxInput >= TABLESIZE) */
+            {
+                for (i = sfbWidth - 1; i >= 0; i -= 4)
+                {
+                    x    = quantSpec[i];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i] = fxp_mul32_by_16(mult_high, scale) << 1;
+
+                        }
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i] = fxp_mul32_by_16(mult_high, scale) << 1;
+
+                        }
+                    } /* if(x) */
+
+
+                    x    = quantSpec[i-1];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = (x * (inverseQuantTable[absX] >> shift));
+                            coef[i-1] = fxp_mul32_by_16(mult_high, scale) << 1;
+
+                        }
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-1] = fxp_mul32_by_16(mult_high, scale) << 1;
+                        }
+                    } /* if(x) */
+
+                    x    = quantSpec[i-2];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i-2] = fxp_mul32_by_16(mult_high, scale) << 1;
+                        }
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-2] = fxp_mul32_by_16(mult_high, scale) << 1;
+                        }
+                    } /* if(x) */
+
+                    x    = quantSpec[i-3];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i-3] = fxp_mul32_by_16(mult_high, scale) << 1;
+
+                        }
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-3] = fxp_mul32_by_16(mult_high, scale) << 1;
+
+                        }
+                    } /* if(x) */
+
+                }  /* end for (i = sfbWidth - 1; i >= 0; i--) */
+            } /* end else for if (maxInput < TABLESIZE)*/
+        }
+        else /* scale == 0 */
+        {
+            if (maxInput < TABLESIZE)
+            {
+                for (i = sfbWidth - 1; i >= 0; i -= 4)
+                {
+                    x = quantSpec[i];
+                    y = quantSpec[i-1];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        mult_high = x * (inverseQuantTable[absX] >> shift);
+                        coef[i] = mult_high >> 1;
+                    }
+
+                    if (y)
+                    {
+                        absX = pv_abs(y);
+                        mult_high = y * (inverseQuantTable[absX] >> shift);
+                        coef[i-1] = mult_high >> 1;
+                    }
+
+                    x = quantSpec[i-2];
+                    y = quantSpec[i-3];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        mult_high = x * (inverseQuantTable[absX] >> shift);
+                        coef[i-2] = mult_high >> 1;
+                    }
+
+                    if (y)
+                    {
+                        absX = pv_abs(y);
+                        mult_high = y * (inverseQuantTable[absX] >> shift);
+                        coef[i-3] = mult_high >> 1;
+                    }
+                }
+
+            } /* end if (maxInput < TABLESIZE)*/
+
+            else /* maxInput >= TABLESIZE) */
+            {
+                for (i = sfbWidth - 1; i >= 0; i -= 4)
+                {
+                    x    = quantSpec[i];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i] = (mult_high >> 1);
+                        } /* end if (absX < TABLESIZE) */
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i] = (mult_high >> 1);
+                        }
+                    } /* if(x) */
+
+                    x    = quantSpec[i-1];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i-1] = (mult_high >> 1);
+                        } /* end if (absX < TABLESIZE) */
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-1] = (mult_high >> 1);
+                        }
+                    } /* if(x) */
+
+                    x    = quantSpec[i-2];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i-2] = (mult_high >> 1);
+                        } /* end if (absX < TABLESIZE) */
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-2] = (mult_high >> 1);
+                        }
+                    } /* if(x) */
+
+                    x    = quantSpec[i-3];
+                    if (x)
+                    {
+                        absX = pv_abs(x);
+                        if (absX < TABLESIZE)
+                        {
+                            mult_high = x * (inverseQuantTable[absX] >> shift);
+                            coef[i-3] = (mult_high >> 1);
+                        } /* end if (absX < TABLESIZE) */
+                        else
+                        {
+                            index = absX >> ORDER;
+                            w1 = inverseQuantTable[index];
+                            w2 = inverseQuantTable[index+1];
+                            approxOneThird = (w1 * FACTOR) >> shift;
+                            x1 = index << ORDER;
+                            deltaOneThird = (w2 - w1) * (absX - x1);
+                            deltaOneThird >>= (shift + 2);
+                            mult_high = x * (approxOneThird + deltaOneThird);
+                            coef[i-3] = (mult_high >> 1);
+                        }
+
+                    } /* if(x) */
+
+                }  /* end for (i = sfbWidth - 1; i >= 0; i--) */
+
+            } /* end else for if (maxInput < TABLESIZE)*/
+
+        } /* end else for if(scale!=0) */
+
+    }  /* end else for if(maxInput == 0) */
+
+} /* end esc_iquant_fxp */
+
+

media/libstagefright/codecs/aacdec/esc_iquant_scaling.h

@@ -0,0 +1,102 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/esc_iquant_scaling.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for esc_iquant_scaling.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef ESC_IQUANT_SCALING_H
+#define ESC_IQUANT_SCALING_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+    void esc_iquant_scaling(
+        const Int16   quantSpec[],
+        Int32       coef[],
+        const Int   sfbWidth,
+        Int  const pQFormat,
+        UInt16      scale,
+        Int           maxInput);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif /* ESC_IQUANT_SCALING_H */
+
+

media/libstagefright/codecs/aacdec/extractframeinfo.cpp

@@ -0,0 +1,487 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+  Filename: extractframeInfo.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Arguments:   hBitBuf      - bitbuffer handle
+              v_frame_info - pointer to memorylocation where the frame-info will
+                             be stored.
+
+ Return:     none.
+
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+Extracts a frame_info vector from control data read from the bitstream.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+SC 29 Software Copyright Licencing Disclaimer:
+
+This software module was originally developed by
+  Coding Technologies
+
+and edited by
+  -
+
+in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3
+standards for reference purposes and its performance may not have been
+optimized. This software module is an implementation of one or more tools as
+specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards.
+ISO/IEC gives users free license to this software module or modifications
+thereof for use in products claiming conformance to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International
+Standards. ISO/IEC gives users the same free license to this software module or
+modifications thereof for research purposes and further ISO/IEC standardisation.
+Those intending to use this software module in products are advised that its
+use may infringe existing patents. ISO/IEC have no liability for use of this
+software module or modifications thereof. Copyright is not released for
+products that do not conform to audiovisual and image-coding related ITU
+Recommendations and/or ISO/IEC International Standards.
+The original developer retains full right to modify and use the code for its
+own purpose, assign or donate the code to a third party and to inhibit third
+parties from using the code for products that do not conform to audiovisual and
+image-coding related ITU Recommendations and/or ISO/IEC International Standards.
+This copyright notice must be included in all copies or derivative works.
+Copyright (c) ISO/IEC 2002.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#ifdef AAC_PLUS
+
+
+#include    "extractframeinfo.h"
+#include    "buf_getbits.h"
+#include    "aac_mem_funcs.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*
+ *  (int) ceil (log (bs_num_env + 1) / log (2))
+ *  ceil(log([0:5]+1)/log(2))
+ */
+
+const Int32 bs_pointer_bits_tbl[MAX_ENVELOPES + 1] = { 0, 1, 2, 2, 3, 3};
+
+/*
+ *  (int)((float)numTimeSlots/bs_num_env + 0.5f)
+ *  floor(16./[0:5] + 0.5)
+ */
+
+const Int32 T_16_ov_bs_num_env_tbl[MAX_ENVELOPES + 1] = { 2147483647, 16, 8,
+        5,  4, 3
+                                                        };
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+SBR_ERROR extractFrameInfo(BIT_BUFFER     * hBitBuf,
+                           SBR_FRAME_DATA * h_frame_data)
+{
+
+    Int32 absBordLead = 0;
+    Int32 nRelLead = 0;
+    Int32 nRelTrail = 0;
+    Int32 bs_num_env = 0;
+    Int32 bs_num_rel = 0;
+    Int32 bs_var_bord = 0;
+    Int32 bs_var_bord_0 = 0;
+    Int32 bs_var_bord_1 = 0;
+    Int32 bs_pointer = 0;
+    Int32 bs_pointer_bits;
+    Int32 frameClass;
+    Int32 temp;
+    Int32 env;
+    Int32 k;
+    Int32 bs_num_rel_0 = 0;
+    Int32 bs_num_rel_1 = 0;
+    Int32 absBordTrail = 0;
+    Int32 middleBorder = 0;
+    Int32 bs_num_noise;
+    Int32 lA = 0;
+
+    Int32 tE[MAX_ENVELOPES + 1];
+    Int32 tQ[2 + 1];
+    Int32 f[MAX_ENVELOPES + 1];
+    Int32 bs_rel_bord[3];
+    Int32 bs_rel_bord_0[3];
+    Int32 bs_rel_bord_1[3];
+    Int32 relBordLead[3];
+    Int32 relBordTrail[3];
+
+
+    Int32 *v_frame_info = h_frame_data->frameInfo;
+
+    SBR_ERROR err =  SBRDEC_OK;
+
+
+    /*
+     * First read from the bitstream.
+     */
+
+    /* Read frame class */
+    h_frame_data->frameClass = frameClass = buf_getbits(hBitBuf, SBR_CLA_BITS);
+
+
+    switch (frameClass)
+    {
+
+        case FIXFIX:
+            temp = buf_getbits(hBitBuf, SBR_ENV_BITS);   /* 2 bits */
+
+            bs_num_env = 1 << temp;
+
+
+            f[0] = buf_getbits(hBitBuf, SBR_RES_BITS);   /* 1 bit */
+
+            for (env = 1; env < bs_num_env; env++)
+            {
+                f[env] = f[0];
+            }
+
+            nRelLead     = bs_num_env - 1;
+            absBordTrail  = 16;
+
+
+            break;
+
+        case FIXVAR:
+            bs_var_bord = buf_getbits(hBitBuf, SBR_ABS_BITS);   /* 2 bits */
+            bs_num_rel  = buf_getbits(hBitBuf, SBR_NUM_BITS);   /* 2 bits */
+            bs_num_env  = bs_num_rel + 1;
+
+            for (k = 0; k < bs_num_env - 1; k++)
+            {
+                bs_rel_bord[k] = (buf_getbits(hBitBuf, SBR_REL_BITS) + 1) << 1;
+            }
+
+            bs_pointer_bits = bs_pointer_bits_tbl[bs_num_env];
+
+            bs_pointer = buf_getbits(hBitBuf, bs_pointer_bits);
+
+            for (env = 0; env < bs_num_env; env++)
+            {                                                    /* 1 bit */
+                f[bs_num_env - 1 - env] = buf_getbits(hBitBuf, SBR_RES_BITS);
+            }
+
+            absBordTrail  = 16 + bs_var_bord;
+            nRelTrail     = bs_num_rel;
+
+            break;
+
+        case VARFIX:
+            bs_var_bord = buf_getbits(hBitBuf, SBR_ABS_BITS);   /* 2 bits */
+            bs_num_rel  = buf_getbits(hBitBuf, SBR_NUM_BITS);   /* 2 bits */
+            bs_num_env  = bs_num_rel + 1;
+
+            for (k = 0; k < bs_num_env - 1; k++)
+            {
+                bs_rel_bord[k] = (buf_getbits(hBitBuf, SBR_REL_BITS) + 1) << 1;
+            }
+
+            bs_pointer_bits = bs_pointer_bits_tbl[bs_num_env];
+
+            bs_pointer = buf_getbits(hBitBuf, bs_pointer_bits);
+
+            for (env = 0; env < bs_num_env; env++)
+            {                                  /* 1 bit */
+                f[env] = buf_getbits(hBitBuf, SBR_RES_BITS);
+            }
+
+            absBordTrail = 16;
+            absBordLead  = bs_var_bord;
+            nRelLead     = bs_num_rel;
+
+            break;
+
+        case VARVAR:
+            bs_var_bord_0 = buf_getbits(hBitBuf, SBR_ABS_BITS);   /* 2 bits */
+            bs_var_bord_1 = buf_getbits(hBitBuf, SBR_ABS_BITS);
+            bs_num_rel_0  = buf_getbits(hBitBuf, SBR_NUM_BITS);   /* 2 bits */
+            bs_num_rel_1  = buf_getbits(hBitBuf, SBR_NUM_BITS);
+
+            bs_num_env = bs_num_rel_0 + bs_num_rel_1 + 1;
+
+            for (k = 0; k < bs_num_rel_0; k++)
+            {                                                 /* 2 bits */
+                bs_rel_bord_0[k] = (buf_getbits(hBitBuf, SBR_REL_BITS) + 1) << 1;
+            }
+
+            for (k = 0; k < bs_num_rel_1; k++)
+            {                                                 /* 2 bits */
+                bs_rel_bord_1[k] = (buf_getbits(hBitBuf, SBR_REL_BITS) + 1) << 1;
+            }
+
+
+            bs_pointer_bits = bs_pointer_bits_tbl[bs_num_env];
+
+            bs_pointer = buf_getbits(hBitBuf, bs_pointer_bits);
+
+            for (env = 0; env < bs_num_env; env++)
+            {                                  /* 1 bit */
+                f[env] = buf_getbits(hBitBuf, SBR_RES_BITS);
+            }
+
+            absBordLead   = bs_var_bord_0;
+            absBordTrail  = 16 + bs_var_bord_1;
+            nRelLead      = bs_num_rel_0;
+            nRelTrail     = bs_num_rel_1;
+
+            break;
+
+    };
+
+
+    /*
+     * Calculate the framing.
+     */
+
+
+    switch (frameClass)
+    {
+        case FIXFIX:
+            for (k = 0; k < nRelLead; k++)
+            {
+                relBordLead[k] = T_16_ov_bs_num_env_tbl[bs_num_env];
+            }
+            break;
+        case VARFIX:
+            for (k = 0; k < nRelLead; k++)
+            {
+                relBordLead[k] = bs_rel_bord[k];
+            }
+            break;
+        case VARVAR:
+            for (k = 0; k < nRelLead; k++)
+            {
+                relBordLead[k] = bs_rel_bord_0[k];
+            }
+            for (k = 0; k < nRelTrail; k++)
+            {
+                relBordTrail[k] = bs_rel_bord_1[k];
+            }
+            break;
+        case FIXVAR:
+            for (k = 0; k < nRelTrail; k++)
+            {
+                relBordTrail[k] = bs_rel_bord[k];
+            }
+            break;
+    }
+
+
+    tE[0]          = absBordLead;
+    tE[bs_num_env] = absBordTrail;
+
+    for (env = 1; env <= nRelLead; env++)
+    {
+        tE[env] = absBordLead;
+        for (k = 0; k <= env - 1; k++)
+        {
+            tE[env] += relBordLead[k];
+        }
+    }
+
+    for (env = nRelLead + 1; env < bs_num_env; env++)
+    {
+        tE[env] = absBordTrail;
+        for (k = 0; k <= bs_num_env - env - 1; k++)
+        {
+            tE[env] -= relBordTrail[k];
+        }
+    }
+
+
+
+    switch (frameClass)
+    {
+        case  FIXFIX:
+            middleBorder = bs_num_env >> 1;
+            break;
+        case VARFIX:
+            switch (bs_pointer)
+            {
+                case 0:
+                    middleBorder = 1;
+                    break;
+                case 1:
+                    middleBorder = bs_num_env - 1;
+                    break;
+                default:
+                    middleBorder = bs_pointer - 1;
+                    break;
+            };
+            break;
+        case FIXVAR:
+        case VARVAR:
+            switch (bs_pointer)
+            {
+                case 0:
+                case 1:
+                    middleBorder = bs_num_env - 1;
+                    break;
+                default:
+                    middleBorder = bs_num_env + 1 - bs_pointer;
+                    break;
+            };
+            break;
+    };
+
+
+    tQ[0] = tE[0];
+    if (bs_num_env > 1)
+    {
+        tQ[1] = tE[middleBorder];
+        tQ[2] = tE[bs_num_env];
+        bs_num_noise = 2;
+    }
+    else
+    {
+        tQ[1] = tE[bs_num_env];
+        bs_num_noise = 1;
+    }
+
+    /*
+     *  Check consistency on freq bands
+     */
+
+    if ((tE[bs_num_env] < tE[0]) || (tE[0] < 0))
+    {
+        err = SBRDEC_INVALID_BITSTREAM;
+    }
+
+
+    switch (frameClass)
+    {
+        case  FIXFIX:
+            lA = -1;
+            break;
+        case VARFIX:
+            switch (bs_pointer)
+            {
+                case 0:
+                case 1:
+                    lA = -1;
+                    break;
+                default:
+                    lA = bs_pointer - 1;
+                    break;
+            };
+            break;
+        case FIXVAR:
+        case VARVAR:
+            switch (bs_pointer)
+            {
+                case 0:
+                    lA = - 1;
+                    break;
+                default:
+                    lA = bs_num_env + 1 - bs_pointer;
+                    break;
+            };
+            break;
+    };
+
+    /*
+     * Build the frameInfo vector...
+     */
+
+    v_frame_info[0] = bs_num_env;   /* Number of envelopes*/
+    pv_memcpy(v_frame_info + 1, tE, (bs_num_env + 1)*sizeof(Int32));    /* time borders*/
+    /* frequency resolution */
+    pv_memcpy(v_frame_info + 1 + bs_num_env + 1, f, bs_num_env*sizeof(Int32));
+
+    temp = (1 + bs_num_env) << 1;
+    v_frame_info[temp] = lA;                     /* transient envelope*/
+    v_frame_info[temp + 1] = bs_num_noise;       /* Number of noise envelopes */
+    /* noise borders */
+    pv_memcpy(v_frame_info + temp + 2, tQ, (bs_num_noise + 1)*sizeof(Int32));
+
+
+    return (err);
+
+}
+
+
+
+
+
+
+#endif
+

media/libstagefright/codecs/aacdec/extractframeinfo.h

@@ -0,0 +1,96 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Filename: extractFrameInfo.h
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+
+----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef EXTRACTFRAMEINFO_H
+#define EXTRACTFRAMEINFO_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "s_bit_buffer.h"
+#include    "s_sbr_frame_data.h"
+#include    "e_sbr_error.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+typedef Int32 FRAME_INFO[LENGTH_FRAME_INFO];
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    SBR_ERROR extractFrameInfo(BIT_BUFFER     * hBitBuf,
+    SBR_FRAME_DATA * h_frame_data);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/fft_rx4.h

@@ -0,0 +1,110 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/fft_rx4.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+        (1) modified definition of w_64rx4 from Int to Int16
+
+ Who:                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for functions fft_rx4()
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef FFT_RX4_H
+#define FFT_RX4_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define     FFT_RX4_LONG                256
+#define     ONE_FOURTH_FFT_RX4_LONG     ((FFT_RX4_LONG)>>2)
+#define     FFT_RX4_SHORT               64
+#define     ONE_FOURTH_FFT_RX4_SHORT    ((FFT_RX4_SHORT)>>2)
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+extern const Int16 w_64rx4[];
+extern const Int32 W_64rx4[];
+extern const Int32 W_256rx4[];
+extern const Int32 w_512rx2[];
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+    void fft_rx4_long(
+        Int32      Data[],
+        Int32      *peak_value);
+
+    Int fft_rx4_short(
+        Int32      Data[],
+        Int32      *peak_value);
+
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* FFT_RX4_H */

media/libstagefright/codecs/aacdec/fft_rx4_long.cpp

@@ -0,0 +1,428 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/fft_rx4_long.c
+ Funtions: fft_rx4_long
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:
+            (1) Eliminated search for max in the main loop.
+            (2) Reduced precision on w_256rx4 from Q15 to Q10
+
+ Description:
+            (1) Created function fft_rx4_long_no_max to overcome LTP problem.
+
+ Description:
+            (1) Modified shift so the accumulation growths faster than the
+                downshift, so now the input can be as high as 1.0 and saturation
+                will not occurre. The accumulation times the Q10 format will
+                never exceed 31 bits. This increases precision
+            (2) Eliminated unneeded data moves, used before for max search.
+            (3) Eliminated function fft_rx4_long_no_max.
+
+ Description:
+            (1) Added comment to explain max search elimination and
+                Q format during multiplications
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    Data       =  Input complex vector, arranged in the following order:
+                  real, imag, real, imag...
+                  This is a complex vector whose elements (real and Imag) are
+                  Int32.
+                  type Int32 *
+
+    peak_value =  Input,  peak value of the input vector
+                  Output,  peak value of the resulting vector
+                  type Int32 *
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    calculation are done in-place and returned in Data
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Fast Fourier Transform, radix 4 with Decimation in Frequency and block
+    floating point arithmetic.
+    The radix-4 FFT  simply divides the FFT into four smaller FFTs. Each of
+    the smaller FFTs is then further divided into smaller ones and so on.
+    It consists of log 4 N stages and each stage consists of N/4 dragonflies.
+
+    An FFT is nothing but a bundle of multiplications and summations which
+    may overflow during calculations.
+
+
+    This routine uses a scheme to test and scale the result output from
+    each FFT stage in order to fix the accumulation overflow.
+
+    The Input Data should be in Q13 format to get the highest precision.
+    At the end of each dragonfly calculation, a test for possible bit growth
+    is made, if bit growth is possible the Data is scale down back to Q13.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+    This function should provide a fixed point FFT for an input array
+    of size 256.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+    [1] Advance Digital Signal Processing, J. Proakis, C. Rader, F. Ling,
+        C. Nikias, Macmillan Pub. Co.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+   MODIFY( x[] )
+   RETURN( exponent )
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+#include "fft_rx4.h"
+
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+
+void fft_rx4_long(
+    Int32      Data[],
+    Int32      *peak_value)
+
+{
+    Int     n1;
+    Int     n2;
+    Int     j;
+    Int     k;
+    Int     i;
+
+    Int32   t1;
+    Int32   t2;
+    Int32   r1;
+    Int32   r2;
+    Int32   r3;
+    Int32   r4;
+    Int32   s1;
+    Int32   s2;
+    Int32   s3;
+    Int32   *pData1;
+    Int32   *pData2;
+    Int32   *pData3;
+    Int32   *pData4;
+    Int32   temp1;
+    Int32   temp2;
+    Int32   temp3;
+    Int32   temp4;
+    Int32   max;
+
+    Int32   exp_jw1;
+    Int32   exp_jw2;
+    Int32   exp_jw3;
+
+
+
+    const Int32  *pw = W_256rx4;
+
+    n2 = FFT_RX4_LONG;
+
+    for (k = FFT_RX4_LONG; k > 4; k >>= 2)
+    {
+
+        n1 = n2;
+        n2 >>= 2;
+
+        for (i = 0; i < FFT_RX4_LONG; i += n1)
+        {
+            pData1 = &Data[ i<<1];
+            pData2 = pData1 + n1;
+
+            temp1   = *pData1;
+            temp2   = *pData2;
+
+            r1      = temp1 + temp2;
+            r2      = temp1 - temp2;
+
+            pData3 = pData1 + (n1 >> 1);
+            pData4 = pData3 + n1;
+            temp3   = *pData3++;
+            temp4   = *pData4++;
+
+            t1      = temp3 + temp4;
+
+            *(pData1++) = (r1 + t1);
+            t2      = temp3 - temp4;
+            *(pData2++) = (r1 - t1);
+
+            temp1   = *pData1;
+            temp2   = *pData2;
+
+            s1      = temp1 + temp2;
+            temp3   = *pData3;
+            s2      = temp1 - temp2;
+            temp4   = *pData4;
+            *pData3--  = (s2 - t2);
+            *pData4--  = (s2 + t2);
+
+            t1      = temp3 + temp4;
+
+            *pData1    = (s1 + t1);
+            *pData2    = (s1 - t1);
+
+            r1      = temp3 - temp4;
+
+            *pData4    = (r2 - r1);
+            *pData3    = (r2 + r1);
+
+        }  /* i */
+
+
+
+        for (j = 1; j < n2; j++)
+        {
+
+            exp_jw1 = (*pw++);
+            exp_jw2 = (*pw++);
+            exp_jw3 = (*pw++);
+
+
+            for (i = j; i < FFT_RX4_LONG; i += n1)
+            {
+                pData1 = &Data[ i<<1];
+                pData2 = pData1 + n1;
+
+                temp1   = *pData1;
+                temp2   = *pData2++;
+
+                r1      = temp1 + temp2;
+                r2      = temp1 - temp2;
+
+                pData3 = pData1 + (n1 >> 1);
+                pData4 = pData3 + n1;
+                temp3   = *pData3++;
+                temp4   = *pData4++;
+
+                r3      = temp3 + temp4;
+                r4      = temp3 - temp4;
+
+                *(pData1++) = (r1 + r3);
+                r1          = (r1 - r3) << 1;
+
+                temp2   = *pData2;
+                temp1   = *pData1;
+
+                s1      = temp1 + temp2;
+                s2      = temp1 - temp2;
+                s3      = (s2 + r4) << 1;
+                s2      = (s2 - r4) << 1;
+
+                temp3   = *pData3;
+                temp4   = *pData4;
+
+                t1      = temp3 + temp4;
+                t2      = temp3 - temp4;
+
+                *pData1  = (s1 + t1);
+                s1       = (s1 - t1) << 1;
+
+                *pData2--  = cmplx_mul32_by_16(s1, -r1, exp_jw2);
+                r3      = (r2 - t2) << 1;
+                *pData2    = cmplx_mul32_by_16(r1,  s1, exp_jw2);
+
+                r2      = (r2 + t2) << 1;
+
+                *pData3--  = cmplx_mul32_by_16(s2, -r2, exp_jw1);
+                *pData3    = cmplx_mul32_by_16(r2,  s2, exp_jw1);
+
+                *pData4--  = cmplx_mul32_by_16(s3, -r3, exp_jw3);
+                *pData4    = cmplx_mul32_by_16(r3,  s3, exp_jw3);
+
+            }  /* i */
+
+        }  /*  j */
+
+    } /* k */
+
+
+    max = 0;
+
+    pData1 = Data - 7;
+
+
+    for (i = ONE_FOURTH_FFT_RX4_LONG; i != 0 ; i--)
+    {
+        pData1 += 7;
+        pData2 = pData1 + 4;
+
+
+        temp1   = *pData1;
+        temp2   = *pData2++;
+
+        r1      = temp1 + temp2;
+        r2      = temp1 - temp2;
+
+        pData3 = pData1 + 2;
+        pData4 = pData1 + 6;
+        temp1   = *pData3++;
+        temp2   = *pData4++;
+
+        t1      = temp1 + temp2;
+        t2      = temp1 - temp2;
+
+        temp1       = (r1 + t1);
+        r1          = (r1 - t1);
+        *(pData1++) = temp1;
+        max        |= (temp1 >> 31) ^ temp1;
+
+
+
+        temp2   = *pData2;
+        temp1   = *pData1;
+
+        s1      = temp1 + temp2;
+        s2      = temp1 - temp2;
+
+
+        temp1   = *pData3;
+        temp2   = *pData4;
+
+        s3      = (s2 + t2);
+        s2      = (s2 - t2);
+
+        t1      = temp1 + temp2;
+        t2      = temp1 - temp2;
+
+        temp1      = (s1 + t1);
+        *pData1    = temp1;
+        temp2      = (s1 - t1);
+
+        max       |= (temp1 >> 31) ^ temp1;
+        *pData2--  = temp2;
+        max       |= (temp2 >> 31) ^ temp2;
+
+        *pData2    = r1;
+        max       |= (r1 >> 31) ^ r1;
+        *pData3--  = s2;
+        max       |= (s2 >> 31) ^ s2;
+        *pData4--  = s3;
+        max       |= (s3 >> 31) ^ s3;
+
+        temp1      = (r2 - t2);
+        *pData4    = temp1;
+        temp2      = (r2 + t2);
+        *pData3    = temp2;
+        max       |= (temp1 >> 31) ^ temp1;
+        max       |= (temp2 >> 31) ^ temp2;
+
+    }  /* i */
+
+    *peak_value = max;
+
+    return ;
+
+}
+

media/libstagefright/codecs/aacdec/fft_rx4_short.cpp

@@ -0,0 +1,468 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/fft_rx4_short.c
+ Funtions: fft_rx4_short
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:
+            (1) Eliminated search for max in the main loop.
+            (2) Simplified the function by eliminating different conditions
+                for exp.
+            (3) Reduced precision on w_64rx4 from Q15 to Q12, so now the
+                input can be as high as 1.0 and saturation will not occurre
+                because the accumulation times the new Q12 format will never
+                exceed 31 bits.
+
+ Description:
+            (1) Added comment to explain max search elimination and
+                Q format during multiplications
+            (2) Increased down shift from 1 to 2, to ensure that 32-bit
+                numbers will not overflow when 2 consecutive adds are done
+                This was found during code review.
+
+ Who:                                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    Data       =  Input complex vector, arranged in the following order:
+                  real, imag, real, imag...
+                  This is a complex vector whose elements (real and Imag) are
+                  Int32.
+                  type Int32 *
+
+    peak_value =  Input,  peak value of the input vector
+                  Output,  peak value of the resulting vector
+                  type Int32 *
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    exponent returns a shift to compensate the scaling introduced by
+    overflow protection
+
+ Pointers and Buffers Modified:
+    calculation are done in-place and returned in Data
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Fast Fourier Transform, radix 4 with Decimation in Frequency and block
+    floating point arithmetic.
+    The radix-4 FFT  simply divides the FFT into four smaller FFTs. Each of
+    the smaller FFTs is then further divided into smaller ones and so on.
+    It consists of log 4 N stages and each stage consists of N/4 dragonflies.
+
+    An FFT is nothing but a bundle of multiplications and summations which
+    may overflow during calculations.
+
+
+    This routine uses a scheme to test and scale the result output from
+    each FFT stage in order to fix the accumulation overflow.
+
+    The Input Data should be in Q13 format to get the highest precision.
+    At the end of each dragonfly calculation, a test for possible bit growth
+    is made, if bit growth is possible the Data is scale down back to Q13.
+
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+    This function should provide a fixed point FFT for an input array
+    of size 64.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+    [1] Advance Digital Signal Processing, J. Proakis, C. Rader, F. Ling,
+        C. Nikias, Macmillan Pub. Co.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+
+   MODIFY( x[] )
+   RETURN( exponent )
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+#include "fft_rx4.h"
+#include "pv_normalize.h"
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Int fft_rx4_short(
+    Int32      Data[],
+    Int32      *peak_value)
+
+{
+    Int     n1;
+    Int     n2;
+    Int     n3;
+    Int     j;
+    Int     k;
+    Int     i;
+    Int32   exp_jw1;
+    Int32   exp_jw2;
+    Int32   exp_jw3;
+
+
+    Int32   t1;
+    Int32   t2;
+    Int32   r1;
+    Int32   r2;
+    Int32   r3;
+    Int32   s1;
+    Int32   s2;
+    Int32   s3;
+
+    Int32   *pData1;
+    Int32   *pData2;
+    Int32   *pData3;
+    Int32   *pData4;
+    const Int32  *pw;
+    Int32   temp1;
+    Int32   temp2;
+    Int32   temp3;
+    Int32   temp4;
+    Int32   max;
+    Int     exp;
+    Int     exponent = 0;
+    Int     shift;
+
+
+    max = *peak_value;
+    exp = 0;
+
+    if (max > 0x008000)
+    {
+        exp = 8 - pv_normalize(max);   /* use 24 bits  */
+
+        exponent = exp;        /* keeps track of # of shifts */
+
+    }
+
+    n2 = FFT_RX4_SHORT;
+
+    pw = W_64rx4;
+
+
+    /* shift down to avoid possible overflow in first pass of the loop */
+    shift = 2;
+
+    for (k = FFT_RX4_SHORT; k > 4; k >>= 2)
+    {
+
+        n1 = n2;
+        n2 >>= 2;
+        n3 = n1 >> 1;
+
+        exp -= 2;
+
+        for (i = 0; i < FFT_RX4_SHORT; i += n1)
+        {
+            pData1 = &Data[ i<<1];
+            pData3 = pData1 + n3;
+            pData2 = pData1 + n1;
+            pData4 = pData3 + n1;
+
+            temp1   = *(pData1);
+            temp2   = *(pData2);
+            temp1   >>= shift;
+            temp2   >>= shift;
+
+            r1      = temp1 + temp2;
+            r2      = temp1 - temp2;
+
+            temp3   = *(pData3++);
+            temp4   = *(pData4++);
+            temp3   >>= shift;
+            temp4   >>= shift;
+
+            t1      = temp3 + temp4;
+            t2      = temp3 - temp4;
+
+            *(pData1++) = (r1 + t1) >> exp;
+            *(pData2++) = (r1 - t1) >> exp;
+
+            temp1   = *pData1;
+            temp2   = *pData2;
+            temp1   >>= shift;
+            temp2   >>= shift;
+
+            s1      = temp1 + temp2;
+            s2      = temp1 - temp2;
+
+            temp3   = *pData3;
+            temp4   = *pData4;
+            temp3   >>= shift;
+            temp4   >>= shift;
+
+            t1      = temp3 + temp4;
+            r1      = temp3 - temp4;
+
+            *pData1   = (s1 + t1) >> exp;
+            *pData2   = (s1 - t1) >> exp;
+
+            *pData4--    = (s2 + t2) >> exp;
+            *pData4      = (r2 - r1) >> exp;
+
+            *pData3--    = (s2 - t2) >> exp;
+            *pData3      = (r2 + r1) >> exp;
+
+
+        }  /* i */
+
+        for (j = 1; j < n2; j++)
+        {
+            exp_jw1 = *pw++;
+            exp_jw2 = *pw++;
+            exp_jw3 = *pw++;
+
+
+            for (i = j; i < FFT_RX4_SHORT; i += n1)
+            {
+                pData1 = &Data[ i<<1];
+                pData3 = pData1 + n3;
+                pData2 = pData1 + n1;
+                pData4 = pData3 + n1;
+
+                temp1   = *(pData1);
+                temp2   = *(pData2++);
+                temp1   >>= shift;
+                temp2   >>= shift;
+
+                r1      = temp1 + temp2;
+                r2      = temp1 - temp2;
+                temp3   = *(pData3++);
+                temp4   = *(pData4++);
+                temp3   >>= shift;
+                temp4   >>= shift;
+
+                t1      = temp3 + temp4;
+                t2      = temp3 - temp4;
+
+                *(pData1++) = (r1 + t1) >> exp;
+                r1          = (r1 - t1) >> exp;
+
+                temp1   = *pData1;
+                temp2   = *pData2;
+                temp1   >>= shift;
+                temp2   >>= shift;
+
+                s1      = temp1 + temp2;
+                s2      = temp1 - temp2;
+
+                s3      = (s2 + t2) >> exp;
+                s2      = (s2 - t2) >> exp;
+
+                temp3   = *pData3;
+                temp4   = *pData4 ;
+                temp3   >>= shift;
+                temp4   >>= shift;
+
+                t1      = temp3 + temp4;
+                t2      = temp3 - temp4;
+
+                *pData1  = (s1 + t1) >> exp;
+                s1       = (s1 - t1) >> exp;
+
+
+                *pData2--  = cmplx_mul32_by_16(s1, -r1, exp_jw2) << 1;
+                *pData2    = cmplx_mul32_by_16(r1,  s1, exp_jw2) << 1;
+
+                r3       = ((r2 - t2) >> exp);
+                r2       = ((r2 + t2) >> exp);
+
+                *pData3--  = cmplx_mul32_by_16(s2, -r2, exp_jw1) << 1;
+                *pData3    = cmplx_mul32_by_16(r2,  s2, exp_jw1) << 1;
+
+                *pData4--  = cmplx_mul32_by_16(s3, -r3, exp_jw3) << 1;
+                *pData4    = cmplx_mul32_by_16(r3,  s3, exp_jw3) << 1;
+
+            }  /* i */
+
+        }  /*  j */
+
+        /*
+         *  this will reset exp and shift to zero for the second pass of the
+         *  loop
+         */
+        exp   = 2;
+        shift = 0;
+
+    } /* k */
+
+
+    max = 0;
+
+    pData1 = Data - 7;
+
+    for (i = ONE_FOURTH_FFT_RX4_SHORT; i != 0 ; i--)
+    {
+        pData1 += 7;
+
+        pData3 = pData1 + 2;
+        pData2 = pData1 + 4;
+        pData4 = pData1 + 6;
+
+        temp1   = *pData1;
+        temp2   = *pData2++;
+
+        r1      = temp1 + temp2;
+        r2      = temp1 - temp2;
+
+        temp1   = *pData3++;
+        temp2   = *pData4++;
+
+        t1      = temp1 + temp2;
+        t2      = temp1 - temp2;
+
+        temp1       = (r1 + t1);
+        r1          = (r1 - t1);
+        *(pData1++) = temp1;
+        max        |= (temp1 >> 31) ^ temp1;
+
+
+
+        temp1   = *pData1;
+        temp2   = *pData2;
+
+        s1      = temp1 + temp2;
+        s2      = temp1 - temp2;
+
+        s3      = (s2 + t2);
+        s2      = (s2 - t2);
+
+        temp1   = *pData3;
+        temp2   = *pData4;
+
+        t1      = temp1 + temp2;
+        t2      = temp1 - temp2;
+
+        temp1      = (s1 + t1);
+        temp2      = (s1 - t1);
+        *pData1    = temp1;
+        *pData2--  = temp2;
+        max       |= (temp1 >> 31) ^ temp1;
+        max       |= (temp2 >> 31) ^ temp2;
+
+        *pData2    = r1;
+        *pData3--  = s2;
+        *pData4--  = s3;
+        max       |= (r1 >> 31) ^ r1;
+        max       |= (s2 >> 31) ^ s2;
+        max       |= (s3 >> 31) ^ s3;
+
+        temp1      = (r2 - t2);
+        temp2      = (r2 + t2);
+        *pData4    = temp1;
+        *pData3    = temp2;
+        max       |= (temp1 >> 31) ^ temp1;
+        max       |= (temp2 >> 31) ^ temp2;
+
+    }  /* i */
+
+    *peak_value = max;
+
+
+    return (exponent);
+
+}

media/libstagefright/codecs/aacdec/fft_rx4_tables_fxp.cpp

@@ -0,0 +1,269 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/fft_rx4_tables_fxp.c
+ Funtions:
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Reduce the accuracy of w_256rx4 and w_512rx2 to Q10 format.
+            Try to to pack sin and cos into one 32-bit number to reduce the
+            memory access, but doesn't help in speed, so commented out for now.
+
+ Description:
+        (1) Reduced precision of w_64rx4 from Q15 to Q12.
+        (2) Increased precision of w_512rx2 from Q10 to Q13, Both changes
+            increase overall decoder precision
+
+ Description:
+        (1) per code review comment, added description for table generation
+        (2) modified definition of w_64rx4 from Int to Int16
+
+
+ Who:                           Date:
+ Description:
+
+  ----------------------------------------------------------------------------
+ MODULE DESCRIPTION
+
+  Table generation
+
+ n = 256  or  64;
+ M = precision; 2^10, 2^12, 2^13
+
+ for j=1; j<log4(n); j *= 4
+
+    for i=0; i<n/4; i +=j
+
+        phi_1 = 2*pi*i/n;
+        phi_2 = 4*pi*i/n;
+        phi_3 = 6*pi*i/n;
+        M*[cos(phi_1) sin(phi_1) cos(phi_2) sin(phi_2) cos(phi_3) sin(phi_4)];
+
+    end
+
+ end
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "fft_rx4.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*
+------------------------------------------------------------------------------
+ Forward FFT radix-4 tables
+------------------------------------------------------------------------------
+*/
+
+
+const Int32 W_64rx4[60] =            /* 2 Q15  */
+{
+
+    0x7F610C8C,  0x7D8918F9,  0x7A7C2528,
+    0x7D8918F9,  0x764130FB,  0x6A6D471C,
+    0x7A7C2528,  0x6A6D471C,  0x513362F1,
+    0x764130FB,  0x5A825A82,  0x30FB7641,
+    0x70E23C56,  0x471C6A6D,  0x0C8C7F61,
+    0x6A6D471C,  0x30FB7641,  0xE7057D89,
+    0x62F15133,  0x18F97D89,  0xC3A870E2,
+    0x5A825A82,  0x00007FFF,  0xA57C5A82,
+    0x513362F1,  0xE7057D89,  0x8F1C3C56,
+    0x471C6A6D,  0xCF037641,  0x827518F9,
+    0x3C5670E2,  0xB8E26A6D,  0x809DF372,
+    0x30FB7641,  0xA57C5A82,  0x89BDCF03,
+    0x25287A7C,  0x9591471C,  0x9D0DAECB,
+    0x18F97D89,  0x89BD30FB,  0xB8E29591,
+    0x0C8C7F61,  0x827518F9,  0xDAD68582,
+    0x764130FB,  0x5A825A82,  0x30FB7641,
+    0x5A825A82,  0x00007FFF,  0xA57C5A82,
+    0x30FB7641,  0xA57C5A82,  0x89BDCF03,
+};
+
+
+
+const Int32 W_256rx4[495] =            /* 2 Q15  */
+{
+
+    0x7FF50324,  0x7FD80648,  0x7FA6096A,
+    0x7FD80648,  0x7F610C8C,  0x7E9C12C8,
+    0x7FA6096A,  0x7E9C12C8,  0x7CE31C0B,
+    0x7F610C8C,  0x7D8918F9,  0x7A7C2528,
+    0x7F090FAB,  0x7C291F1A,  0x776B2E11,
+    0x7E9C12C8,  0x7A7C2528,  0x73B536BA,
+    0x7E1D15E2,  0x78842B1F,  0x6F5E3F17,
+    0x7D8918F9,  0x764130FB,  0x6A6D471C,
+    0x7CE31C0B,  0x73B536BA,  0x64E84EBF,
+    0x7C291F1A,  0x70E23C56,  0x5ED755F5,
+    0x7B5C2223,  0x6DC941CE,  0x58425CB3,
+    0x7A7C2528,  0x6A6D471C,  0x513362F1,
+    0x79892826,  0x66CF4C3F,  0x49B468A6,
+    0x78842B1F,  0x62F15133,  0x41CE6DC9,
+    0x776B2E11,  0x5ED755F5,  0x398C7254,
+    0x764130FB,  0x5A825A82,  0x30FB7641,
+    0x750433DF,  0x55F55ED7,  0x28267989,
+    0x73B536BA,  0x513362F1,  0x1F1A7C29,
+    0x7254398C,  0x4C3F66CF,  0x15E27E1D,
+    0x70E23C56,  0x471C6A6D,  0x0C8C7F61,
+    0x6F5E3F17,  0x41CE6DC9,  0x03247FF5,
+    0x6DC941CE,  0x3C5670E2,  0xF9B67FD8,
+    0x6C23447A,  0x36BA73B5,  0xF0537F09,
+    0x6A6D471C,  0x30FB7641,  0xE7057D89,
+    0x68A649B4,  0x2B1F7884,  0xDDDB7B5C,
+    0x66CF4C3F,  0x25287A7C,  0xD4DF7884,
+    0x64E84EBF,  0x1F1A7C29,  0xCC1F7504,
+    0x62F15133,  0x18F97D89,  0xC3A870E2,
+    0x60EB539B,  0x12C87E9C,  0xBB846C23,
+    0x5ED755F5,  0x0C8C7F61,  0xB3BF66CF,
+    0x5CB35842,  0x06487FD8,  0xAC6360EB,
+    0x5A825A82,  0x00007FFF,  0xA57C5A82,
+    0x58425CB3,  0xF9B67FD8,  0x9F13539B,
+    0x55F55ED7,  0xF3727F61,  0x992F4C3F,
+    0x539B60EB,  0xED367E9C,  0x93DB447A,
+    0x513362F1,  0xE7057D89,  0x8F1C3C56,
+    0x4EBF64E8,  0xE0E47C29,  0x8AFA33DF,
+    0x4C3F66CF,  0xDAD67A7C,  0x877A2B1F,
+    0x49B468A6,  0xD4DF7884,  0x84A22223,
+    0x471C6A6D,  0xCF037641,  0x827518F9,
+    0x447A6C23,  0xC94473B5,  0x80F50FAB,
+    0x41CE6DC9,  0xC3A870E2,  0x80260648,
+    0x3F176F5E,  0xBE306DC9,  0x8009FCDA,
+    0x3C5670E2,  0xB8E26A6D,  0x809DF372,
+    0x398C7254,  0xB3BF66CF,  0x81E1EA1C,
+    0x36BA73B5,  0xAECB62F1,  0x83D5E0E4,
+    0x33DF7504,  0xAA095ED7,  0x8675D7D8,
+    0x30FB7641,  0xA57C5A82,  0x89BDCF03,
+    0x2E11776B,  0xA12755F5,  0x8DAAC672,
+    0x2B1F7884,  0x9D0D5133,  0x9235BE30,
+    0x28267989,  0x992F4C3F,  0x9758B64A,
+    0x25287A7C,  0x9591471C,  0x9D0DAECB,
+    0x22237B5C,  0x923541CE,  0xA34BA7BC,
+    0x1F1A7C29,  0x8F1C3C56,  0xAA09A127,
+    0x1C0B7CE3,  0x8C4936BA,  0xB13F9B16,
+    0x18F97D89,  0x89BD30FB,  0xB8E29591,
+    0x15E27E1D,  0x877A2B1F,  0xC0E790A0,
+    0x12C87E9C,  0x85822528,  0xC9448C49,
+    0x0FAB7F09,  0x83D51F1A,  0xD1ED8893,
+    0x0C8C7F61,  0x827518F9,  0xDAD68582,
+    0x096A7FA6,  0x816212C8,  0xE3F3831B,
+    0x06487FD8,  0x809D0C8C,  0xED368162,
+    0x03247FF5,  0x80260648,  0xF6948058,
+    0x7F610C8C,  0x7D8918F9,  0x7A7C2528,
+    0x7D8918F9,  0x764130FB,  0x6A6D471C,
+    0x7A7C2528,  0x6A6D471C,  0x513362F1,
+    0x764130FB,  0x5A825A82,  0x30FB7641,
+    0x70E23C56,  0x471C6A6D,  0x0C8C7F61,
+    0x6A6D471C,  0x30FB7641,  0xE7057D89,
+    0x62F15133,  0x18F97D89,  0xC3A870E2,
+    0x5A825A82,  0x00007FFF,  0xA57C5A82,
+    0x513362F1,  0xE7057D89,  0x8F1C3C56,
+    0x471C6A6D,  0xCF037641,  0x827518F9,
+    0x3C5670E2,  0xB8E26A6D,  0x809DF372,
+    0x30FB7641,  0xA57C5A82,  0x89BDCF03,
+    0x25287A7C,  0x9591471C,  0x9D0DAECB,
+    0x18F97D89,  0x89BD30FB,  0xB8E29591,
+    0x0C8C7F61,  0x827518F9,  0xDAD68582,
+    0x764130FB,  0x5A825A82,  0x30FB7641,
+    0x5A825A82,  0x00007FFF,  0xA57C5A82,
+    0x30FB7641,  0xA57C5A82,  0x89BDCF03
+};
+
+
+
+/*
+------------------------------------------------------------------------------
+ Forward FFT radix-2 table
+------------------------------------------------------------------------------
+*/
+
+
+const Int32 w_512rx2[127] =
+{
+    /* Q15  */
+    0x7FFE0192, 0x7FF60324, 0x7FEA04B6,
+    0x7FD90648,  0x7FC207D9, 0x7FA7096B, 0x7F870AFB,
+    0x7F620C8C,  0x7F380E1C, 0x7F0A0FAB, 0x7ED6113A,
+    0x7E9D12C8,  0x7E601455, 0x7E1E15E2, 0x7DD6176E,
+    0x7D8A18F9,  0x7D3A1A83, 0x7CE41C0C, 0x7C891D93,
+    0x7C2A1F1A,  0x7BC6209F, 0x7B5D2224, 0x7AEF23A7,
+    0x7A7D2528,  0x7A0626A8, 0x798A2827, 0x790A29A4,
+    0x78852B1F,  0x77FB2C99, 0x776C2E11, 0x76D92F87,
+    0x764230FC,  0x75A6326E, 0x750533DF, 0x7460354E,
+    0x73B636BA,  0x73083825, 0x7255398D, 0x719E3AF3,
+    0x70E33C57,  0x70233DB8, 0x6F5F3F17, 0x6E974074,
+    0x6DCA41CE,  0x6CF94326, 0x6C24447B, 0x6B4B45CD,
+    0x6A6E471D,  0x698C486A, 0x68A749B4, 0x67BD4AFB,
+    0x66D04C40,  0x65DE4D81, 0x64E94EC0, 0x63EF4FFB,
+    0x62F25134,  0x61F15269, 0x60EC539B, 0x5FE454CA,
+    0x5ED755F6,  0x5DC8571E, 0x5CB45843, 0x5B9D5964,
+    0x5A825A82,  0x59645B9D, 0x58435CB4, 0x571E5DC8,
+    0x55F65ED7,  0x54CA5FE4, 0x539B60EC, 0x526961F1,
+    0x513462F2,  0x4FFB63EF, 0x4EC064E9, 0x4D8165DE,
+    0x4C4066D0,  0x4AFB67BD, 0x49B468A7, 0x486A698C,
+    0x471D6A6E,  0x45CD6B4B, 0x447B6C24, 0x43266CF9,
+    0x41CE6DCA,  0x40746E97, 0x3F176F5F, 0x3DB87023,
+    0x3C5770E3,  0x3AF3719E, 0x398D7255, 0x38257308,
+    0x36BA73B6,  0x354E7460, 0x33DF7505, 0x326E75A6,
+    0x30FC7642,  0x2F8776D9, 0x2E11776C, 0x2C9977FB,
+    0x2B1F7885,  0x29A4790A, 0x2827798A, 0x26A87A06,
+    0x25287A7D,  0x23A77AEF, 0x22247B5D, 0x209F7BC6,
+    0x1F1A7C2A,  0x1D937C89, 0x1C0C7CE4, 0x1A837D3A,
+    0x18F97D8A,  0x176E7DD6, 0x15E27E1E, 0x14557E60,
+    0x12C87E9D,  0x113A7ED6, 0x0FAB7F0A, 0x0E1C7F38,
+    0x0C8C7F62,  0x0AFB7F87, 0x096B7FA7, 0x07D97FC2,
+    0x06487FD9,  0x04B67FEA, 0x03247FF6, 0x01927FFE
+};
+

media/libstagefright/codecs/aacdec/find_adts_syncword.cpp

@@ -0,0 +1,305 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/find_adts_syncword.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Fixed error in logic that determines whether there are enough
+ bits available to conduct a search for the syncword.  The plus sign in
+ the following condition should be a minus.
+
+    if (pInputStream->usedBits <
+            (pInputStream->availableBits + syncword_length)
+
+ The length of the syncword should subtract from the number of available
+ bits, not add.
+
+ Description:  Fixed condition when the end of file was found, unsigned
+   comparison produced a undesired search. Fixed by casting comparison
+     if ((Int)pInputStream->usedBits <
+            ((Int)pInputStream->availableBits - syncword_length) )
+
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pSyncword     = Pointer to variable containing the syncword that the
+                    function should be scanning for in the buffer. [ UInt32 * ]
+
+    pInputStream  = Pointer to a BITS structure, used by the function getbits
+                    to retrieve data from the bitstream.  [ BITS * ]
+
+    syncword_length = The length of the syncword. [ Int ]
+
+    syncword_mask   = A mask to be applied to the bitstream before comparison
+                      with the value pointed to by pSyncword. [ UInt32 ]
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    None
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This module scans the bitstream for a syncword of any length between 1 and 32.
+ If certain bits in the syncword are to be ignored, that bit position should
+ be set to 0 in both parameters *(pSyncword) and syncword_mask.  This allows
+ for a syncword to be constructed out of non-contiguous bits.
+
+ Upon finding the syncword's position in the bitstream, a value denoting the
+ syncword's degree of deviance from being byte-aligned (byte_align_offset)
+ is set in the structure pointed to by pInputStream.
+ This is a value between 0 and 7.
+
+ If no syncword is found, the function returns status == ERROR.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ "Don't care" bits must be set to '0' in both *(pSyncword) and syncword_mask.
+
+ This function should not be called if there are less than
+ (8 + syncword_length) bits in the buffer.
+
+------------------------------------------------------------------------------
+ REFERENCES
+ (1) ISO/IEC 13818-7:1997(E)
+     Part 7
+        Subpart 6.2 (Audio_Data_Transport_Stream frame, ADTS)
+
+ (2) ISO/IEC 11172-3:1993(E)
+     Part 3
+        Subpart 2.4.3 The audio decoding process
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    IF (pInputStream->usedBits <
+            (pInputStream->availableBits + syncword_length) )
+
+        max_search_length = (pInputStream->availableBits - pInputStream->usedBits);
+
+        max_search_length = max_search_length - syncword_length;
+
+        search_length = 0;
+
+        adts_header =
+        CALL getbits(syncword_length, pInputStream);
+            MODIFYING pInputStream->usedBits
+            RETURNING bits from bitstream of length (syncword_length)
+
+        test_for_syncword = adts_header AND syncword_mask;
+        test_for_syncword = test_for_syncword XOR syncword;
+
+        WHILE ( (test_for_syncword != 0) && (search_length > 0) )
+
+            search_length = search_length - 1;
+
+            adts_header = adts_header << 1;
+            adts_header = adts_header OR ...
+
+            CALL getbits(syncword_length, pInputStream);
+                MODIFYING pInputStream->usedBits
+                RETURNING 1 bit from the bitstream
+
+            test_for_syncword = adts_header AND syncword_mask;
+            test_for_syncword = test_for_syncword XOR syncword;
+
+        ENDWHILE
+
+        IF (search_length == 0)
+            status = ERROR;
+        ENDIF
+
+        *(pSyncword) = adts_header;
+
+         pInputStream->byteAlignOffset =
+             (pInputStream->usedBits - syncwordlength) AND 0x7;
+
+    ELSE
+        status = ERROR;
+    ENDIF
+
+    return (status);
+
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_bits.h"
+#include "ibstream.h"
+#include "find_adts_syncword.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define FIND_ADTS_ERROR -1
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Int find_adts_syncword(
+    UInt32 *pSyncword,
+    BITS   *pInputStream,
+    Int     syncword_length,
+    UInt32  syncword_mask)
+{
+
+    Int    status = SUCCESS;
+    UInt   search_length;
+    UInt32 adts_header = 0;
+    UInt32 test_for_syncword;
+    UInt32 syncword = *(pSyncword);
+
+    /*
+     * Determine the maximum number of bits available to this function for
+     * the syncword search.
+     */
+    if ((Int)pInputStream->usedBits <
+            ((Int)pInputStream->availableBits - syncword_length))
+    {
+        search_length = (pInputStream->availableBits - pInputStream->usedBits);
+
+        search_length -= syncword_length;
+
+        adts_header  = getbits(syncword_length, pInputStream);
+
+        /*
+         * Mask the result in adts_header with the syncword_mask, so only the
+         * bits relevant to syncword detection are compared to *(pSyncword).
+         */
+        test_for_syncword  = adts_header & syncword_mask;
+        test_for_syncword ^= syncword;
+
+        /*
+         * Scan bit-by-bit through the bitstream, until the function either
+         * runs out of bits, or finds the syncword.
+         */
+
+        while ((test_for_syncword != 0) && (search_length > 0))
+        {
+            search_length--;
+
+            adts_header <<= 1;
+            adts_header |= getbits(1, pInputStream);
+
+            test_for_syncword  = adts_header & syncword_mask;
+            test_for_syncword ^= syncword;
+        }
+
+        if (search_length == 0)
+        {
+            status = FIND_ADTS_ERROR;
+        }
+
+        /*
+         * Return the syncword's position in the bitstream.  Correct placement
+         * of the syncword will result in byte_align_offset == 0.
+         * If the syncword is found not to be byte-aligned, then return
+         * the degree of disalignment, so further decoding can
+         * be shifted as necessary.
+         *
+         */
+        pInputStream->byteAlignOffset =
+            (pInputStream->usedBits - syncword_length) & 0x7;
+
+    } /* END if (pInputStream->usedBits < ...) */
+
+    else
+    {
+        status = FIND_ADTS_ERROR;
+    }
+
+    *(pSyncword) = adts_header;
+
+    return (status);
+
+} /* find_adts_syncword() */

media/libstagefright/codecs/aacdec/find_adts_syncword.h

@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/find_adts_syncword.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This function includes the function declaration for find_adts_syncword()
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef FIND_ADTS_SYNCWORD_H
+#define FIND_ADTS_SYNCWORD_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "s_bits.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+Int find_adts_syncword(
+    UInt32 *pSyncword,
+    BITS   *pInputStream,
+    Int     syncword_length,
+    UInt32  syncword_mask);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/fwd_long_complex_rot.cpp

@@ -0,0 +1,284 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/fwd_long_complex_rot.c
+ Funtions: fwd_long_complex_rot
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Date: 10/18/2002
+ Description:
+            (1) Change the input arguments, no shifts information from
+                long_fft_rx4 is passed, only a single max is passed.
+            (2) Eliminate search for max, a fixed shift has replaced the
+                search for max with minimal loss of precision.
+            (3) Eliminated unused variables
+
+ Date: 10/28/2002
+ Description:
+            (1) Added comments per code review
+            (2) Eliminated hardly used condition on if-else (exp==0)
+
+ Description:
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+
+    Data_in   = Input vector (sized for long windows
+                TWICE_FWD_LONG_CX_ROT_LENGTH), with time domain samples
+                type Int32 *
+
+    Data_out  = Output vector with a post-rotation by exp(-j(2pi/N)(k+1/8)),
+                (sized for long windows TWICE_FWD_LONG_CX_ROT_LENGTH)
+                type Int32 *
+
+    max       = Input, carries the maximum value of the input vector
+                "Data_in"
+                type Int32
+
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    exp = shift factor to reflect signal scaling
+
+ Pointers and Buffers Modified:
+    Results are return in "Data_out"
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    fwd_long_complex_rot() performs the pre complex rotation for the MDCT
+    for the case of long windows. It also performs digit reverse ordering of
+    the first and second halves of the input vector "Data_in", as well as
+    reordering of the two half vectors (following radix-2 decomposition)
+    Word normalization is also done to ensure 16 by 16 bit multiplications.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+    fwd_long_complex_rot() should execute a pre-rotation by
+    exp(-j(2pi/N)(k+1/8)), digit reverse ordering and normalization
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "fwd_long_complex_rot.h"
+#include "digit_reversal_tables.h"
+#include "imdct_fxp.h"
+#include "pv_normalize.h"
+
+#include "fxp_mul32.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+Int fwd_long_complex_rot(
+    Int32 *Data_in,
+    Int32 *Data_out,
+    Int32  max)
+{
+    Int     i;
+    const   Int32 *p_rotate;
+    Int32   temp_re;
+    Int32   temp_im;
+    Int32   *pData_in_ref1;
+    Int32   *pData_in_ref2;
+    Int32   exp_jw;
+    Int32   temp_re_32;
+    Int32   temp_im_32;
+
+    Int32   *pData_out_1;
+    Int32   *pData_out_2;
+    Int32   *pData_out_3;
+    Int32   *pData_out_4;
+
+    Int32 *pData_in_1;
+    Int32 *pData_in_2;
+
+    Int     exp;
+
+    p_rotate       =  exp_rotation_N_2048;
+
+    pData_in_ref1  =  Data_in;
+    pData_in_ref2  = &Data_in[TWICE_FWD_LONG_CX_ROT_LENGTH];
+
+    pData_out_1 = Data_out;
+    pData_out_2 = &Data_out[LONG_WINDOW_LENGTH_m_1];
+    pData_out_3 = &Data_out[LONG_WINDOW_LENGTH];
+    pData_out_4 = &Data_out[TWICE_LONG_WINDOW_LENGTH_m_1];
+
+    /*
+     *  Data_out
+     *                                   >>>>                   <<<<
+     *                                pData_out_3             pData_out_4
+     *      |             |             |             |             |
+     * pData_out_1               pData_out_2
+     *      >>>>                     <<<<
+     */
+
+
+    exp = 16 - pv_normalize(max);
+
+    if (exp < 0)
+    {
+        exp = 0;
+    }
+
+    /*
+     *  Apply  A/2^(diff) + B
+     */
+
+
+    pData_in_1 = pData_in_ref1;
+    pData_in_2 = pData_in_ref2;
+
+    for (i = FWD_LONG_CX_ROT_LENGTH; i != 0; i--)
+    {
+
+        /*
+         * cos_n + j*sin_n == exp(j(2pi/N)(k+1/8))
+         */
+
+        exp_jw = *p_rotate++;
+
+        /*
+         *  Use auxiliary variables to avoid double accesses to memory.
+         *  Data in is scaled to use only lower 16 bits.
+         */
+
+        temp_re =  *(pData_in_1++) >> exp;
+        temp_im =  *(pData_in_1++) >> exp;
+
+        /*
+         *   Pre-rotation
+         */
+
+        temp_re_32  = (cmplx_mul32_by_16(temp_re,   temp_im,  exp_jw));
+        temp_im_32  = (cmplx_mul32_by_16(temp_im,  -temp_re,  exp_jw));
+
+        *(pData_out_1++) = - temp_re_32;
+        *(pData_out_2--) =   temp_im_32;
+        *(pData_out_3++) = - temp_im_32;
+        *(pData_out_4--) =   temp_re_32;
+
+        /*
+         *   Pointer increment to jump over imag (1 & 4) or real parts
+         *   (2 & 3)
+         */
+        pData_out_1++;
+        pData_out_2--;
+        pData_out_3++;
+        pData_out_4--;
+
+        /*
+         *   Repeat procedure for odd index at the output
+         */
+
+        exp_jw = *p_rotate++;
+
+        temp_re =  *(pData_in_2++) >> exp;
+        temp_im =  *(pData_in_2++) >> exp;
+
+        temp_re_32  = (cmplx_mul32_by_16(temp_re,   temp_im,  exp_jw));
+        temp_im_32  = (cmplx_mul32_by_16(temp_im,  -temp_re,  exp_jw));
+
+        *(pData_out_1++) = - temp_re_32;
+        *(pData_out_2--) =   temp_im_32;
+        *(pData_out_3++) = - temp_im_32;
+        *(pData_out_4--) =   temp_re_32;
+
+        pData_out_1++;
+        pData_out_2--;
+        pData_out_3++;
+        pData_out_4--;
+
+    }
+
+    return (exp + 1);
+}

media/libstagefright/codecs/aacdec/fwd_long_complex_rot.h

@@ -0,0 +1,96 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/fwd_long_complex_rot.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for functions fwd_long_complex_rot
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef FWD_LONG_COMPLEX_ROT_H
+#define FWD_LONG_COMPLEX_ROT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define FWD_LONG_CX_ROT_LENGTH              256
+#define TWICE_FWD_LONG_CX_ROT_LENGTH        (FWD_LONG_CX_ROT_LENGTH<<1)
+#define LONG_WINDOW_LENGTH                  1024
+#define LONG_WINDOW_LENGTH_m_1              (LONG_WINDOW_LENGTH - 1)
+#define TWICE_LONG_WINDOW_LENGTH_m_1        ((LONG_WINDOW_LENGTH<<1) - 1)
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+
+
+Int fwd_long_complex_rot(
+    Int32 *Data_in,
+    Int32 *Data_out,
+    Int32  max);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* FWD_LONG_COMPLEX_ROT_H */

media/libstagefright/codecs/aacdec/fwd_short_complex_rot.cpp

@@ -0,0 +1,261 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+ Pathname: ./src/fwd_short_complex_rot.c
+ Funtions:  fwd_short_complex_rot
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Date: 10/18/2002
+ Description:
+            (1) Change the input argument, only a single max is passed.
+            (2) Eliminate search for max, a fixed shift has replaced the
+                search for max with minimal loss of precision.
+            (3) Eliminated unused variables
+
+ Date: 10/28/2002
+ Description:
+            (1) Added comments per code review
+            (2) Eliminated hardly used condition on if-else (exp==0)
+
+ Description:
+
+ ------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+
+    Data_in   = Input vector (sized for short windows
+                2*FWD_SHORT_CX_ROT_LENGTH elements), with freq. domain samples
+                type Int32 *
+
+    Data_out  = Output vector with a post-rotation by exp(-j(2pi/N)(k+1/8)),
+                (sized for short windows 2*FWD_SHORT_CX_ROT_LENGTH)
+                type Int32 *
+
+    max       = Input, carries the maximum value of the input vector
+                "Data_in"
+                type Int32
+
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    exp = shift factor to reflect signal scaling
+
+ Pointers and Buffers Modified:
+    Results are return in "Data_out"
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    fwd_short_complex_rot() performs the complex rotation for the MDCT
+    for the case of short windows. It performs digit reverse ordering as well
+    word normalization to ensure 16 by 16 bit multiplications.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+    fwd_short_complex_rot() should execute a pre-rotation by
+    exp(-j(2pi/N)(k+1/8)), digit reverse ordering and word normalization
+------------------------------------------------------------------------------
+ REFERENCES
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "fwd_short_complex_rot.h"
+#include "digit_reversal_tables.h"
+#include "imdct_fxp.h"
+#include "pv_normalize.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+Int fwd_short_complex_rot(
+    Int32 *Data_in,
+    Int32 *Data_out,
+    Int32  max)
+
+{
+    Int     i;
+    Int16     I;
+    const   Int16 *pTable;
+    const   Int32 *p_rotate;
+
+    Int32   *pData_in_1;
+    Int     exp;
+    Int32   temp_re;
+    Int32   temp_im;
+
+    Int32   cos_n;
+    Int32   sin_n;
+    Int32   temp_re_32;
+    Int32   temp_im_32;
+
+    Int32   *pData_in_ref;
+
+    Int32   *pData_out_1;
+    Int32   *pData_out_2;
+    Int32   *pData_out_3;
+    Int32   *pData_out_4;
+
+    pTable    =  digit_reverse_64;
+    p_rotate  =  exp_rotation_N_256;
+
+    pData_in_ref  =  Data_in;
+
+    exp = 16 - pv_normalize(max);
+
+    if (exp < 0)
+    {
+        exp = 0;
+    }
+
+    pData_out_1 = Data_out;
+    pData_out_2 = &Data_out[TWICE_FWD_SHORT_CX_ROT_LENGTH_m_1];
+    pData_out_3 = &Data_out[TWICE_FWD_SHORT_CX_ROT_LENGTH];
+    pData_out_4 = &Data_out[FOUR_FWD_SHORT_CX_ROT_LENGTH_m_1];
+
+    /*
+     *  Data_out
+     *                                   >>>>                   <<<<
+     *                                pData_out_3             pData_out_4
+     *      |             |             |             |             |
+     * pData_out_1               pData_out_2
+     *      >>>>                     <<<<
+     */
+
+
+    for (i = FWD_SHORT_CX_ROT_LENGTH; i != 0; i--)
+    {
+        /*
+         *   Perform digit reversal by accessing index I from table
+         */
+
+        I = *pTable++;
+        pData_in_1 = pData_in_ref + I;
+
+        /*
+         * cos_n + j*sin_n == exp(j(2pi/N)(k+1/8))
+         */
+
+        sin_n = *p_rotate++;
+        cos_n = sin_n >> 16;
+        sin_n = sin_n & 0xFFFF;
+
+        /*
+         *  Use auxiliary variables to avoid double accesses to memory.
+         *  Data in is scaled to use only lower 16 bits.
+         */
+
+        temp_re =  *(pData_in_1++) >> exp;
+        temp_im =  *(pData_in_1) >> exp;
+
+        /*
+         *   Pre-rotation
+         */
+
+        temp_re_32 = (temp_re * cos_n + temp_im * sin_n) >> 16;
+        temp_im_32 = (temp_im * cos_n - temp_re * sin_n) >> 16;
+
+        *(pData_out_1++) = - temp_re_32;
+        *(pData_out_2--) =   temp_im_32;
+        *(pData_out_3++) = - temp_im_32;
+        *(pData_out_4--) =   temp_re_32;
+
+        /*
+         *   Pointer increment to jump over imag (1 & 4) or real parts
+         *   (2 & 3)
+         */
+
+        pData_out_1++;
+        pData_out_2--;
+        pData_out_3++;
+        pData_out_4--;
+
+    } /* for(i) */
+
+    return (exp);
+}

media/libstagefright/codecs/aacdec/fwd_short_complex_rot.h

@@ -0,0 +1,92 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: .fwd_short_complex_rot.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for functions fwd_short_complex_rot
+
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef FWD_SHORT_COMPLEX_ROT_H
+#define FWD_SHORT_COMPLEX_ROT_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define FWD_SHORT_CX_ROT_LENGTH             64
+#define TWICE_FWD_SHORT_CX_ROT_LENGTH       (FWD_SHORT_CX_ROT_LENGTH<<1)
+#define TWICE_FWD_SHORT_CX_ROT_LENGTH_m_1   ((FWD_SHORT_CX_ROT_LENGTH<<1) - 1)
+#define FOUR_FWD_SHORT_CX_ROT_LENGTH_m_1    ((FWD_SHORT_CX_ROT_LENGTH<<2) - 1)
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+Int fwd_short_complex_rot(
+    Int32 *Data_in,
+    Int32 *Data_out,
+    Int32  max);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif  /* FWD_SHORT_COMPLEX_ROT_H */

media/libstagefright/codecs/aacdec/fxp_mul32.h

@@ -0,0 +1,72 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/fxp_mul32.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32
+#define FXP_MUL32
+
+#if   defined(PV_ARM_V5)
+
+#include "fxp_mul32_arm_v5.h"
+
+#elif defined(PV_ARM_V4)
+
+#include "fxp_mul32_arm_v4.h"
+
+#elif defined(PV_ARM_MSC_EVC_V4)
+
+#include "fxp_mul32_c_msc_evc.h"
+
+#elif defined(PV_ARM_MSC_EVC_V5)
+
+#include "fxp_mul32_c_msc_evc_armv5.h"
+
+#elif defined(PV_ARM_GCC_V5)
+
+#include "fxp_mul32_arm_gcc.h"
+
+#elif defined(PV_ARM_GCC_V4)
+
+#include "fxp_mul32_arm_v4_gcc.h"
+
+#else
+
+#ifndef C_EQUIVALENT
+#define C_EQUIVALENT
+#endif
+
+#include "fxp_mul32_c_equivalent.h"
+
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_arm_gcc.h

@@ -0,0 +1,547 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/fxp_mul32_arm_gcc.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_ARM_GCC
+#define FXP_MUL32_ARM_GCC
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+
+#if (defined (PV_ARM_GCC_V4) || defined(PV_ARM_GCC_V5)) /* ARM GNU COMPILER  */
+
+
+
+#define preload_cache( a)
+
+
+    static inline Int32 shft_lft_1(Int32 y)
+    {
+        register Int32 x;
+        register Int32 ra = y;
+
+
+        asm volatile(
+            "qadd %0, %1, %1\n\t"
+    : "=&r*i"(x)
+                    : "r"(ra));
+
+        return (x);
+    }
+
+    static inline Int32 fxp_mul_16_by_16bb(Int32 L_var1, const Int32 L_var2)
+    {
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smulbb %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+
+    static inline Int32 fxp_mul_16_by_16tb(Int32 L_var1, const Int32 L_var2)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smultb %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+    static inline Int32 fxp_mul_16_by_16bt(Int32 L_var1, const Int32 L_var2)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smulbt %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+    static inline Int32 fxp_mul_16_by_16tt(Int32 L_var1, const Int32 L_var2)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smultt %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+    static inline Int32 fxp_mac_16_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+{
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "smlabb %0, %1, %2, %3"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp);
+    }
+
+
+
+    static inline Int32 fxp_mac_16_by_16_bb(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+{
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "smlabb %0, %1, %2, %3"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp);
+    }
+
+
+    static inline Int32 fxp_mac_16_by_16_bt(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+{
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "smlabt %0, %1, %2, %3"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp);
+    }
+
+
+
+    static inline Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw)
+{
+        register Int32 cx_sum;
+        register Int32 rx = (Int32)x;
+        register Int32 ry = (Int32)y;
+        register Int32 rexp = (Int32)exp_jw;
+        asm volatile(
+            "smulwt %0, %1, %3\n\t"
+            "smlawb %0, %2, %3, %0"
+    : "=&r*i"(cx_sum)
+                    : "r"(rx),
+                    "r"(ry),
+                    "r"(rexp));
+
+        return (cx_sum);
+    }
+
+
+    static inline Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smulwb %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+
+    static inline Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "smulwt %0, %1, %2"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp);
+    }
+
+
+
+    static inline Int32 fxp_mac32_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+{
+
+        register Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "smlawb %0, %1, %2, %3"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp);
+    }
+
+
+    __inline  int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+{
+        sum += (int64)L_var1 * L_var2;
+        return (sum);
+    }
+
+
+
+
+    static inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add %4, %4, %0, asl #2\n\t"
+                     "add %0, %4, %1, lsr #30"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b)
+{
+
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add %0, %0, %4"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_sub;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "sub %0, %4, %0"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q31(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile(
+            "smull %1, %0, %2, %3"
+    : "=&r*i"(result64_hi),
+            "=&r*i"(result64_lo)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #2\n\t"
+                     "orr   %0, %0, %1, lsr #30"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add   %4, %4, %0, lsl #3\n\t"
+                     "add   %0, %4, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_sub;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "sub   %4, %4, %0, lsl #3\n\t"
+                     "sub   %0, %4, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+    static inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #3\n\t"
+                     "orr   %0, %0, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #4\n\t"
+                     "orr   %0, %0, %1, lsr #28"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+    static inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #5\n\t"
+                     "orr   %0, %0, %1, lsr #27"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #6\n\t"
+                     "orr   %0, %0, %1, lsr #26"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #12\n\t"
+                     "orr   %0, %0, %1, lsr #20"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #17\n\t"
+                     "orr   %0, %0, %1, lsr #15"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2,  %3\n\t"
+                     "mov   %0, %0, lsl #18\n\t"
+                     "orr   %0, %0, %1, lsr #14"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_arm_v4.h

@@ -0,0 +1,429 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: fxp_mul32_c_equivalent.h
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_ARM_V4
+#define FXP_MUL32_ARM_V4
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+
+#if defined(PV_ARM_V4)
+
+#define preload_cache( a)
+
+
+    __inline  Int32 shft_lft_1(Int32 L_var1)
+    {
+        Int32 x;
+        Int32 z = 1; /* rvct compiler problem */
+        __asm
+        {
+            mov x, L_var1, asl 1
+            teq L_var1, x, asr z
+            eorne  x, INT32_MAX, L_var1, asr #31
+        }
+
+        return(x);
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16bb(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+
+            mov L_var2, L_var2, asl #16
+            mov L_var2, L_var2, asr #16
+            mov L_var1, L_var1, asl #16
+            mov L_var1, L_var1, asr #16
+
+
+            mul L_var1, L_var2, L_var1
+        }
+
+        return L_var1;
+
+    }
+
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+
+    __inline  Int32 fxp_mul_16_by_16tb(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            mov L_var2, L_var2, asl #16
+            mov L_var2, L_var2, asr #16
+            mov L_var1, L_var1, asr #16
+
+            mul L_var1, L_var2, L_var1
+        }
+        return L_var1;
+    }
+
+    __inline  Int32 fxp_mul_16_by_16bt(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            mov L_var2, L_var2, asr #16
+            mov L_var1, L_var1, asl #16
+            mov L_var1, L_var1, asr #16
+
+            mul L_var1, L_var2, L_var1
+        }
+
+        return L_var1;
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16tt(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            mov L_var2, L_var2, asr #16
+            mov L_var1, L_var1, asr #16
+
+            mul L_var1, L_var2, L_var1
+        }
+
+        return L_var1;
+
+    }
+
+    __inline  Int32 fxp_mac_16_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            mla L_add, L_var1, L_var2, L_add
+        }
+        return (L_add);
+    }
+
+
+    __inline  Int32 fxp_mac_16_by_16_bb(const Int32 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            mov L_var2, L_var2, asl #16
+            mov L_var2, L_var2, asr #16
+            mla L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_mac_16_by_16_bt(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            mov L_var2, L_var2, asr #16
+            mla L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+
+    __inline  Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw)
+    {
+
+        Int32 result64_hi;
+        Int32 rTmp0;
+        Int32 iTmp0;
+        __asm
+        {
+            mov rTmp0, exp_jw, asr #16
+            mov rTmp0, rTmp0, asl #16
+            mov iTmp0, exp_jw, asl #16
+            smull rTmp0, result64_hi, x, rTmp0
+            smlal iTmp0, result64_hi, y, iTmp0
+        }
+
+        return (result64_hi);
+    }
+
+
+    __inline  Int32 fxp_mul32_by_16(Int32 L_var1, Int32 L_var2)
+    {
+        Int32 result64_hi;
+        __asm
+        {
+            mov L_var2, L_var2, asl #16
+            smull L_var1, result64_hi, L_var2, L_var1
+        }
+        return (result64_hi);
+    }
+
+
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+
+
+    __inline  Int32 fxp_mul32_by_16t(Int32 L_var1, Int32 L_var2)
+    {
+
+        Int32 result64_hi;
+        __asm
+        {
+            mov L_var2, L_var2, asr #16
+            mov L_var2, L_var2, asl #16
+            smull L_var1, result64_hi, L_var2, L_var1
+        }
+        return (result64_hi);
+
+    }
+
+    __inline  Int32 fxp_mac32_by_16(Int32 L_var1, Int32 L_var2, Int32 L_add)
+    {
+
+        __asm
+        {
+            mov L_var2, L_var2, asl #16
+            smlal L_var1, L_add, L_var2, L_var1
+        }
+
+        return (L_add);
+    }
+
+
+    __inline  int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+    {
+        uint32 b = (UInt32)(sum);
+        int32 c = Int32(sum >> 32);
+        __asm
+        {
+            smlal b, c, L_var1, L_var2
+        }
+        return (((int64(c)) << 32) | b);
+    }
+
+
+    __inline  Int32 fxp_mul32_Q31(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        __asm
+        {
+            smull L_var1, result64_hi, L_var2, L_var1
+        }
+        return (result64_hi);
+    }
+
+
+    __inline  Int32 fxp_mac32_Q31(Int32 L_add,  Int32 L_var1, const Int32 L_var2)
+    {
+        __asm
+        {
+            smlal L_var1, L_add, L_var2, L_var1
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_msu32_Q31(Int32 L_sub,  Int32 L_var1, const Int32 L_var2)
+    {
+        __asm
+        {
+            rsb   L_var1, L_var1, #0
+            smlal L_var1, L_sub, L_var2, L_var1
+        }
+        return L_sub;
+    }
+
+
+    __inline  Int32 fxp_mul32_Q30(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #2
+            orr  result64_hi, result64_hi, result64_lo, lsr #30
+        }
+        return (result64_hi);
+    }
+
+
+    __inline  Int32 fxp_mac32_Q30(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            add L_add, L_add, result64_hi, asl  #2
+            add L_add, L_add, result64_lo, lsr  #30
+        }
+        return (L_add);
+    }
+
+
+    __inline  Int32 fxp_mul32_Q29(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #3
+            orr  result64_hi, result64_hi, result64_lo, lsr #29
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mac32_Q29(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            add L_add, L_add, result64_hi, asl  #3
+            add L_add, L_add, result64_lo, lsr  #29
+        }
+        return (L_add);
+    }
+
+    __inline  Int32 fxp_msu32_Q29(const Int32 L_var1, const Int32 L_var2, Int32 L_sub)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            sub L_sub, L_sub, result64_hi, asl  #3
+            sub L_sub, L_sub, result64_lo, lsr  #29
+        }
+        return (L_sub);
+    }
+
+    __inline  Int32 fxp_mul32_Q28(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #4
+            orr  result64_hi, result64_hi, result64_lo, lsr #28
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q27(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #5
+            orr  result64_hi, result64_hi, result64_lo, lsr #27
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q26(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #6
+            orr  result64_hi, result64_hi, result64_lo, lsr #26
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q20(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #12
+            orr  result64_hi, result64_hi, result64_lo, lsr #20
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q15(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #17
+            orr  result64_hi, result64_hi, result64_lo, lsr #15
+        }
+        return (result64_hi);
+    }
+
+
+
+
+    __inline  Int32 fxp_mul32_Q14(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #18
+            orr  result64_hi, result64_hi, result64_lo, lsr #14
+        }
+        return (result64_hi);
+    }
+
+
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_arm_v4_gcc.h

@@ -0,0 +1,630 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: fxp_mul32_arm_v4_gcc.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+
+
+#ifndef FXP_MUL32_V4_ARM_GCC
+#define FXP_MUL32_V4_ARM_GCC
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+
+#if defined (_ARM_V4_GCC) /* ARM_V4 GNU COMPILER  */
+
+
+#define preload_cache( a)
+
+
+    static inline  Int32 shft_lft_1(Int32 L_var1)
+    {
+        Int32 x;
+        register Int32 ra = L_var1;
+        Int32 z = INT32_MAX;
+
+        asm volatile(
+            "mov %0, %1, asl #1\n\t"
+            "teq %1, %0, asr #1\n\t"
+            "eorne   %0, %2, %1, asr #31"
+    : "=&r*i"(x)
+                    : "r"(ra),
+                    "r"(z));
+
+        return(x);
+    }
+
+    static inline Int32 fxp_mul_16_by_16bb(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %3, asl #16\n\t"
+            "mov %0, %0, asr #16\n\t"
+            "mov %1, %2, asl #16\n\t"
+            "mov %1, %1, asr #16\n\t"
+            "mul %0, %1, %0"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp1);
+
+    }
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+
+    static inline Int32 fxp_mul_16_by_16tb(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %3, asl #16\n\t"
+            "mov %0, %0, asr #16\n\t"
+            "mov %1, %2, asr #16\n\t"
+            "mul %0, %1, %0"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp1);
+
+    }
+
+
+    static inline Int32 fxp_mul_16_by_16bt(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %3, asr #16\n\t"
+            "mov %1, %2, asl #16\n\t"
+            "mov %1, %1, asr #16\n\t"
+            "mul %0, %1, %0"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp1);
+
+    }
+
+
+    static inline Int32 fxp_mul_16_by_16tt(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %3, asr #16\n\t"
+            "mov %1, %2, asr #16\n\t"
+            "mul %0, %1, %0"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (tmp1);
+
+    }
+
+
+
+    static inline  Int32 fxp_mac_16_by_16(Int16 L_var1,  Int16 L_var2, Int32 L_add)
+{
+
+        Int32 tmp;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "mla %0, %1, %2, %3"
+    : "=&r*i"(tmp)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp);
+    }
+
+
+
+    static inline Int32 fxp_mac_16_by_16_bb(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "mov %0, %3, asl #16\n\t"
+            "mov %0, %0, asr #16\n\t"
+            "mla %1, %0, %2, %4"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp2);
+    }
+
+
+
+    static inline  Int32 fxp_mac_16_by_16_bt(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+{
+
+        Int32 tmp1;
+        Int32 tmp2;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "mov %0, %3, asr #16\n\t"
+            "mla %1, %0, %2, %4"
+    : "=&r*i"(tmp1),
+            "=&r*i"(tmp2)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (tmp2);
+
+    }
+
+
+
+    static inline  Int32 cmplx_mul32_by_16(Int32 x, Int32 y, Int32 exp_jw)
+{
+
+        Int32 rTmp0;
+        Int32 iTmp0;
+        Int32 result64_hi;
+        register Int32 ra = (Int32)x;
+        register Int32 rb = (Int32)y;
+        register Int32 rc = (Int32)exp_jw;
+
+
+
+        asm volatile(
+            "mov %0, %5, asr #16\n\t"
+            "mov %1, %5, asl #16\n\t"
+            "mov %0, %0, asl #16\n\t"
+    : "=&r*i"(rTmp0),
+            "=&r*i"(iTmp0),
+            "=&r*i"(result64_hi)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+
+        asm volatile(
+            "smull %0, %2, %3, %0\n\t"
+            "smlal %1, %2, %4, %1"
+    : "=&r*i"(rTmp0),
+            "=&r*i"(iTmp0),
+            "=&r*i"(result64_hi)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (result64_hi);
+
+
+    }
+
+
+    static inline  Int32 fxp_mul32_by_16(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 rTmp0;
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %4, asl #16\n\t"
+            "smull %2, %1, %0, %3"
+    : "=&r*i"(rTmp0),
+            "=&r*i"(result64_hi),
+            "=&r*i"(result64_lo)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+
+
+    static inline  Int32 fxp_mul32_by_16t(Int32 L_var1, Int32 L_var2)
+{
+
+        Int32 rTmp0;
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+
+        asm volatile(
+            "mov %0, %4, asr #16\n\t"
+            "mov %0, %0, asl #16\n\t"
+            "smull %2, %1, %0, %3"
+    : "=&r*i"(rTmp0),
+            "=&r*i"(result64_hi),
+            "=&r*i"(result64_lo)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+
+    static inline  Int32 fxp_mac32_by_16(Int32 L_var1, Int32 L_var2, Int32 L_add)
+{
+
+        Int32 rTmp0;
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)L_var1;
+        register Int32 rb = (Int32)L_var2;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile(
+            "mov %0, %4, asl #16\n\t"
+            "mov %1, %5\n\t"
+            "smlal %2, %1, %0, %3"
+    : "=&r*i"(rTmp0),
+            "=&r*i"(result64_hi),
+            "=&r*i"(result64_lo)
+                    : "r"(ra),
+                    "r"(rb),
+                    "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+    static inline int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+{
+        sum += (int64)L_var1 * L_var2;
+        return (sum);
+    }
+
+
+    static inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add %4, %4, %0, asl #2\n\t"
+                     "add %0, %4, %1, lsr #30"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b)
+{
+
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add %0, %0, %4"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_sub;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "sub %0, %4, %0"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q31(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile(
+            "smull %1, %0, %2, %3"
+    : "=&r*i"(result64_hi),
+            "=&r*i"(result64_lo)
+                    : "r"(ra),
+                    "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #2\n\t"
+                     "orr   %0, %0, %1, lsr #30"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_add;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "add   %4, %4, %0, lsl #3\n\t"
+                     "add   %0, %4, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        register Int32 rc = (Int32)L_sub;
+
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "sub   %4, %4, %0, lsl #3\n\t"
+                     "sub   %0, %4, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb),
+                             "r"(rc));
+
+        return (result64_hi);
+    }
+
+    static inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #3\n\t"
+                     "orr   %0, %0, %1, lsr #29"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #4\n\t"
+                     "orr   %0, %0, %1, lsr #28"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+        return (result64_hi);
+    }
+
+    static inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #5\n\t"
+                     "orr   %0, %0, %1, lsr #27"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #6\n\t"
+                     "orr   %0, %0, %1, lsr #26"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #12\n\t"
+                     "orr   %0, %0, %1, lsr #20"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+    static inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2, %3\n\t"
+                     "mov %0, %0, lsl #17\n\t"
+                     "orr   %0, %0, %1, lsr #15"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+
+
+    static inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b)
+{
+        Int32 result64_hi;
+        Int32 result64_lo;
+        register Int32 ra = (Int32)a;
+        register Int32 rb = (Int32)b;
+        asm volatile("smull %1, %0, %2,  %3\n\t"
+                     "mov   %0, %0, lsl #18\n\t"
+                     "orr   %0, %0, %1, lsr #14"
+             : "=&r*i"(result64_hi),
+                     "=&r*i"(result64_lo)
+                             : "r"(ra),
+                             "r"(rb));
+
+        return (result64_hi);
+    }
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32_V4_ARM_GCC  */
+
+
+

media/libstagefright/codecs/aacdec/fxp_mul32_arm_v5.h

@@ -0,0 +1,450 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/fxp_mul32_arm_v5.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_ARM_V5
+#define FXP_MUL32_ARM_V5
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+#include "pv_audio_type_defs.h"
+
+
+#if defined(PV_ARM_V5)
+
+//#undef EXTENDED_ASM
+#define EXTENDED_ASM
+#define _ARM_V5_
+
+
+    __inline  Int32 shft_lft_1(Int32 L_var1)
+    {
+        __asm
+        {
+            qadd L_var1, L_var1, L_var1
+        }
+
+        return L_var1;
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            smulbb L_var1, L_var1, L_var2
+        }
+        return L_var1;
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16bb(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            smulbb L_var1, L_var1, L_var2
+        }
+        return L_var1;
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16tb(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            smultb L_var1, L_var1, L_var2
+        }
+        return L_var1;
+    }
+
+    __inline  Int32 fxp_mul_16_by_16tt(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            smultt L_var1, L_var1, L_var2
+        }
+        return L_var1;
+    }
+
+    __inline  Int32 fxp_mul_16_by_16bt(Int32 L_var1,  Int32 L_var2)
+    {
+        __asm
+        {
+            smulbt L_var1, L_var1, L_var2
+        }
+        return L_var1;
+    }
+
+
+
+    __inline  Int32 fxp_mac_16_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlabb L_add, L_var1, L_var2, L_add
+        }
+        return (L_add);
+    }
+
+    __inline  Int32 fxp_mac_16_by_16_bb(const Int32 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlabb L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_mac_16_by_16_bt(const Int32 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlabt L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+
+    __inline  Int32 fxp_mac_16_by_16_tb(const Int32 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlatb L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_mac_16_by_16_tt(const Int32 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlatt L_add, L_var1, L_var2, L_add
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_mac32_by_16(Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        __asm
+        {
+            smlawb L_add, L_var1, L_var2, L_add
+        }
+        return (L_add);
+    }
+
+
+    __inline  int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+    {
+        uint32 b = (UInt32)(sum);
+        int32 c = Int32(sum >> 32);
+        __asm
+        {
+            smlal b, c, L_var1, L_var2
+        }
+        return (((int64(c)) << 32) | b);
+    }
+
+
+    __inline  Int32 fxp_mac32_Q31(Int32 L_add,  Int32 L_var1, const Int32 L_var2)
+    {
+        __asm
+        {
+            smlal L_var1, L_add, L_var2, L_var1
+        }
+        return L_add;
+    }
+
+    __inline  Int32 fxp_msu32_Q31(Int32 L_sub,  Int32 L_var1, const Int32 L_var2)
+    {
+        __asm
+        {
+            rsb   L_var1, L_var1, #0
+            smlal L_var1, L_sub, L_var2, L_var1
+        }
+        return L_sub;
+    }
+
+    __inline  Int32 fxp_mul32_Q31(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        __asm
+        {
+            smull L_var1, result64_hi, L_var2, L_var1
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q30(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #2
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #30
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #30
+#endif
+        }
+        return (result64_hi);
+    }
+
+
+    __inline  Int32 fxp_mac32_Q30(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            add L_add, L_add, result64_hi, asl  #2
+            add L_add, L_add, result64_lo, lsr  #30
+        }
+        return (L_add);
+    }
+
+
+    __inline  Int32 fxp_mul32_Q29(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #3
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #29
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #29
+#endif
+        }
+        return (result64_hi);
+    }
+
+
+
+    __inline  Int32 fxp_mac32_Q29(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            add L_add, L_add, result64_hi, asl  #3
+            add L_add, L_add, result64_lo, lsr  #29
+        }
+        return (L_add);
+    }
+
+
+    __inline  Int32 fxp_msu32_Q29(const Int32 L_var1, const Int32 L_var2, Int32 L_sub)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            sub L_sub, L_sub, result64_hi, asl  #3
+            sub L_sub, L_sub, result64_lo, lsr  #29
+        }
+        return (L_sub);
+    }
+
+
+    __inline  Int32 fxp_mul32_Q28(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #4
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #28
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #28
+#endif
+
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q27(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #5
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #27
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #27
+#endif
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q26(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #6
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #26
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #26
+#endif
+
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q20(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #12
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #20
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #20
+#endif
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        __asm
+        {
+            smulwb result64_hi, L_var1, L_var2
+        }
+        return (result64_hi);
+    }
+
+#define fxp_mul32_by_16b( a, b)         fxp_mul32_by_16(a, b)
+
+    __inline  Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        __asm
+        {
+            smulwt result64_hi, L_var1, L_var2
+        }
+        return (result64_hi);
+    }
+
+    __inline  Int32 fxp_mul32_Q15(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #17
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #15
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #15
+#endif
+        }
+        return (result64_hi);
+    }
+
+
+    __inline  Int32 cmplx_mul32_by_16(Int32 L_var1, const Int32 L_var2, const Int32 cmplx)
+    {
+        Int32 result64_hi;
+
+        __asm
+        {
+            smulwt result64_hi, L_var1, cmplx
+            smlawb result64_hi, L_var2, cmplx, result64_hi
+        }
+        return (result64_hi);
+
+    }
+
+    __inline  Int32 fxp_mul32_Q14(const Int32 L_var1, const Int32 L_var2)
+    {
+        Int32 result64_hi;
+        Int32 result64_lo;
+        __asm
+        {
+            smull result64_lo, result64_hi, L_var2, L_var1
+            mov result64_hi, result64_hi, asl  #18
+#ifdef EXTENDED_ASM
+            mov result64_lo, result64_lo, lsr  #14
+            orr  result64_hi, result64_lo, result64_hi
+#else
+            orr  result64_hi, result64_hi, result64_lo, lsr #14
+#endif
+        }
+        return (result64_hi);
+    }
+
+
+#define preload_cache( a)
+
+
+
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_c_equivalent.h

@@ -0,0 +1,285 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./c/include/fxp_mul32_c_equivalent.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_C_EQUIVALENT
+#define FXP_MUL32_C_EQUIVALENT
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+
+#if defined(C_EQUIVALENT)
+
+#define preload_cache( a)
+
+    __inline  Int32 shft_lft_1(Int32 L_var1)
+    {
+        if (((L_var1 << 1) >> 1) == L_var1)
+            L_var1 <<= 1;
+        else
+            L_var1 = ((L_var1 >> 31) ^ INT32_MAX);
+
+        return (L_var1);
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16bb(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+        L_var1 = (L_var1 << 16) >> 16;
+
+        L_var1 *= L_var2;
+
+        return L_var1;
+
+    }
+
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+
+    __inline  Int32 fxp_mul_16_by_16tb(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+        L_var1 =  L_var1 >> 16;
+
+        L_var1 *= L_var2;
+
+        return L_var1;
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16bt(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = L_var2 >> 16;
+        L_var1 = (L_var1 << 16) >> 16;
+
+        L_var1 *= L_var2;
+
+        return L_var1;
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16tt(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = L_var2 >> 16;
+        L_var1 = L_var1 >> 16;
+
+        L_var1 *= L_var2;
+
+        return L_var1;
+
+    }
+
+    __inline  Int32 fxp_mac_16_by_16(Int16 L_var1,  Int16 L_var2, Int32 L_add)
+    {
+
+        L_add += L_var1 * L_var2;
+
+        return L_add;
+
+    }
+
+
+
+
+
+    __inline  Int32 fxp_mac_16_by_16_bb(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+
+        L_add += L_var1 * L_var2;
+
+        return L_add;
+
+    }
+
+
+    __inline  Int32 fxp_mac_16_by_16_bt(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        L_var2 = L_var2 >> 16;
+
+        L_add += L_var1 * L_var2;
+
+        return L_add;
+
+    }
+
+
+
+
+
+    __inline  Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw)
+    {
+        Int32  rTmp0 = (Int16)(exp_jw >> 16);
+        Int32  iTmp0 = exp_jw;
+        Int32  z;
+
+        z  = (Int32)(((int64_t)x * (rTmp0 << 16)) >> 32);
+        z += (Int32)(((int64_t)y * (iTmp0 << 16)) >> 32);
+
+        return (z);
+    }
+
+
+    __inline  Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32  z;
+
+        z = (Int32)(((int64_t) L_var1 * (L_var2 << 16)) >> 32);
+        return(z);
+    }
+
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+
+    __inline  Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32  rTmp0 = (Int16)(L_var2 >> 16);
+        Int32  z;
+
+        z = (Int32)(((int64_t) L_var1 * (rTmp0 << 16)) >> 32);
+
+        return(z);
+    }
+
+
+    __inline  Int32 fxp_mac32_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+        Int32  rTmp0 = L_var2 << 16;
+
+        L_add += (Int32)(((int64_t) L_var1 * rTmp0) >> 32);
+
+        return(L_add);
+    }
+
+    __inline  int64_t fxp_mac64_Q31(int64_t sum, const Int32 L_var1, const Int32 L_var2)
+    {
+        sum += (int64_t)L_var1 * L_var2;
+        return (sum);
+    }
+
+    __inline Int32 fxp_mul32_Q31(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 32);
+    }
+
+    __inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b)
+    {
+        return (L_add + (Int32)(((int64_t)(a) * b) >> 32));
+    }
+
+    __inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b)
+    {
+        return (L_sub - (Int32)(((int64_t)(a) * b) >> 32));
+    }
+
+
+    __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 30);
+    }
+
+    __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64_t)(a) * b) >> 30));
+    }
+
+
+    __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 29);
+    }
+
+    __inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64_t)(a) * b) >> 29));
+    }
+
+    __inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub)
+    {
+        return (L_sub - (Int32)(((int64_t)(a) * b) >> 29));
+    }
+
+
+    __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 28);
+    }
+
+    __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 27);
+    }
+
+    __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 26);
+    }
+
+    __inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 20);
+    }
+
+    __inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 15);
+    }
+
+    __inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64_t)(a) * b) >> 14);
+    }
+
+
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_c_msc_evc.h

@@ -0,0 +1,254 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: fxp_mul32_msc_evc.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+
+#ifndef FXP_MUL32_MSC_EVC
+#define FXP_MUL32_MSC_EVC
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+#if defined(PV_ARM_MSC_EVC_V4)
+
+#include "cmnintrin.h"
+
+#define preload_cache( a)
+
+    __inline  Int32 shft_lft_1(Int32 L_var1)
+    {
+        if (((L_var1 << 1) >> 1) == L_var1)
+            L_var1 <<= 1;
+        else
+            L_var1 = ((L_var1 >> 31) ^ INT32_MAX);
+
+        return L_var1;
+
+    }
+
+    __inline  Int32 fxp_mul_16_by_16bb(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+        L_var1 = (L_var1 << 16) >> 16;
+
+        return (L_var1*L_var2);
+
+    }
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+    __inline  Int32 fxp_mul_16_by_16tb(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+        L_var1 =  L_var1 >> 16;
+
+        return (L_var1*L_var2);
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16bt(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = L_var2 >> 16;
+        L_var1 = (L_var1 << 16) >> 16;
+
+        return (L_var1*L_var2);
+
+    }
+
+
+    __inline  Int32 fxp_mul_16_by_16tt(Int32 L_var1,  Int32 L_var2)
+    {
+        L_var2 = L_var2 >> 16;
+        L_var1 = L_var1 >> 16;
+
+        return (L_var1*L_var2);
+
+    }
+
+    __inline  Int32 fxp_mac_16_by_16(Int16 L_var1,  Int16 L_var2, Int32 L_add)
+    {
+        return (L_add + (L_var1*L_var2));
+    }
+
+
+
+    __inline  Int32 fxp_mac_16_by_16_bb(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        L_var2 = (L_var2 << 16) >> 16;
+
+        return (L_add + (L_var1*L_var2));
+
+    }
+
+
+    __inline  Int32 fxp_mac_16_by_16_bt(Int16 L_var1,  Int32 L_var2, Int32 L_add)
+    {
+        L_var2 = L_var2 >> 16;
+
+        return (L_add + (L_var1*L_var2));
+
+    }
+
+
+    __inline  Int32 cmplx_mul32_by_16(Int32 x, const Int32 y, Int32 exp_jw)
+    {
+        Int32  rTmp0 = (exp_jw >> 16) << 16;
+        Int32  iTmp0 = exp_jw << 16;
+        Int32  z;
+
+
+        z  = _MulHigh(rTmp0, x);
+        z += _MulHigh(iTmp0, y);
+
+        return (z);
+    }
+
+
+    __inline  Int32 fxp_mul32_by_16(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32  rTmp0 = L_var2 << 16;
+
+        return(_MulHigh(rTmp0, L_var1));
+    }
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+
+    __inline  Int32 fxp_mul32_by_16t(Int32 L_var1, const Int32 L_var2)
+    {
+        Int32  rTmp0 = (Int16)(L_var2 >> 16);
+
+        return(_MulHigh((rTmp0 << 16), L_var1));
+    }
+
+
+    __inline  Int32 fxp_mac32_by_16(const Int32 L_var1, const Int32 L_var2, Int32 L_add)
+    {
+
+        Int32  rTmp0 = (L_var2 << 16);
+
+        return(L_add + _MulHigh(rTmp0, L_var1));
+    }
+
+    __inline  int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+    {
+        sum += (int64)L_var1 * L_var2;
+        return (sum);
+    }
+
+#define fxp_mul32_Q31( a,  b)   _MulHigh( b, a)
+
+    __inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b)
+    {
+        return (L_add + _MulHigh(b, a));
+    }
+
+    __inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b)
+    {
+        return (L_sub - _MulHigh(b, a));
+    }
+
+
+    __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 30);
+    }
+
+    __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64)(a) * b) >> 30));
+    }
+
+
+    __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 29);
+    }
+
+    __inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64)(a) * b) >> 29));
+    }
+
+    __inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub)
+    {
+        return (L_sub - (Int32)(((int64)(a) * b) >> 29));
+    }
+
+
+    __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 28);
+    }
+
+    __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 27);
+    }
+
+    __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 26);
+    }
+
+    __inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 20);
+    }
+
+    __inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 15);
+    }
+
+    __inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 14);
+    }
+
+
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */

media/libstagefright/codecs/aacdec/fxp_mul32_c_msc_evc_armv5.h

@@ -0,0 +1,178 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: .fxp_mul32_msc_evc_armv5.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_MSC_EVC_ARMV5
+#define FXP_MUL32_MSC_EVC_ARMV5
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+#if defined(PV_ARM_MSC_EVC_V5)
+
+#include "armintr.h"
+#include "cmnintrin.h"
+
+#define preload_cache( a)
+
+#define shft_lft_1( L_var1)  _AddSatInt( L_var1, L_var1)
+
+#define fxp_mul_16_by_16bb( L_var1, L_var2)  _SmulLo_SW_SL( L_var1, L_var2)
+
+#define fxp_mul_16_by_16(a, b)  fxp_mul_16_by_16bb(  a, b)
+
+#define fxp_mul_16_by_16tb( L_var1, L_var2)  _SmulHiLo_SW_SL( L_var1, L_var2)
+
+#define fxp_mul_16_by_16bt( L_var1, L_var2)  _SmulLoHi_SW_SL( L_var1, L_var2)
+
+#define fxp_mul_16_by_16tt( L_var1, L_var2)  _SmulHi_SW_SL( L_var1, L_var2)
+
+#define fxp_mac_16_by_16( L_var1, L_var2, L_add)  _SmulAddLo_SW_SL( L_add, L_var1, L_var2)
+
+#define fxp_mac_16_by_16_bb(a, b, c)  fxp_mac_16_by_16(  a, b, c)
+
+#define fxp_mac_16_by_16_bt( L_var1, L_var2, L_add)  _SmulAddLoHi_SW_SL( L_add, L_var1, L_var2)
+
+
+    __inline  Int32 cmplx_mul32_by_16(Int32 L_var1, const Int32 L_var2, const Int32 cmplx)
+    {
+        Int32 result64_hi;
+
+        result64_hi = _SmulWHi_SW_SL(L_var1, cmplx);
+        result64_hi = _SmulAddWLo_SW_SL(result64_hi, L_var2, cmplx);
+
+        return (result64_hi);
+    }
+
+#define fxp_mul32_by_16( L_var1, L_var2)  _SmulWLo_SW_SL( L_var1, L_var2)
+
+#define fxp_mul32_by_16b( a, b)   fxp_mul32_by_16( a, b)
+
+#define fxp_mul32_by_16t( L_var1, L_var2)  _SmulWHi_SW_SL( L_var1, L_var2)
+
+#define fxp_mac32_by_16( L_var1, L_var2, L_add)  _SmulAddWLo_SW_SL( L_add, L_var1, L_var2)
+
+
+    __inline  int64 fxp_mac64_Q31(int64 sum, const Int32 L_var1, const Int32 L_var2)
+    {
+        sum += (int64)L_var1 * L_var2;
+        return (sum);
+    }
+
+#define fxp_mul32_Q31( a,  b)   _MulHigh( b, a)
+
+
+    __inline Int32 fxp_mac32_Q31(Int32 L_add, const Int32 a, const Int32 b)
+    {
+        return (L_add + _MulHigh(b, a));
+    }
+
+
+    __inline Int32 fxp_msu32_Q31(Int32 L_sub, const Int32 a, const Int32 b)
+    {
+        return (L_sub - _MulHigh(b, a));
+    }
+
+
+    __inline Int32 fxp_mul32_Q30(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 30);
+    }
+
+    __inline Int32 fxp_mac32_Q30(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64)(a) * b) >> 30));
+    }
+
+
+    __inline Int32 fxp_mul32_Q29(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 29);
+    }
+
+    __inline Int32 fxp_mac32_Q29(const Int32 a, const Int32 b, Int32 L_add)
+    {
+        return (L_add + (Int32)(((int64)(a) * b) >> 29));
+    }
+
+    __inline Int32 fxp_msu32_Q29(const Int32 a, const Int32 b, Int32 L_sub)
+    {
+        return (L_sub - (Int32)(((int64)(a) * b) >> 29));
+    }
+
+
+    __inline Int32 fxp_mul32_Q28(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 28);
+    }
+
+    __inline Int32 fxp_mul32_Q27(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 27);
+    }
+
+    __inline Int32 fxp_mul32_Q26(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 26);
+    }
+
+    __inline Int32 fxp_mul32_Q20(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 20);
+    }
+
+    __inline Int32 fxp_mul32_Q15(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 15);
+    }
+
+    __inline Int32 fxp_mul32_Q14(const Int32 a, const Int32 b)
+    {
+        return (Int32)(((int64)(a) * b) >> 14);
+    }
+
+
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/fxp_mul32_pentium.h

@@ -0,0 +1,55 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: .fxp_mul32_pentium.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+------------------------------------------------------------------------------
+*/
+
+#ifndef FXP_MUL32_PENTIUM
+#define FXP_MUL32_PENTIUM
+
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+#include "pv_audio_type_defs.h"
+
+
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif   /*  FXP_MUL32  */
+

media/libstagefright/codecs/aacdec/gen_rand_vector.cpp

@@ -0,0 +1,512 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from original shareware code
+
+ Description:  Modified to remove instances of pow() and sqrt(), and
+ optimized for inclusion in fixed-point version of decoder.
+
+ Description:  Modified to include comments/optimizations from code review.
+ Also, declared appropriate variables as type "const"
+
+ Description:  Adopted strategy of "one q-format per sfb" strategy, which
+ eliminated the array q-format from this function.  The q-format the
+ random vector is stored in is now returned from the function.
+
+ Description:  Completely redesigned the routine to allow a simplified
+        calculation of the adjusted noise, by eliminating the dependency
+        on the band_length. Added polynomial approximation for the
+        function 1/sqrt(power). Updated comments and pseudo-code
+
+ Description:  Modified function description, pseudocode, etc.
+
+ Description:
+    Modified casting to ensure proper operations for different platforms
+
+ Description:
+    Eliminiated access to memory for noise seed. Now a local variable is
+    used. Also unrolled loops to speed up code.
+
+ Description:
+    Modified pointer decrement to a pointer increment, to ensure proper
+    compiler behavior
+
+ Description:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:    random_array[] = Array for storage of the power-scaled
+                             random values of length "band_length"
+            Int32
+
+            band_length    = Length of random_array[]
+            const Int
+
+            pSeed          = seed for random number generator
+            Int32*
+
+            power_scale    = scale factor for this particular band
+            const Int
+
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:   Function returns the q-format the random vector is stored in.
+
+ Pointers and Buffers Modified:
+            random_array[] = filled with random numbers scaled
+            to the correct power as defined by the input value power_scale.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function generates a vector of uniformly distributed random numbers for
+ the PNS block.  The random numbers are each scaled by a scale_factor,
+ defined in Ref(2) as
+
+ 2^(scale_factor/4)
+ ------------------
+  sqrt(N*MEAN_NRG)
+
+ where N == band_length, and MEAN_NRG is defined as...
+
+         N-1
+         ___
+     1   \
+    ---   >    x(i)^2
+     N   /__
+         i=0
+
+ And x is the unscaled vector from the random number generator.
+
+ This function takes advantage of the fact that the portion of the
+ scale_factor that is divisible by 4 can be simply accounted for by varying
+ the q-format.
+
+ The scaling of the random numbers is thus broken into the
+ equivalent equation below.
+
+ 2^(scale_factor%4)   2^(floor(scale_factor/4))
+ ------------------ *
+  sqrt(N*MEAN_NRG)
+
+
+ 2^(scale_factor%4) is stored in a simple 4-element table.
+ 2^(floor(scale_factor/4) is accounted for by adjusting the q-format.
+ sqrt(N*MEAN_NRG) is calculated and implemented via a polynomial approximation.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function shall produce uniformly distributed random 32-bit integers,
+ with signed random values of average energy equal to the results of the ISO
+ code's multiplying factor discussed in the FUNCTION DESCRIPTION section.
+
+ Please see Ref (2) for a detailed description of the requirements.
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) Numerical Recipes in C     Second Edition
+        William H. Press        Saul A. Teukolsky
+        William T. Vetterling   Brian P. Flannery
+        Page 284
+
+ (2) ISO/IEC 14496-3:1999(E)
+     Part 3
+        Subpart 4.6.12 (Perceptual Noise Substitution)
+
+ (3) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her  own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    power_adj = scale_mod_4[power_scale & 3];
+
+    power = 0;
+
+    FOR (k=band_length; k > 0; k--)
+
+        *(pSeed) = *(pSeed) * 1664525L;
+        *(pSeed) = *(pSeed) + 1013904223L;
+
+        temp = (Int)(*(pSeed) >> 16);
+
+        power = power + ((temp*temp) >> 6);
+
+        *(pArray) = (Int32)temp;
+
+        pArray = pArray + 1;
+
+    ENDFOR
+
+    k = 0;
+    q_adjust = 30;
+
+    IF (power)
+    THEN
+
+        WHILE ( power > 32767)
+
+            power = power >> 1;
+            k = k + 1;
+
+        ENDWHILE
+
+        k = k - 13;
+
+        IF (k < 0)
+        THEN
+            k = -k;
+            IF ( k & 1 )
+            THEN
+                power_adj = (power_adj*SQRT_OF_2)>>14;
+            ENDIF
+            q_adjust = q_adjust - ( k >> 1);
+
+        ELSE IF (k > 0)
+        THEN
+            IF ( k & 1  )
+            THEN
+                power_adj = (power_adj*INV_SQRT_OF_2)>>14;
+            ENDIF
+            q_adjust = q_adjust + ( k >> 1);
+        ENDIF
+
+        pInvSqrtCoeff = inv_sqrt_coeff;
+
+        inv_sqrt_power  = (*(pInvSqrtCoeff)* power) >>15;
+
+        pInvSqrtCoeff = pInvSqrtCoeff + 1;
+
+        inv_sqrt_power = inv_sqrt_power + *(pInvSqrtCoeff);
+
+        pInvSqrtCoeff = pInvSqrtCoeff + 1;
+
+        FOR ( k=INV_SQRT_POLY_ORDER - 1; k>0; k--)
+
+            inv_sqrt_power  =  ( inv_sqrt_power * power)>>15;
+
+            inv_sqrt_power = inv_sqrt_power + *(pInvSqrtCoeff);
+
+            pInvSqrtCoeff = pInvSqrtCoeff + 1;
+
+        ENDFOR
+
+        inv_sqrt_power = (inv_sqrt_power*power_adj)>>13;
+
+        FOR (k=band_length; k > 0; k--)
+
+            pArray = pArray - 1;
+
+            *(pArray) = *(pArray)*inv_sqrt_power;
+
+        ENDFOR
+
+    ENDIF
+
+    q_adjust = q_adjust - (power_scale >> 2);
+
+    return q_adjust;
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "gen_rand_vector.h"
+#include    "window_block_fxp.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define     SQRT_OF_2       23170       /*    sqrt(2) in Q14  */
+#define     INV_SQRT_OF_2   11585       /*  1/sqrt(2) in Q14  */
+#define     INV_SQRT_POLY_ORDER     4
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+
+
+/*
+ *  2^([0:3]/4) = 1.0000    1.1892    1.4142    1.6818
+ */
+const UInt scale_mod_4[4] = { 16384, 19484, 23170, 27554};
+
+/*
+ *  polynomial approx. in Q12 (type Int)
+ */
+
+const Int  inv_sqrt_coeff[INV_SQRT_POLY_ORDER+1] =
+    { 4680, -17935, 27697, -22326, 11980};
+
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+Int gen_rand_vector(
+    Int32     random_array[],
+    const Int band_length,
+    Int32*   pSeed,
+    const Int power_scale)
+{
+
+    Int      k;
+    UInt     power_adj;
+    Int      q_adjust = 30;
+
+    Int32    temp;
+    Int32    seed;
+    Int32    power;
+
+    Int32*   pArray = &random_array[0];
+
+    Int32    inv_sqrt_power;
+    const Int  *pInvSqrtCoeff;
+
+    /*
+     *  The out of the random number generator is scaled is such a way
+     *  that is independent of the band length.
+     *  The output is computed as:
+     *
+     *                  x(i)
+     *  output = ------------------ * 2^(power_scale%4) 2^(floor(power_scale/4))
+     *                   bl
+     *           sqrt(  SUM x(i)^2 )
+     *                   0
+     *
+     *  bl == band length
+     */
+
+
+    /*
+     *  get 2^(power_scale%4)
+     */
+
+
+    power = 0;
+
+    seed = *pSeed;
+
+    /*
+     *  band_length is always an even number (check tables in pg.66 IS0 14496-3)
+     */
+    if (band_length < 0 || band_length > LONG_WINDOW)
+    {
+        return  q_adjust;     /*  avoid any processing on error condition */
+    }
+
+    for (k = (band_length >> 1); k != 0; k--)
+    {
+        /*------------------------------------------------
+           Numerical Recipes in C
+                    Page 284
+        ------------------------------------------------*/
+        seed *= 1664525L;
+        seed += 1013904223L;
+
+        temp =  seed >> 16;
+
+        seed *= 1664525L;
+        seed += 1013904223L;
+
+        /* shift by 6 make room for band length accumulation  */
+        power  += ((temp * temp) >> 6);
+        *pArray++ = temp;
+
+        temp    = seed >> 16;
+        power  += ((temp * temp) >> 6);
+        *pArray++ = temp;
+
+    } /* END for (k=half_band_length; k > 0; k--) */
+
+
+    *pSeed = seed;
+
+    /*
+     *  If the distribution is uniform, the power is expected to use between
+     *  28 and 27 bits, by shifting down by 13 bits the power will be a
+     *  Q15 number.
+     *  For different band lengths, the power uses between 20 and 29 bits
+     */
+
+
+    k = 0;
+
+    if (power)
+    {
+        /*
+         *    approximation requires power  between 0.5 < power < 1 in Q15.
+         */
+
+        while (power > 32767)
+        {
+            power >>= 1;
+            k++;
+        }
+
+        /*
+         *  expected power bit usage == 27 bits
+         */
+
+        k -= 13;
+
+        power_adj = scale_mod_4[power_scale & 3];
+
+        if (k < 0)
+        {
+            k = -k;
+            if (k & 1)
+            {                               /* multiply by sqrt(2)  */
+                power_adj = (UInt)(((UInt32) power_adj * SQRT_OF_2) >> 14);
+            }
+            q_adjust -= (k >> 1);    /* adjust Q instead of shifting up */
+        }
+        else if (k > 0)
+        {
+            if (k & 1)
+            {                               /* multiply by 1/sqrt(2)  */
+                power_adj = (UInt)(((UInt32) power_adj * INV_SQRT_OF_2) >> 14);
+            }
+            q_adjust += (k >> 1);   /* adjust Q instead of shifting down */
+        }
+
+        /*
+         *    Compute 1/sqrt(power), where 0.5 < power < 1.0 is approximated
+         *    using a polynomial order INV_SQRT_POLY_ORDER
+         */
+
+        pInvSqrtCoeff = inv_sqrt_coeff;
+
+        inv_sqrt_power  = (*(pInvSqrtCoeff++) * power) >> 15;
+        inv_sqrt_power += *(pInvSqrtCoeff++);
+        inv_sqrt_power  = (inv_sqrt_power * power) >> 15;
+        inv_sqrt_power += *(pInvSqrtCoeff++);
+        inv_sqrt_power  = (inv_sqrt_power * power) >> 15;
+        inv_sqrt_power += *(pInvSqrtCoeff++);
+        inv_sqrt_power  = (inv_sqrt_power * power) >> 15;
+        inv_sqrt_power += *(pInvSqrtCoeff);
+
+        inv_sqrt_power  = (inv_sqrt_power * power_adj) >> 13;
+
+        pArray = &random_array[0];
+
+        for (k = (band_length >> 1); k != 0; k--)
+        {
+            temp        = *(pArray) * inv_sqrt_power;
+            *(pArray++) = temp;
+            temp        = *(pArray) * inv_sqrt_power;
+            *(pArray++) = temp;
+        } /* END for (k=half_band_length; k > 0; k--) */
+
+    }   /* if(power) */
+
+    /*
+     *      Adjust Q with the value corresponding to 2^(floor(power_scale/4))
+     */
+
+    q_adjust  -= (power_scale >> 2);
+
+    return (q_adjust);
+
+} /* gen_rand_vector */

media/libstagefright/codecs/aacdec/gen_rand_vector.h

@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: gen_rand_vector.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Added include of pv_audio_type_defs.h
+
+ Who:                       Date:
+ Description:
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This include file contains the function declaration for gen_rand_vector.
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef gen_rand_vector_H
+#define gen_rand_vector_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+Int gen_rand_vector(
+    Int32  random_array[],
+    const Int    band_length,
+    Int32 *pSeed,
+    const Int    power_scale);
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/get_adif_header.cpp

@@ -0,0 +1,443 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: get_adif_header.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from original shareware code
+
+ Description:  Modified to pass variables by reference to eliminate use
+               of global variables.
+
+ Description:  Change to PV template, remove default config parameter,
+               move some functionality into get_prog_config().
+
+ Description: Update per code review
+              1) Add parameter pScratchPCE
+              2) Change way ADIF_ID is read in.
+              3) Fix comments
+              4) ADD a test for status != SUCCESS in loop.
+
+ Description: The ADIF_Header has now been delegated to the "scratch memory"
+ union.  This change inside s_tDec_Int_File.h had to be reflected here also.
+
+ Description: Updated the SW template to include the full pathname to the
+ source file and a slightly modified copyright header.
+
+ Who:                                   Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pVars        = pointer to the structure that contains the current state
+                   of this instance of the library, of data type pointer to
+                   tDec_Int_File
+
+    pScratchPCE  = pointer to a ProgConfig structure used as scratch in the
+                   the function get_prog_config. of data type pointer to
+                   ProgConfig
+
+ Local Stores/Buffers/Pointers Needed: None
+
+ Global Stores/Buffers/Pointers Needed: None
+
+ Outputs:
+    The function returns 0 if no error occurred, non-zero otherwise.
+
+ Pointers and Buffers Modified:
+    pVars->adif_header contents are updated with the some of the ADIF header
+           contents
+    pVars->tempProgConfig contents are overwritten with last PCE found,
+           which is most likely the first one found.
+    pVars->prog_config contents are updated with the first PCE found.
+    pVars->inputStream contents are modify in such a way that the
+           stream is moved further along in the buffer.
+    pVars->SFBWidth128 contents may be updated.
+    pVars->winSeqInfo  contents may be updated.
+    pScratchPCE        contents may be updated.
+
+ Local Stores Modified: None
+
+ Global Stores Modified: None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function reads in the ADIF Header found at the front of ADIF streams.
+ If the header is not found an error is returned. An ADIF header can contain
+ from zero to sixteen program configuration elements (PCE). This function, and
+ the rest of the library, saves and uses the first PCE found.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ Function shall not use static or global variables.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 13818-7:1997 Titled "Information technology - Generic coding
+   of moving pictures and associated audio information - Part 7: Advanced
+   Audio Coding (AAC)", Table 6.21 - Syntax of program_config_element(),
+   page 16, and section 8.5 "Program Config Element (PCE)", page 30.
+
+ (2) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+     CALL getbits(
+        neededBits = 2 * LEN_BYTE,
+        pInputStream = pInputStream)
+     MODIFYING( pInputStream )
+     RETURNING( theIDFromFile )
+
+     CALL getbits(
+        neededBits = 2 * LEN_BYTE,
+        pInputStream = pInputStream)
+     MODIFYING( pInputStream )
+     RETURNING( temp )
+
+    theIDFromFile = (theIDFromFile << (2*LEN_BYTE)) | temp;
+
+    IF (theIDFromFile != ADIF_ID)
+    THEN
+
+        pInputStream->usedBits -= (4 * LEN_BYTE);
+
+        status = -1;
+    ELSE
+        CALL getbits(
+            neededBits = LEN_COPYRT_PRES,
+            pInputStream = pInputStream)
+        MODIFYING( pInputStream )
+        RETURNING( temp )
+
+        IF (temp != FALSE) THEN
+            FOR (i = LEN_COPYRT_ID; i > 0; i--)
+               CALL getbits(
+                   neededBits = LEN_BYTE,
+                   pInputStream = pInputStream)
+               MODIFYING( pInputStream )
+
+            END FOR
+        END IF
+
+        CALL getbits(
+            neededBits = LEN_ORIG + LEN_HOME,
+            pInputStream = pInputStream)
+        MODIFYING( pInputStream )
+
+        CALL getbits(
+            neededBits = LEN_BS_TYPE,
+            pInputStream = pInputStream)
+        MODIFYING( pInputStream )
+        RETURNING( bitStreamType )
+
+        CALL getbits(
+            neededBits = LEN_BIT_RATE,
+            pInputStream = pInputStream)
+        MODIFYING( pInputStream )
+        RETURNING( pHeader->bitrate )
+
+        CALL getbits(
+            neededBits = LEN_NUM_PCE,
+            pInputStream = pInputStream)
+        MODIFYING( pInputStream )
+        RETURNING( numConfigElementsMinus1 )
+
+        FOR (  i = numConfigElementsMinus1;
+              (i >= 0) && (status == SUCCESS);
+               i--)
+
+            IF (bitStreamType == CONSTANT_RATE_BITSTREAM) THEN
+               CALL getbits(
+                   neededBits = LEN_ADIF_BF,
+                   pInputStream = pInputStream)
+               MODIFYING( pInputStream )
+            END IF
+
+            CALL get_prog_config(
+                pVars = pVars)
+            MODIFYING( pVars->prog_config )
+            RETURNING( status )
+
+        END FOR
+    END IF
+
+    RETURN (status)
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "e_adif_const.h"
+
+#include "s_progconfig.h"
+#include "s_adif_header.h"
+#include "s_bits.h"
+#include "s_mc_info.h"
+#include "s_frameinfo.h"
+#include "s_tdec_int_file.h"
+
+#include "get_prog_config.h"
+#include "ibstream.h"
+
+#include "get_adif_header.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*
+ * This constant is simply the characters 'A' 'D' 'I' 'F' compressed into
+ * a UInt32. Any possible endian problems that exist must be solved by
+ * the function that fills the buffer and getbits(), or this constant and
+ * the rest of the bit stream will not work.
+ */
+#define ADIF_ID (0x41444946)
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+Int get_adif_header(
+    tDec_Int_File *pVars,
+    ProgConfig    *pScratchPCE)
+{
+    Int          i;
+    UInt32       temp;
+    Int          numConfigElementsMinus1;
+    Int          bitStreamType;
+    UInt32       theIDFromFile;
+
+    BITS        *pInputStream = &pVars->inputStream;
+    ADIF_Header *pHeader = &pVars->scratch.adif_header;
+    Int          status  = SUCCESS;
+
+    /*
+     * The ADIF_ID field is 32 bits long, one more than what getbits() can
+     * do, so read the field in two parts. There is no point in saving the
+     * string - it either matches or it does not. If it matches, it must
+     * have been 'ADIF'
+     */
+
+    theIDFromFile = get17_n_lessbits((2 * LEN_BYTE), pInputStream);
+
+    temp          = get17_n_lessbits((2 * LEN_BYTE), pInputStream);
+
+    theIDFromFile = (theIDFromFile << (2 * LEN_BYTE)) | temp;
+
+
+    if (theIDFromFile != ADIF_ID)
+    {
+        /*
+         * Rewind the bit stream pointer so a search for ADTS header
+         * can start at the beginning.
+         */
+
+        pInputStream->usedBits -= (4 * LEN_BYTE);
+
+        /*
+         * The constant in the next line needs to be updated when
+         * error handling method is determined.
+         */
+        status = -1;
+    }
+    else
+    {
+        /*
+         * To save space, the unused fields are read in, but not saved.
+         */
+
+        /* copyright string */
+        temp =
+            get1bits(/*                LEN_COPYRT_PRES,*/
+                pInputStream);
+
+        if (temp != FALSE)
+        {
+            /*
+             * Read in and ignore the copyright string. If restoring
+             * watch out for count down loop.
+             */
+
+            for (i = LEN_COPYRT_ID; i > 0; i--)
+            {
+                get9_n_lessbits(LEN_BYTE,
+                                pInputStream);
+            } /* end for */
+
+            /*
+             * Make sure to terminate the string with '\0' if restoring
+             * the the copyright string.
+             */
+
+        } /* end if */
+
+        /* Combine the original/copy and fields into one call */
+        get9_n_lessbits(
+            LEN_ORIG + LEN_HOME,
+            pInputStream);
+
+        bitStreamType =
+            get1bits(/*                LEN_BS_TYPE,*/
+                pInputStream);
+
+        pHeader->bitrate =
+            getbits(
+                LEN_BIT_RATE,
+                pInputStream);
+
+        /*
+         * Read in all the Program Configuration Elements.
+         * For this library, only one of the up to 16 possible PCE's will be
+         * saved. Since each PCE must be read, a temporary PCE structure is
+         * used, and if that PCE is the one to use, it is copied into the
+         * single PCE. This is done inside of get_prog_config()
+         */
+
+        numConfigElementsMinus1 =  get9_n_lessbits(LEN_NUM_PCE,
+                                   pInputStream);
+
+        for (i = numConfigElementsMinus1;
+                (i >= 0) && (status == SUCCESS);
+                i--)
+        {
+            /*
+             * For ADIF contant bit rate streams, the _encoder_ buffer
+             * fullness is transmitted. This version of an AAC decoder has
+             * no use for this variable; yet it must be read in to move
+             * the bitstream pointers.
+             */
+
+            if (bitStreamType == CONSTANT_RATE_BITSTREAM)
+            {
+                getbits(
+                    LEN_ADIF_BF,
+                    pInputStream);
+            } /* end if */
+
+            pVars->adif_test = 1;
+            /* Get one program configuration element */
+            status =
+                get_prog_config(
+                    pVars,
+                    pScratchPCE);
+
+#ifdef AAC_PLUS
+
+            /*
+             *  For implicit signalling, no hint that sbr or ps is used, so we need to
+             *  check the sampling frequency of the aac content, if lesser or equal to
+             *  24 KHz, by defualt upsample, otherwise, do nothing
+             */
+            if ((pVars->prog_config.sampling_rate_idx >= 6) && (pVars->aacPlusEnabled == true) &&
+                    pVars->mc_info.audioObjectType == MP4AUDIO_AAC_LC)
+            {
+                pVars->mc_info.upsamplingFactor = 2;
+                pVars->prog_config.sampling_rate_idx -= 3;
+                pVars->mc_info.sbrPresentFlag = 1;
+                pVars->sbrDecoderData.SbrChannel[0].syncState = UPSAMPLING;
+                pVars->sbrDecoderData.SbrChannel[1].syncState = UPSAMPLING;
+            }
+#endif
+
+
+
+        } /* end for */
+
+
+    } /* end 'else' of --> if (theIDFromFile != ADIF_ID) */
+
+    return status;
+
+} /* end get_adif_header */

media/libstagefright/codecs/aacdec/get_adif_header.h

@@ -0,0 +1,95 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: get_adif_header.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Add parameter to get_adif_header() function.
+
+ Who:                                      Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ Header file for get_adif_header.c
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef GET_ADIF_HEADER_H
+#define GET_ADIF_HEADER_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_tdec_int_file.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+#define CONSTANT_RATE_BITSTREAM  (0)
+#define VARIABLE_RATE_BITSTREAM  (1)
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+Int get_adif_header(
+    tDec_Int_File *pVars,
+    ProgConfig    *pScratchPCE);
+
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/get_adts_header.cpp

@@ -0,0 +1,672 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: get_adts_header.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Remove default_config variable
+
+ Description: change enter_mc_info to set_mc_info
+
+ Description: (1) add error checking for channel_config > 2
+              (2) eliminated call to check_mc_info
+              (3) use (profile + 1) when calling set_mc_info
+              (4) use winmap when calling set_mc_info
+
+ Who:                                          Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pVars           =   Pointer to structure that holds file-scope variables.
+                        [ tDec_Int_File * ]
+
+    pSyncword       =   Pointer to variable that holds the 28-bit fixed
+                        header upon the exit of this function. [ UInt32 * ]
+
+    pInvoke         =   Pointer to variable that keeps track of how many
+                        "short" (14 bit) headers have been successfully
+                        parsed from the bitstream. [ Int * ]
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    Status = SUCCESS or ERROR CODE
+
+ Pointers and Buffers Modified:
+    pVars->prog_config   Updated with program information data as read from
+                         the ADTS header.
+
+    pSyncword            Value pointed to is updated with the contents of
+                         the 28-bit fixed header.
+
+    pInvoke              Value pointed to is updated to reflect the number
+                         of successful "short" (14 bit) headers that have
+                         been successfully parsed from the bitstream.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ Acronym Definitions
+ ADTS  Audio Data Transport Stream
+ CRC   Cyclic Redundancy Code
+
+ This function calls find_adts_syncword to find the next ADTS header.  Until
+ three consistent headers have been read, the syncword used for detection
+ consists of the 12-bit syncword and the 2-bit Layer.  After three consistent
+ headers are read, the entire fixed header is used for a robust 28-bit
+ syncword.
+
+ Configuration information is then extracted from the bitstream.
+
+ The bitstream information is packed as follows.
+ Comments about the correct interpretation of these bits are contained within
+ the code.
+
+                                      CRC_absent    sampling_rate_idx
+                                           \               / \
+                                            \             /   \
+                                             \  Profile  /     \  UNUSED
+                                              \   / \   /       \   /
+|00|01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|
+ \         _______________         / |   \  /                         \      /
+  \-------|0xFFF syncword |-------/  |   Layer == '00' for AAC         \    /
+           \-------------/           |                                  \  /
+                                     |                                   \/
+                                     ID == '1' for MPEG-2 AAC    channel_config
+       copyright_id_bit                 == '0' for MPEG-4 AAC
+          /
+    home /
+     /  /
+|26|27|28|29|30|31|32|33|34|35|36|37|38|39|40|41|42|
+  |        \  \          _____________           /
+  |         \  \--------|frame length |---------/
+  orig_copy  \           \-----------/
+              \                                  ______________________________
+        copyright_id_start                      | TOTAL HEADER LENGTH: 56 bits|
+                                                |-----------------------------|
+|43|44|45|46|47|48|49|50|51|52|53|54|55|        | FIXED    HEADER BITS 00-27  |
+  \       _______________      /  |   |         | VARIABLE HEADER BITS 28-55  |
+   \-----|buffer_fullness|----/    \ /          |_____________________________|
+          \-------------/           |
+                              headerless_frames
+
+ In addition to the bits displayed above, if the value CRC_absent is '0' an
+ additional 16 bits corresponding to a CRC word are read from the bitstream,
+ following the header.
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ After the ADTS syncword is detected, this function shall parse the
+ information residing behind the syncword in the bitstream.
+------------------------------------------------------------------------------
+ REFERENCES
+ (1) ISO/IEC 13818-7:1997(E)
+     Part 7
+        Subpart 6.2 (Audio_Data_Transport_Stream frame, ADTS)
+
+ (2) ISO/IEC 11172-3:1993(E)
+     Part 3
+        Subpart 2.4.3 The audio decoding process
+
+ (3) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC  gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those UIntending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her  own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    IF (*(pInvoke) > 3)
+
+         CALL find_adts_syncword(
+                    pSyncword,
+                   &(pVars->inputStream),
+                    LENGTH_FIXED_HEADER,
+                    MASK_28BITS);
+           RETURNING  status
+    ELSE
+
+        *(pSyncword) = SYNCWORD_15BITS;
+
+        CALL find_adts_syncword(
+                   pSyncword,
+                  &(pVars->inputStream),
+                   LENGTH_SYNCWORD,
+                   ID_BIT_FILTER);
+
+          MODIFYING  *(pSyncword) = 28-bit fixed header (long syncword)
+          RETURNING  status
+
+        CALL getbits(
+                (LENGTH_FIXED_HEADER - LENGTH_SYNCWORD),
+               &(pVars->inputStream));
+
+          MODIFYING pVars->inputStream
+          RETURNING adts_header = remaining bits in the fixed header
+
+        *(pSyncword) <<= 13;
+        *(pSyncword) = *(pSyncword) OR adts_header;
+
+        pVars->prog_config.CRC_absent  = ((UInt)(adts_header >> 12)) AND 0x0001;
+
+        lower_16 = (UInt)adts_header;
+
+        pVars->prog_config.profile = (lower_16 >> 10) AND 0x3;
+
+        pVars->prog_config.sampling_rate_idx = (lower_16 >> 6) AND 0xF;
+
+        channel_configuration = (lower_16 >> 2) AND 0x7;
+
+        channel_configuration = channel_configuration - 1;
+        pVars->prog_config.front.ele_is_cpe[0] = channel_configuration;
+
+        pVars->prog_config.front.num_ele    = 1;
+
+        pVars->prog_config.front.ele_tag[0] = 0;
+
+        pVars->prog_config.mono_mix.present = 0;
+        pVars->prog_config.stereo_mix.present = 0;
+        pVars->prog_config.matrix_mix.present = 0;
+
+        CALL set_mc_info(
+                &(pVars->mc_info),
+                &(pVars->savedMCInfo),
+                &(pVars->prog_config),
+                  pVars->pWinSeqInfo,
+                  pVars->SFBWidth128);
+          MODIFYING pVars->mc_info = multi-channel configuration information
+          RETURNING status         = SUCCESS/FAILURE
+
+        IF ( (*pInvoke) != 0)
+            CALL check_mc_info(
+                    &(pVars->mc_info),
+                    &(pVars->savedMCInfo),
+                     FALSE);
+              RETURNING status = SUCCESS/FAILURE
+        ELSE
+            CALL check_mc_info(
+                    &(pVars->mc_info),
+                    &(pVars->savedMCInfo),
+                     TRUE);
+              MODIFYING pVars->savedMCInfo = pVars->mc_info
+              RETURNING status = SUCCESS/FAILURE
+        ENDIF
+
+        IF (status == SUCCESS)
+            (*pInvoke) = (*pInvoke) + 1;
+        ELSE
+            (*pInvoke) = 0;
+        ENDIF
+
+    ENDIF
+
+    CALL getbits(
+            LENGTH_VARIABLE_HEADER,
+           &(pVars->inputStream));
+      RETURNING adts_header = 28-bits (the contents of the variable header.)
+
+    pVars->prog_config.frame_length  = ((UInt)(adts_header >> 13)) AND 0x1FFF;
+
+    lower_16 = (UInt)adts_header;
+
+    pVars->prog_config.buffer_fullness = (lower_16 >> 2) AND 0x7FF;
+
+    pVars->prog_config.headerless_frames = (lower_16 AND 0x0003);
+
+    IF (pVars->prog_config.CRC_absent == 0)
+
+        CALL getbits(
+                LENGTH_CRC,
+               &(pVars->inputStream) );
+          RETURNING pVars->prog_config.CRC_check = 16-bit CRC
+
+    ENDIF
+
+    pVars->default_config = 0;
+
+    IF (byte_align_offset > 7)
+        status = 1;
+    ENDIF
+
+    return (status);
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_bits.h"
+#include "s_tdec_int_file.h"
+#include "ibstream.h"
+#include "set_mc_info.h"
+#include "find_adts_syncword.h"
+#include "get_adts_header.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+#define LENGTH_VARIABLE_HEADER  28
+#define LENGTH_FIXED_HEADER     28
+#define LENGTH_SYNCWORD         15
+#define LENGTH_CRC              16
+
+#define ID_BIT_FILTER           0x7FFB
+#define SYNCWORD_15BITS         0x7FF8
+#define MASK_28BITS             0x0FFFFFFFL
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Int get_adts_header(
+    tDec_Int_File *pVars,
+    UInt32        *pSyncword,
+    Int           *pInvoke,
+    Int            CorrectlyReadFramesCount)
+{
+    UInt32 adts_header;
+    UInt   lower_16;
+    Int    status = SUCCESS;
+    UInt   channel_configuration;
+
+    /*
+     * Search for the LONG ADTS syncword (comprised of the entire fixed header)
+     * if the number of CorrectlyReadFrames is > CorrectlyReadFramesCount
+     *
+     * Otherwise, search for just the short syncword.
+     */
+    if (*(pInvoke) > CorrectlyReadFramesCount)
+    {
+        /*
+         * Find the long ADTS syncword
+         * (comprised of the entire ADTS fixed header)
+         */
+
+        status = find_adts_syncword(pSyncword,
+                                    &(pVars->inputStream),
+                                    LENGTH_FIXED_HEADER,
+                                    MASK_28BITS);
+    }
+    else
+    {
+
+        *(pSyncword) = SYNCWORD_15BITS;
+
+        status = find_adts_syncword(pSyncword,
+                                    &(pVars->inputStream),
+                                    LENGTH_SYNCWORD,
+                                    ID_BIT_FILTER);
+
+        /*
+         *  Extract the data from the header following the syncword
+         */
+        adts_header = getbits((LENGTH_FIXED_HEADER - LENGTH_SYNCWORD),
+                              &(pVars->inputStream));
+
+        *(pSyncword) <<= (LENGTH_FIXED_HEADER - LENGTH_SYNCWORD);
+        *(pSyncword)  |= adts_header;
+
+        /* Denotes whether a CRC check should be performed */
+        pVars->prog_config.CRC_absent  = ((UInt)(adts_header >> 12)) & 0x0001;
+
+        /*
+         * All the unread bits in adts_header reside in the lower
+         * 16-bits at this point.  Perform a typecast for faster
+         * execution on 16-bit processors.
+         */
+        lower_16 = (UInt)adts_header;
+
+        /*
+         * Profile consists of 2 bits, which indicate
+         * the profile used.
+         *
+         * '00' AAC_MAIN profile
+         * '01' AAC_LC (Low Complexity) profile
+         * '10' AAC_SSR (Scaleable Sampling Rate) profile
+         * '11' AAC_LTP (Long Term Prediction) profile
+         */
+        pVars->prog_config.profile = (lower_16 >> 10) & 0x3;
+
+        if (pVars->prog_config.profile == MP4AUDIO_AAC_SSR)
+        {
+            status = 1;     /* Not supported */
+        }
+
+        /*
+         * Sampling_rate_idx consists of 4 bits
+         * see Ref #1 for their interpretation.
+         */
+        pVars->prog_config.sampling_rate_idx = (lower_16 >> 6) & 0xF;
+
+        /*
+         * private_bit is a bit for private use.  ISO/IEC will not make
+         * use of this bit in the future.
+         *
+         * We currently make no use of it, but parsing the information
+         * from the bitstream could be easily implemented with the
+         * following instruction...
+         *
+         * private_bit = (lower_16 & 0x0400) >> 10;
+         */
+
+        /*
+         * These 3 bits indicate the channel configuration used.
+         *
+         * If '0' then the channel configuration is unspecified here,
+         * and must be given by a program configuration element in
+         * the raw data block.
+         *
+         * If '1' then the channel configuration is MONO.
+         * If '2' then the channel configuration is STEREO
+         *
+         * 3-7 represent channel configurations which this library
+         * will not support in the forseeable future.
+         */
+        channel_configuration = (lower_16 >> 2) & 0x7;
+        /* do not support more than 2 channels */
+        if (channel_configuration > 2)
+        {
+            status = 1;
+        }
+
+        /*
+         * The following 2 bits encode copyright information.
+         * original_copy is '0' if there is no copyright in the bitstream.
+         *                  '1' if the bitstream is copyright protected.
+         *
+         * home is '0' for a copy, '1' for an original.
+         *
+         * PacketVideo currently does nothing with this information,
+         * however, parsing the data from the bitstream could be easily
+         * implemented with the following instructions...
+         *
+         * original_copy = (lower_16 >> 1) & 0x1;
+         *
+         * home = (lower_16 & 0x1);
+         *
+         */
+
+        /* Set up based on information extracted from the ADTS FIXED header */
+
+        /* This equals 1 for STEREO, 0 for MONO */
+        if (channel_configuration)
+        {
+            channel_configuration--;
+        }
+        pVars->prog_config.front.ele_is_cpe[0] = channel_configuration;
+
+        /* This value is constant for both MONO and STEREO */
+        pVars->prog_config.front.num_ele    = 1;
+
+        /* ADTS does not specify this tag value - do we even use it? */
+        pVars->prog_config.front.ele_tag[0] = 0;
+
+        /* Disable all mix related variables */
+        pVars->prog_config.mono_mix.present = 0;
+        pVars->prog_config.stereo_mix.present = 0;
+        pVars->prog_config.matrix_mix.present = 0;
+
+        /* enter configuration into MC_Info structure */
+        if (status == SUCCESS)
+        {
+            /* profile + 1 == audioObjectType */
+            status =
+                set_mc_info(
+                    &(pVars->mc_info),
+                    (tMP4AudioObjectType)(pVars->prog_config.profile + 1),
+                    pVars->prog_config.sampling_rate_idx,
+                    pVars->prog_config.front.ele_tag[0],
+                    pVars->prog_config.front.ele_is_cpe[0],
+                    pVars->winmap, /* changed from pVars->pWinSeqInfo, */
+                    pVars->SFBWidth128);
+
+        } /* if (status == SUCCESS) */
+
+
+#ifdef AAC_PLUS
+
+        /*
+         *  For implicit signalling, no hint that sbr or ps is used, so we need to
+         *  check the sampling frequency of the aac content, if lesser or equal to
+         *  24 KHz, by defualt upsample, otherwise, do nothing
+         */
+        if ((pVars->prog_config.sampling_rate_idx >= 6) && (pVars->aacPlusEnabled == TRUE))
+        {
+            pVars->mc_info.upsamplingFactor = 2;
+            pVars->prog_config.sampling_rate_idx -= 3;
+            pVars->mc_info.sbrPresentFlag = 1;
+            pVars->sbrDecoderData.SbrChannel[0].syncState = SBR_ACTIVE;
+            pVars->sbrDecoderData.SbrChannel[1].syncState = SBR_ACTIVE;
+        }
+#endif
+
+
+        /*
+         * The tag and is_cpe will be checked in huffdecode,
+         * remove this check routine.
+         */
+        /*if (status == SUCCESS)
+         *{
+         *   if ( (*pInvoke) != 0)
+         *   {
+         *       status =
+         *           check_mc_info(
+         *               &(pVars->mc_info),
+         *               &(pVars->savedMCInfo),
+         *               FALSE);
+         *   }
+         *   else
+         *   {
+         *       status =
+         *           check_mc_info(
+         *               &(pVars->mc_info),
+         *               &(pVars->savedMCInfo),
+         *               TRUE);
+         *   }
+         *
+         *}*/ /* if (status == SUCCESS) */
+
+        /*
+         * This keeps track of how many headers have been read in the file.
+         * After the three successful headers with the same configuration
+         * are read in, the entire ADTS fixed header is used as the syncword
+         * for a more robust 28-bit long syncword
+         */
+
+        if (status == SUCCESS)
+        {
+            (*pInvoke)++;
+        }
+        else
+        {
+            (*pInvoke) = 0;
+        }
+
+    } /* END if (*(pInvoke) > 3) */
+
+    /* Grab the bits in the ADTS variable header */
+    adts_header = getbits(
+                      LENGTH_VARIABLE_HEADER,
+                      &(pVars->inputStream));
+    /*
+     * copyright_identification bit is a single bit of the 72-bit
+     * copyright_id field.  This consists of a 8-bit copyright identifier
+     * and a 64-bit copyright_number.  72 headers must be decoded
+     * to reconstruct the entire copyright_id field.
+     *
+     * copyright_identification_start is a single bit flagging
+     * the beginning bit of the copyright_id field.  '1' for start of
+     * copyright_id, '0' otherwise.
+     *
+     *
+     * PacketVideo currently does nothing with this information,
+     * however, parsing the data from the bitstream could be easily
+     * implemented with the following instructions...
+     *
+     * copyright_id_bit = ((UInt)(adts_header >> 27)) & 0x1;
+     *
+     * copyright_id_start = ((UInt)(adts_header >> 26)) & 0x1;
+     */
+
+    /*
+     * frame_length is a 13-bit field which indicates the length,
+     * in bytes, of the frame including error_check and headers.
+     * This information can theoretically be used to help verify syncwords.
+     */
+    pVars->prog_config.frame_length  = ((UInt)(adts_header >> 13)) & 0x1FFF;
+
+    /*
+     * All the unread bits in adts_header reside in the lower
+     * 16-bits at this point.  Perform a typecast for faster
+     * execution on 16-bit processors.
+     */
+    lower_16 = (UInt)adts_header;
+
+    /*
+     * Indicates the number of 32-bit words remaining in the
+     * encoder buffer after the encoding of the first raw
+     * data block.  This value is 0x7ff for variable bit
+     * rate encoders, since buffer fullness does not apply
+     * to Variable Bit Rate (VBR) encoders.
+     */
+    pVars->prog_config.buffer_fullness = (lower_16 >> 2) & 0x7FF;
+
+    /*
+     * headerless_frames indicates the number of
+     * frames with no headers to be processed before the reading
+     * in of the next header.
+     *
+     * In ADTS, up to 4 "no header frames" can exist between
+     * syncwords.
+     *
+     * EXAMPLES:
+     *
+     * Legend: (Sync words denoted by X, frames
+     * deonted by FRAME_#)
+     *
+     * Example(1): The ADTS sequence below packs 5
+     * frames per header.
+     * Here, headerless_frames would always be read in as "4"
+     *
+     * |X||FRAME_0||FRAME_1||FRAME_2||FRAME_3||FRAME_4||X||FRAME_0|
+     *
+     * Example(2): The ADTS sequence below packs 1 frame per header.
+     * Here, headerless_frames would always be read in as "0"
+     *
+     * |X||FRAME_0||X||FRAME_1||X||FRAME_2|
+     *
+     */
+    pVars->prog_config.headerless_frames = (lower_16 & 0x0003);
+
+    if (pVars->prog_config.CRC_absent == 0)
+    {
+        pVars->prog_config.CRC_check = (UInt)getbits(
+                                           LENGTH_CRC,
+                                           &(pVars->inputStream));
+    }
+
+    /* pVars->current_program = 0; */ /* shall be set after PCE is read */
+
+    return (status);
+
+} /* END get_adts_header */

media/libstagefright/codecs/aacdec/get_adts_header.h

@@ -0,0 +1,90 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/get_adts_header.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                       Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This include file has the function declaration for get_adts_header().
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef GET_ADTS_HEADER_H
+#define GET_ADTS_HEADER_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_tdec_int_file.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+Int get_adts_header(
+    tDec_Int_File *pVars,
+    UInt32        *pSyncword,
+    Int           *pInvoke,
+    Int            CorrectlyReadFramesCount);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif
+
+

media/libstagefright/codecs/aacdec/get_audio_specific_config.cpp

@@ -0,0 +1,691 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./src/get_audio_specific_config.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description: Modified per review comments
+
+ Description: Modified per second review comments
+              (1) change audioObjectType to Int
+              (2) do not set pVars->prog_config.profile
+              (3) clean up status flag, default to SUCCESS
+              (4) fix multiple lines comments
+
+ Description: Change getbits.h to ibstream.h
+
+ Description: Modified per review comments
+              (1) updated revision history
+              (2) declare audioObjectType as enum type
+
+ Description: Replace some instances of getbits to get9_n_lessbits
+              when the number of bits read is 9 or less.
+
+ Description: Added support for backward and non-backward (explicit)
+              mode for Parametric Stereo (PS) used in enhanced AAC+
+
+ Who:                              Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pVars = pointer to the structure that holds all information for
+            this instance of the library. pVars->prog_config is directly
+            used, and pVars->mc_info, pVars->prog_config,
+            pVars->pWinSeqInfo, pVars->SFBWidth128 are needed indirectly
+            for calling set_mc_info. Data type pointer to tDec_Int_File
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    status = 0 if successfully decoded AudioSpecificConfig
+             1 if un-supported config is used for this release
+
+ Pointers and Buffers Modified:
+    pVars->prog_config contents are updated with the information read in.
+    pVars->mc_info contents are updated with channel information.
+    pVars->pWinSeqInfo contents are updated with window information.
+    pVars->SFBWidth128 contents are updated with scale factor band width data.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function reads the bitstream for the structure "AudioSpecificConfig",
+ and sets the decoder configuration that is needed by the decoder to be able
+ to decode the media properly.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function shall not use global variables
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 14496-3: 1999(E)
+ Part 3
+ Subpart 1  p18     1.6   Interface to MPEG-4 Systems
+ Subpart 4  p13     4.4.1 GA Specific Configuration
+ Amendment  p10     6.2.1 AudioSpecificInfo
+ Amendment  p78     8.2   Decoder configuration (GASpecificConfig)
+
+ (2) AAC DecoderSpecificInfo Information
+   PacketVideo descriptions - San Diego
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    status = SUCCESS;
+
+    pInputStream = &(pVars->inputStream);
+
+    temp = CALL getbits(
+                    neededBits = LEN_OBJ_TYPE + LEN_SAMP_RATE_IDX,
+                    pInputStream = pInputStream)
+           MODIFYING (pInputStream)
+           RETURNING (temp)
+
+    audioObjectType = (temp & 0x1f0) >> 4;
+
+    pVars->prog_config.profile = audioObjectType;
+
+    pVars->prog_config.sampling_rate_idx = temp & 0xf;
+
+    IF (pVars->prog_config.sampling_rate_idx == 0xf)
+    THEN
+        sampling_rate = CALL getbits(
+                            neededBits = LEN_SAMP_RATE,
+                            pInputStream = pInputStream);
+                        MODIFYING (pInputStream)
+                        RETURNING (sampling_rate)
+    ENDIF
+
+    channel_config = CALL getbits(
+                            neededBits = LEN_CHAN_CONFIG,
+                            pInputStream = pInputStream);
+                        MODIFYING (pInputStream)
+                        RETURNING (channel_config)
+
+    IF (channel_config > 2)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (((audioObjectType == MP4AUDIO_AAC_MAIN)     OR
+        (audioObjectType == MP4AUDIO_AAC_LC)        OR
+        (audioObjectType == MP4AUDIO_AAC_SSR)       OR
+        (audioObjectType == MP4AUDIO_LTP)           OR
+        (audioObjectType == MP4AUDIO_AAC_SCALABLE)  OR
+        (audioObjectType == MP4AUDIO_TWINVQ)) AND (status == -1))
+    THEN
+        status = CALL get_GA_specific_config(
+                            pVars = pVars,
+                            channel_config = channel_config,
+                            audioObjectType = audioObjectType,
+                            pInputStream = pInputStream);
+                      MODIFYING (pVars->mc_info,channel_config,pInputStream)
+                      RETURNING (status)
+
+    ENDIF
+
+    IF (audioObjectType == MP4AUDIO_CELP)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (audioObjectType == MP4AUDIO_HVXC)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (audioObjectType == MP4AUDIO_TTSI)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF ((audioObjectType == 13) OR (audioObjectType == 14) OR
+        (audioObjectType == 15) OR (audioObjectType == 16))
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (((audioObjectType == MP4AUDIO_ER_AAC_LC)       OR
+         (audioObjectType == MP4AUDIO_ER_AAC_LTP)      OR
+         (audioObjectType == MP4AUDIO_ER_AAC_SCALABLE) OR
+         (audioObjectType == MP4AUDIO_ER_TWINVQ)       OR
+         (audioObjectType == MP4AUDIO_ER_BSAC)         OR
+         (audioObjectType == MP4AUDIO_ER_AAC_LD)) AND (status == -1))
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (audioObjectType == MP4AUDIO_ER_CELP)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF (audioObjectType == MP4AUDIO_ER_HVXC)
+    THEN
+        status = 1;
+    ENDIF
+
+    IF ((audioObjectType == MP4AUDIO_ER_HILN) OR
+        (audioObjectType == MP4AUDIO_PARAMETRIC))
+    THEN
+        status = 1;
+    ENDIF
+
+    IF ((audioObjectType == MP4AUDIO_ER_AAC_LC)       OR
+        (audioObjectType == MP4AUDIO_ER_AAC_LTP)      OR
+        (audioObjectType == MP4AUDIO_ER_AAC_SCALABLE) OR
+        (audioObjectType == MP4AUDIO_ER_TWINVQ)       OR
+        (audioObjectType == MP4AUDIO_ER_BSAC)         OR
+        (audioObjectType == MP4AUDIO_ER_AAC_LD)       OR
+        (audioObjectType == MP4AUDIO_ER_CELP)         OR
+        (audioObjectType == MP4AUDIO_ER_HVXC)         OR
+        (audioObjectType == MP4AUDIO_ER_HILN)         OR
+        (audioObjectType == MP4AUDIO_PARAMETRIC))
+    THEN
+        epConfig = CALL getbits(
+                            neededBits = LEN_EP_CONFIG,
+                            pInputStream = pInputStream);
+                      MODIFYING (pInputStream)
+                      RETURNING (epConfig)
+
+        IF (epConfig == 2)
+        THEN
+            status = 1;
+        ENDIF
+
+    ENDIF
+
+    RETURN status;
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "e_mp4ff_const.h"
+#include    "e_tmp4audioobjecttype.h"
+#include    "get_audio_specific_config.h"
+#include    "get_ga_specific_config.h"
+#include    "ibstream.h"
+#include    "sfb.h"                   /* Where samp_rate_info[] is declared */
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+Int get_audio_specific_config(tDec_Int_File   * const pVars)
+{
+
+    UInt    temp;
+    tMP4AudioObjectType     audioObjectType;
+    //UInt32  sampling_rate;
+    UInt    channel_config;
+    UInt    syncExtensionType;
+    UInt    extensionAudioObjectType = 0;
+    UInt    extensionSamplingFrequencyIndex = 0;
+    BITS   *pInputStream;
+    Int     status;
+
+    status = SUCCESS;
+
+    pInputStream = &(pVars->inputStream);
+
+    pVars->mc_info.upsamplingFactor = 1;   /*  default to regular AAC */
+
+    temp =  get9_n_lessbits(LEN_OBJ_TYPE + LEN_SAMP_RATE_IDX,
+                            pInputStream);
+
+    /*
+     * The following code can directly set the values of elements in
+     * MC_Info, rather than first setting the values in pVars->prog_config
+     * and then copy these values to MC_Info by calling set_mc_info.
+     * In order to keep consistent with get_prog_config (ADIF) and
+     * get_adts_header (ADTS), the code here is still copying
+     * the info, and set the pVars->current_program = 0
+     */
+
+    /* AudioObjectType */
+    audioObjectType = (tMP4AudioObjectType)((temp & 0x1f0) >> 4);
+
+    pVars->mc_info.ExtendedAudioObjectType =  audioObjectType;   /* default */
+    /* saving an audioObjectType into a profile field */
+    /* pVars->prog_config.profile = audioObjectType; */
+
+    /* sampling rate index */
+    pVars->prog_config.sampling_rate_idx = temp & 0xf;
+
+    if (pVars->prog_config.sampling_rate_idx > 0xb)
+    {
+        /*
+         *  Only support 12 sampling frequencies from array samp_rate_info ( see sfb.cpp)
+         *  7350 Hz (index 0xc) is not supported, the other indexes are reserved or escape
+         */
+        if (pVars->prog_config.sampling_rate_idx == 0xf) /* escape sequence */
+        {
+            /*
+             * sampling rate not listed in Table 1.6.2,
+             * this release does not support this
+             */
+            /*sampling_rate =  getbits( LEN_SAMP_RATE,
+                                      pInputStream);*/
+            getbits(LEN_SAMP_RATE, pInputStream); /* future use */
+        }
+
+        status = 1;
+    }
+
+    channel_config =  get9_n_lessbits(LEN_CHAN_CONFIG,
+                                      pInputStream);
+
+    if ((channel_config > 2) && (!pVars->aacConfigUtilityEnabled))
+    {
+        /*
+         * AAC lib does not support more than two channels
+         * signal error when in decoder mode
+         * do not test when in utility mode
+         */
+        status = 1;
+
+    }
+
+    if (audioObjectType == MP4AUDIO_SBR || audioObjectType == MP4AUDIO_PS)
+    {
+        /* to disable explicit backward compatiblity check */
+        pVars->mc_info.ExtendedAudioObjectType = MP4AUDIO_SBR;
+        pVars->mc_info.sbrPresentFlag = 1;
+
+        if (audioObjectType == MP4AUDIO_PS)
+        {
+            pVars->mc_info.psPresentFlag = 1;
+            pVars->mc_info.ExtendedAudioObjectType = MP4AUDIO_PS;
+        }
+
+        extensionSamplingFrequencyIndex = /* extensionSamplingFrequencyIndex */
+            get9_n_lessbits(LEN_SAMP_RATE_IDX,
+                            pInputStream);
+        if (extensionSamplingFrequencyIndex == 0x0f)
+        {
+            /*
+             * sampling rate not listed in Table 1.6.2,
+             * this release does not support this
+                */
+            /*sampling_rate = getbits( LEN_SAMP_RATE,
+                                     pInputStream);*/
+            getbits(LEN_SAMP_RATE, pInputStream);
+        }
+
+        audioObjectType = (tMP4AudioObjectType) get9_n_lessbits(LEN_OBJ_TYPE ,
+                          pInputStream);
+    }
+
+
+    if ((/*(audioObjectType == MP4AUDIO_AAC_MAIN)     ||*/
+                (audioObjectType == MP4AUDIO_AAC_LC)        ||
+                /*(audioObjectType == MP4AUDIO_AAC_SSR)       ||*/
+                (audioObjectType == MP4AUDIO_LTP)           /*||*/
+                /*(audioObjectType == MP4AUDIO_AAC_SCALABLE)  ||*/
+                /*(audioObjectType == MP4AUDIO_TWINVQ)*/) && (status == SUCCESS))
+    {
+        status = get_GA_specific_config(pVars,
+                                        pInputStream,
+                                        channel_config,
+                                        audioObjectType);
+
+        /*
+         *  verify that Program config returned a supported audio object type
+         */
+
+        if ((pVars->mc_info.audioObjectType != MP4AUDIO_AAC_LC) &&
+                (pVars->mc_info.audioObjectType != MP4AUDIO_LTP))
+        {
+            return 1;   /* status != SUCCESS invalid aot */
+        }
+    }
+    else
+    {
+        return 1;   /* status != SUCCESS invalid aot or invalid parameter */
+    }
+
+    /*
+     *  SBR tool explicit signaling ( backward compatible )
+     */
+    if (extensionAudioObjectType != MP4AUDIO_SBR)
+    {
+        syncExtensionType = (UInt)get17_n_lessbits(LEN_SYNC_EXTENSION_TYPE,
+                            pInputStream);
+
+        if (syncExtensionType == 0x2b7)
+        {
+            extensionAudioObjectType = get9_n_lessbits( /* extensionAudioObjectType */
+                                           LEN_OBJ_TYPE,
+                                           pInputStream);
+
+            if (extensionAudioObjectType == MP4AUDIO_SBR)
+            {
+                pVars->mc_info.sbrPresentFlag = get1bits(pInputStream);  /* sbrPresentFlag */
+                if (pVars->mc_info.sbrPresentFlag == 1)
+                {
+                    extensionSamplingFrequencyIndex =
+                        get9_n_lessbits( /* extensionSamplingFrequencyIndex */
+                            LEN_SAMP_RATE_IDX,
+                            pInputStream);
+                    if (pVars->aacPlusEnabled == true)
+                    {
+#ifdef AAC_PLUS
+                        pVars->mc_info.upsamplingFactor = (samp_rate_info[extensionSamplingFrequencyIndex].samp_rate >> 1) ==
+                                                          samp_rate_info[pVars->prog_config.sampling_rate_idx].samp_rate ? 2 : 1;
+
+                        if ((Int)extensionSamplingFrequencyIndex == pVars->prog_config.sampling_rate_idx)
+                        {
+                            /*
+                             *  Disable SBR decoding for any sbr-downsampled file whose SF is >= 24 KHz
+                             */
+                            if (pVars->prog_config.sampling_rate_idx < 6)
+                            {
+                                pVars->aacPlusEnabled = false;
+                            }
+
+                            pVars->mc_info.bDownSampledSbr = true;
+                        }
+                        pVars->prog_config.sampling_rate_idx = extensionSamplingFrequencyIndex;
+
+#endif
+                    }
+
+                    if (extensionSamplingFrequencyIndex == 0x0f)
+                    {
+                        /*
+                         * sampling rate not listed in Table 1.6.2,
+                         * this release does not support this
+                         */
+                        /*sampling_rate = getbits( LEN_SAMP_RATE,
+                                                 pInputStream);*/
+                        getbits(LEN_SAMP_RATE, pInputStream);
+                    }
+                    /* syncExtensionType */
+                    syncExtensionType = (UInt)get17_n_lessbits(LEN_SYNC_EXTENSION_TYPE,
+                                        pInputStream);
+                    if (syncExtensionType == 0x548)
+                    {
+                        pVars->mc_info.psPresentFlag = get1bits(pInputStream);  /* psPresentFlag */
+                        if (pVars->mc_info.psPresentFlag)
+                        {
+                            extensionAudioObjectType = MP4AUDIO_PS;
+                        }
+                    }
+                    else
+                    {
+                        /*
+                        * Rewind bitstream pointer so that the syncExtensionType reading has no
+                        * effect when decoding raw bitstream
+                            */
+                        pVars->inputStream.usedBits -= LEN_SYNC_EXTENSION_TYPE;
+                    }
+
+                    pVars->mc_info.ExtendedAudioObjectType = (eMP4AudioObjectType)extensionAudioObjectType;
+                }
+            }
+        }
+        else if (!status)
+        {
+            /*
+             * Rewind bitstream pointer so that the syncExtensionType reading has no
+             * effect when decoding raw bitstream
+             */
+            pVars->inputStream.usedBits -= LEN_SYNC_EXTENSION_TYPE;
+
+#ifdef AAC_PLUS
+
+            /*
+             *  For implicit signalling, no hint that sbr or ps is used, so we need to
+             *  check the sampling frequency of the aac content, if lesser or equal to
+             *  24 KHz, by defualt upsample, otherwise, do nothing
+             */
+            if ((pVars->prog_config.sampling_rate_idx >= 6) && (pVars->aacPlusEnabled == true) &&
+                    audioObjectType == MP4AUDIO_AAC_LC)
+            {
+                pVars->mc_info.upsamplingFactor = 2;
+                pVars->prog_config.sampling_rate_idx -= 3;
+                pVars->mc_info.sbrPresentFlag = 1;
+                pVars->sbrDecoderData.SbrChannel[0].syncState = SBR_NOT_INITIALIZED;
+                pVars->sbrDecoderData.SbrChannel[1].syncState = SBR_NOT_INITIALIZED;
+
+            }
+#endif
+
+        }
+    }
+    else    /*  MP4AUDIO_SBR was detected  */
+    {
+        /*
+         *  Set the real output frequency use by the SBR tool, define tentative upsample ratio
+         */
+        if (pVars->aacPlusEnabled == true)
+        {
+#ifdef AAC_PLUS
+            pVars->mc_info.upsamplingFactor = (samp_rate_info[extensionSamplingFrequencyIndex].samp_rate >> 1) ==
+                                              samp_rate_info[pVars->prog_config.sampling_rate_idx].samp_rate ? 2 : 1;
+
+            if ((Int)extensionSamplingFrequencyIndex == pVars->prog_config.sampling_rate_idx)
+            {
+                /*
+                 *  Disable SBR decoding for any sbr-downsampled file whose SF is >= 24 KHz
+                 */
+                if (pVars->prog_config.sampling_rate_idx < 6)
+                {
+                    pVars->aacPlusEnabled = false;
+                }
+                pVars->mc_info.bDownSampledSbr = true;
+            }
+            pVars->prog_config.sampling_rate_idx = extensionSamplingFrequencyIndex;
+
+
+
+#endif
+
+
+
+
+        }
+
+    }  /*  if ( extensionAudioObjectType != MP4AUDIO_SBR ) */
+
+    /*
+     * The following object types are not supported in this release,
+     * however, keep these interfaces for future implementation
+     */
+
+    /*
+     *if (audioObjectType == MP4AUDIO_CELP)
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if (audioObjectType == MP4AUDIO_HVXC)
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if (audioObjectType == MP4AUDIO_TTSI)
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if ((audioObjectType == 13) || (audioObjectType == 14) ||
+     *   (audioObjectType == 15) || (audioObjectType == 16))
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /* The following objects are Amendment 1 objects */
+    /*
+     *if (((audioObjectType == MP4AUDIO_ER_AAC_LC)       ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_LTP)      ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_SCALABLE) ||
+     *    (audioObjectType == MP4AUDIO_ER_TWINVQ)       ||
+     *    (audioObjectType == MP4AUDIO_ER_BSAC)         ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_LD)) && (status == -1))
+     *{
+     */
+    /*
+     * should call get_GA_specific_config
+     * for this release, do not support Error Resilience
+     * temporary solution is set status flag and exit decoding
+     */
+    /*    status = 1;
+    *}
+    */
+
+    /*
+     *if (audioObjectType == MP4AUDIO_ER_CELP)
+     * {
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if (audioObjectType == MP4AUDIO_ER_HVXC)
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if ((audioObjectType == MP4AUDIO_ER_HILN) ||
+     *    (audioObjectType == MP4AUDIO_PARAMETRIC))
+     *{
+     *    status = 1;
+     *}
+     */
+
+    /*
+     *if ((audioObjectType == MP4AUDIO_ER_AAC_LC)       ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_LTP)      ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_SCALABLE) ||
+     *    (audioObjectType == MP4AUDIO_ER_TWINVQ)       ||
+     *    (audioObjectType == MP4AUDIO_ER_BSAC)         ||
+     *    (audioObjectType == MP4AUDIO_ER_AAC_LD)       ||
+     *    (audioObjectType == MP4AUDIO_ER_CELP)         ||
+     *    (audioObjectType == MP4AUDIO_ER_HVXC)         ||
+     *    (audioObjectType == MP4AUDIO_ER_HILN)         ||
+     *    (audioObjectType == MP4AUDIO_PARAMETRIC))
+     *{
+     */
+    /* error protection config */
+    /*
+     *     epConfig =
+     *       getbits(
+     *           LEN_EP_CONFIG,
+     *           pInputStream);
+     *
+     *   if (epConfig == 2)
+     *   {
+     */
+    /* should call ErrorProtectionSpecificConfig() */
+    /*
+     *       status = 1;
+     *   }
+     *
+     *}
+     */
+
+    return status;
+
+}

media/libstagefright/codecs/aacdec/get_audio_specific_config.h

@@ -0,0 +1,86 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: ./include/get_audio_specific_config.h
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Who:                              Date:
+ Description:
+
+------------------------------------------------------------------------------
+ INCLUDE DESCRIPTION
+
+ This file includes function declaration for get_audio_specific_config
+
+------------------------------------------------------------------------------
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef GET_AUDIO_SPECIFIC_CONFIG_H
+#define GET_AUDIO_SPECIFIC_CONFIG_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include    "pv_audio_type_defs.h"
+#include    "s_tdec_int_file.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+Int get_audio_specific_config(
+    tDec_Int_File   * const pVars
+);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/get_dse.cpp

@@ -0,0 +1,215 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pInputStream = pointer to a BITS structure that holds information
+                   regarding the input stream.
+
+ Local Stores/Buffers/Pointers Needed:
+    None
+
+ Global Stores/Buffers/Pointers Needed:
+    None
+
+ Outputs:
+    None
+
+ Pointers and Buffers Modified:
+    pInputStream->usedBits is rounded up to a number that represents the next
+    byte boundary.
+
+ Local Stores Modified:
+    None
+
+ Global Stores Modified:
+    None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+    Adquire Data Stream element (DSE) from raw bitstream
+    At this time this function just drops the information.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+  This function shall not use global or static variables.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+void byte_align(
+    BITS  *pInputStream)
+
+    MODIFYING(pInputStream->usedBits = pInputStream->usedBits +
+                (pInputStream->usedBits + 7) % 8)
+
+    RETURN(nothing)
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+
+ STACK USAGE:
+
+     where:
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES:
+
+------------------------------------------------------------------------------
+*/
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+
+#include "pv_audio_type_defs.h"
+#include "get_dse.h"
+#include "ibstream.h"
+#include "getbits.h"
+#include "s_bits.h"
+
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL VARIABLE DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+
+void get_dse(
+    Char    *DataStreamBytes,
+    BITS    *pInputStream)
+{
+    Int i;
+    Int data_byte_align_flag;
+    UInt count;
+    Int esc_count;
+    Char    *pDataStreamBytes;
+
+    pDataStreamBytes = DataStreamBytes;
+
+    /*
+     *  Get element instance tag  ( 4 bits)
+     *  ( max of 16 per raw data block)
+     */
+    get9_n_lessbits(LEN_TAG, pInputStream);
+
+    /*
+     *  get data_byte_align_flag ( 1 bit0 to see if byte alignment is
+     *  performed within the DSE
+     */
+    data_byte_align_flag = get1bits(pInputStream);
+
+    /*
+     *  get count ( 8 bits)
+     */
+    count =  get9_n_lessbits(LEN_D_CNT, pInputStream);
+
+    /*
+     *  if count == 255, its value it is incremented  by a
+     *  second 8 bit value, esc_count. This final value represents
+     *  the number of bytes in the DSE
+     */
+    if (count == (1 << LEN_D_CNT) - 1)
+    {
+        esc_count = (Int)get9_n_lessbits(LEN_D_ESC, pInputStream);  /* 8 bits */
+        count +=  esc_count;
+    }
+
+    /*
+     *  Align if flag is set
+     */
+    if (data_byte_align_flag)
+    {
+        byte_align(pInputStream);
+    }
+
+    for (i = count; i != 0; i--)
+    {
+        *(pDataStreamBytes++) = (Char) get9_n_lessbits(
+                                    LEN_BYTE,
+                                    pInputStream);
+    }
+
+    return;
+
+} /* end get_dse */
+

media/libstagefright/codecs/aacdec/get_dse.h

@@ -0,0 +1,87 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: get_dse.h
+ Funtions:
+    get_dse
+
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+
+ Who:                                   Date: MM/DD/YYYY
+ Description:
+------------------------------------------------------------------------------
+
+*/
+
+/*----------------------------------------------------------------------------
+; CONTINUE ONLY IF NOT ALREADY DEFINED
+----------------------------------------------------------------------------*/
+#ifndef GET_DSE_H
+#define GET_DSE_H
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_elelist.h"
+#include "s_bits.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL VARIABLES REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; SIMPLE TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; ENUMERATED TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; STRUCTURES TYPEDEF'S
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; GLOBAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+void get_dse(
+    Char    *DataStreamBytes,
+    BITS    *pInputStream);
+
+/*----------------------------------------------------------------------------
+; END
+----------------------------------------------------------------------------*/
+#endif

media/libstagefright/codecs/aacdec/get_ele_list.cpp

@@ -0,0 +1,243 @@
+/* ------------------------------------------------------------------
+ * Copyright (C) 1998-2009 PacketVideo
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
+ * express or implied.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ * -------------------------------------------------------------------
+ */
+/*
+
+ Pathname: get_ele_list.c
+
+------------------------------------------------------------------------------
+ REVISION HISTORY
+
+ Description:  Modified from original shareware code
+
+ Description:  Modified to pass variables by reference to eliminate use
+               of global variables.
+
+ Description: Change to PacketVideo standard, rename variables.
+
+ Description: Add own header file, make pInputStream second param for speed.
+
+ Description: Changes per code review:
+              1) Include header file
+              2) Convert to count down
+              3) Add return (not in review)
+
+ Description:
+ (1) Updated copyright header
+ (2) Replaced include of "interface.h" with "e_ProgConfig.h"
+
+ Description: Replace some instances of getbits to get9_n_lessbits
+              when the number of bits read is 9 or less and get1bits
+              when only 1 bit is read.
+
+ Who:                                 Date:
+ Description:
+------------------------------------------------------------------------------
+ INPUT AND OUTPUT DEFINITIONS
+
+ Inputs:
+    pElementList = pointer to an EleList structure - only the field num_ele
+                   needs to be set. Data type pointer to EleList.
+
+   pInputStream = pointer to a BITS structure, used by the function getbits
+                   to provide data. Data type pointer to BITS
+
+    enableCPE = boolean value indicating the area to be read contains
+                a channel pair element field. Data type Bool
+
+
+ Local Stores/Buffers/Pointers Needed: None
+
+ Global Stores/Buffers/Pointers Needed: None
+
+ Outputs: None
+
+ Pointers and Buffers Modified:
+    pElementList contents are updated with information pertaining to channel
+        configuration.
+
+    pInputBuffer contents are updated to the next location to be read from
+        the input stream.
+
+ Local Stores Modified: None
+
+ Global Stores Modified: None
+
+------------------------------------------------------------------------------
+ FUNCTION DESCRIPTION
+
+ This function is called several times by get_prog_config() to read in part of
+ the program configuration data related to channel setup.
+
+------------------------------------------------------------------------------
+ REQUIREMENTS
+
+ This function shall not have static or global variables.
+
+------------------------------------------------------------------------------
+ REFERENCES
+
+ (1) ISO/IEC 13818-7:1997 Titled "Information technology - Generic coding
+   of moving pictures and associated audio information - Part 7: Advanced
+   Audio Coding (AAC)", Table 6.21 - Syntax of program_config_element(),
+   page 16, and section 8.5 "Program Config Element (PCE)", page 30.
+
+ (2) MPEG-2 NBC Audio Decoder
+   "This software module was originally developed by AT&T, Dolby
+   Laboratories, Fraunhofer Gesellschaft IIS in the course of development
+   of the MPEG-2 NBC/MPEG-4 Audio standard ISO/IEC 13818-7, 14496-1,2 and
+   3. This software module is an implementation of a part of one or more
+   MPEG-2 NBC/MPEG-4 Audio tools as specified by the MPEG-2 NBC/MPEG-4
+   Audio standard. ISO/IEC gives users of the MPEG-2 NBC/MPEG-4 Audio
+   standards free license to this software module or modifications thereof
+   for use in hardware or software products claiming conformance to the
+   MPEG-2 NBC/MPEG-4 Audio  standards. Those intending to use this software
+   module in hardware or software products are advised that this use may
+   infringe existing patents. The original developer of this software
+   module and his/her company, the subsequent editors and their companies,
+   and ISO/IEC have no liability for use of this software module or
+   modifications thereof in an implementation. Copyright is not released
+   for non MPEG-2 NBC/MPEG-4 Audio conforming products.The original
+   developer retains full right to use the code for his/her own purpose,
+   assign or donate the code to a third party and to inhibit third party
+   from using the code for non MPEG-2 NBC/MPEG-4 Audio conforming products.
+   This copyright notice must be included in all copies or derivative
+   works."
+   Copyright(c)1996.
+
+
+------------------------------------------------------------------------------
+ PSEUDO-CODE
+
+    elementCount = pElementList->num_ele;
+
+    FOR (index = 0; index < elementCount; index++)
+        IF (enableCPE != FALSE) THEN
+            pElementList->ele_is_cpe[index] =
+                getbits(LEN_ELE_IS_CPE, pInputStream);
+        ELSE
+            pElementList->ele_is_cpe[index] = 0;
+        END IF
+
+        pElementList->ele_tag[index] = getbits(LEN_TAG, pInputStream);
+
+    END FOR
+
+    RETURNS nothing
+
+------------------------------------------------------------------------------
+ RESOURCES USED
+   When the code is written for a specific target processor the
+     the resources used should be documented below.
+
+ STACK USAGE: [stack count for this module] + [variable to represent
+          stack usage for each subroutine called]
+
+     where: [stack usage variable] = stack usage for [subroutine
+         name] (see [filename].ext)
+
+ DATA MEMORY USED: x words
+
+ PROGRAM MEMORY USED: x words
+
+ CLOCK CYCLES: [cycle count equation for this module] + [variable
+           used to represent cycle count for each subroutine
+           called]
+
+     where: [cycle count variable] = cycle count for [subroutine
+        name] (see [filename].ext)
+
+------------------------------------------------------------------------------
+*/
+
+
+
+/*----------------------------------------------------------------------------
+; INCLUDES
+----------------------------------------------------------------------------*/
+#include "pv_audio_type_defs.h"
+#include "s_elelist.h"
+#include "s_bits.h"
+#include "e_progconfigconst.h"
+#include "ibstream.h"
+#include "get_ele_list.h"
+
+/*----------------------------------------------------------------------------
+; MACROS
+; Define module specific macros here
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; DEFINES
+; Include all pre-processor statements here. Include conditional
+; compile variables also.
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL FUNCTION DEFINITIONS
+; Function Prototype declaration
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; LOCAL STORE/BUFFER/POINTER DEFINITIONS
+; Variable declaration - defined here and used outside this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL FUNCTION REFERENCES
+; Declare functions defined elsewhere and referenced in this module
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES
+; Declare variables used in this module but defined elsewhere
+----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+; FUNCTION CODE
+----------------------------------------------------------------------------*/
+void get_ele_list(
+    EleList     *pElementList,
+    BITS        *pInputStream,
+    const Bool   enableCPE)
+{
+    Int index;
+    Int *pEleIsCPE;
+    Int *pEleTag;
+
+    pEleIsCPE = &pElementList->ele_is_cpe[0];
+    pEleTag   = &pElementList->ele_tag[0];
+
+    for (index = pElementList->num_ele; index > 0; index--)
+    {
+        if (enableCPE != FALSE)
+        {
+            *pEleIsCPE++ = get1bits(/*LEN_ELE_IS_CPE, */pInputStream);
+        }
+        else
+        {
+            *pEleIsCPE++ = FALSE;
+        }
+
+        *pEleTag++ = get9_n_lessbits(LEN_TAG, pInputStream);
+
+    } /* end for (index) */
+
+    return;
+
+} /* end get_ele_list */
+