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am 9823a170: Merge "Make MtpDatabase use libexif instead of libjhead" into klp-dev

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* commit '9823a170e4f9ff1d9233eb7eb661c4d418c2e2a7':
  Make MtpDatabase use libexif instead of libjhead
This commit is contained in:
Marco Nelissen
2014-03-07 21:12:21 +00:00
committed by Android Git Automerger
parent f066adde7a 9823a170e4
commit ac87587875
2 changed files with 46 additions and 34 deletions
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4
media/jni/Android.mk
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@@ -37,7 +37,7 @@ LOCAL_SHARED_LIBRARIES := \
libcamera_client \
libmtp \
libusbhost \
libjhead \
libexif \
libstagefright_amrnb_common \
LOCAL_REQUIRED_MODULES := \
@@ -47,7 +47,7 @@ LOCAL_STATIC_LIBRARIES := \
libstagefright_amrnbenc
LOCAL_C_INCLUDES += \
external/jhead \
external/libexif/ \
external/tremor/Tremor \
frameworks/base/core/jni \
frameworks/av/media/libmedia \

76
media/jni/android_mtp_MtpDatabase.cpp
View File

@@ -37,7 +37,10 @@
#include "mtp.h"
extern "C" {
#include "jhead.h"
#include "libexif/exif-content.h"
#include "libexif/exif-data.h"
#include "libexif/exif-tag.h"
#include "libexif/exif-utils.h"
}
using namespace android;
@@ -750,6 +753,22 @@ MtpResponseCode MyMtpDatabase::getObjectPropertyList(MtpObjectHandle handle,
return result;
}
static void foreachentry(ExifEntry *entry, void *user) {
char buf[1024];
ALOGI("entry %x, format %d, size %d: %s",
entry->tag, entry->format, entry->size, exif_entry_get_value(entry, buf, sizeof(buf)));
}
static void foreachcontent(ExifContent *content, void *user) {
ALOGI("content %d", exif_content_get_ifd(content));
exif_content_foreach_entry(content, foreachentry, user);
}
static long getLongFromExifEntry(ExifEntry *e) {
ExifByteOrder o = exif_data_get_byte_order(e->parent->parent);
return exif_get_long(e->data, o);
}
MtpResponseCode MyMtpDatabase::getObjectInfo(MtpObjectHandle handle,
MtpObjectInfo& info) {
char date[20];
@@ -792,23 +811,22 @@ MtpResponseCode MyMtpDatabase::getObjectInfo(MtpObjectHandle handle,
// read EXIF data for thumbnail information
if (info.mFormat == MTP_FORMAT_EXIF_JPEG || info.mFormat == MTP_FORMAT_JFIF) {
ResetJpgfile();
// Start with an empty image information structure.
memset(&ImageInfo, 0, sizeof(ImageInfo));
ImageInfo.FlashUsed = -1;
ImageInfo.MeteringMode = -1;
ImageInfo.Whitebalance = -1;
strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX);
if (ReadJpegFile((const char*)path, READ_METADATA)) {
Section_t* section = FindSection(M_EXIF);
if (section) {
info.mThumbCompressedSize = ImageInfo.ThumbnailSize;
info.mThumbFormat = MTP_FORMAT_EXIF_JPEG;
info.mImagePixWidth = ImageInfo.Width;
info.mImagePixHeight = ImageInfo.Height;
}
ExifData *exifdata = exif_data_new_from_file(path);
if (exifdata) {
//exif_data_foreach_content(exifdata, foreachcontent, NULL);
// XXX get this from exif, or parse jpeg header instead?
ExifEntry *w = exif_content_get_entry(
exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_X_DIMENSION);
ExifEntry *h = exif_content_get_entry(
exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_Y_DIMENSION);
info.mThumbCompressedSize = exifdata->data ? exifdata->size : 0;
info.mThumbFormat = MTP_FORMAT_EXIF_JPEG;
info.mImagePixWidth = w ? getLongFromExifEntry(w) : 0;
info.mImagePixHeight = h ? getLongFromExifEntry(h) : 0;
exif_data_unref(exifdata);
}
DiscardData();
}
checkAndClearExceptionFromCallback(env, __FUNCTION__);
@@ -824,22 +842,16 @@ void* MyMtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize)
if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK
&& (format == MTP_FORMAT_EXIF_JPEG || format == MTP_FORMAT_JFIF)) {
ResetJpgfile();
// Start with an empty image information structure.
memset(&ImageInfo, 0, sizeof(ImageInfo));
ImageInfo.FlashUsed = -1;
ImageInfo.MeteringMode = -1;
ImageInfo.Whitebalance = -1;
strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX);
if (ReadJpegFile((const char*)path, READ_METADATA)) {
Section_t* section = FindSection(M_EXIF);
if (section) {
outThumbSize = ImageInfo.ThumbnailSize;
result = malloc(outThumbSize);
if (result)
memcpy(result, section->Data + ImageInfo.ThumbnailOffset + 8, outThumbSize);
ExifData *exifdata = exif_data_new_from_file(path);
if (exifdata) {
if (exifdata->data) {
result = malloc(exifdata->size);
if (result) {
memcpy(result, exifdata->data, exifdata->size);
}
}
DiscardData();
exif_data_unref(exifdata);
}
}