am 7fb232c4: Merge "Make sure that key frame is generated for timelapse video recording if there are at least two input video frames from camera source." into honeycomb

* commit '7fb232c40cde91d0958be1694db2d97a126b95f9':
  Make sure that key frame is generated for timelapse video recording if there are at least two input video frames from camera source.

include/media/stagefright/CameraSource.h

@@ -158,6 +158,7 @@ protected:
     int32_t mNumFramesReceived;
     int64_t mLastFrameTimestampUs;
     bool mStarted;
+    int32_t mNumFramesEncoded;
 
     CameraSource(const sp<ICamera>& camera, int32_t cameraId,
                  Size videoSize, int32_t frameRate,
@@ -189,7 +190,6 @@ private:
     List<int64_t> mFrameTimes;
 
     int64_t mFirstFrameTimeUs;
-    int32_t mNumFramesEncoded;
     int32_t mNumFramesDropped;
     int32_t mNumGlitches;
     int64_t mGlitchDurationThresholdUs;

include/media/stagefright/OMXCodec.h

@@ -47,6 +47,9 @@ struct OMXCodec : public MediaSource,
 
         // Store meta data in video buffers
         kStoreMetaDataInVideoBuffers = 32,
+
+        // Only submit one input buffer at one time.
+        kOnlySubmitOneInputBufferAtOneTime = 64,
     };
     static sp<MediaSource> Create(
             const sp<IOMX> &omx,
@@ -192,6 +195,7 @@ private:
     Condition mBufferFilled;
 
     bool mIsMetaDataStoredInVideoBuffers;
+    bool mOnlySubmitOneBufferAtOneTime;
 
     OMXCodec(const sp<IOMX> &omx, IOMX::node_id node, uint32_t quirks,
              bool isEncoder, const char *mime, const char *componentName,

media/libmediaplayerservice/StagefrightRecorder.cpp

@@ -1239,6 +1239,14 @@ status_t StagefrightRecorder::setupVideoEncoder(
         encoder_flags |= OMXCodec::kHardwareCodecsOnly;
         encoder_flags |= OMXCodec::kStoreMetaDataInVideoBuffers;
     }
+
+    // Do not wait for all the input buffers to become available.
+    // This give timelapse video recording faster response in
+    // receiving output from video encoder component.
+    if (mCaptureTimeLapse) {
+        encoder_flags |= OMXCodec::kOnlySubmitOneInputBufferAtOneTime;
+    }
+
     sp<MediaSource> encoder = OMXCodec::Create(
             client.interface(), enc_meta,
             true /* createEncoder */, cameraSource,

media/libstagefright/CameraSource.cpp

@@ -147,8 +147,8 @@ CameraSource::CameraSource(
       mNumFramesReceived(0),
       mLastFrameTimestampUs(0),
       mStarted(false),
-      mFirstFrameTimeUs(0),
       mNumFramesEncoded(0),
+      mFirstFrameTimeUs(0),
       mNumFramesDropped(0),
       mNumGlitches(0),
       mGlitchDurationThresholdUs(200000),

media/libstagefright/CameraSourceTimeLapse.cpp

@@ -491,7 +491,10 @@ bool CameraSourceTimeLapse::skipFrameAndModifyTimeStamp(int64_t *timestampUs) {
             }
         }
 
-        if (*timestampUs <
+        // Workaround to bypass the first 2 input frames for skipping.
+        // The first 2 output frames from the encoder are: decoder specific info and
+        // the compressed video frame data for the first input video frame.
+        if (mNumFramesEncoded >= 1 && *timestampUs <
                 (mLastTimeLapseFrameRealTimestampUs + mTimeBetweenTimeLapseFrameCaptureUs)) {
             // Skip all frames from last encoded frame until
             // sufficient time (mTimeBetweenTimeLapseFrameCaptureUs) has passed.

media/libstagefright/OMXCodec.cpp

@@ -522,6 +522,12 @@ status_t OMXCodec::configureCodec(const sp<MetaData> &meta, uint32_t flags) {
     if (flags & kStoreMetaDataInVideoBuffers) {
         mIsMetaDataStoredInVideoBuffers = true;
     }
+
+    mOnlySubmitOneBufferAtOneTime = false;
+    if (flags & kOnlySubmitOneInputBufferAtOneTime) {
+        mOnlySubmitOneBufferAtOneTime = true;
+    }
+
     if (!(flags & kIgnoreCodecSpecificData)) {
         uint32_t type;
         const void *data;
@@ -2610,7 +2616,17 @@ void OMXCodec::drainInputBuffers() {
 
     Vector<BufferInfo> *buffers = &mPortBuffers[kPortIndexInput];
     for (size_t i = 0; i < buffers->size(); ++i) {
-        if (!drainInputBuffer(&buffers->editItemAt(i))) {
+        BufferInfo *info = &buffers->editItemAt(i);
+
+        if (info->mStatus != OWNED_BY_US) {
+            continue;
+        }
+
+        if (!drainInputBuffer(info)) {
+            break;
+        }
+
+        if (mOnlySubmitOneBufferAtOneTime) {
             break;
         }
     }