IOMX: convert ANWB to Gralloc meta if using useBuffer in the same process am: 4fb1e42a16 am: 63482ec6e9 am: c0f5ebaea4 am: 0cf2dfba38  -s ours am: ab9cd1762f am: b9f1ad516f am: fef0923f54
am: 8e46ffa338

Change-Id: Ieeae2d94a948f7fc5199c2a58338c25fc448d5c0
diff --git a/include/media/stagefright/AudioSource.h b/include/media/stagefright/AudioSource.h
index 8fc410d..2ec89a4 100644
--- a/include/media/stagefright/AudioSource.h
+++ b/include/media/stagefright/AudioSource.h
@@ -87,7 +87,6 @@
     int64_t mStartTimeUs;
     int16_t mMaxAmplitude;
     int64_t mPrevSampleTimeUs;
-    int64_t mFirstSampleTimeUs;
     int64_t mInitialReadTimeUs;
     int64_t mNumFramesReceived;
     int64_t mNumClientOwnedBuffers;
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index 790c6da..efdee77 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -60,7 +60,6 @@
       mStartTimeUs(0),
       mMaxAmplitude(0),
       mPrevSampleTimeUs(0),
-      mFirstSampleTimeUs(-1ll),
       mInitialReadTimeUs(0),
       mNumFramesReceived(0),
       mNumClientOwnedBuffers(0) {
@@ -277,12 +276,8 @@
     }
 
     if (mSampleRate != mOutSampleRate) {
-        if (mFirstSampleTimeUs < 0) {
-            mFirstSampleTimeUs = timeUs;
-        }
-        timeUs = mFirstSampleTimeUs + (timeUs - mFirstSampleTimeUs)
-                * (int64_t)mSampleRate / (int64_t)mOutSampleRate;
-        buffer->meta_data()->setInt64(kKeyTime, timeUs);
+            timeUs *= (int64_t)mSampleRate / (int64_t)mOutSampleRate;
+            buffer->meta_data()->setInt64(kKeyTime, timeUs);
     }
 
     *out = buffer;
diff --git a/media/libstagefright/omx/GraphicBufferSource.cpp b/media/libstagefright/omx/GraphicBufferSource.cpp
index 93d6584..0c4056d 100644
--- a/media/libstagefright/omx/GraphicBufferSource.cpp
+++ b/media/libstagefright/omx/GraphicBufferSource.cpp
@@ -792,7 +792,8 @@
         if (mPrevCaptureUs < 0ll) {
             // first capture
             mPrevCaptureUs = timeUs;
-            mPrevFrameUs = timeUs;
+            // adjust the first sample timestamp.
+            mPrevFrameUs = (timeUs * mTimePerFrameUs) / mTimePerCaptureUs;
         } else {
             // snap to nearest capture point
             int64_t nFrames = (timeUs + mTimePerCaptureUs / 2 - mPrevCaptureUs)