Added a callback to signal when the rendering of the video frame just occurred

Change-Id: Ifbd78606ffc33483aecebf02cb18e0e52af9624d
related-to-bug: 6851811

3 files changed, 10 insertions, 0 deletions

diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index 1fad3833..f7cebc5f 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -99,6 +99,8 @@ enum media_info_type {
     // The player was started because it was used as the next player for another
     // player, which just completed playback
     MEDIA_INFO_STARTED_AS_NEXT = 2,
+    // The player just pushed the very first video frame for rendering
+    MEDIA_INFO_RENDERING_START = 3,
     // 7xx
     // The video is too complex for the decoder: it can't decode frames fast
     // enough. Possibly only the audio plays fine at this stage.
diff --git a/media/libstagefright/AwesomePlayer.cpp b/media/libstagefright/AwesomePlayer.cpp
index 661d7cd5..664d5dd4 100644
--- a/media/libstagefright/AwesomePlayer.cpp
+++ b/media/libstagefright/AwesomePlayer.cpp
@@ -183,6 +183,7 @@ AwesomePlayer::AwesomePlayer()
     : mQueueStarted(false),
       mUIDValid(false),
       mTimeSource(NULL),
+      mVideoRenderingStarted(false),
       mVideoRendererIsPreview(false),
       mAudioPlayer(NULL),
       mDisplayWidth(0),
@@ -468,6 +469,7 @@ void AwesomePlayer::reset() {
 }
 
 void AwesomePlayer::reset_l() {
+    mVideoRenderingStarted = false;
     mActiveAudioTrackIndex = -1;
     mDisplayWidth = 0;
     mDisplayHeight = 0;
@@ -1805,6 +1807,11 @@ void AwesomePlayer::onVideoEvent() {
     if (mVideoRenderer != NULL) {
         mSinceLastDropped++;
         mVideoRenderer->render(mVideoBuffer);
+        if (!mVideoRenderingStarted) {
+            mVideoRenderingStarted = true;
+            notifyListener_l(MEDIA_INFO, MEDIA_INFO_RENDERING_START);
+        }
+
     }
 
     mVideoBuffer->release();
diff --git a/media/libstagefright/include/AwesomePlayer.h b/media/libstagefright/include/AwesomePlayer.h
index 68380a87..1422687d 100644
--- a/media/libstagefright/include/AwesomePlayer.h
+++ b/media/libstagefright/include/AwesomePlayer.h
@@ -166,6 +166,7 @@ private:
     sp<MediaSource> mVideoTrack;
     sp<MediaSource> mVideoSource;
     sp<AwesomeRenderer> mVideoRenderer;
+    bool mVideoRenderingStarted;
     bool mVideoRendererIsPreview;
 
     ssize_t mActiveAudioTrackIndex;