stagefright: Squashed commit of pause/resume features

Add 2 APIs (suspend/resume) in MediaPlayer

- API:suspend() will just pause the player and release all the decoders
  to replace release() which will release the whole player
- API:resume() will just init the decoders again,
  then start() will be called to restart streaming playback
- Add a check in AwesomePlayer::onVideoEvent()
  to make sure the first seek operation will always seek to the next
  i-frame

Change-Id: Ie4c82906a2a056378119921a656128ebdc1007c4

audio: Add pause support for hardware omx component

- ADSP doesn't enter sleep state after wma playback is paused
  and power suspended.
- No support for NT session pause in case of hardware component.
  NT session need to be paused to put ADSP into power collapse.
- Add support of pause in stagefright to ensure device enters
  suspend mode. Also add intermediate states to avoid concurrency
  issues between read and pause.

Change-Id: I41b946b8c8805e6ee303646b63513b5b16514ef6

libstagefright: Drain input buffer on resume

- Buffers returned from codec in paused state are not drained. When
codec is resumed these buffers are not drained until the next flush,
and may cause timed out issue.
- Added change to drain input buffers for sw decoders when resuming.

Change-Id: Ida2ab1d5dc3a1910accdd6fb89548262a912d8e7
CRs-Fixed: 569585, 574967

libstagefright: camcorder pause-resume implementation

- Add pause resume feature in camcorder app. So that
  user can pause recording and resume later which results
  in a single recorded clip.

Change-Id: Id19c45ae5bb85265aa4d5304b160ebf119d9575a

libstagefright: support pause/resume for timelapse recording

  Modify the timestamp calculation mechanism in CameraSourceTimeLapse
  in order to support pause/resume.

Change-Id: Icb02ea798b0b807ffb7ada2d1ef5b2414b74edfb

1 files changed, 7 insertions, 2 deletions

diff --git a/media/libstagefright/CameraSourceTimeLapse.cpp b/media/libstagefright/CameraSourceTimeLapse.cpp
index 926e95c..53815bd 100644
--- a/media/libstagefright/CameraSourceTimeLapse.cpp
+++ b/media/libstagefright/CameraSourceTimeLapse.cpp
@@ -78,6 +78,7 @@ CameraSourceTimeLapse::CameraSourceTimeLapse(
                 storeMetaDataInVideoBuffers),
       mTimeBetweenTimeLapseVideoFramesUs(1E6/videoFrameRate),
       mLastTimeLapseFrameRealTimestampUs(0),
+      mLastTimeLapseFrameTimeStampUs(0),
       mSkipCurrentFrame(false) {
 
     mTimeBetweenFrameCaptureUs = timeBetweenFrameCaptureUs;
@@ -252,6 +253,7 @@ bool CameraSourceTimeLapse::skipFrameAndModifyTimeStamp(int64_t *timestampUs) {
         ALOGV("dataCallbackTimestamp timelapse: initial frame");
 
         mLastTimeLapseFrameRealTimestampUs = *timestampUs;
+        mLastTimeLapseFrameTimeStampUs = *timestampUs;
         return false;
     }
 
@@ -263,8 +265,10 @@ bool CameraSourceTimeLapse::skipFrameAndModifyTimeStamp(int64_t *timestampUs) {
         if (mForceRead) {
             ALOGV("dataCallbackTimestamp timelapse: forced read");
             mForceRead = false;
+            mLastTimeLapseFrameRealTimestampUs = *timestampUs;
             *timestampUs =
-                mLastFrameTimestampUs + mTimeBetweenTimeLapseVideoFramesUs;
+                mLastTimeLapseFrameTimeStampUs + mTimeBetweenTimeLapseVideoFramesUs;
+            mLastTimeLapseFrameTimeStampUs = *timestampUs;
 
             // Really make sure that this video recording frame will not be dropped.
             if (*timestampUs < mStartTimeUs) {
@@ -294,7 +298,8 @@ bool CameraSourceTimeLapse::skipFrameAndModifyTimeStamp(int64_t *timestampUs) {
         ALOGV("dataCallbackTimestamp timelapse: got timelapse frame");
 
         mLastTimeLapseFrameRealTimestampUs = *timestampUs;
-        *timestampUs = mLastFrameTimestampUs + mTimeBetweenTimeLapseVideoFramesUs;
+        *timestampUs = mLastTimeLapseFrameTimeStampUs + mTimeBetweenTimeLapseVideoFramesUs;
+        mLastTimeLapseFrameTimeStampUs = *timestampUs;
         // Update start-time once the captured-time reaches the expected start-time.
         // Not doing so will result in CameraSource always dropping frames since
         // updated-timestamp will never intersect start-timestamp