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, 30 insertions, 0 deletions

diff --git a/media/libmedia/IMediaPlayer.cpp b/media/libmedia/IMediaPlayer.cpp
index 942aec3..bad84b7 100644
--- a/media/libmedia/IMediaPlayer.cpp
+++ b/media/libmedia/IMediaPlayer.cpp
@@ -67,6 +67,8 @@ enum {
     SET_RETRANSMIT_ENDPOINT,
     GET_RETRANSMIT_ENDPOINT,
     SET_NEXT_PLAYER,
+    SUSPEND,
+    RESUME,
 };
 
 class BpMediaPlayer: public BpInterface<IMediaPlayer>
@@ -419,6 +421,22 @@ public:
 
         return err;
     }
+
+    status_t suspend()
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        remote()->transact(SUSPEND, data, &reply);
+        return reply.readInt32();
+     }
+
+     status_t resume()
+     {
+        Parcel data, reply;
+        data.writeInterfaceToken(IMediaPlayer::getInterfaceDescriptor());
+        remote()->transact(RESUME, data, &reply);
+        return reply.readInt32();
+     }
 };
 
 IMPLEMENT_META_INTERFACE(MediaPlayer, "android.media.IMediaPlayer");
@@ -682,6 +700,18 @@ status_t BnMediaPlayer::onTransact(
 
             return NO_ERROR;
         } break;
+        case SUSPEND: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            status_t ret = suspend();
+            reply->writeInt32(ret);
+            return NO_ERROR;
+        } break;
+        case RESUME: {
+            CHECK_INTERFACE(IMediaPlayer, data, reply);
+            status_t ret = resume();
+            reply->writeInt32(ret);
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }