FMRadio: Pause and stop AudioTrack before stopping

* According to documentation, stop will continue to play the last
  buffer, while pause immediately halts playback.
* Pause to reduce latency to stop, then flush the AudioTrack buffer
  before actually stopping in the render thread.

Change-Id: I0b497cd6b95b0921f63796746c7279a4f931dbd3

1 files changed, 2 insertions, 0 deletions

diff --git a/src/com/android/fmradio/FmService.java b/src/com/android/fmradio/FmService.java
index 32ffcf4..7e89237 100644
--- a/src/com/android/fmradio/FmService.java
+++ b/src/com/android/fmradio/FmService.java
@@ -503,6 +503,8 @@ public class FmService extends Service implements FmRecorder.OnRecorderStateChan
                         mCurrentFrame = 0;
 
                         if (mAudioTrack.getPlayState() == AudioTrack.PLAYSTATE_PLAYING) {
+                            mAudioTrack.pause();
+                            mAudioTrack.flush();
                             mAudioTrack.stop();
                         }