Use AudioPlaybackRate to hold TimestretchBufferProvider parameters

Use this struct to handle the parameters for TimestretchBufferProvider all
across the system.
Add stretch mode and fallback mode to TimestretchBuffer Provider.

Change-Id: I19099924a7003c62e48bb6ead56c785cb129fba2

1 files changed, 3 insertions, 7 deletions

diff --git a/media/libmedia/AudioTrackShared.cpp b/media/libmedia/AudioTrackShared.cpp
index aee9fc2..1d7aed2 100644
--- a/media/libmedia/AudioTrackShared.cpp
+++ b/media/libmedia/AudioTrackShared.cpp
@@ -794,14 +794,10 @@ void AudioTrackServerProxy::tallyUnderrunFrames(uint32_t frameCount)
     (void) android_atomic_or(CBLK_UNDERRUN, &cblk->mFlags);
 }
 
-void AudioTrackServerProxy::getPlaybackRate(float *speed, float *pitch)
+AudioPlaybackRate AudioTrackServerProxy::getPlaybackRate()
 {   // do not call from multiple threads without holding lock
-    AudioTrackPlaybackRate playbackRate;
-    if (mPlaybackRateObserver.poll(playbackRate)) {
-        mPlaybackRate = playbackRate;
-    }
-    *speed = mPlaybackRate.mSpeed;
-    *pitch = mPlaybackRate.mPitch;
+    mPlaybackRateObserver.poll(mPlaybackRate);
+    return mPlaybackRate;
 }
 
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