update offloaded audio track sampling rate

AudioPlayer must read the sampling rate from offloaded audio sinks
whenever a new time position is computed as the decoder can update
the sampling rate on the fly.

Change-Id: I997e5248cfd4017aeceb4e11689324ded2a5bc88

1 files changed, 13 insertions, 2 deletions

diff --git a/media/libstagefright/AudioPlayer.cpp b/media/libstagefright/AudioPlayer.cpp
index a8a8786..05ee34e 100644
--- a/media/libstagefright/AudioPlayer.cpp
+++ b/media/libstagefright/AudioPlayer.cpp
@@ -721,16 +721,27 @@ int64_t AudioPlayer::getRealTimeUsLocked() const {
     return result + diffUs;
 }
 
-int64_t AudioPlayer::getOutputPlayPositionUs_l() const
+int64_t AudioPlayer::getOutputPlayPositionUs_l()
 {
     uint32_t playedSamples = 0;
+    uint32_t sampleRate;
     if (mAudioSink != NULL) {
         mAudioSink->getPosition(&playedSamples);
+        sampleRate = mAudioSink->getSampleRate();
     } else {
         mAudioTrack->getPosition(&playedSamples);
+        sampleRate = mAudioTrack->getSampleRate();
+    }
+    if (sampleRate != 0) {
+        mSampleRate = sampleRate;
     }
 
-    const int64_t playedUs = (static_cast<int64_t>(playedSamples) * 1000000 ) / mSampleRate;
+    int64_t playedUs;
+    if (mSampleRate != 0) {
+        playedUs = (static_cast<int64_t>(playedSamples) * 1000000 ) / mSampleRate;
+    } else {
+        playedUs = 0;
+    }
 
     // HAL position is relative to the first buffer we sent at mStartPosUs
     const int64_t renderedDuration = mStartPosUs + playedUs;