commit 5a8a95de6dad1a3bcf3da5a37b35766e89086e13
author Ricardo Garcia <rago@google.com> Sat Apr 18 14:47:04 2015 -0700
committer Ricardo Garcia <rago@google.com> Wed Apr 22 10:57:24 2015 -0700
tree 64b82016eaef26f51b75470714172c06287c9c56
parent ea44f41bb142555e747cc11382296e94af99d312

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

services/audioflinger/Threads.cpp

diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index b30fd20..4eaeda3 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -3599,11 +3599,10 @@
         // during last round
         size_t desiredFrames;
         const uint32_t sampleRate = track->mAudioTrackServerProxy->getSampleRate();
-        float speed, pitch;
-        track->mAudioTrackServerProxy->getPlaybackRate(&speed, &pitch);
+        AudioPlaybackRate playbackRate = track->mAudioTrackServerProxy->getPlaybackRate();
 
         desiredFrames = sourceFramesNeededWithTimestretch(
-                sampleRate, mNormalFrameCount, mSampleRate, speed);
+                sampleRate, mNormalFrameCount, mSampleRate, playbackRate.mSpeed);
         // TODO: ONLY USED FOR LEGACY RESAMPLERS, remove when they are removed.
         // add frames already consumed but not yet released by the resampler
         // because mAudioTrackServerProxy->framesReady() will include these frames
@@ -3772,15 +3771,12 @@
                 AudioMixer::SAMPLE_RATE,
                 (void *)(uintptr_t)reqSampleRate);
 
-            // set the playback rate as an float array {speed, pitch}
-            float playbackRate[2];
-            track->mAudioTrackServerProxy->getPlaybackRate(
-                    &playbackRate[0] /*speed*/, &playbackRate[1] /*pitch*/);
+            AudioPlaybackRate playbackRate = track->mAudioTrackServerProxy->getPlaybackRate();
             mAudioMixer->setParameter(
                 name,
                 AudioMixer::TIMESTRETCH,
                 AudioMixer::PLAYBACK_RATE,
-                playbackRate);
+                &playbackRate);
 
             /*
              * Select the appropriate output buffer for the track.