commit e572f469de5dca1078a79d3d80e5b04f96ae7505
author Phil Burk <philburk@google.com> Thu Apr 20 13:03:19 2017 -0700
committer Phil Burk <philburk@google.com> Mon May 01 11:22:03 2017 -0700
tree 312a86063172d4bedef4dd1f68447797debb3d08
parent 6f85f6533a25f7eeaaacba53281572c00e63759a

aaudio: apply volume in the MMAP data path

The volume scaling is in AudioStreamInternal and not the mixer
because we will need volume scaling in EXCLUSIVE mode too.

Bug: 37518243
Test: play a tone using NativeOboe app then press volume keys
Change-Id: Ibbac9770ea4493f8ade64681be86f109a92803cd
Signed-off-by: Phil Burk <philburk@google.com>

media/libaaudio/src/legacy/AudioStreamTrack.cpp

diff --git a/media/libaaudio/src/legacy/AudioStreamTrack.cpp b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
index 1bb9e53..96fd427 100644
--- a/media/libaaudio/src/legacy/AudioStreamTrack.cpp
+++ b/media/libaaudio/src/legacy/AudioStreamTrack.cpp
@@ -32,6 +32,7 @@
 
 // Arbitrary and somewhat generous number of bursts.
 #define DEFAULT_BURSTS_PER_BUFFER_CAPACITY     8
+static const bool FAST_TRACKS_ENABLED = true;
 
 /*
  * Create a stream that uses the AudioTrack.
@@ -69,7 +70,9 @@
             samplesPerFrame, channelMask);
 
     // TODO add more performance options
-    audio_output_flags_t flags = (audio_output_flags_t) AUDIO_OUTPUT_FLAG_FAST;
+    audio_output_flags_t flags = FAST_TRACKS_ENABLED
+                                 ? AUDIO_OUTPUT_FLAG_FAST
+                                 : AUDIO_OUTPUT_FLAG_NONE;
 
     int32_t frameCount = builder.getBufferCapacity();
     ALOGD("AudioStreamTrack::open(), requested buffer capacity %d", frameCount);