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authorAndy Hung <hunga@google.com>2015-06-22 15:41:41 +0000
committerAndroid (Google) Code Review <android-gerrit@google.com>2015-06-22 15:41:42 +0000
commit42193b96b22782fce14c55314dfc269fb4a4ed22 (patch)
tree181361af67b8ba467038d96befcad57d207919dd /services
parent4d622375dc6c9d6b6b817cce598692ae491b2496 (diff)
parent60c545dfc4160a6d46febb9aa6684f6d300ec74d (diff)
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Merge "Fix FastMixer high bit depth Hal support" into mnc-dev
Diffstat (limited to 'services')
-rw-r--r--services/audioflinger/FastMixer.cpp4
1 files changed, 4 insertions, 0 deletions
diff --git a/services/audioflinger/FastMixer.cpp b/services/audioflinger/FastMixer.cpp
index f1cf0aa..45c68b5 100644
--- a/services/audioflinger/FastMixer.cpp
+++ b/services/audioflinger/FastMixer.cpp
@@ -177,6 +177,10 @@ void FastMixer::onStateChange()
free(mSinkBuffer);
mSinkBuffer = NULL;
if (frameCount > 0 && mSampleRate > 0) {
+ // The mixer produces either 16 bit PCM or float output, select
+ // float output if the HAL supports higher than 16 bit precision.
+ mMixerBufferFormat = mFormat.mFormat == AUDIO_FORMAT_PCM_16_BIT ?
+ AUDIO_FORMAT_PCM_16_BIT : AUDIO_FORMAT_PCM_FLOAT;
// FIXME new may block for unbounded time at internal mutex of the heap
// implementation; it would be better to have normal mixer allocate for us
// to avoid blocking here and to prevent possible priority inversion