diff options
| -rw-r--r-- | services/audioflinger/Threads.cpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp index 594ed05..bd29207 100644 --- a/services/audioflinger/Threads.cpp +++ b/services/audioflinger/Threads.cpp @@ -1572,10 +1572,12 @@ sp<AudioFlinger::PlaybackThread::Track> AudioFlinger::PlaybackThread::createTrac ) && // PCM data audio_is_linear_pcm(format) && - // identical channel mask to sink, or mono in and stereo sink + // TODO: extract as a data library function that checks that a computationally + // expensive downmixer is not required: isFastOutputChannelConversion() (channelMask == mChannelMask || - (channelMask == AUDIO_CHANNEL_OUT_MONO && - mChannelMask == AUDIO_CHANNEL_OUT_STEREO)) && + mChannelMask != AUDIO_CHANNEL_OUT_STEREO || + (channelMask == AUDIO_CHANNEL_OUT_MONO + /* && mChannelMask == AUDIO_CHANNEL_OUT_STEREO */)) && // hardware sample rate (sampleRate == mSampleRate) && // normal mixer has an associated fast mixer |