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Commit 1f439e1c authored by Andy Hung's avatar Andy Hung
Browse files

Update FastTrack channel conversion check 

Change-Id: Ia1a3124e6408859bf4d95ff9fd95dda6970a4a7f
parent 64b6cb2c

services/audioflinger/Threads.cpp

+5 −3
Original line number Diff line number Diff line
@@ -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