AudioFlinger: Remove code for supporting resampling in fast tracks (3ce28aa3) · Commits · e / os / android_frameworks_av

services/audioflinger/FastMixer.cpp

+4 −23

Original line number	Diff line number	Diff line
		@@ -236,7 +236,6 @@ bool FastMixer::threadLoop()
		sampleRate = Format_sampleRate(format);
		ALOG_ASSERT(Format_channelCount(format) == FCC_2);
		}
		dumpState->mSampleRate = sampleRate;
		}

		if ((format != previousFormat) \|\| (frameCount != previous->mFrameCount)) {
		@@ -321,10 +320,6 @@ bool FastMixer::threadLoop()
		mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::MAIN_BUFFER,
		(void *) mixBuffer);
		// newly allocated track names default to full scale volume
		if (fastTrack->mSampleRate != 0 && fastTrack->mSampleRate != sampleRate) {
		mixer->setParameter(name, AudioMixer::RESAMPLE,
		AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate);
		}
		mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK,
		(void *) fastTrack->mChannelMask);
		mixer->enable(name);
		@@ -353,14 +348,8 @@ bool FastMixer::threadLoop()
		mixer->setParameter(name, AudioMixer::VOLUME, AudioMixer::VOLUME1,
		(void *)0x1000);
		}
		if (fastTrack->mSampleRate != 0 &&
		fastTrack->mSampleRate != sampleRate) {
		mixer->setParameter(name, AudioMixer::RESAMPLE,
		AudioMixer::SAMPLE_RATE, (void*) fastTrack->mSampleRate);
		} else {
		mixer->setParameter(name, AudioMixer::RESAMPLE,
		AudioMixer::REMOVE, NULL);
		}
		mixer->setParameter(name, AudioMixer::TRACK, AudioMixer::CHANNEL_MASK,
		(void *) fastTrack->mChannelMask);
		// already enabled
		@@ -392,16 +381,8 @@ bool FastMixer::threadLoop()

		// Refresh the per-track timestamp
		if (timestampStatus == NO_ERROR) {
		uint32_t trackFramesWrittenButNotPresented;
		uint32_t trackSampleRate = fastTrack->mSampleRate;
		// There is currently no sample rate conversion for fast tracks currently
		if (trackSampleRate != 0 && trackSampleRate != sampleRate) {
		trackFramesWrittenButNotPresented =
		((int64_t) nativeFramesWrittenButNotPresented * trackSampleRate) /
		sampleRate;
		} else {
		trackFramesWrittenButNotPresented = nativeFramesWrittenButNotPresented;
		}
		uint32_t trackFramesWrittenButNotPresented =
		nativeFramesWrittenButNotPresented;
		uint32_t trackFramesWritten = fastTrack->mBufferProvider->framesReleased();
		// Can't provide an AudioTimestamp before first frame presented,
		// or during the brief 32-bit wraparound window

services/audioflinger/FastMixerState.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -20,7 +20,7 @@
		namespace android {

		FastTrack::FastTrack() :
		mBufferProvider(NULL), mVolumeProvider(NULL), mSampleRate(0),
		mBufferProvider(NULL), mVolumeProvider(NULL),
		mChannelMask(AUDIO_CHANNEL_OUT_STEREO), mGeneration(0)
		{
		}

services/audioflinger/FastMixerState.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -43,7 +43,6 @@ struct FastTrack {

		ExtendedAudioBufferProvider* mBufferProvider; // must be NULL if inactive, or non-NULL if active
		VolumeProvider* mVolumeProvider; // optional; if NULL then full-scale
		unsigned mSampleRate; // optional; if zero then use mixer sample rate
		audio_channel_mask_t mChannelMask; // AUDIO_CHANNEL_OUT_MONO or AUDIO_CHANNEL_OUT_STEREO
		int mGeneration; // increment when any field is assigned
		};

services/audioflinger/Threads.cpp

+0 −1

Original line number	Diff line number	Diff line
		@@ -2971,7 +2971,6 @@ AudioFlinger::PlaybackThread::mixer_state AudioFlinger::MixerThread::prepareTrac
		VolumeProvider *vp = track;
		fastTrack->mBufferProvider = eabp;
		fastTrack->mVolumeProvider = vp;
		fastTrack->mSampleRate = track->mSampleRate;
		fastTrack->mChannelMask = track->mChannelMask;
		fastTrack->mGeneration++;
		state->mTrackMask \|= 1 << j;