258     track_t &track = mState.tracks[name];  in setChannelMasks()  local
260     if (trackChannelMask == track.channelMask  in setChannelMasks()
261             && mixerChannelMask == track.mMixerChannelMask) {  in setChannelMasks()
267     const bool mixerChannelCountChanged = track.mMixerChannelCount != mixerChannelCount;  in setChannelMasks()
272     track.channelMask = trackChannelMask;  in setChannelMasks()
273     track.channelCount = trackChannelCount;  in setChannelMasks()
274     track.mMixerChannelMask = mixerChannelMask;  in setChannelMasks()
275     track.mMixerChannelCount = mixerChannelCount;  in setChannelMasks()
279     const audio_format_t prevDownmixerFormat = track.mDownmixRequiresFormat;  in setChannelMasks()
283             status, track.channelMask, track.mMixerChannelMask);  in setChannelMasks()
285     if (prevDownmixerFormat != track.mDownmixRequiresFormat) {  in setChannelMasks()
286         track.prepareForReformat(); // because of downmixer, track format may change!  in setChannelMasks()
289     if (track.resampler && mixerChannelCountChanged) {  in setChannelMasks()
291         const uint32_t resetToSampleRate = track.sampleRate;  in setChannelMasks()
292         delete track.resampler;  in setChannelMasks()
293         track.resampler = NULL;  in setChannelMasks()
294         track.sampleRate = mSampleRate; // without resampler, track rate is device sample rate.  in setChannelMasks()
296         track.setResampler(resetToSampleRate /*trackSampleRate*/, mSampleRate /*devSampleRate*/);  in setChannelMasks()
439     track_t& track(mState.tracks[ name ]);  in deleteTrackName()  local
440     if (track.enabled) {  in deleteTrackName()
441         track.enabled = false;  in deleteTrackName()
445     delete track.resampler;  in deleteTrackName()
446     track.resampler = NULL;  in deleteTrackName()
452     delete track.mTimestretchBufferProvider;  in deleteTrackName()
453     track.mTimestretchBufferProvider = NULL;  in deleteTrackName()
461     track_t& track = mState.tracks[name];  in enable()  local
463     if (!track.enabled) {  in enable()
464         track.enabled = true;  in enable()
474     track_t& track = mState.tracks[name];  in disable()  local
476     if (track.enabled) {  in disable()
477         track.enabled = false;  in disable()
612     track_t& track = mState.tracks[name];  in setParameter()  local
624             if (setChannelMasks(name, trackChannelMask, track.mMixerChannelMask)) {  in setParameter()
630             if (track.mainBuffer != valueBuf) {  in setParameter()
631                 track.mainBuffer = valueBuf;  in setParameter()
637             if (track.auxBuffer != valueBuf) {  in setParameter()
638                 track.auxBuffer = valueBuf;  in setParameter()
645             if (track.mFormat != format) {  in setParameter()
647                 track.mFormat = format;  in setParameter()
649                 track.prepareForReformat();  in setParameter()
659             if (track.mMixerFormat != format) {  in setParameter()
660                 track.mMixerFormat = format;  in setParameter()
667             if (setChannelMasks(name, track.channelMask, mixerChannelMask)) {  in setParameter()
681             if (track.setResampler(uint32_t(valueInt), mSampleRate)) {  in setParameter()
688             track.resetResampler();  in setParameter()
692             delete track.resampler;  in setParameter()
693             track.resampler = NULL;  in setParameter()
694             track.sampleRate = mSampleRate;  in setParameter()
708                     &track.auxLevel, &track.prevAuxLevel, &track.auxInc,  in setParameter()
709                     &track.mAuxLevel, &track.mPrevAuxLevel, &track.mAuxInc)) {  in setParameter()
711                         target == VOLUME ? "VOLUME" : "RAMP_VOLUME", track.auxLevel);  in setParameter()
719                         &track.volume[param - VOLUME0], &track.prevVolume[param - VOLUME0],  in setParameter()
720                         &track.volumeInc[param - VOLUME0],  in setParameter()
721                         &track.mVolume[param - VOLUME0], &track.mPrevVolume[param - VOLUME0],  in setParameter()
722                         &track.mVolumeInc[param - VOLUME0])) {  in setParameter()
725                                     track.volume[param - VOLUME0]);  in setParameter()
741                 if (track.setPlaybackRate(*playbackRate)) {  in setParameter()