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Stop visualizer feed for stopped playback

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A stopped instance of OutputCoreAudio should not continue to feed the
visualization system with stale audio, potentially while another instance
is already starting up and feeding its own audio output.

Signed-off-by: Christopher Snowhill <kode54@gmail.com>
This commit is contained in:
Christopher Snowhill 2023-10-02 19:15:58 -07:00
parent 2987857b93
commit fb72db74f8
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1 changed files with 10 additions and 1 deletions
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11
Audio/Output/OutputCoreAudio.m
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@ -160,6 +160,9 @@ static OSStatus eqRenderCallback(void *inRefCon, AudioUnitRenderActionFlags *ioA
if(fabs(realStreamFormat.mSampleRate - lastVisRate) > 1e-5) {
if(rsvis) {
for(;;) {
if(stopping) {
break;
}
int samplesFlushed;
samplesFlushed = (int)rsstate_flush(rsvis, &visTemp[0], 8192);
if(samplesFlushed > 1) {
@ -181,6 +184,9 @@ static OSStatus eqRenderCallback(void *inRefCon, AudioUnitRenderActionFlags *ioA
size_t inDone = 0;
size_t visFrameCount = frameCount;
do {
if(stopping) {
break;
}
int visTodo = (int)MIN(visFrameCount, visResamplerRemain + visFrameCount - 8192);
if(visTodo) {
cblas_scopy(visTodo, &visAudio[0], 1, &visResamplerInput[visResamplerRemain], 1);
@ -202,6 +208,9 @@ static OSStatus eqRenderCallback(void *inRefCon, AudioUnitRenderActionFlags *ioA
}
} else if(rsvis) {
for(;;) {
if(stopping) {
break;
}
int samplesFlushed;
samplesFlushed = (int)rsstate_flush(rsvis, &visTemp[0], 8192);
if(samplesFlushed > 1) {
@ -215,7 +224,7 @@ static OSStatus eqRenderCallback(void *inRefCon, AudioUnitRenderActionFlags *ioA
rsvis = NULL;
[visController postVisPCM:&visAudio[0] amount:frameCount];
visPushed += (double)frameCount / 44100.0;
} else {
} else if(!stopping) {
[visController postVisPCM:&visAudio[0] amount:frameCount];
visPushed += (double)frameCount / 44100.0;
}