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Never use fewer than 480 samples to avoid causing issues on PulseAudio systems

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Fixes #830
Fixes #858
This commit is contained in:
Cameron Gutman 2022-08-25 21:27:05 -05:00
parent c1f663cec1
commit aca82f400a
1 changed files with 4 additions and 5 deletions
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9
app/streaming/audio/renderers/sdlaud.cpp
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@ -26,11 +26,10 @@ bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION*
want.format = AUDIO_S16;
want.channels = opusConfig->channelCount;
// This is supposed to be a power of 2, but our
// frames contain a non-power of 2 number of samples,
// so the slop would require buffering another full frame.
// Specifying non-Po2 seems to work for our supported platforms.
want.samples = opusConfig->samplesPerFrame;
// On PulseAudio systems, setting a value too small can cause underruns for other
// applications sharing this output device. We impose a floor of 480 samples (10 ms)
// to mitigate this issue.
want.samples = SDL_max(480, opusConfig->samplesPerFrame);
m_FrameSize = opusConfig->samplesPerFrame * sizeof(short) * opusConfig->channelCount;