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Improve PortAudio channel autodetection algorithm to workaround PulseAudio issues

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Cameron Gutman 2018-09-22 16:51:45 -07:00
commit 2cd4851601
1 changed files with 6 additions and 1 deletions
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7
app/streaming/audio/renderers/portaudiorenderer.cpp
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@ -151,7 +151,12 @@ int PortAudioRenderer::detectAudioConfiguration()
return false; return false;
} }
if (deviceInfo->maxOutputChannels > 2) { // PulseAudio reports max output channels that don't
// correspond to any output devices (32 channels), so
// only use 5.1 surround sound if the output channel count
// is reasonable. Additionally, PortAudio doesn't do remixing
// for quadraphonic, so only use 5.1 if we have 6 or more channels.
if (deviceInfo->maxOutputChannels == 6 || deviceInfo->maxOutputChannels == 8) {
return AUDIO_CONFIGURATION_51_SURROUND; return AUDIO_CONFIGURATION_51_SURROUND;
} }
else { else {