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Fix 5.1 channel mapping on Steam Link

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This commit is contained in:
Cameron Gutman
2019-11-17 12:22:57 -08:00
parent 6059c982cf
commit 1febe32e73
4 changed files with 52 additions and 12 deletions
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23
app/streaming/audio/renderers/slaud.cpp
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@@ -43,6 +43,29 @@ bool SLAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION* o
return true;
}
#define SWAP_CHANNEL(i, j) \
tmp = opusConfig->mapping[i]; \
opusConfig->mapping[i] = opusConfig->mapping[j]; \
opusConfig->mapping[j] = tmp
void SLAudioRenderer::remapChannels(POPUS_MULTISTREAM_CONFIGURATION opusConfig) {
unsigned char tmp;
if (opusConfig->channelCount == 6) {
// The Moonlight's default channel order is FL,FR,C,LFE,RL,RR
// SLAudio expects FL,C,FR,RL,RR,LFE so we swap the channels around to match
// Swap FR and C - now FL,C,FR,LFE,RL,RR
SWAP_CHANNEL(1, 2);
// Swap LFE and RR - now FL,C,FR,RR,RL,LFE
SWAP_CHANNEL(3, 5);
// Swap RR and RL - now FL,C,FR,RL,RR,LFE
SWAP_CHANNEL(4, 5);
}
}
void* SLAudioRenderer::getAudioBuffer(int* size)
{
SDL_assert(*size == m_AudioBufferSize);