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Switch to 32-bit floating point audio

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Excluding Steam Link due to CPU and API limitations
This commit is contained in:
Cameron Gutman
2024-07-17 20:37:50 -05:00
parent 8ac378f467
commit 7f009a4b8e
8 changed files with 69 additions and 17 deletions
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13
app/streaming/audio/renderers/sdlaud.cpp
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@@ -23,7 +23,7 @@ bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION*
SDL_zero(want);
want.freq = opusConfig->sampleRate;
want.format = AUDIO_S16;
want.format = AUDIO_F32SYS;
want.channels = opusConfig->channelCount;
// On PulseAudio systems, setting a value too small can cause underruns for other
@@ -40,7 +40,9 @@ bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION*
want.samples = SDL_max(480, opusConfig->samplesPerFrame);
#endif
m_FrameSize = opusConfig->samplesPerFrame * sizeof(short) * opusConfig->channelCount;
m_FrameSize = opusConfig->samplesPerFrame *
opusConfig->channelCount *
getAudioBufferSampleSize();
m_AudioDevice = SDL_OpenAudioDevice(NULL, 0, &want, &have, 0);
if (m_AudioDevice == 0) {
@@ -60,7 +62,7 @@ bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION*
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Desired audio buffer: %u samples (%u bytes)",
want.samples,
want.samples * (Uint32)sizeof(short) * want.channels);
want.samples * want.channels * getAudioBufferSampleSize());
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION,
"Obtained audio buffer: %u samples (%u bytes)",
@@ -143,3 +145,8 @@ int SdlAudioRenderer::getCapabilities()
// Direct submit can't be used because we use LiGetPendingAudioDuration()
return CAPABILITY_SUPPORTS_ARBITRARY_AUDIO_DURATION;
}
IAudioRenderer::AudioFormat SdlAudioRenderer::getAudioBufferFormat()
{
return AudioFormat::Float32NE;
}