moonlight-stream/moonlight-qt
1
0
Fork 0
mirror of https://github.com/moonlight-stream/moonlight-qt.git synced 2026-05-18 23:50:16 +00:00
Code Issues Packages Projects Releases Wiki Activity

Use queued audio duration instead of queued frame count to constrain latency

Browse Source 
This avoids latency explosion when we negotiate 10 ms instead of 5 ms audio packets.
This commit is contained in:
Cameron Gutman
2026-05-10 21:53:09 -05:00
parent c21affd15a
commit 4cf498b09d
2 changed files with 5 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
app/streaming/audio/renderers/sdl.h
+2 -1
View File
@@ -21,5 +21,6 @@ public:
private: private:
SDL_AudioDeviceID m_AudioDevice; SDL_AudioDeviceID m_AudioDevice;
void* m_AudioBuffer; void* m_AudioBuffer;
int m_FrameSize; Uint32 m_FrameSize;
Uint32 m_FrameDurationMs;
}; };
app/streaming/audio/renderers/sdlaud.cpp
+3 -2
View File
@@ -32,6 +32,7 @@ bool SdlAudioRenderer::prepareForPlayback(const OPUS_MULTISTREAM_CONFIGURATION*
// The buffering helps avoid audio underruns due to network jitter. // The buffering helps avoid audio underruns due to network jitter.
want.samples = SDL_max(480, opusConfig->samplesPerFrame * 3); want.samples = SDL_max(480, opusConfig->samplesPerFrame * 3);
m_FrameDurationMs = opusConfig->samplesPerFrame / (opusConfig->sampleRate / 1000);
m_FrameSize = opusConfig->samplesPerFrame * m_FrameSize = opusConfig->samplesPerFrame *
opusConfig->channelCount * opusConfig->channelCount *
getAudioBufferSampleSize(); getAudioBufferSampleSize();
@@ -115,8 +116,8 @@ bool SdlAudioRenderer::submitAudio(int bytesWritten)
return false; return false;
} }
// Only queue more samples where there are 10 frames or less in SDL's queue // Only queue more samples where there is 50 ms or less in SDL's queue
if (SDL_GetQueuedAudioSize(m_AudioDevice) / m_FrameSize <= 10) { if (SDL_GetQueuedAudioSize(m_AudioDevice) / m_FrameSize * m_FrameDurationMs <= 50) {
break; break;
} }