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[client] audio: increase startup latency

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Underruns can still happen quite easily at the beginning of playback,
particularly at very low latency settings. Further increase the startup
latency to avoid this.
This commit is contained in:
Chris Spencer
2022-02-05 09:53:06 +00:00
committed by Geoffrey McRae
parent 5e1b8f2abe
commit 0d97a51802
4 changed files with 25 additions and 36 deletions
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23
client/audiodevs/PulseAudio/pulseaudio.c
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@@ -37,7 +37,7 @@ struct PulseAudio
int sinkIndex;
bool sinkCorked;
bool sinkMuted;
int sinkStart;
int sinkMaxPeriodFrames;
int sinkSampleRate;
int sinkChannels;
int sinkStride;
@@ -250,7 +250,7 @@ static void pulseaudio_setup(int channels, int sampleRate,
{
if (pa.sink && pa.sinkChannels == channels && pa.sinkSampleRate == sampleRate)
{
*maxPeriodFrames = pa.sinkStart;
*maxPeriodFrames = pa.sinkMaxPeriodFrames;
return;
}
@@ -287,30 +287,25 @@ static void pulseaudio_setup(int channels, int sampleRate,
PA_STREAM_START_CORKED | PA_STREAM_ADJUST_LATENCY,
NULL, NULL);
pa.sinkStride = channels * sizeof(float);
pa.sinkPullFn = pullFn;
pa.sinkStart = attribs.tlength / pa.sinkStride;
pa.sinkCorked = true;
pa.sinkStride = channels * sizeof(float);
pa.sinkPullFn = pullFn;
pa.sinkMaxPeriodFrames = attribs.tlength / pa.sinkStride;
pa.sinkCorked = true;
*maxPeriodFrames = pa.sinkStart;
*maxPeriodFrames = pa.sinkMaxPeriodFrames;
pa_threaded_mainloop_unlock(pa.loop);
}
static bool pulseaudio_start(int framesBuffered)
static void pulseaudio_start(void)
{
if (!pa.sink)
return false;
if (framesBuffered < pa.sinkStart)
return false;
return;
pa_threaded_mainloop_lock(pa.loop);
pa_stream_cork(pa.sink, 0, NULL, NULL);
pa.sinkCorked = false;
pa_threaded_mainloop_unlock(pa.loop);
return true;
}
static void pulseaudio_stop(void)