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Merge pull request #327 from alexheretic/alsa-set-buffer-near 

Alsa: Set buffer size near to 100ms
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Tatsuyuki Ishi 2019-08-31 21:34:55 +09:00 committed by GitHub
parent 9e3a19c352 b1228fc3ff
commit 95e9fe0f91
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1 changed files with 10 additions and 0 deletions
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10
src/host/alsa/mod.rs
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@ -1116,6 +1116,16 @@ unsafe fn set_hw_params_from_format(
return Err(format!("channel count could not be set: {}", e)); return Err(format!("channel count could not be set: {}", e));
} }
// If this isn't set manually a overlarge buffer may be used causing audio delay
if let Err(e) = check_errors(alsa::snd_pcm_hw_params_set_buffer_time_near(
pcm_handle,
hw_params.0,
&mut 100_000,
&mut 0,
)) {
return Err(format!("buffer time could not be set: {}", e));
}
if let Err(e) = check_errors(alsa::snd_pcm_hw_params(pcm_handle, hw_params.0)) { if let Err(e) = check_errors(alsa::snd_pcm_hw_params(pcm_handle, hw_params.0)) {
return Err(format!("hardware params could not be set: {}", e)); return Err(format!("hardware params could not be set: {}", e));
} }