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Don't stop hardware on buffer underruns. Instead continue playing to guarantee that our time function stays as linear as possible.

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git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/lennart@1566 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2007-08-03 23:48:52 +00:00
parent a6c44c0e50
commit 95fab184d5
4 changed files with 92 additions and 50 deletions
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33
src/modules/alsa-util.c
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@ -289,10 +289,11 @@ int pa_alsa_set_hw_params(snd_pcm_t *pcm_handle, pa_sample_spec *ss, uint32_t *p
pa_assert(periods);
pa_assert(period_size);
snd_pcm_hw_params_alloca(&hwparams);
buffer_size = *periods * *period_size;
if ((ret = snd_pcm_hw_params_malloc(&hwparams)) < 0 ||
(ret = snd_pcm_hw_params_any(pcm_handle, hwparams)) < 0 ||
if ((ret = snd_pcm_hw_params_any(pcm_handle, hwparams)) < 0 ||
(ret = snd_pcm_hw_params_set_rate_resample(pcm_handle, hwparams, 0)) < 0)
goto finish;
@ -355,12 +356,36 @@ int pa_alsa_set_hw_params(snd_pcm_t *pcm_handle, pa_sample_spec *ss, uint32_t *p
ret = 0;
finish:
if (hwparams)
snd_pcm_hw_params_free(hwparams);
return ret;
}
int pa_alsa_set_sw_params(snd_pcm_t *pcm) {
snd_pcm_sw_params_t *swparams;
int err;
pa_assert(pcm);
snd_pcm_sw_params_alloca(&swparams);
if ((err = snd_pcm_sw_params_current(pcm, swparams) < 0)) {
pa_log_warn("Unable to determine current swparams: %s\n", snd_strerror(err));
return err;
}
if ((err = snd_pcm_sw_params_set_stop_threshold(pcm, swparams, (snd_pcm_uframes_t) -1)) < 0) {
pa_log_warn("Unable to set stop threshold: %s\n", snd_strerror(err));
return err;
}
if ((err = snd_pcm_sw_params(pcm, swparams)) < 0) {
pa_log_warn("Unable to set sw params: %s\n", snd_strerror(err));
return err;
}
return 0;
}
int pa_alsa_prepare_mixer(snd_mixer_t *mixer, const char *dev) {
int err;