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big alsa module rework to make things more robust to broken sound drivers and make it easier to debug them

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This commit is contained in:
Lennart Poettering 2009-02-20 03:21:17 +01:00
parent adc9c2db6b
commit 26a270a934
4 changed files with 397 additions and 279 deletions
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22
src/modules/alsa/alsa-util.c
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@ -465,6 +465,7 @@ finish:
int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min) {
snd_pcm_sw_params_t *swparams;
snd_pcm_uframes_t boundary;
int err;
pa_assert(pcm);
@ -476,7 +477,22 @@ int pa_alsa_set_sw_params(snd_pcm_t *pcm, snd_pcm_uframes_t avail_min) {
return err;
}
if ((err = snd_pcm_sw_params_set_stop_threshold(pcm, swparams, (snd_pcm_uframes_t) -1)) < 0) {
if ((err = snd_pcm_sw_params_set_period_event(pcm, swparams, 0)) < 0) {
pa_log_warn("Unable to disable period event: %s\n", snd_strerror(err));
return err;
}
if ((err = snd_pcm_sw_params_set_tstamp_mode(pcm, swparams, SND_PCM_TSTAMP_ENABLE)) < 0) {
pa_log_warn("Unable to enable time stamping: %s\n", snd_strerror(err));
return err;
}
if ((err = snd_pcm_sw_params_get_boundary(swparams, &boundary)) < 0) {
pa_log_warn("Unable to get boundary: %s\n", snd_strerror(err));
return err;
}
if ((err = snd_pcm_sw_params_set_stop_threshold(pcm, swparams, boundary)) < 0) {
pa_log_warn("Unable to set stop threshold: %s\n", snd_strerror(err));
return err;
}
@ -1534,7 +1550,7 @@ pa_rtpoll_item* pa_alsa_build_pollfd(snd_pcm_t *pcm, pa_rtpoll *rtpoll) {
return item;
}
snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss) {
snd_pcm_sframes_t pa_alsa_safe_avail(snd_pcm_t *pcm, size_t hwbuf_size, const pa_sample_spec *ss) {
snd_pcm_sframes_t n;
size_t k;
@ -1545,7 +1561,7 @@ snd_pcm_sframes_t pa_alsa_safe_avail_update(snd_pcm_t *pcm, size_t hwbuf_size, c
/* Some ALSA driver expose weird bugs, let's inform the user about
* what is going on */
n = snd_pcm_avail_update(pcm);
n = snd_pcm_avail(pcm);
if (n <= 0)
return n;