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simplify pa_alsa_init_proplist_pcm() a bit and include resolution bits in alsa device props

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This commit is contained in:
Lennart Poettering 2009-02-18 21:49:31 +01:00
parent c9c63c295f
commit ff58fa8870
4 changed files with 28 additions and 20 deletions
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10
src/modules/alsa/alsa-sink.c
View file

@ -1236,14 +1236,11 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
uint32_t nfrags, hwbuf_size, frag_size, tsched_size, tsched_watermark;
snd_pcm_uframes_t period_frames, tsched_frames;
size_t frame_size;
snd_pcm_info_t *pcm_info = NULL;
int err;
pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE;
pa_usec_t usec;
pa_sink_new_data data;
snd_pcm_info_alloca(&pcm_info);
pa_assert(m);
pa_assert(ma);
@ -1378,11 +1375,6 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
if (u->use_tsched)
pa_log_info("Successfully enabled timer-based scheduling mode.");
if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) {
pa_log("Error fetching PCM info: %s", snd_strerror(err));
goto fail;
}
/* ALSA might tweak the sample spec, so recalculate the frame size */
frame_size = pa_frame_size(&ss);
@ -1396,7 +1388,7 @@ pa_sink *pa_alsa_sink_new(pa_module *m, pa_modargs *ma, const char*driver, pa_ca
pa_sink_new_data_set_sample_spec(&data, &ss);
pa_sink_new_data_set_channel_map(&data, &map);
pa_alsa_init_proplist_pcm(m->core, data.proplist, pcm_info);
pa_alsa_init_proplist_pcm(m->core, data.proplist, u->pcm_handle);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_name);
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (period_frames * frame_size * nfrags));
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (period_frames * frame_size));

10
src/modules/alsa/alsa-source.c
View file

@ -1071,13 +1071,10 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
uint32_t nfrags, hwbuf_size, frag_size, tsched_size, tsched_watermark;
snd_pcm_uframes_t period_frames, tsched_frames;
size_t frame_size;
snd_pcm_info_t *pcm_info = NULL;
int err;
pa_bool_t use_mmap = TRUE, b, use_tsched = TRUE, d, ignore_dB = FALSE;
pa_source_new_data data;
snd_pcm_info_alloca(&pcm_info);
pa_assert(m);
ss = m->core->default_sample_spec;
@ -1203,11 +1200,6 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
if (u->use_tsched)
pa_log_info("Successfully enabled timer-based scheduling mode.");
if ((err = snd_pcm_info(u->pcm_handle, pcm_info)) < 0) {
pa_log("Error fetching PCM info: %s", snd_strerror(err));
goto fail;
}
/* ALSA might tweak the sample spec, so recalculate the frame size */
frame_size = pa_frame_size(&ss);
@ -1221,7 +1213,7 @@ pa_source *pa_alsa_source_new(pa_module *m, pa_modargs *ma, const char*driver, p
pa_source_new_data_set_sample_spec(&data, &ss);
pa_source_new_data_set_channel_map(&data, &map);
pa_alsa_init_proplist_pcm(m->core, data.proplist, pcm_info);
pa_alsa_init_proplist_pcm(m->core, data.proplist, u->pcm_handle);
pa_proplist_sets(data.proplist, PA_PROP_DEVICE_STRING, u->device_name);
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_BUFFER_SIZE, "%lu", (unsigned long) (period_frames * frame_size * nfrags));
pa_proplist_setf(data.proplist, PA_PROP_DEVICE_BUFFERING_FRAGMENT_SIZE, "%lu", (unsigned long) (period_frames * frame_size));

25
src/modules/alsa/alsa-util.c
View file

@ -37,6 +37,7 @@
#include <pulsecore/macro.h>
#include <pulsecore/core-util.h>
#include <pulsecore/atomic.h>
#include <pulsecore/core-error.h>
#include "alsa-util.h"
@ -1361,7 +1362,7 @@ void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card) {
#endif
}
void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info) {
void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info) {
static const char * const alsa_class_table[SND_PCM_CLASS_LAST+1] = {
[SND_PCM_CLASS_GENERIC] = "generic",
@ -1427,6 +1428,28 @@ void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_i
pa_proplist_sets(p, PA_PROP_DEVICE_DESCRIPTION, n);
}
void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm) {
snd_pcm_hw_params_t *hwparams;
snd_pcm_info_t *info;
int bits, err;
snd_pcm_hw_params_alloca(&hwparams);
snd_pcm_info_alloca(&info);
if ((err = snd_pcm_hw_params_current(pcm, hwparams)) < 0)
pa_log_warn("Error fetching hardware parameter info: %s", snd_strerror(err));
else {
if ((bits = snd_pcm_hw_params_get_sbits(hwparams)) >= 0)
pa_proplist_setf(p, "alsa.resolution_bits", "%i", bits);
}
if ((err = snd_pcm_info(pcm, info)) < 0)
pa_log_warn("Error fetching PCM info: %s", snd_strerror(err));
else
pa_alsa_init_proplist_pcm_info(c, p, info);
}
int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents) {
snd_pcm_state_t state;
int err;

3
src/modules/alsa/alsa-util.h
View file

@ -120,8 +120,9 @@ void pa_alsa_dump_status(snd_pcm_t *pcm);
void pa_alsa_redirect_errors_inc(void);
void pa_alsa_redirect_errors_dec(void);
void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info);
void pa_alsa_init_proplist_pcm_info(pa_core *c, pa_proplist *p, snd_pcm_info_t *pcm_info);
void pa_alsa_init_proplist_card(pa_core *c, pa_proplist *p, int card);
void pa_alsa_init_proplist_pcm(pa_core *c, pa_proplist *p, snd_pcm_t *pcm);
int pa_alsa_recover_from_poll(snd_pcm_t *pcm, int revents);