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git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@298 fefdeb5f-60dc-0310-8127-8f9354f1896f
This commit is contained in:
Lennart Poettering 2004-11-21 02:43:05 +00:00
parent 6985eda934
commit fa751e537d
12 changed files with 88 additions and 14 deletions
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10
polyp/alsa-util.c
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@ -30,7 +30,9 @@
#include "sample.h"
#include "xmalloc.h"
int pa_alsa_set_hw_params(snd_pcm_t *pcm_handle, struct pa_sample_spec *ss, uint32_t *periods, snd_pcm_uframes_t *period_size) {
/* Set the hardware parameters of the given ALSA device. Returns the
* selected fragment settings in *period/*period_size */
int pa_alsa_set_hw_params(snd_pcm_t *pcm_handle, const struct pa_sample_spec *ss, uint32_t *periods, snd_pcm_uframes_t *period_size) {
int ret = -1;
snd_pcm_uframes_t buffer_size;
snd_pcm_hw_params_t *hwparams = NULL;
@ -79,6 +81,11 @@ finish:
return ret;
}
/* Allocate an IO event for every ALSA poll descriptor for the
* specified ALSA device. Return a pointer to such an array in
* *io_events. Store the length of that array in *n_io_events. Use the
* specified callback function and userdata. The array has to be freed
* with pa_free_io_events(). */
int pa_create_io_events(snd_pcm_t *pcm_handle, struct pa_mainloop_api* m, struct pa_io_event ***io_events, unsigned *n_io_events, void (*cb)(struct pa_mainloop_api*a, struct pa_io_event *e, int fd, enum pa_io_event_flags events, void *userdata), void *userdata) {
unsigned i;
struct pollfd *pfds, *ppfd;
@ -106,6 +113,7 @@ int pa_create_io_events(snd_pcm_t *pcm_handle, struct pa_mainloop_api* m, struct
return 0;
}
/* Free the memory allocated by pa_create_io_events() */
void pa_free_io_events(struct pa_mainloop_api* m, struct pa_io_event **io_events, unsigned n_io_events) {
unsigned i;
struct pa_io_event **ios;