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This commit is contained in:
Nishi 2025-11-22 17:56:29 +09:00
commit cd1efe40ad
Signed by: nishi
GPG key ID: 27EF69B208EB9343
5 changed files with 46 additions and 47 deletions
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41
audio/drv_alsa.c
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@ -4,56 +4,56 @@
#include <alsa/asoundlib.h>
typedef struct driver_context {
snd_pcm_t* device;
snd_pcm_t* device;
snd_pcm_hw_params_t* params;
} driver_context_t;
#include "pthread/decl.c"
static void drv_write(driver_t* drv, void* data, int frames){
if(snd_pcm_writei(drv->context.device, data, frames) == -EPIPE){
static void drv_write(driver_t* drv, void* data, int frames) {
if(snd_pcm_writei(drv->context.device, data, frames) == -EPIPE) {
snd_pcm_prepare(drv->context.device);
}
}
static int drv_open(driver_t* drv){
static int drv_open(driver_t* drv) {
snd_pcm_uframes_t frames;
int rate = MDEAudioRate;
if(snd_pcm_open(&drv->context.device, "default", SND_PCM_STREAM_PLAYBACK, 0) < 0){
int rate = MDEAudioRate;
if(snd_pcm_open(&drv->context.device, "default", SND_PCM_STREAM_PLAYBACK, 0) < 0) {
MDEAudioClose(drv);
return 0;
}
snd_pcm_hw_params_malloc(&drv->context.params);
snd_pcm_hw_params_any(drv->context.device, drv->context.params);
if(snd_pcm_hw_params_set_access(drv->context.device, drv->context.params, SND_PCM_ACCESS_RW_INTERLEAVED) < 0){
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params_set_format(drv->context.device, drv->context.params, SND_PCM_FORMAT_S16) < 0){
if(snd_pcm_hw_params_set_access(drv->context.device, drv->context.params, SND_PCM_ACCESS_RW_INTERLEAVED) < 0) {
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params_set_channels(drv->context.device, drv->context.params, 2) < 0){
if(snd_pcm_hw_params_set_format(drv->context.device, drv->context.params, SND_PCM_FORMAT_S16) < 0) {
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params_set_rate_near(drv->context.device, drv->context.params, &rate, 0) < 0){
if(snd_pcm_hw_params_set_channels(drv->context.device, drv->context.params, 2) < 0) {
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params_set_rate(drv->context.device, drv->context.params, rate, 0) < 0){
if(snd_pcm_hw_params_set_rate_near(drv->context.device, drv->context.params, &rate, 0) < 0) {
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params(drv->context.device, drv->context.params) < 0){
if(snd_pcm_hw_params_set_rate(drv->context.device, drv->context.params, rate, 0) < 0) {
MDEAudioClose(drv);
return 0;
}
if(snd_pcm_hw_params(drv->context.device, drv->context.params) < 0) {
MDEAudioClose(drv);
return 0;
}
@ -64,9 +64,8 @@ static int drv_open(driver_t* drv){
return 1;
}
static void drv_close(driver_t* drv){
if(drv->context.device != NULL){
static void drv_close(driver_t* drv) {
if(drv->context.device != NULL) {
snd_pcm_drain(drv->context.device);
snd_pcm_close(drv->context.device);
snd_pcm_hw_params_free(drv->context.params);