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-rw-r--r--plugins/audio/audio-alsa.c40
1 files changed, 21 insertions, 19 deletions
diff --git a/plugins/audio/audio-alsa.c b/plugins/audio/audio-alsa.c
index bc777fce..6240d39d 100644
--- a/plugins/audio/audio-alsa.c
+++ b/plugins/audio/audio-alsa.c
@@ -17,6 +17,7 @@
*/
#include "audio-api.h"
+#include "audio-alsa.h"
snd_mixer_selem_channel_id_t SCHANNELS[8] = {
SND_MIXER_SCHN_FRONT_LEFT,
@@ -42,7 +43,7 @@ PUBLIC unsigned char _alsa_init (const char *name, audioCtxHandleT *ctx) {
int num, i;
if (snd_pcm_open (&dev, name, SND_PCM_STREAM_PLAYBACK, 0) < 0)
- return -1;
+ return 0;
snd_pcm_hw_params_malloc (&params);
snd_pcm_hw_params_any (dev, params);
@@ -52,14 +53,14 @@ PUBLIC unsigned char _alsa_init (const char *name, audioCtxHandleT *ctx) {
snd_pcm_hw_params_set_channels (dev, params, ctx->channels);
if (snd_pcm_hw_params (dev, params) < 0) {
snd_pcm_hw_params_free (params);
- return -1;
+ return 0;
}
snd_pcm_prepare (dev);
snd_mixer_open (&mixer, 0);
if (snd_mixer_attach (mixer, name) < 0) {
snd_pcm_hw_params_free (params);
- return -1;
+ return 0;
}
snd_mixer_selem_register (mixer, NULL, NULL);
snd_mixer_load (mixer);
@@ -107,7 +108,7 @@ PUBLIC unsigned char _alsa_init (const char *name, audioCtxHandleT *ctx) {
for (num = 0; num < (sizeof(dev_ctx_a)/sizeof(dev_ctx_alsa_T)); num++) {
if (dev_ctx_a[num]->name &&
!strcmp (dev_ctx_a[num]->name, name))
- return -1;
+ return 0;
}
num++;
@@ -129,10 +130,11 @@ PUBLIC unsigned char _alsa_init (const char *name, audioCtxHandleT *ctx) {
ctx->volume[i] = _alsa_get_volume (num, i);
ctx->mute = _alsa_get_mute (num);
ctx->idx = num;
+ ctx->name = strdup (name);
if (verbose) fprintf (stderr, "Successfully initialized ALSA backend.\n");
- return 0;
+ return 1;
}
PUBLIC void _alsa_free (const char *name) {
@@ -153,7 +155,7 @@ PUBLIC void _alsa_free (const char *name) {
}
}
-PUBLIC void _alsa_play (unsigned int num) {
+PUBLIC void _alsa_play (int num) {
if (!dev_ctx_a || !dev_ctx_a[num] || dev_ctx_a[num]->thr_should_run ||
access (AUDIO_BUFFER, F_OK) == -1)
@@ -164,7 +166,7 @@ PUBLIC void _alsa_play (unsigned int num) {
pthread_create (&dev_ctx_a[num]->thr, NULL, _alsa_play_thread_fn, (void*)dev_ctx_a[num]);
}
-PUBLIC void _alsa_stop (unsigned int num) {
+PUBLIC void _alsa_stop (int num) {
if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->thr_should_run)
return;
@@ -178,41 +180,41 @@ PUBLIC void _alsa_stop (unsigned int num) {
pthread_join (dev_ctx_a[num]->thr, NULL);
}
-PUBLIC int _alsa_get_volume (unsigned int num, unsigned int channel) {
+PUBLIC unsigned int _alsa_get_volume (int num, unsigned int channel) {
if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm)
- return;
+ return 0;
snd_mixer_selem_get_playback_volume (dev_ctx_a[num]->mixer_elm, SCHANNELS[channel], &dev_ctx_a[num]->vol);
return (int)(dev_ctx_a[num]->vol*100)/dev_ctx_a[num]->vol_max;
}
-PUBLIC void _alsa_set_volume (unsigned int num, unsigned int channel, int vol) {
+PUBLIC void _alsa_set_volume (int num, unsigned int channel, unsigned int vol) {
if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm ||
- 0 > vol > 100)
+ vol > 100)
return;
snd_mixer_selem_set_playback_volume (dev_ctx_a[num]->mixer_elm, SCHANNELS[channel], (vol*dev_ctx_a[num]->vol_max)/100);
}
-PUBLIC void _alsa_set_volume_all (unsigned int num, int vol) {
+PUBLIC void _alsa_set_volume_all (int num, unsigned int vol) {
if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm ||
- 0 > vol > 100)
+ vol > 100)
snd_mixer_selem_set_playback_volume_all (dev_ctx_a[num]->mixer_elm, (vol*dev_ctx_a[num]->vol_max)/100);
}
-PUBLIC unsigned char _alsa_get_mute (unsigned int num) {
+PUBLIC unsigned char _alsa_get_mute (int num) {
int mute = 0;
snd_mixer_elem_t *elm_m;
if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm)
- return;
+ return 0;
dev_ctx_a[num]->mixer_elm_m ? (elm_m = dev_ctx_a[num]->mixer_elm_m) :
(elm_m = dev_ctx_a[num]->mixer_elm);
@@ -228,12 +230,12 @@ PUBLIC unsigned char _alsa_get_mute (unsigned int num) {
return (unsigned char)!mute;
}
-PUBLIC void _alsa_set_mute (unsigned int num, unsigned char tomute) {
+PUBLIC void _alsa_set_mute (int num, unsigned char tomute) {
snd_mixer_elem_t *elm_m;
int mute;
- if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm || 1 < tomute < 0)
+ if (!dev_ctx_a || !dev_ctx_a[num] || !dev_ctx_a[num]->mixer_elm || 1 < tomute)
return;
if (dev_ctx_a[num]->mixer_elm_m) {
@@ -248,7 +250,7 @@ PUBLIC void _alsa_set_mute (unsigned int num, unsigned char tomute) {
snd_mixer_selem_set_playback_switch_all (elm_m, !mute);
}
-PUBLIC void _alsa_set_rate (unsigned int num, unsigned int rate) {
+PUBLIC void _alsa_set_rate (int num, unsigned int rate) {
if (!dev_ctx_a || !dev_ctx_a[num])
return;
@@ -256,7 +258,7 @@ PUBLIC void _alsa_set_rate (unsigned int num, unsigned int rate) {
snd_pcm_hw_params_set_rate_near (dev_ctx_a[num]->dev, dev_ctx_a[num]->params, &rate, 0);
}
-PUBLIC void _alsa_set_channels (unsigned int num, unsigned int channels) {
+PUBLIC void _alsa_set_channels (int num, unsigned int channels) {
if (!dev_ctx_a || !dev_ctx_a[num])
return;