}
/* allocate the global array if it hasn't been done */
- if (!adev_ctx) {
- adev_ctx = (adev_ctx_T**) malloc (sizeof(adev_ctx_T));
- adev_ctx[0] = (adev_ctx_T*) malloc (sizeof(adev_ctx_T));
- adev_ctx[0]->name = NULL;
- adev_ctx[0]->dev = NULL;
+ if (!dev_ctx) {
+ dev_ctx = (dev_ctx_T**) malloc (sizeof(dev_ctx_T));
+ dev_ctx[0] = (dev_ctx_T*) malloc (sizeof(dev_ctx_T));
+ dev_ctx[0]->name = NULL;
+ dev_ctx[0]->dev = NULL;
}
/* is a card with similar name already opened ? */
- for (num = 0; num < (sizeof(adev_ctx)/sizeof(adev_ctx_T)); num++) {
- if (adev_ctx[num]->name &&
- !strcmp (adev_ctx[num]->name, name))
+ for (num = 0; num < (sizeof(dev_ctx)/sizeof(dev_ctx_T)); num++) {
+ if (dev_ctx[num]->name &&
+ !strcmp (dev_ctx[num]->name, name))
return 0;
}
num++;
/* it's not... let us add it to the global array */
- adev_ctx = (adev_ctx_T**) realloc (adev_ctx, (num+1)*sizeof(adev_ctx_T));
- adev_ctx[num] = (adev_ctx_T*) malloc (sizeof(adev_ctx_T));
- adev_ctx[num]->name = strdup (name);
- adev_ctx[num]->dev = dev;
- adev_ctx[num]->params = params;
- adev_ctx[num]->mixer_elm = mixer_elm;
- adev_ctx[num]->vol_max = vol_max;
- adev_ctx[num]->vol = vol;
+ dev_ctx = (dev_ctx_T**) realloc (dev_ctx, (num+1)*sizeof(dev_ctx_T));
+ dev_ctx[num] = (dev_ctx_T*) malloc (sizeof(dev_ctx_T));
+ dev_ctx[num]->name = strdup (name);
+ dev_ctx[num]->dev = dev;
+ dev_ctx[num]->params = params;
+ dev_ctx[num]->mixer_elm = mixer_elm;
+ dev_ctx[num]->vol_max = vol_max;
+ dev_ctx[num]->vol = vol;
+ dev_ctx[num]->thr_should_run = 0;
+ dev_ctx[num]->thr_finished = 0;
/* make the client context aware of current card state */
ctx->volume = _alsa_get_volume (num);
int num;
- for (num = 0; num < (sizeof(adev_ctx)/sizeof(adev_ctx_T)); num++) {
- if (adev_ctx[num]->name &&
- !strcmp (adev_ctx[num]->name, name)) {
- snd_pcm_close (adev_ctx[num]->dev);
- snd_pcm_hw_params_free (adev_ctx[num]->params);
- free (adev_ctx[num]->name);
- adev_ctx[num]->name = NULL;
- adev_ctx[num]->dev = NULL;
- free(adev_ctx[num]);
+ for (num = 0; num < (sizeof(dev_ctx)/sizeof(dev_ctx_T)); num++) {
+ if (dev_ctx[num]->name &&
+ !strcmp (dev_ctx[num]->name, name)) {
+ snd_pcm_close (dev_ctx[num]->dev);
+ snd_pcm_hw_params_free (dev_ctx[num]->params);
+ free (dev_ctx[num]->name);
+ dev_ctx[num]->name = NULL;
+ dev_ctx[num]->dev = NULL;
+ free(dev_ctx[num]);
return;
}
}
}
-PUBLIC void _alsa_play (unsigned int num, void *buf, int len) {
+PUBLIC void _alsa_play (unsigned int num) {
- if (!adev_ctx || !adev_ctx[num]) {
+ if (!dev_ctx || !dev_ctx[num] || dev_ctx[num]->thr_should_run ||
+ access (AUDIO_BUFFER, F_OK) == -1)
return;
- }
- int16_t *cbuf = (int16_t *)buf;
- int frames = len / 2;
- int res;
- if ((res = snd_pcm_writei (adev_ctx[num]->dev, cbuf, frames)) != frames) {
- snd_pcm_recover (adev_ctx[num]->dev, res, 0);
- snd_pcm_prepare (adev_ctx[num]->dev);
- }
- /* snd_pcm_drain (adev_ctx[num]->dev); */
+ dev_ctx[num]->thr_should_run = 1;
+ dev_ctx[num]->thr_finished = 0;
+ pthread_create(&dev_ctx[num]->thr, NULL, _play_thread_fn, (void*)dev_ctx[num]);
+}
+
+PUBLIC void _alsa_stop (unsigned int num) {
+
+ if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->thr_should_run)
+ return;
+
+ /* stop the "while" loop in thread */
+ dev_ctx[num]->thr_should_run = 0;
+
+ while (!dev_ctx[num]->thr_finished)
+ usleep(100000);
+
+ pthread_join(dev_ctx[num]->thr, NULL);
}
PUBLIC unsigned int _alsa_get_volume (unsigned int num) {
- if (!adev_ctx || !adev_ctx[num] || !adev_ctx[num]->mixer_elm)
+ if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm)
return;
- snd_mixer_selem_get_playback_volume (adev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &adev_ctx[num]->vol);
+ snd_mixer_selem_get_playback_volume (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &dev_ctx[num]->vol);
- return (unsigned int)(adev_ctx[num]->vol*100)/adev_ctx[num]->vol_max;
+ return (unsigned int)(dev_ctx[num]->vol*100)/dev_ctx[num]->vol_max;
}
PUBLIC unsigned int _alsa_set_volume (unsigned int num, unsigned int vol) {
- if (!adev_ctx || !adev_ctx[num] || !adev_ctx[num]->mixer_elm || vol > 100)
+ if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm || vol > 100)
return;
- snd_mixer_selem_set_playback_volume_all (adev_ctx[num]->mixer_elm, (vol*adev_ctx[num]->vol_max)/100);
+ snd_mixer_selem_set_playback_volume_all (dev_ctx[num]->mixer_elm, (vol*dev_ctx[num]->vol_max)/100);
}
PUBLIC unsigned char _alsa_get_mute (unsigned int num) {
int mute = 0;
- if (!adev_ctx || !adev_ctx[num] || !adev_ctx[num]->mixer_elm)
+ if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm)
return;
- if (snd_mixer_selem_has_playback_switch (adev_ctx[num]->mixer_elm)) {
- snd_mixer_selem_get_playback_switch (adev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &mute);
- snd_mixer_selem_get_playback_switch (adev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_RIGHT, &mute);
+ if (snd_mixer_selem_has_playback_switch (dev_ctx[num]->mixer_elm)) {
+ snd_mixer_selem_get_playback_switch (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_LEFT, &mute);
+ snd_mixer_selem_get_playback_switch (dev_ctx[num]->mixer_elm, SND_MIXER_SCHN_FRONT_RIGHT, &mute);
}
PUBLIC void _alsa_set_mute (unsigned int num, unsigned char mute) {
- if (!adev_ctx || !adev_ctx[num] || !adev_ctx[num]->mixer_elm || 1 < mute < 0)
+ if (!dev_ctx || !dev_ctx[num] || !dev_ctx[num]->mixer_elm || 1 < mute < 0)
return;
- if (snd_mixer_selem_has_playback_switch (adev_ctx[num]->mixer_elm))
- snd_mixer_selem_set_playback_switch_all (adev_ctx[num]->mixer_elm, !mute);
+ if (snd_mixer_selem_has_playback_switch (dev_ctx[num]->mixer_elm))
+ snd_mixer_selem_set_playback_switch_all (dev_ctx[num]->mixer_elm, !mute);
}
PUBLIC void _alsa_set_rate (unsigned int num, unsigned int rate) {
- if (!adev_ctx || !adev_ctx[num])
+ if (!dev_ctx || !dev_ctx[num])
return;
- snd_pcm_hw_params_set_rate_near (adev_ctx[num]->dev, adev_ctx[num]->params, &rate, 0);
+ snd_pcm_hw_params_set_rate_near (dev_ctx[num]->dev, dev_ctx[num]->params, &rate, 0);
}
PUBLIC void _alsa_set_channels (unsigned int num, unsigned int channels) {
- if (!adev_ctx || !adev_ctx[num])
+ if (!dev_ctx || !dev_ctx[num])
return;
- snd_pcm_hw_params_set_channels (adev_ctx[num]->dev, adev_ctx[num]->params, channels);
+ snd_pcm_hw_params_set_channels (dev_ctx[num]->dev, dev_ctx[num]->params, channels);
+}
+
+ /* ---- LOCAL THREADED FUNCTIONS ---- */
+
+STATIC void* _play_thread_fn (void *ctx) {
+
+ dev_ctx_T *dev_ctx = (dev_ctx_T *)ctx;
+ FILE *file = NULL;
+ char *buf = NULL;
+ long size;
+ int frames, res;
+
+ file = fopen (AUDIO_BUFFER, "rb");
+
+ while (dev_ctx->thr_should_run && file && (access (AUDIO_BUFFER, F_OK) != -1) ) {
+ fseek (file, 0, SEEK_END);
+ size = ftell (file);
+ buf = (char*) realloc (buf, size * sizeof(char));
+ frames = (size * sizeof(char)) / 4;
+
+ fseek (file, 0, SEEK_SET);
+ fread (buf, 1, size, file);
+ fflush (file);
+
+ if ((res = snd_pcm_writei (dev_ctx->dev, buf, frames)) != frames) {
+ snd_pcm_recover (dev_ctx->dev, res, 0);
+ snd_pcm_prepare (dev_ctx->dev);
+ }
+ /* snd_pcm_drain (dev_ctx->dev); */
+ }
+ if (buf) free(buf);
+ if (file) fclose(file);
+
+ dev_ctx->thr_finished = 1;
+ return 0;
}
Code Review / src / app-framework-binder.git / blobdiff