int aica_audio_open(int freq, int channels, uint32_t size) {
if (audio_mut == NULL) {
audio_mut = mutex_create();
}
sample_rate = freq;
chans = channels;
tmpbuf = (uint8*) malloc(BUFFER_MAX_FILL);
sndbuf = (uint8*) malloc(BUFFER_MAX_FILL);
memset (tmpbuf, 0, BUFFER_MAX_FILL);
memset (sndbuf, 0, BUFFER_MAX_FILL);
sbsize = size;
sndptr = last_read = snd_ct = 0;
waiting_for_data = 1;
shnd = snd_stream_alloc(aica_audio_callback, sbsize);
if(shnd < 0) {
ds_printf("DS_ERROR: Can't alloc stream\n");
return -1;
}
snd_stream_prefill(shnd);
snd_stream_start(shnd, freq, channels-1);
return 0;
}
/* Call this function as a thread to handle playback. Playback will
stop and this thread will return when you call sndmp3_shutdown(). */
static void sndmp3_thread() {
int sj;
stream_hnd = snd_stream_alloc(NULL, SND_STREAM_BUFFER_MAX);
if(stream_hnd < 0) {
printf("sndserver: can't alloc stream\r\n");
return;
}
/* Main command loop */
while(sndmp3_status != STATUS_QUIT) {
switch(sndmp3_status) {
case STATUS_INIT:
sndmp3_status = STATUS_READY;
break;
case STATUS_READY:
printf("sndserver: waiting on semaphore\r\n");
sem_wait(sndmp3_halt_sem);
printf("sndserver: released from semaphore\r\n");
break;
case STATUS_STARTING:
/* Initialize streaming driver */
if (snd_stream_reinit(stream_hnd, mpg123_callback) < 0) {
sndmp3_status = STATUS_READY;
} else {
snd_stream_start(stream_hnd, rate, channels - 1);
sndmp3_status = STATUS_PLAYING;
}
break;
case STATUS_REINIT:
/* Re-initialize streaming driver */
snd_stream_reinit(stream_hnd, NULL);
sndmp3_status = STATUS_READY;
break;
case STATUS_PLAYING: {
sj = jiffies;
if (snd_stream_poll(stream_hnd) < 0) {
if (sndmp3_loop) {
printf("sndserver: restarting '%s'\r\n", mp3_last_fn);
if (libmpg123_init(mp3_last_fn) < 0) {
sndmp3_status = STATUS_STOPPING;
mp3_last_fn[0] = 0;
}
} else {
printf("sndserver: not restarting\r\n");
snd_stream_stop(stream_hnd);
sndmp3_status = STATUS_READY;
mp3_last_fn[0] = 0;
}
// stream_start();
} else
thd_sleep(50);
break;
}
case STATUS_STOPPING:
snd_stream_stop(stream_hnd);
sndmp3_status = STATUS_READY;
break;
}
}
/* Done: clean up */
libmpg123_shutdown();
snd_stream_stop(stream_hnd);
snd_stream_destroy(stream_hnd);
sndmp3_status = STATUS_ZOMBIE;
}
/* Call this function as a thread to handle playback. Playback will
stop and this thread will return when you call sndmp3_shutdown(). */
static void sndmp3_thread() {
int sj;
stream_hnd = snd_stream_alloc(NULL, SND_STREAM_BUFFER_MAX);
//assert( stream_hnd != -1 );
/* Main command loop */
while(sndmp3_status != STATUS_QUIT) {
switch(sndmp3_status) {
case STATUS_INIT:
sndmp3_status = STATUS_READY;
break;
case STATUS_READY:
printf("sndserver: waiting on semaphore\r\n");
sem_wait(sndmp3_halt_sem);
printf("sndserver: released from semaphore\r\n");
break;
case STATUS_STARTING:
/* Initialize streaming driver */
if (snd_stream_reinit(stream_hnd, mpglib_callback) < 0) {
sndmp3_status = STATUS_READY;
} else {
//snd_stream_start(stream_hnd, decinfo.samprate, decinfo.channels - 1);
//snd_stream_start(stream_hnd, 44100, 1);
snd_stream_start(stream_hnd, freqs[mp.fr.sampling_frequency], mp.fr.stereo);
sndmp3_status = STATUS_PLAYING;
}
break;
case STATUS_REINIT:
/* Re-initialize streaming driver */
snd_stream_reinit(stream_hnd, NULL);
sndmp3_status = STATUS_READY;
break;
case STATUS_PLAYING: {
sj = jiffies;
if (snd_stream_poll(stream_hnd) < 0) {
if (sndmp3_loop) {
printf("sndserver: restarting '%s'\r\n", mp3_last_fn);
if (mpglib_init(mp3_last_fn) < 0) {
sndmp3_status = STATUS_STOPPING;
mp3_last_fn[0] = 0;
}
} else {
printf("sndserver: not restarting\r\n");
snd_stream_stop(stream_hnd);
sndmp3_status = STATUS_READY;
mp3_last_fn[0] = 0;
}
// stream_start();
} else
thd_sleep(50);
break;
}
case STATUS_STOPPING:
snd_stream_stop(stream_hnd);
sndmp3_status = STATUS_READY;
break;
}
}
/* Done: clean up */
mpglib_shutdown();
snd_stream_stop(stream_hnd);
snd_stream_destroy(stream_hnd);
sndmp3_status = STATUS_ZOMBIE;
}
/* sndoggvorbis_thread()
*
* this function is called by sndoggvorbis_mainloop and handles all the threads
* status handling and playing functionality.
*/
void sndoggvorbis_thread()
{
int stat;
stream_hnd = snd_stream_alloc(NULL, SND_STREAM_BUFFER_MAX);
assert( stream_hnd != SND_STREAM_INVALID );
while(sndoggvorbis_status != STATUS_QUIT)
{
switch(sndoggvorbis_status)
{
case STATUS_INIT:
sndoggvorbis_status= STATUS_READY;
break;
case STATUS_READY:
printf("oggthread: waiting on semaphore\n");
sem_wait(sndoggvorbis_halt_sem);
printf("oggthread: released from semaphore (status=%d)\n", sndoggvorbis_status);
break;
case STATUS_QUEUEING: {
vorbis_info * vi = ov_info(&vf, -1);
snd_stream_reinit(stream_hnd, callback);
snd_stream_queue_enable(stream_hnd);
printf("oggthread: stream_init called\n");
snd_stream_start(stream_hnd, vi->rate, vi->channels - 1);
snd_stream_volume(stream_hnd, sndoggvorbis_vol);
printf("oggthread: stream_start called\n");
if (sndoggvorbis_status != STATUS_STOPPING)
sndoggvorbis_status = STATUS_QUEUED;
break;
}
case STATUS_QUEUED:
printf("oggthread: queue waiting on semaphore\n");
sem_wait(sndoggvorbis_halt_sem);
printf("oggthread: queue released from semaphore\n");
break;
case STATUS_STARTING: {
vorbis_info * vi = ov_info(&vf, -1);
if (sndoggvorbis_queue_enabled) {
snd_stream_queue_go(stream_hnd);
} else {
snd_stream_reinit(stream_hnd, callback);
printf("oggthread: stream_init called\n");
snd_stream_start(stream_hnd, vi->rate, vi->channels - 1);
printf("oggthread: stream_start called\n");
}
snd_stream_volume(stream_hnd, sndoggvorbis_vol);
sndoggvorbis_status=STATUS_PLAYING;
break;
}
case STATUS_PLAYING:
/* Preliminary Bitrate Code
* For our tests the bitrate is being set in the struct once in a
* while so that the user can just read out this value from the struct
* and use it for whatever purpose
*/
/* if (tempcounter==sndoggvorbis_bitrateint)
{
long test;
if((test=VorbisFile_getBitrateInstant()) != -1)
{
sndoggvorbis_info.actualbitrate=test;
}
tempcounter = 0;
}
tempcounter++; */
/* Stream Polling and end-of-stream detection */
if ( (stat = snd_stream_poll(stream_hnd)) < 0)
{
printf("oggthread: stream ended (status %d)\n", stat);
printf("oggthread: not restarting\n");
snd_stream_stop(stream_hnd);
/* Reset our PCM buffer */
pcm_count = 0;
last_read = 0;
pcm_ptr = pcm_buffer;
/* This can also happen sometimes when you stop the stream
manually, so we'll call this here to make sure */
ov_clear(&vf);
sndoggvorbis_lastfilename[0] = 0;
sndoggvorbis_status = STATUS_READY;
sndoggvorbis_clear_comments();
} else {
/* Sleep some until the next buffer is needed */
thd_sleep(50);
}
break;
case STATUS_STOPPING:
snd_stream_stop(stream_hnd);
ov_clear(&vf);
/* Reset our PCM buffer */
pcm_count = 0;
last_read = 0;
pcm_ptr = pcm_buffer;
sndoggvorbis_lastfilename[0] = 0;
sndoggvorbis_status = STATUS_READY;
sndoggvorbis_clear_comments();
break;
}
}
snd_stream_stop(stream_hnd);
snd_stream_destroy(stream_hnd);
sndoggvorbis_status=STATUS_ZOMBIE;
printf("oggthread: thread released\n");
}
static void start_audio() {
aud_set = 1;
//snd_stream_prefill(shnd);
snd_stream_start(shnd, sample_rate, chans-1);
loop_thread = thd_create(0, play_loop, NULL);
}
