/* sndoggvorbis_volume(...)
*
* function to set the volume of the streaming channel
*/
void sndoggvorbis_volume(int vol)
{
sndoggvorbis_vol = vol;
snd_stream_volume(stream_hnd, vol);
}
/* Adjust the MP3 volume */
void sndmp3_volume(int vol) {
snd_stream_volume(stream_hnd, vol);
}
/* 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");
}
