int bg_avdec_set_track(void * priv, int track)
{
int i;
avdec_priv * avdec = priv;
if(!bgav_select_track(avdec->dec, track))
return 0;
avdec->current_track = &(avdec->track_info[track]);
/* Get formats (need them for compressed output */
for(i = 0; i < avdec->current_track->num_audio_streams; i++)
gavl_audio_format_copy(&(avdec->current_track->audio_streams[i].format),
bgav_get_audio_format(avdec->dec, i));
for(i = 0; i < avdec->current_track->num_video_streams; i++)
gavl_video_format_copy(&(avdec->current_track->video_streams[i].format),
bgav_get_video_format(avdec->dec, i));
return 1;
}
void *the_thread_opener(void *xp) {
ReadMedia *rm = NULL;
int num_urls=0, num_tracks=0, audio_stream_count=0, video_stream_count =0;
rm = (ReadMedia *)xp;
rm->setState(STATE_OPENING);
// AFTER WE KILL THE THREADS, THERE IS NO NEED TO LOCK AV mutex
// ALL functions that want to get info on the file, seek,
// or decode a frame, MUST first check the state. If the
// state is STATE_READY, then it can perform it's function,
// locking on the necessary variables that might conflict with
// the AV.
// clearFile deletes old file and creates new File
rm->clearFile();
if(!bgav_open(rm->getFile(), rm->getFilename())) {
printf( "Could not open file %s\n", rm->getFilename());
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL);
//return NULL;
} else {
printf("opened %s\n", rm->getFilename());
}
// check to see if it is a redirector
if(bgav_is_redirector( rm->getFile() )) {
num_urls = bgav_redirector_get_num_urls( rm->getFile() );
printf( "Found redirector with %d urls inside, we will try to use the first one.\n", num_urls);
printf( "Name %d: %s\n", 1, bgav_redirector_get_name(rm->getFile() , 0));
printf("URL %d: %s\n", 1, bgav_redirector_get_url(rm->getFile(), 0));
sprintf(rm->getFilename(), "%s", bgav_redirector_get_url(rm->getFile(), 0) );
rm->clearFile();
if (!bgav_open( rm->getFile(), rm->getFilename() )) {
printf("Could not open redirector\n");
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL);
//return NULL;
} else {
printf("opened redirector %s\n", rm->getFilename());
}
}
num_tracks = bgav_num_tracks(rm->getFile());
if ( num_tracks ) {
bgav_select_track(rm->getFile(), 0);
} else {
printf("No tracks associated with file:%s\n", rm->getFilename() );
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL);
}
audio_stream_count = bgav_num_audio_streams(rm->getFile(), 0);
if( audio_stream_count )
bgav_set_audio_stream(rm->getFile(), 0, BGAV_STREAM_DECODE);
video_stream_count = bgav_num_video_streams(rm->getFile(), 0);
if( video_stream_count )
bgav_set_video_stream(rm->getFile(), 0, BGAV_STREAM_DECODE);
rm->setVideoStreamCount(video_stream_count);
rm->setAudioStreamCount(audio_stream_count);
//printf("astream_count = %d, vstream_count=%d\n", audio_stream_count, video_stream_count);
if(!bgav_start(rm->getFile())) {
printf( "failed to start file\n");
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL) ;
//return NULL;
}
if( !rm->initFormat() ){
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL) ;
}
if( !rm->startAVThreads() ){
rm->setState( STATE_EMPTY );
rm->closeFile();
rm->callOpenCallback();
pthread_exit(NULL) ;
}
// AV threads are now running, blocking will be necessary
// STATE_READY and callOpenCallback is set/called in the
// fifo fill callbacks
rm->signalAV();
rm->signalAV(); //extra signal for second thread
pthread_exit(NULL);
//return NULL;
}
