int bg_avdec_init(avdec_priv * avdec)
{
int i;
const bgav_metadata_t * m;
const gavl_chapter_list_t * cl;
gavl_time_t duration;
avdec->num_tracks = bgav_num_tracks(avdec->dec);
avdec->track_info = calloc(avdec->num_tracks, sizeof(*(avdec->track_info)));
for(i = 0; i < avdec->num_tracks; i++)
{
avdec->track_info[i].num_audio_streams = bgav_num_audio_streams(avdec->dec, i);
avdec->track_info[i].num_video_streams = bgav_num_video_streams(avdec->dec, i);
avdec->track_info[i].num_text_streams = bgav_num_text_streams(avdec->dec, i);
avdec->track_info[i].num_overlay_streams = bgav_num_overlay_streams(avdec->dec, i);
if(bgav_can_seek(avdec->dec))
avdec->track_info[i].flags |= BG_TRACK_SEEKABLE;
if(bgav_can_pause(avdec->dec))
avdec->track_info[i].flags |= BG_TRACK_PAUSABLE;
if(avdec->track_info[i].num_audio_streams)
{
avdec->track_info[i].audio_streams =
calloc(avdec->track_info[i].num_audio_streams,
sizeof(*avdec->track_info[i].audio_streams));
}
if(avdec->track_info[i].num_video_streams)
{
avdec->track_info[i].video_streams =
calloc(avdec->track_info[i].num_video_streams,
sizeof(*avdec->track_info[i].video_streams));
}
if(avdec->track_info[i].num_text_streams)
{
avdec->track_info[i].text_streams =
calloc(avdec->track_info[i].num_text_streams,
sizeof(*avdec->track_info[i].text_streams));
}
if(avdec->track_info[i].num_overlay_streams)
{
avdec->track_info[i].overlay_streams =
calloc(avdec->track_info[i].num_overlay_streams,
sizeof(*avdec->track_info[i].overlay_streams));
}
duration = bgav_get_duration(avdec->dec, i);
if(duration != GAVL_TIME_UNDEFINED)
gavl_metadata_set_long(&avdec->track_info[i].metadata,
GAVL_META_APPROX_DURATION, duration);
/* Get metadata */
m = bgav_get_metadata(avdec->dec, i);
gavl_metadata_copy(&avdec->track_info[i].metadata, m);
/* Get chapters */
cl = bgav_get_chapter_list(avdec->dec, i);
if(cl)
{
avdec->track_info[i].chapter_list =
gavl_chapter_list_copy(cl);
bg_chapter_list_set_default_names(avdec->track_info[i].chapter_list);
}
}
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;
}
