pthread_cond_t refresh_cond;
pthread_mutex_t refresh_mutex;
int refresh_count;
+ bool is_purge;
mlt_consumer getConsumer()
{ return &consumer; }
, audio_avail(0)
, playing(0)
, refresh_count(0)
+ , is_purge(false)
{
memset( &consumer, 0, sizeof( consumer ) );
}
return 0;
}
+ void purge()
+ {
+ if ( running )
+ {
+ pthread_mutex_lock( &video_mutex );
+ mlt_frame frame = MLT_FRAME( mlt_deque_peek_back( queue ) );
+ // When playing rewind or fast forward then we need to keep one
+ // frame in the queue to prevent playback stalling.
+ double speed = frame? mlt_properties_get_double( MLT_FRAME_PROPERTIES(frame), "_speed" ) : 0;
+ int n = ( speed == 0.0 || speed == 1.0 ) ? 0 : 1;
+ while ( mlt_deque_count( queue ) > n )
+ mlt_frame_close( MLT_FRAME( mlt_deque_pop_back( queue ) ) );
+ is_purge = true;
+ pthread_cond_broadcast( &video_cond );
+ pthread_mutex_unlock( &video_mutex );
+ }
+ }
+
void consumer_thread()
{
// Get the properties
if ( running && speed )
{
pthread_mutex_lock( &video_mutex );
- mlt_deque_push_back( queue, frame );
- pthread_cond_broadcast( &video_cond );
+ if ( is_purge && speed == 1.0 )
+ {
+ mlt_frame_close( frame );
+ is_purge = false;
+ }
+ else
+ {
+ mlt_deque_push_back( queue, frame );
+ pthread_cond_broadcast( &video_cond );
+ }
pthread_mutex_unlock( &video_mutex );
// Calculate the next playtime
return !rtaudio->running;
}
+static void purge( mlt_consumer consumer )
+{
+ RtAudioConsumer* rtaudio = (RtAudioConsumer*) consumer->child;
+ rtaudio->purge();
+}
+
/** Close the consumer.
*/
consumer->start = start;
consumer->stop = stop;
consumer->is_stopped = is_stopped;
+ consumer->purge = purge;
}
else
{