static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index );
static int mlt_playlist_unmix( mlt_playlist self, int clip );
static int mlt_playlist_resize_mix( mlt_playlist self, int clip, int in, int out );
+static void mlt_playlist_next( mlt_listener listener, mlt_properties owner, mlt_service self, void **args );
/** Construct a playlist.
*
mlt_playlist mlt_playlist_init( )
{
- mlt_playlist self = calloc( sizeof( struct mlt_playlist_s ), 1 );
+ mlt_playlist self = calloc( 1, sizeof( struct mlt_playlist_s ) );
if ( self != NULL )
{
mlt_producer producer = &self->parent;
// Construct the producer
- mlt_producer_init( producer, self );
+ if ( mlt_producer_init( producer, self ) != 0 ) goto error1;
// Override the producer get_frame
producer->get_frame = producer_get_frame;
producer->close_object = self;
// Initialise blank
- mlt_producer_init( &self->blank, NULL );
+ if ( mlt_producer_init( &self->blank, NULL ) != 0 ) goto error1;
mlt_properties_set( MLT_PRODUCER_PROPERTIES( &self->blank ), "mlt_service", "blank" );
mlt_properties_set( MLT_PRODUCER_PROPERTIES( &self->blank ), "resource", "blank" );
mlt_properties_set_position( MLT_PLAYLIST_PROPERTIES( self ), "length", 0 );
self->size = 10;
- self->list = malloc( self->size * sizeof( playlist_entry * ) );
+ self->list = calloc( self->size, sizeof( playlist_entry * ) );
+ if ( self->list == NULL ) goto error2;
+
+ mlt_events_register( MLT_PLAYLIST_PROPERTIES( self ), "playlist-next", (mlt_transmitter) mlt_playlist_next );
}
return self;
+error2:
+ free( self->list );
+error1:
+ free( self );
+ return NULL;
}
/** Construct a playlist with a profile.
}
// Create the entry
- self->list[ self->count ] = calloc( sizeof( playlist_entry ), 1 );
+ self->list[ self->count ] = calloc( 1, sizeof( playlist_entry ) );
if ( self->list[ self->count ] != NULL )
{
self->list[ self->count ]->producer = producer;
return producer;
}
+/** The transmitter for the producer-next event
+ *
+ * Invokes the listener.
+ *
+ * \private \memberof mlt_playlist_s
+ * \param listener a function pointer that will be invoked
+ * \param owner the events object that will be passed to \p listener
+ * \param self a service that will be passed to \p listener
+ * \param args an array of pointers.
+ */
+
+static void mlt_playlist_next( mlt_listener listener, mlt_properties owner, mlt_service self, void **args )
+{
+ if ( listener )
+ listener( owner, self, args[ 0 ] );
+}
+
+
/** Seek in the virtual playlist.
*
* This gets the producer at the current position and seeks on the producer
producer = &self->blank;
}
+ // Determine if we have moved to the next entry in the playlist.
+ if ( original == total - 2 )
+ mlt_events_fire( properties, "playlist-next", i, NULL );
+
return MLT_PRODUCER_SERVICE( producer );
}
// Get the clip info
mlt_playlist_get_clip_info( self, &where_info, where );
- // Make sure the clip to be removed is valid and correct if necessary
- if ( where < 0 )
- where = 0;
- if ( where >= self->count )
- where = self->count - 1;
-
// Reorganise the list
for ( i = where + 1; i < self->count; i ++ )
self->list[ i - 1 ] = self->list[ i ];
mlt_producer track_a = NULL;
mlt_producer track_b = NULL;
mlt_tractor tractor = mlt_tractor_new( );
+
+ mlt_service_set_profile( MLT_TRACTOR_SERVICE( tractor ),
+ mlt_service_profile( MLT_PLAYLIST_SERVICE( self ) ) );
+ mlt_properties_set_lcnumeric( MLT_TRACTOR_PROPERTIES( tractor ),
+ mlt_properties_get_lcnumeric( MLT_PLAYLIST_PROPERTIES( self ) ) );
mlt_events_block( MLT_PLAYLIST_PROPERTIES( self ), self );
// Check length is valid for both clips and resize if necessary.