extern int mlt_consumer_connect( mlt_consumer this, mlt_service producer );
extern int mlt_consumer_start( mlt_consumer this );
extern mlt_frame mlt_consumer_get_frame( mlt_consumer this );
-extern mlt_frame mlt_consumer_rt_frame( mlt_consumer this, mlt_image_format format );
+extern mlt_frame mlt_consumer_rt_frame( mlt_consumer this );
extern int mlt_consumer_stop( mlt_consumer this );
extern int mlt_consumer_is_stopped( mlt_consumer this );
extern void mlt_consumer_close( mlt_consumer );