extern mlt_properties mlt_factory_event_object( );
extern mlt_producer mlt_factory_producer( const char *name, void *input );
extern mlt_filter mlt_factory_filter( const char *name, void *input );
extern mlt_properties mlt_factory_event_object( );
extern mlt_producer mlt_factory_producer( const char *name, void *input );
extern mlt_filter mlt_factory_filter( const char *name, void *input );