extern void *mlt_frame_pop_service( mlt_frame self );
extern int mlt_frame_push_audio( mlt_frame self, void *that );
extern void *mlt_frame_pop_audio( mlt_frame self );
+extern mlt_producer mlt_frame_get_original_producer( mlt_frame self );
extern void mlt_frame_close( mlt_frame self );
/* convenience functions */