extern int mlt_properties_set_rect( mlt_properties self, const char *name, mlt_rect value );
extern mlt_rect mlt_properties_get_rect( mlt_properties self, const char *name );
extern int mlt_properties_anim_set_rect( mlt_properties self, const char *name, mlt_rect value, int position, int length, mlt_keyframe_type keyframe_type );
extern mlt_rect mlt_properties_anim_get_rect( mlt_properties self, const char *name, int position, int length );
extern int mlt_properties_set_rect( mlt_properties self, const char *name, mlt_rect value );
extern mlt_rect mlt_properties_get_rect( mlt_properties self, const char *name );
extern int mlt_properties_anim_set_rect( mlt_properties self, const char *name, mlt_rect value, int position, int length, mlt_keyframe_type keyframe_type );
extern mlt_rect mlt_properties_anim_get_rect( mlt_properties self, const char *name, int position, int length );