extern void mlt_property_close( mlt_property self );
extern void mlt_property_pass( mlt_property self, mlt_property that );
extern char *mlt_property_get_time( mlt_property self, mlt_time_format, double fps, locale_t );
+extern int mlt_property_interpolate( mlt_property self, mlt_property points[],
+ double progress, double fps, locale_t locale, mlt_keyframe_type interp );
+extern double mlt_property_anim_get_double( mlt_property self, double fps, locale_t locale, int position, int length );
+extern int mlt_property_anim_get_int( mlt_property self, double fps, locale_t locale, int position, int length );
+extern int mlt_property_anim_set_double( mlt_property self, double value, double fps, locale_t locale,
+ mlt_keyframe_type keyframe_type, int position, int length );
+extern int mlt_property_anim_set_int( mlt_property self, int value, double fps, locale_t locale,
+ mlt_keyframe_type keyframe_type, int position, int length );
+extern int mlt_property_set_rect( mlt_property self, mlt_rect value );
+extern mlt_rect mlt_property_get_rect( mlt_property self, locale_t locale );
+extern int mlt_property_anim_set_rect( mlt_property self, mlt_rect value, double fps, locale_t locale,
+ mlt_keyframe_type keyframe_type, int position, int length );
+extern mlt_rect mlt_property_anim_get_rect( mlt_property self, double fps, locale_t locale, int position, int length );
#endif