* \extends mlt_service_s
* \properties \em track the index of the track of a multitrack on which the filter is applied
* \properties \em service a reference to the service to which this filter is attached.
+ * \properties \em disable Set this to disable the filter while keeping it in the object model.
* Currently this is not cleared when the filter is detached.
*/
extern mlt_position mlt_filter_get_in( mlt_filter self );
extern mlt_position mlt_filter_get_out( mlt_filter self );
extern mlt_position mlt_filter_get_length( mlt_filter self );
+extern mlt_position mlt_filter_get_length2( mlt_filter self, mlt_frame frame );
+extern mlt_position mlt_filter_get_position( mlt_filter self, mlt_frame frame );
extern double mlt_filter_get_progress( mlt_filter self, mlt_frame frame );
extern void mlt_filter_close( mlt_filter );