#include "mlt_producer.h"
extern mlt_tractor mlt_tractor_init( );
+extern mlt_tractor mlt_tractor_new( );
extern mlt_service mlt_tractor_service( mlt_tractor self );
extern mlt_producer mlt_tractor_producer( mlt_tractor self );
extern mlt_properties mlt_tractor_properties( mlt_tractor self );
+extern mlt_field mlt_tractor_field( mlt_tractor self );
+extern mlt_multitrack mlt_tractor_multitrack( mlt_tractor self );
extern int mlt_tractor_connect( mlt_tractor self, mlt_service service );
extern void mlt_tractor_close( mlt_tractor self );