mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "forced", mlt_image_yuv422 );
mlt_service_attach( MLT_CONSUMER_SERVICE( parent ), filter );
mlt_filter_close( filter );
mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "forced", mlt_image_yuv422 );
mlt_service_attach( MLT_CONSUMER_SERVICE( parent ), filter );
mlt_filter_close( filter );