// Ensure we get scaling on the b_frame
mlt_properties_set( b_props, "rescale.interp", "nearest" );
+ if ( mlt_properties_get( properties, "fixed" ) )
+ mix = mlt_properties_get_double( properties, "fixed" );
+
if ( luma_width > 0 && luma_height > 0 && luma_bitmap != NULL )
// Composite the frames using a luma map
luma_composite( a_frame, b_frame, luma_width, luma_height, luma_bitmap, mix, frame_delta,