set_subcategory( SUBCAT_VIDEO_VFILTER );
set_capability( "video filter2", 0 );
add_float_with_range( "sharpen-sigma", 0.05, 0.0, 2.0, NULL,
set_subcategory( SUBCAT_VIDEO_VFILTER );
set_capability( "video filter2", 0 );
add_float_with_range( "sharpen-sigma", 0.05, 0.0, 2.0, NULL,