pub fn copy_block(dst: &mut NASimpleVideoFrame<u8>, src: NAVideoBufferRef<u8>, comp: usize,
dx: usize, dy: usize, mv_x: i16, mv_y: i16, bw: usize, bh: usize,
preborder: usize, postborder: usize,
pub fn copy_block(dst: &mut NASimpleVideoFrame<u8>, src: NAVideoBufferRef<u8>, comp: usize,
dx: usize, dy: usize, mv_x: i16, mv_y: i16, bw: usize, bh: usize,
preborder: usize, postborder: usize,