h263_interp00, h263_interp01, h263_interp10, h263_interp11 ];
fn h263_interp00_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize)
h263_interp00, h263_interp01, h263_interp10, h263_interp11 ];
fn h263_interp00_avg(dst: &mut [u8], dstride: usize, src: &[u8], sstride: usize, bw: usize, bh: usize)