A method includes transcoding, by a first transcoding process, a first sub-partition of a current block using a first set of reference pixels. Also, the method includes transcoding, by a second transcoding process, a second sub-partition of the current block using the first set of reference pixels. The first transcoding process transcodes a third sub-partition of the current block based on a second set of reference pixels. The second transcoding process transcodes a fourth sub-partition of the current block based on a third set of reference pixels.