Encoders, decoders and corresponding methods using IBC search range optimization for arbitrary CTU sizes

摘要

The present disclosure provides a video coding method implemented by an encoding device or a decoding device for optimal use of a hardware reference memory buffer, wherein reference coding tree units (CTUs) for intra block copy (IBC) mode prediction of a current block of a current CTU ) group is determined based on the size of the current CTU, and the reference sample of the current block is obtained from the reference CTU group.