Methods and Apparatuses for Transform Skip Mode Information Signaling

摘要

Video processing methods and apparatuses in a video coding system include receiving input video data of a current block in a current picture, determining whether a transform skip mode is enabled for the current picture, signaling or parsing a syntax element associated with a size constraint for enabling the transform skip mode in a SPS referred to by the current picture when the transform skip mode is enabled, determining whether the transform skip mode is applied to the current block when the current block satisfies the size constraint, processing residues of the current block according to the transform skip mode when the transform skip mode is applied to the current block, and encoding or decoding the current block. An enabling flag is signaled in a high-level syntax set or parsed from the high-level syntax set to determine whether the transform skip mode is enabled for the current picture.