ENCODING OR DECODING METHOD AND APPARATUS

摘要

Embodiments of the present invention provide an encoding or decoding method and apparatus. The method includes: extracting first information in a bitstream; determining a chroma component intra prediction mode according to the first information; when the chroma component intra prediction mode cannot be determined according to the first information, extracting second information in the bitstream; and determining the chroma component intra prediction mode according to the second information, where the first information includes information for indicating whether the chroma component intra prediction mode is a DM mode or an LM mode, the second information is used to indicate a remaining mode as the chroma component intra prediction mode, and the remaining mode is one of available chroma component intra prediction modes other than a mode that may be determined according to the first information.

主权项

1. A decoding method, comprising:
extracting first information in a bitstream; parsing the first information; determining, according to the parsed first information, if a chroma component intra prediction mode for a current block is a DM mode; when the chroma component intra prediction mode for the current block is not the DM mode, extracting second information from the bitstream; parsing the second information; and determining the chroma component intra prediction mode according to the parsed second information, wherein the parsed second information indicates a remaining mode of the chroma component intra prediction mode, wherein the remaining mode is one of available chroma component intra prediction modes other than the DM mode.