Improved top probability mod list generation scheme

摘要

A method of signaling an intra prediction mode used to encode a current block in a video bitstream encoded using at least one processor, the method comprising: determining a plurality of candidate intra prediction modes; generating a highest probability mode (MPM) list using a plurality of candidate intra prediction modes; signaling a reference line index indicating a reference line used for encoding a current block among a plurality of reference lines including an adjacent reference line and a plurality of non-adjacent reference lines; and signaling an intra mode index indicating an intra prediction mode, wherein the MPM list is generated based on a reference line used for encoding the current block and whether an intra sub-partition (ISP) mode is enabled.