Patent ID: 11924418
Assignee: BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD.
Field: nan (nan)
Classification: CPC nan | IPC H

Claim 10:
11. An apparatus for processing video data comprising a processor and a non-transitory memory with instructions thereon, wherein the instructions upon execution by the processor, cause the processor to:
perform a conversion between a video and a bitstream of the video according to a format rule,
wherein the format rule specifies whether values of one or more first syntax elements related to adaptive loop filters used for a chroma component included in an adaptation parameter set (APS) are constrained or not is based on: (i) whether a second syntax element at a picture level or a slice level indicating an APS identifier that a luma component refers to is present or not, and (ii) whether an index of color format is equal to 0 or not, and
wherein the one or more first syntax elements comprise at least one of a syntax element indicating whether a chroma filter is signalled or not which equal to 0 indicating the chroma filter is not signalled, a syntax element indicating whether cross-component filters for a Cr colour component are signalled or not which equal to 0 indicating the cross-component filters for the Cr colour component are not signalled, or a syntax element indicating whether cross-component filters for a Cb colour component are signalled or not which equal to 0 indicating the cross-component filters for the Cb colour component are not signalled.