Patent ID: 11902518
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. 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:
apply, in a conversion between a video comprising multiple color components and a bitstream of the video, a deblocking filter to video blocks of the multiple color components; and
perform the conversion based on the applied deblocking filter,
wherein a deblocking filter strength for the deblocking filter of the video blocks of each of the multiple color components is determined according to a rule;
wherein the rule specifies to use a different manner for determining the deblocking filter strength for the video blocks of each of the multiple color components;
wherein the multiple color components comprise at least a Cb component and a Cr component; and wherein each of the multiple color components is associated with deblocking parameter offsets for a variable beta and a variable tC in different video unit levels which are used to determine the deblocking filter strength; and
wherein the different video unit levels comprise a picture parameter set (PPS), wherein a first syntax element associated with the Cb component indicating the deblocking parameter offsets for the variable beta in the PPS is pps_cb_beta_offset_div2 and a first syntax element associated with the Cr component indicating the deblocking parameter offsets for the variable beta in the PPS is pps_cr_beta_offset_div2; and a second syntax element associated with the Cb component indicating the deblocking parameter offsets for the variable tC in the PPS is pps_cb_tc_offset_div2 and a second syntax element associated with the Cr component indicating the deblocking parameter offsets for the variable tC in the PPS is pps_cr_tc_offset_div2.