US 12,301,799 B2
Controlling deblocking filtering at different levels in coded video
Zhipin Deng, Beijing (CN); Li Zhang, San Diego, CA (US); Ye-Kui Wang, San Diego, CA (US); Kai Zhang, San Diego, CA (US); and Jizheng Xu, San Diego, CA (US)
Assigned to BEIJING BYTEDANCE NETWORK TECHNOLOGY CO., LTD., Beijing (CN); and BYTEDANCE INC., Los Angeles, CA (US)
Filed by Beijing Bytedance Network Technology Co., Ltd., Beijing (CN); and Bytedance Inc., Los Angeles, CA (US)
Filed on Sep. 22, 2022, as Appl. No. 17/950,411.
Application 17/950,411 is a continuation of application No. PCT/CN2021/082242, filed on Mar. 23, 2021.
Claims priority of application No. PCT/CN2020/080602 (WO), filed on Mar. 23, 2020.
Prior Publication US 2023/0044750 A1, Feb. 9, 2023
Int. Cl. H04N 19/117 (2014.01); H04N 19/105 (2014.01); H04N 19/132 (2014.01); H04N 19/139 (2014.01); H04N 19/159 (2014.01); H04N 19/174 (2014.01); H04N 19/176 (2014.01); H04N 19/186 (2014.01); H04N 19/463 (2014.01); H04N 19/52 (2014.01); H04N 19/70 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/117 (2014.11) [H04N 19/105 (2014.11); H04N 19/132 (2014.11); H04N 19/139 (2014.11); H04N 19/159 (2014.11); H04N 19/174 (2014.11); H04N 19/176 (2014.11); H04N 19/186 (2014.11); H04N 19/463 (2014.11); H04N 19/52 (2014.11); H04N 19/70 (2014.11); H04N 19/80 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
performing a conversion between a video comprising a picture comprising one or more slices and a bitstream of the video,
wherein the conversion conforms to a rule that specifies that whether a deblocking filter is applied to a current slice referring to a picture parameter set (PPS) is based at least on a first syntax element included a picture header (PH) associated with the current slice, wherein the current slice is one of the one or more slices comprised in the picture,
wherein the first syntax element indicates whether the deblocking filter is disabled for the picture,
wherein the rule specifies that whether the deblocking filter is applied to the one or more slices referring to the picture parameter set is further based on at least one of:
a second syntax element in the PPS indicating whether the deblocking filter is disabled for pictures referring to the PPS, and
a third syntax element a slice header (SH) indicating whether the deblocking filter is indicated as being disabled, and
wherein the first syntax element is a ph_deblocking_filter_disabled_flag and the second syntax element is a pps_deblocking_filter_disabled flag, wherein a presence of the ph_deblocking_filter_disabled_flag in the PH is based on a value of the pps_deblocking_filter_disabled_flag, and wherein the ph_deblocking_filter_disabled_flag is included in the PH at least based on when a value of the pps_deblocking_filter_disabled_flag is not being equal to 1, and the ph_deblocking_filter_disabled_flag is not present in the PH when the value of the pps_deblocking_filter_disabled_flag is equal to 1.