US 12,335,532 B2
Using subpictures and tiles in video coding
Ye-kui Wang, San Diego, CA (US); Li Zhang, San Diego, CA (US); Jizheng Xu, San Diego, CA (US); and Kai Zhang, San Diego, CA (US)
Assigned to Bytedance Inc., Los Angeles, CA (US)
Filed by Bytedance Inc., Los Angeles, CA (US)
Filed on Nov. 30, 2023, as Appl. No. 18/525,057.
Application 18/525,057 is a continuation of application No. 17/994,748, filed on Nov. 28, 2022.
Application 17/994,748 is a continuation of application No. PCT/US2021/034259, filed on May 26, 2021.
Claims priority of provisional application 63/030,726, filed on May 27, 2020.
Prior Publication US 2024/0129541 A1, Apr. 18, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/70 (2014.01); H04N 19/105 (2014.01); H04N 19/172 (2014.01); H04N 19/186 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/105 (2014.11); H04N 19/172 (2014.11); H04N 19/186 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
performing a conversion between a video and a bitstream of the video according to a rule,
wherein the rule specifies that only one of the following two conditions is true when a number of subpictures minus 1 indicated by a first syntax element in a sequence parameter set is greater than zero and when a current subpicture with a subpicture index subpicIdx of a first video picture of the video has a second syntax element in the sequence parameter set indicates that a subpicture with the subpicture index subpicIdx of each video picture of the video in a coded layer video sequence is treated as a video picture in a decoding process that excludes an in-loop filtering operation:
(1) a second video picture referred to by each active entry in a first reference picture list or a second reference picture list of the first video picture and the first video picture have a same value for each of multiple syntax elements related to dimension information; or
(2) a second video picture referred to by each active entry in a first reference picture list or a second reference picture list is an inter-layer reference picture entry for which a value of the first syntax element indicating the number of subpictures minus 1 is equal to zero.