US 12,267,530 B2
Methods for coding or decoding video parameter set or sequence parameter set
Jie Chen, Beijing (CN); Jiancong Luo, Skillman, NJ (US); Yan Ye, San Diego, CA (US); and Ru-Ling Liao, Beijing (CN)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on Jun. 29, 2023, as Appl. No. 18/344,643.
Application 18/344,643 is a continuation of application No. 17/804,437, filed on May 27, 2022, granted, now 11,736,733.
Application 17/804,437 is a continuation of application No. 17/214,220, filed on Mar. 26, 2021, granted, now 11,381,842, issued on Jul. 5, 2022.
Claims priority of provisional application 62/994,995, filed on Mar. 26, 2020.
Prior Publication US 2023/0345054 A1, Oct. 26, 2023
Int. Cl. H04N 19/70 (2014.01); H04N 19/169 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/1883 (2014.11); H04N 19/46 (2014.11); H04N 19/188 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method for encoding video, comprising:
determining whether a coded video sequence (CVS) has equal number of decoded picture buffer (DPB) parameter syntax structures and output layer sets (OLSs); and
in response to the CVS having equal number of DPB parameter syntax structures and OLSs, coding a bitstream without signaling a first DPB syntax element specifying an index, to a list of DPB parameter syntax structures in a video parameter set (VPS), of a DPB parameter syntax structure that applies to a corresponding OLS.