US 12,075,076 B2
Error mitigation for sublayers in video coding
Ye-Kui Wang, San Diego, CA (US)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Mar. 24, 2022, as Appl. No. 17/703,401.
Application 17/703,401 is a continuation of application No. PCT/US2020/049730, filed on Sep. 8, 2020.
Claims priority of provisional application 62/905,244, filed on Sep. 24, 2019.
Prior Publication US 2022/0217395 A1, Jul. 7, 2022
Int. Cl. H04N 19/00 (2014.01); H04N 19/149 (2014.01); H04N 19/154 (2014.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/187 (2014.01); H04N 19/30 (2014.01); H04N 19/423 (2014.01); H04N 19/44 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/149 (2014.11); H04N 19/154 (2014.11); H04N 19/172 (2014.11); H04N 19/187 (2014.11); H04N 19/188 (2014.11); H04N 19/30 (2014.11); H04N 19/423 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method implemented by a decoder, the method comprising:
receiving a bitstream comprising a video parameter set (VPS), one or more sublayers, and a buffering period (BP) maximum sublayers minus one (bp_max_sublayers_minus1) set to a value in a range of zero to a maximum number of sublayers specified by the VPS, and a hypothetical reference decoder (HRD) coded picture buffer count minus one (hrd_cpb_cnt_minus1) wherein the hrd_cpb_cnt_minus1 plus one specifies a number of alternative coded picture buffer (CPB) delivery schedules, and wherein a value of hrd_cpb_cnt_minus1 is constrained to a range from zero to thirty one, inclusive; and
decoding a picture from the one or more sublayers.