US 12,075,078 B2
Signaling of DPB parameters for multi-layer video bitstreams
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. 22, 2022, as Appl. No. 17/700,786.
Application 17/700,786 is a continuation of application No. PCT/US2020/051278, filed on Sep. 17, 2020.
Claims priority of provisional application 62/905,139, filed on Sep. 24, 2019.
Prior Publication US 2022/0217330 A1, Jul. 7, 2022
Int. Cl. H04N 19/46 (2014.01); H04N 19/105 (2014.01); H04N 19/172 (2014.01); H04N 19/187 (2014.01); H04N 19/423 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/46 (2014.11) [H04N 19/105 (2014.11); H04N 19/172 (2014.11); H04N 19/187 (2014.11); H04N 19/423 (2014.11); H04N 19/70 (2014.11)] 27 Claims
OG exemplary drawing
 
1. A method of decoding implemented by a video decoder, comprising:
receiving a video bitstream including a plurality of layers, a video parameter set (VPS), and a sequence parameter set (SPS), wherein the VPS specifies a plurality of output layer sets (OLSs), wherein each of the plurality of OLSs includes one or more layers from the plurality of layers, wherein the SPS includes a set of decoded picture buffer (DPB) parameters for a particular layer only once when the particular layer is included in more than one of the plurality of OLSs, and wherein a number of sets of the DPB parameters in the SPS is equal to a number of the one or more layers in an OLS from the plurality of OLSs having a greatest number of layers; and
decoding a picture from one of the plurality of layers to obtain a decoded picture.