US 12,425,626 B2
Output of prior pictures for pictures starting a new coded video sequence 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 Nov. 3, 2021, as Appl. No. 17/518,275.
Application 17/518,275 is a continuation of application No. PCT/US2020/030943, filed on May 1, 2020.
Claims priority of provisional application 62/843,991, filed on May 6, 2019.
Prior Publication US 2022/0060733 A1, Feb. 24, 2022
Int. Cl. H04N 19/46 (2014.01); H04N 19/159 (2014.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/46 (2014.11) [H04N 19/159 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/188 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of decoding implemented by a video decoder, comprising:
receiving a coded video bitstream, wherein the coded video bitstream contains a clean random access (CRA) picture and a first flag having a value, wherein the first flag is included in a slice header, and wherein the value of the first flag is the same for all slices that have the first flag present in their slice headers;
in response to receiving the coded video bitstream containing the CRA picture:
setting a value of a second flag equal to the value of the first flag;
emptying any previously-decoded pictures from a decoded picture buffer (DPB) when the value of the second flag is equal to one; and
decoding a current picture after the DPB has been emptied.