US 12,268,570 B2
Reference picture management in video coding
FNU Hendry, San Diego, CA (US); and 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. 28, 2023, as Appl. No. 18/521,714.
Application 18/521,714 is a continuation of application No. 17/176,595, filed on Feb. 16, 2021, granted, now 11,991,349.
Application 17/176,595 is a continuation of application No. PCT/US2019/046934, filed on Aug. 16, 2019.
Claims priority of provisional application 62/719,360, filed on Aug. 17, 2018.
Prior Publication US 2024/0130835 A1, Apr. 25, 2024
Int. Cl. H04N 19/105 (2014.01); A61C 7/00 (2006.01); A61C 7/08 (2006.01); B29C 51/30 (2006.01); B29C 51/46 (2006.01); B29L 31/00 (2006.01)
CPC A61C 7/08 (2013.01) [A61C 7/002 (2013.01); B29C 51/30 (2013.01); B29C 51/46 (2013.01); B29L 2031/753 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method of decoding a coded video bitstream implemented by a video decoder for use in video decoding based on the Versatile Video Coding (VVC) standard, comprising:
obtaining a reference picture list structure for a current slice from the coded video bitstream, wherein the reference picture list structure contains a number of entries;
obtaining a default number of active entries in a reference picture list for the current slice;
constructing the reference picture list for the current slice, wherein the reference picture list contains a number of active entries and a number of inactive entries;
setting the number of active entries in the reference picture list equal to the number of entries in the reference picture list structure when the default number of active entries in the reference picture list is greater than the number of entries in the reference picture list structure;
obtaining, based on at least one active entry of the reference picture list, at least one reconstructed block of the current slice; and
obtaining an override flag from the coded video bitstream, wherein the setting the number of active entries in the reference picture list equal to the number of entries in the reference picture list structure is performed on condition that a value of the override flag is false,
wherein an order of entries in the reference picture list structure is the same as an order of corresponding reference pictures in the reference picture list,
wherein the at least one active entry of the reference picture list is used for inter prediction of the at least one reconstructed block,
wherein the inactive entries are not used for inter prediction of a current picture, and
wherein the reference picture list structure, ref_pic_list_struct (listIdx, rplsIdx), includes two separate indexes, listIdx and rplsIdx.