US 11,949,853 B2
Data decoding method and apparatus, and data coding method and apparatus
Yiming Li, Shenzhen (CN); Xiaozhong Xu, Shenzhen (CN); Ye Hu, Shenzhen (CN); Shan Liu, Shenzhen (CN); and Zhenzhong Chen, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTD, Shenzhen (CN)
Filed by TENCENT TECHNOLOGY (SHENZHEN) COMPANY LTD, Guangdong (CN)
Filed on Sep. 9, 2021, as Appl. No. 17/470,636.
Application 17/470,636 is a continuation of application No. PCT/CN2020/111246, filed on Aug. 26, 2020.
Claims priority of application No. 201910792449.9 (CN), filed on Aug. 26, 2019.
Prior Publication US 2021/0409688 A1, Dec. 30, 2021
Int. Cl. H04N 19/107 (2014.01); H04N 19/159 (2014.01); H04N 19/176 (2014.01); H04N 19/46 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/107 (2014.11) [H04N 19/159 (2014.11); H04N 19/176 (2014.11); H04N 19/46 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A data decoding method, performed by a computer device, the data decoding method comprising:
obtaining coded data corresponding to a current to-be-decoded unit;
obtaining a syntax indicating a coding mode restriction type corresponding to the current to-be-decoded unit by decoding the coded data, the coding mode restriction type indicating which coding mode of the current to-be-decoded unit that decoding of the current to-be-decoded unit is restricted to;
determining a candidate coding mode set corresponding to the current to-be-decoded unit according to the coding mode restriction type, the candidate coding mode set comprising a block copy intra-frame coding mode;
selecting a target coding mode from the candidate coding mode set; and
decoding the current to-be-decoded unit according to the target coding mode, thereby obtaining corresponding decoded data.