US 11,856,233 B2
Systems and methods for signaling buffer output information in video coding
Sachin G. Deshpande, Vancouver, WA (US)
Assigned to SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed by SHARP KABUSHIKI KAISHA, Sakai (JP)
Filed on Feb. 17, 2022, as Appl. No. 17/674,446.
Claims priority of provisional application 63/151,028, filed on Feb. 18, 2021.
Prior Publication US 2022/0279212 A1, Sep. 1, 2022
Int. Cl. H04N 19/70 (2014.01); H04N 19/172 (2014.01); H04N 19/44 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/172 (2014.11); H04N 19/44 (2014.11)] 4 Claims
OG exemplary drawing
 
1. A method of decoding video data, the method comprising:
receiving a first decoding unit information message corresponding to a first decoding unit of a current access unit;
determining whether or not a decoding unit information (DUI) decoded picture buffer (DPB) output decoding unit (DU) delay syntax element used to compute a decoded picture buffer output time of the current access unit is present in the first decoding unit information message; and
based on the DUI DPB output DU delay syntax element not being present in the first decoding unit information message and decoding unit level decoded picture buffer output delay parameters being present in the first decoding unit information message and not in picture timing information messages, inferring a value of the DUI DPB output DU delay syntax element to be equal to a value of a corresponding instance of the DUI DPB output DU delay syntax element present in a second decoding unit information message, wherein the second decoding unit information message corresponds to a second decoding unit of the current access unit.