US 11,706,431 B2
Method for output layer set mode in multilayered video stream
Byeongdoo Choi, Palo Alto, CA (US); Shan Liu, San Jose, CA (US); and Stephan Wenger, Hillsborough, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Dec. 7, 2021, as Appl. No. 17/544,164.
Application 17/544,164 is a continuation of application No. 17/000,018, filed on Aug. 21, 2020, granted, now 11,228,776.
Claims priority of provisional application 63/001,045, filed on Mar. 27, 2020.
Prior Publication US 2022/0094959 A1, Mar. 24, 2022
Int. Cl. H04N 19/13 (2014.01); H04N 19/44 (2014.01); H04N 19/187 (2014.01); H04N 19/30 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/187 (2014.11); H04N 19/30 (2014.11)] 19 Claims
OG exemplary drawing
 
1. A method of decoding, the method comprising:
receiving a bitstream comprising compressed video/image data, wherein the bitstream has multiple layers;
parsing or deriving, from the bitstream, an output layer set mode indicator in a video parameter set (VPS);
identifying output layer set signaling based on the output layer set mode indicator;
identifying one or more picture output layers based on the identified output layer set signaling; and
decoding the identified one or more picture output layers, the decoding comprising:
setting, based on each layer being an output layer set, a picture output flag of the VPS equal to a picture output flag signaled in a picture header, regardless of the value of the output layer set mode indicator, or
setting the picture output flag of the VPS equal to 0 based on a sequence parameter set (SPS) identifier of the VPS being greater than 0, the each layer is an output layer set flag being equal to 0, and the output layer set mode indicator being equal to 2.