US 11,689,741 B2
Method for parameter set reference constraints in coded 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 May 13, 2022, as Appl. No. 17/743,678.
Application 17/743,678 is a continuation of application No. 17/063,085, filed on Oct. 5, 2020, granted, now 11,356,698.
Claims priority of provisional application 62/954,883, filed on Dec. 30, 2019.
Prior Publication US 2022/0279206 A1, Sep. 1, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/59 (2014.01); H04N 19/105 (2014.01); H04N 19/174 (2014.01)
CPC H04N 19/59 (2014.11) [H04N 19/105 (2014.11); H04N 19/174 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method performed by at least one processor, the method comprising:
obtaining video data comprising data of a plurality of pictures;
determining, among the video data, whether references are associated with any of a first access unit (AU) and a second AU; and
outputting a first quantity of the references set to the first AU and a second quantity of the references set to the second AU based on at least one picture order count (POC) signal value,
wherein the video data comprises video parameter set (VPS) data identifying a plurality of spatial layers of the video data which are shared across layers of an adaptive parameter set (APS), a picture parameter set (PPS), and a sequence parameter set (SPS),
wherein a same value space of values of adaptation_paramater_set_id and aps_params_type of the APS is shared across the layers, and
wherein a same value space of sps_video_parameter_set_id is shared in the SPS.