US 12,219,162 B2
Method for signaling picture header in coded video stream
Byeongdoo Choi, Palo Alto, CA (US); Shan Liu, Palo Alto, CA (US); and Stephan Wenger, Palo Alto, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on May 11, 2023, as Appl. No. 18/196,073.
Application 18/196,073 is a continuation of application No. 17/096,168, filed on Nov. 12, 2020, granted, now 11,706,428.
Claims priority of provisional application 63/005,640, filed on Apr. 6, 2020.
Prior Publication US 2023/0283793 A1, Sep. 7, 2023
Int. Cl. H04N 7/12 (2006.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/44 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/44 (2014.11) [H04N 19/172 (2014.11); H04N 19/188 (2014.11); H04N 19/46 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method of encoding a video bitstream using at least one processor, the method comprising:
determining whether a video coding layer (VCL) network abstraction layer (NAL) unit is to be a first VCL NAL unit of a picture unit (PU) containing the VCL NAL unit;
based on determining that the VCL NAL unit is to be the first VCL NAL unit of the PU, determining whether the VCL NAL unit is to be a first VCL NAL unit of an access unit (AU) containing the PU; and
based on determining that the VCL NAL unit is to be the first VCL NAL unit of the AU, encoding the AU based on the VCL NAL unit,
wherein based on a value of all_pic_coding_info_present_in_ph_flag indicating that all picture coding information is to be present in a picture header, a plurality of flags corresponding to the picture coding information are determined to not be signaled in a picture parameter set corresponding to the picture header, and
wherein the plurality of flags comprise an rpl_info_in_ph_flag, an_wp_info_in_ph_flag, and at least one of a dbf_info_in_ph_flag, an sao_info_in_ph_flag, an alf_info_in_ph_flag, and a qp_delta_info_in_ph_flag.