US 12,225,237 B2
Conditionally parsed extension syntax for HEVC extension processing
Yue Yu, San Diego, CA (US); and Limin Wang, San Diego, CA (US)
Assigned to ARRIS Enterprises LLC, Suwanee, GA (US)
Filed by ARRIS Enterprises LLC, Suwanee, GA (US)
Filed on Aug. 15, 2023, as Appl. No. 18/234,306.
Application 18/234,306 is a continuation of application No. 17/743,168, filed on May 12, 2022, abandoned.
Application 17/743,168 is a continuation of application No. 17/119,787, filed on Dec. 11, 2020, granted, now 11,363,301, issued on Jun. 14, 2022.
Application 17/119,787 is a continuation of application No. 16/411,092, filed on May 13, 2019, granted, now 11,102,514, issued on Aug. 24, 2021.
Application 16/411,092 is a continuation of application No. 14/585,485, filed on Dec. 30, 2014, granted, now 10,341,685, issued on Jul. 2, 2019.
Claims priority of provisional application 61/923,334, filed on Jan. 3, 2014.
Prior Publication US 2024/0048767 A1, Feb. 8, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/70 (2014.01); H04N 19/513 (2014.01); H04N 19/597 (2014.01); H04N 19/122 (2014.01); H04N 19/124 (2014.01); H04N 19/30 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/513 (2014.11); H04N 19/597 (2014.11); H04N 19/122 (2014.11); H04N 19/124 (2014.11); H04N 19/30 (2014.11)] 2 Claims
OG exemplary drawing
 
1. A method of decoding a plurality of pictures, each picture processed at least in part according to a picture parameter set, the method comprising:
receiving a bitstream comprising the plurality of pictures and a picture parameter set and at least one transform unit and at least one prediction unit;
parsing the picture parameter set to determine for a picture in the plurality of pictures whether a pps_extension_present_flag signaling flag specifies presence of syntax structure pps_extension_Xbits at a picture level for the picture,
wherein the pps_extension_present_flag and pps_extension_Xbits signaling flags, when present, are adaptable per picture in the plurality of pictures, and
wherein the pps_extension_Xbits signaling flag is represented in the picture parameter set by multiple bits, where X=the number of said bits;
parsing the pps_extension_Xbits syntax structure to determine if any pps_extension_data_flag syntax structures are present in the picture parameter set;
wherein pps_extension_Xbits shall be equal to 0 for bitstreams conforming to High Efficiency Video Coding (HEVC) profiles, and
wherein pps_extension_Xbits not equal to 0 causes the pps_extension_data_flag syntax structures in a picture parameter set NAL unit to be ignored during decoding.