US 12,284,391 B2
Signaling of subpicture level and buffering information
Ye-kui Wang, San Diego, CA (US)
Assigned to BYTEDANCE INC., Los Angeles, CA (US)
Filed by Bytedance Inc., Los Angeles, CA (US)
Filed on Nov. 22, 2023, as Appl. No. 18/517,283.
Application 18/517,283 is a continuation of application No. 18/077,886, filed on Dec. 8, 2022, granted, now 11,871,012.
Application 18/077,886 is a continuation of application No. PCT/US2021/036491, filed on Jun. 8, 2021.
Claims priority of provisional application 63/036,808, filed on Jun. 9, 2020.
Prior Publication US 2024/0098282 A1, Mar. 21, 2024
Int. Cl. H04N 19/70 (2014.01); H04N 19/136 (2014.01); H04N 19/169 (2014.01); H04N 19/184 (2014.01); H04N 19/30 (2014.01); H04N 19/433 (2014.01); H04N 19/46 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/136 (2014.11); H04N 19/184 (2014.11); H04N 19/188 (2014.11); H04N 19/30 (2014.11); H04N 19/433 (2014.11); H04N 19/46 (2014.11)] 19 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
performing a conversion between a video and a bitstream of the video,
wherein the bitstream comprises one or more output layer sets comprising one or more video layers according to a first rule,
wherein the first rule specifies that, when a subpicture level information (SLI) supplemental enhancement information (SEI) message and a buffering period (BP) SEI message that apply to a particular output layer set are present within an access unit, the SLI SEI message precedes the BP SEI message in a decoding order,
wherein the first rule specifies that a first syntax field indicating information of sublayer representation for which an initial coded picture buffer (CPB) removal delay related syntax elements are present is omitted in response to a particular value of a second syntax field indicative of a maximum number of temporal sublayers for which an initial CPB removal delay is indicated in the buffering period SEI message,
wherein the particular value is 0, and
wherein the second syntax field with the particular value specifies that the maximum number of temporal sublayers is 1.