US 11,778,200 B2
Constraints on reference picture information
Ye-kui Wang, San Diego, CA (US); and Li Zhang, San Diego, CA (US)
Assigned to BYTEDANCE INC., Los Angeles, CA (US)
Filed by Bytedance Inc., Los Angeles, CA (US)
Filed on Nov. 17, 2022, as Appl. No. 17/989,409.
Application 17/989,409 is a continuation of application No. PCT/US2021/033340, filed on May 20, 2021.
Claims priority of provisional application 63/028,150, filed on May 21, 2020.
Prior Publication US 2023/0084006 A1, Mar. 16, 2023
Int. Cl. H04N 19/157 (2014.01); H04N 19/103 (2014.01); H04N 19/136 (2014.01); H04N 19/174 (2014.01); H04N 19/70 (2014.01); H04N 19/105 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/157 (2014.11) [H04N 19/103 (2014.11); H04N 19/105 (2014.11); H04N 19/136 (2014.11); H04N 19/172 (2014.11); H04N 19/174 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of processing video data, comprising:
performing a conversion between a video comprising a video picture comprising a slice and a bitstream of the video according to a first rule,
wherein the first rule specifies that a default value of a syntax element specifying a number of entries in a reference picture list syntax structure associated with a reference picture list (RPL) index is equal to 0 due to a condition being satisfied, and
wherein the condition is satisfied in case (1) the video picture is an instantaneous decoding refresh picture, (2) a first syntax flag specifies that RPL syntax elements are not present in a slice header of the slice, and (3) a second syntax flag specifies that RPL information is not present in a picture header of the video picture.