Patent ID: 11863796
Assignee: BYTEDANCE INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A non-transitory computer-readable recording medium storing a bitstream of a video which is generated by a method performed by a video processing apparatus, wherein the method comprises:
generating, for the video comprising a current picture comprising a current subpicture comprising a current slice, the bitstream of the video,
wherein the bitstream conforms to a first format rule that disallows an active entry in a reference picture list of the current slice from including a first picture that precedes in a decoding order a second picture that includes a step-wise temporal sublayer access subpicture when:
(a) the first picture has a same temporal identifier and a same layer identifier of a network abstraction layer (NAL) unit as that of the current subpicture, and
(b) the current subpicture follows in the decoding order the step-wise temporal sublayer access subpicture, and
(c) the current subpicture and the step-wise temporal sublayer access subpicture have the same temporal identifier, the same layer identifier, and a same subpicture index.