Patent ID: 11943459
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. An encoding device, comprising:
a one or more processors and a non-transitory computer-readable medium connected to the one or more processors, wherein the non-transitory computer-readable medium carries a program code which, when executed by the one or more processors, causes the encoding device to:
determine a maximum number of temporal sublayers in a video bitstream is greater than one;
determine presence of a decoded picture buffer (DPB) parameters syntax structure in a sequence parameter set (SPS), wherein the SPS is encoded in a video bitstream and contains syntax elements that apply to a video sequence;
encode a value of a first syntax element into the SPS based on the determining of the presence of the DPB parameters syntax structure in the SPS, wherein the value of the first syntax element is used to specify whether the DPB parameters syntax structure is present in the SPS;
determine presence of a DPB syntax element in the DPB parameters syntax structure, when determining that the DPB parameters syntax structure is present in the SPS and the maximum number of the temporal sublayers in the video bitstream is greater than one, wherein the DPB syntax element is applied to a temporal sublayer in the video sequence; and
encode a value of a second syntax element into the SPS based on the determining of the presence of the DPB syntax element in the DPB parameters syntax structure, wherein the value of the second syntax element is used to specify the presence of the DPB syntax element in the DPB parameters syntax structure.