公开(公告)号：US11876995B2

公开(公告)日：2024-01-16

申请号：US17839860

申请日：2022-06-14

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang

IPC: H04N19/46 ,  H04N19/159 ,  H04N19/174 ,  H04N19/169 ,  H04N19/172 ,  H04N19/184 ,  H04N19/187 ,  H04N19/70 ,  H04N19/105

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/187 ,  H04N19/188 ,  H04N19/70

Abstract: A method of video processing includes performing a conversion between a video comprising one or more scalable video layers and a bitstream of the video. The video comprises one or more video pictures comprising one or more slices. The bitstream conforms to a format rule. The format rule specifies that a value of a field indicative of a slice type of a slice is set to indicate a type of intra slice in case that a corresponding network abstraction layer unit type is in a predetermined range and that a corresponding video layer flag indicates that a video layer containing the slice does not use inter-layer prediction.

公开(公告)号：US11863796B2

公开(公告)日：2024-01-02

申请号：US17949058

申请日：2022-09-20

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang

IPC: H04N19/70 ,  H04N19/174 ,  H04N19/169 ,  H04N19/105 ,  H04N19/46 ,  H04N19/103 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/176 ,  H04N19/88

CPC classification number: H04N19/70 ,  H04N19/103 ,  H04N19/105 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/188 ,  H04N19/46 ,  H04N19/88

Abstract: Methods and apparatus for processing of video are described. The processing may include video encoding, decoding or transcoding. One example video processing method includes performing a conversion between a video including a current picture including a current subpicture including a current slice and a bitstream of the video. The bitstream conforms to a 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 in response to conditions associated with at least the first picture and the current subpicture.

公开(公告)号：US11825124B2

公开(公告)日：2023-11-21

申请号：US17990267

申请日：2022-11-18

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Ye-kui Wang ,  Zhipin Deng ,  Kai Zhang ,  Li Zhang

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30

CPC classification number: H04N19/70 ,  H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/184 ,  H04N19/186 ,  H04N19/30

Abstract: Video processing, including video coding, video decoding and video transcoding, is described. One example method includes performing a conversion between a video comprising a video picture and a bitstream of a video according to a rule, where the rule specifies that syntax elements indicate a first width and a first height of a scaling window for the video picture, and where the rule specifies that a range of permissible values for the syntax elements include values greater than or equal to two times a second width of the video picture and two times a second height of the video picture.

公开(公告)号：US11825123B2

公开(公告)日：2023-11-21

申请号：US17888227

申请日：2022-08-15

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Kai Zhang ,  Li Zhang ,  Yang Wang ,  Ye-kui Wang ,  Zhipin Deng ,  Jizheng Xu ,  Hongbin Liu

IPC: H04N19/70 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46 ,  H04N19/117 ,  H04N19/172 ,  H04N19/82 ,  H04N19/119 ,  H04N19/635

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/119 ,  H04N19/172 ,  H04N19/174 ,  H04N19/186 ,  H04N19/46 ,  H04N19/635 ,  H04N19/82

Abstract: A method includes performing a conversion between a video comprising a video unit and a bitstream of the video, wherein the bitstream conforms to a format rule, and wherein the format rule specifies that a first syntax element indicating whether an in-loop filtering operation is performed across tile boundaries is selectively included in the bitstream based on whether or how the video unit is partitioned into tiles.

公开(公告)号：US11812063B2

公开(公告)日：2023-11-07

申请号：US17957139

申请日：2022-09-30

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang ,  Li Zhang ,  Kai Zhang

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/174 ,  H04N19/169

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/174 ,  H04N19/188

Abstract: A video processing method includes performing a conversion between a video comprising one or more pictures and a bitstream of the video according to a format rule. The format rule specifies that, in response to satisfying one or more conditions, a syntax element indicating whether a first syntax structure providing a profile, a tier and a level information and a second syntax structure providing decoded picture buffer information are present in a sequence parameter set is set to be equal to 1 to indicate that the first syntax structure and the second syntax structure are present in the sequence parameter set.

公开(公告)号：US20230246834A1

公开(公告)日：2023-08-03

申请号：US18191972

申请日：2023-03-29

Applicant: Bytedance Inc.

Inventor： Jizheng Xu ,  Ye-kui Wang ,  Li Zhang ,  Kai Zhang

IPC: H04L9/30 ,  H04N21/2347 ,  H04L9/06

CPC classification number: H04L9/30 ,  H04N21/2347 ,  H04L9/0643

Abstract: Methods, systems, and devices for media processing are described. One example method of processing digital media includes performing a conversion between a media segment and a bitstream of the media segment, the conversion conforming to a format rule and an encryption rule, and the format rule specifying that an indication of an integrity of a portion of the media segment is signaled in the bitstream. In an example, the media segment is a video segment, an audio segment, or an image.

公开(公告)号：US20230128511A1

公开(公告)日：2023-04-27

申请号：US17994748

申请日：2022-11-28

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang ,  Li Zhang ,  Jizheng Xu ,  Kai Zhang

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/186 ,  H04N19/172

Abstract: Embodiments for video encoding and video decoding are described. One example method includes performing a conversion between a video and a bitstream of the video according to a rule, wherein the rule specifies that only one of two conditions is true when a number of subpictures minus 1 indicated by a first syntax element in a sequence parameter set is greater than zero and when a current subpicture with a subpicture index subpicIdx of a first video picture of the video has a second syntax element in the sequence parameter set indicates that a subpicture with the subpicture index subpicIdx of each video picture of the video in a coded layer video sequence is treated as a video picture in a decoding process that excludes an in-loop filtering operation.

公开(公告)号：US20230112461A1

公开(公告)日：2023-04-13

申请号：US17989339

申请日：2022-11-17

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang ,  Li Zhang

IPC: H04N19/105 ,  H04N19/174 ,  H04N19/172 ,  H04N19/70

Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a current picture of a video and a bitstream of the video according to a rule. The rule specifies that responsive to a picture being referred to by an inter-layer reference picture (ILRP) entry in a reference picture list of a slice of the current picture, the picture is allowed to have a gradual decoding refresh (GDR) type and a syntax element specifying a recovery point of the picture in an output order is 0.

公开(公告)号：US20230111484A1

公开(公告)日：2023-04-13

申请号：US17990273

申请日：2022-11-18

Applicant: Bytedance Inc.

Inventor： Ye-kui Wang ,  Li Zhang

IPC: H04N19/70 ,  H04N19/46 ,  H04N19/169 ,  H04N19/172

Abstract: Examples of video encoding methods and apparatus and video decoding methods and apparatus are described. An example method of video processing includes performing a conversion between a video and a bitstream of the video according to a rule. At least one of the one or more parameter sets of the bitstream includes a general syntax structure including timing and hypothetical reference decoder (HRD) parameters. The rule specifies that a first syntax flag is not included in the general syntax structure in response to (1) a second syntax flag specifying that network abstraction layer (NAL) HRD parameters are not present in the general syntax structure, and (2) a third syntax flag specifying that video coding layer (VCL) HRD parameters are not present in the general syntax structure, where the first syntax flag specifies that same picture-level timing information applies to all output layer sets in the bitstream.

公开(公告)号：US20230111133A1

公开(公告)日：2023-04-13

申请号：US17896532

申请日：2022-08-26

Applicant: Beijing Bytedance Network Technology Co., Ltd. ,  Bytedance Inc.

Inventor： Jizheng Xu ,  Li Zhang ,  Ye-kui Wang ,  Kai Zhang ,  Zhipin Deng

IPC: H04N19/70 ,  H04N19/132 ,  H04N19/18 ,  H04N19/174

Abstract: Several techniques for video encoding and video decoding are described. One example method includes performing a conversion between a video including a video unit and a bitstream of the video according to a rule, wherein the rule specifies whether a transform skip residual coding operation is enabled for the video unit, and wherein one or more syntax elements are included in the bitstream at a video segment level indicative of whether the transform skip residual coding operation is enabled for the video unit.