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    Syntax for signaling video subpictures
    51.
    发明授权
    Syntax for signaling video subpictures 有权

    公开(公告)号：US11812062B2

    公开(公告)日：2023-11-07

    申请号：US17850670

    申请日：2022-06-27

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang

    IPC: H04N19/70 ,  H04N19/172 ,  H04N19/184 ,  H04N19/46 ,  H04N19/174 ,  H04N19/169

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

    Abstract: Methods, devices and systems for signaling the use of subpictures in coded video pictures are described. One example method of video processing includes performing a conversion between a video and a bitstream of a video, wherein the bitstream conforms to a format rule, wherein the format rule specifies that a first syntax element signaled in a sequence parameter set (SPS) of the bitstream is indicative of a length of identifiers of subpictures in the SPS, and wherein the signaling of the first syntax element is independent of a value of a second syntax element that is indicative of explicit signaling of the identifiers of the subpictures in the SPS or a picture parameter set (PPS).

    Signaling of general constrain information
    56.
    发明授权
    Signaling of general constrain information 有权

    公开(公告)号：US12244868B2

    公开(公告)日：2025-03-04

    申请号：US18511565

    申请日：2023-11-16

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang ,  Li Zhang

    IPC: H04N19/70 ,  H04N19/172 ,  H04N19/30 ,  H04N19/85

    Abstract: Methods, systems, and devices for signaling of general constraint information are described. An example method of video processing includes performing a conversion between a video including one or more pictures and a bitstream of the video according to a rule. The rule specifies that a syntax structure in a profile-tier-level syntax structure is after a syntax element. The syntax structure includes information related to general constraint information (GCI) for the bitstream. The syntax element indicates a level to which an output layer set associated with the profile-tier-level syntax structure conforms.

    SIGNALING OF PICTURE-IN-PICTURE IN MEDIA FILES
    57.
    发明申请
    SIGNALING OF PICTURE-IN-PICTURE IN MEDIA FILES 有权

    公开(公告)号：US20250071332A1

    公开(公告)日：2025-02-27

    申请号：US18942138

    申请日：2024-11-08

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang

    IPC: H04N19/70 ,  H04N19/136 ,  H04N19/169

    Abstract: A mechanism for processing video data is disclosed. A type for a value taken by a region identifier (ID) in a region identifier (ID) type field (region_id_type) is determined. The type for the value taken by the region ID is coded in the region ID type field using four or less bits. A conversion between the visual media data and a media data file is performed based on the type for the value taken by the region ID in the region ID type field.

    Nested and non-nested SEI messages in video bitstreams
    58.
    发明授权
    Nested and non-nested SEI messages in video bitstreams 有权

    公开(公告)号：US12184899B2

    公开(公告)日：2024-12-31

    申请号：US18190612

    申请日：2023-03-27

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

    Inventor： Ye-Kui Wang ,  Zhipin Deng

    IPC: H04N19/70 ,  H04N19/169 ,  H04N19/184 ,  H04N19/46 ,  C09K13/06 ,  C23F1/26 ,  C23F1/28 ,  H01L21/3213

    Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of video processing includes performing a conversion between a video and a bitstream of the video including multiple layers, wherein the bitstream includes a plurality of supplemental enhancement information, SEI, messages associated with an access unit, AU, or a decoding unit, DU, of a particular output layer set, OLS, or a particular layer, wherein the plurality of SEI messages, including a message type different from scalable nesting type, is based on a format rule, and wherein the format rule specifies that each of the plurality of SEI messages has a same SEI payload content due to the plurality of SEI messages being associated with the AU or the DU of the particular OLS or the particular layer.

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