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    Nested and Non-Nested SEI Messages In Video Bitstreams
    57.
    发明公开
    Nested and Non-Nested SEI Messages In Video Bitstreams 审中-公开

    公开(公告)号：US20230232030A1

    公开(公告)日：2023-07-20

    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: H04N19/46 ,  H04N19/169

    CPC classification number: H04N19/46 ,  H04N19/188

    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.

    DRAP AND EDRAP IN THE ISOBMFF
    58.
    发明申请
    DRAP AND EDRAP IN THE ISOBMFF 有权

    公开(公告)号：US20250168410A1

    公开(公告)日：2025-05-22

    申请号：US19033229

    申请日：2025-01-21

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang

    IPC: H04N19/70 ,  H04N19/132 ,  H04N19/172

    Abstract: A method of processing media data. The method includes determining, for a dependent random access point (DRAP) sample, a first sequence of samples; and performing a conversion between media data and a media data file based on the determining. The first sequence of samples consists of the following samples in order: 1) a closest preceding stream access point (SAP) sample of type 1, type 2, or type 3; 2) the DRAP sample; and 3) all samples following the DRAP sample in both decoding order and output order in a first track.

    End of sequence indication in coded video
    59.
    发明授权
    End of sequence indication in coded video 有权

    公开(公告)号：US12143642B2

    公开(公告)日：2024-11-12

    申请号：US18079303

    申请日：2022-12-12

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang

    IPC: H04N19/70 ,  H04N19/105 ,  H04N19/109 ,  H04N19/136 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/184 ,  H04N19/30 ,  H04N19/31 ,  H04N19/42 ,  H04N19/503

    Abstract: Methods, systems and devices for using end of sequence indications are described. An example method of video processing includes performing a conversion between a video and a bitstream of the video, wherein the bitstream includes multiple layers in multiple access units, AUs, including one or more pictures according to a format rule, wherein the format rule specifies that, responsive to an end of sequence (EOS) network abstraction layer (NAL) unit for a first layer being present in a first access unit (AU) in the bitstream, a subsequent picture of each of one or more higher layers of the first layer in an AU following the first AU in the bitstream is a coded layer video sequence start (CLVSS) picture.

    METHOD, APPARATUS, AND MEDIUM FOR MEDIA PROCESSING
    60.
    发明公开
    METHOD, APPARATUS, AND MEDIUM FOR MEDIA PROCESSING 审中-公开

    公开(公告)号：US20240292043A1

    公开(公告)日：2024-08-29

    申请号：US18655020

    申请日：2024-05-03

    Applicant: Bytedance Inc.

    Inventor： Ye-Kui Wang

    IPC: H04N21/235 ,  H04L65/60

    CPC classification number: H04N21/2355 ,  H04L65/60

    Abstract: Embodiments of the present disclosure provide a solution for media processing. A method for media processing comprises: performing a conversion between a media file of a media and a media presentation of the media, wherein each main stream representation (MSR) in the media presentation is associated with an external stream representation (ESR) in the media presentation. Compared with the conventional solution, the proposed method can advantageously support the extended dependent random access point (EDRAP)-based technology more efficiently.

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