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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.
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公开(公告)号:US12170766B2
公开(公告)日:2024-12-17
申请号:US17958531
申请日:2022-10-03
Inventor: Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/117 , H04N19/124 , H04N19/186 , H04N19/196 , H04N19/70 , H04N19/86 , H04N19/157
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video and a bitstream of the video according to a format rule. The format rule specifies that a first field at a sequence level or a picture level or a slice level controls a value of a second field in an adaptation parameter set.
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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.
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公开(公告)号:US12137252B2
公开(公告)日:2024-11-05
申请号:US18450647
申请日:2023-08-16
Inventor: Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/46 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/70
Abstract: Systems, methods, and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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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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公开(公告)号:US20240129536A1
公开(公告)日:2024-04-18
申请号:US18396893
申请日:2023-12-27
Inventor: Ye-Kui Wang , Yang Wang , Li Zhang
IPC: H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
CPC classification number: H04N19/70 , H04N19/103 , H04N19/136 , H04N19/172 , H04N19/184
Abstract: A mechanism for processing video data is disclosed. A value of an extended dependent random-access point (EDRAP) leading pictures decodable flag (edrap_leading_pictures_decodable_flag) syntax element is determined. A conversion can then be performed between a visual media data and a bitstream based on the edrap_leading_pictures_decodable_flag syntax element. The value of the edrap_leading_pictures_decodable_flag indicates whether ordering constraints are imposed on the EDRAP picture.
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公开(公告)号:US11924474B2
公开(公告)日:2024-03-05
申请号:US17973810
申请日:2022-10-26
Applicant: Bytedance Inc.
Inventor: Li Zhang , Ye-Kui Wang , Kai Zhang
IPC: H04N19/70 , H04N19/105 , H04N19/174 , H04N19/46
CPC classification number: H04N19/70 , H04N19/105 , H04N19/174 , H04N19/46
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One 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 format rule. The format rule specifies that a first syntax element that indicates whether motion vector difference for a particular reference picture list (RPL) is indicated is conditionally included in the bitstream based on (i) whether a second syntax element indicating whether an RPL information is included in a picture header and/or (ii) a number of reference pictures in the particular RPL in case that the RPL information is present in the picture header.
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公开(公告)号:US20230396809A1
公开(公告)日:2023-12-07
申请号:US18450647
申请日:2023-08-16
Inventor: Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
CPC classification number: H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
Abstract: Systems, methods, and apparatus for video processing are described. The video processing may include video encoding, video decoding or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号:US11792435B2
公开(公告)日:2023-10-17
申请号:US17962141
申请日:2022-10-07
Inventor: Zhipin Deng , Li Zhang , Ye-Kui Wang , Kai Zhang , Jizheng Xu
IPC: H04N19/46 , H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174
CPC classification number: H04N19/70 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/46
Abstract: Systems, methods and apparatus for video processing are described. The video processing may include video encoding, video decoding, or video transcoding. One example method of video processing includes performing a conversion between a video including one or more video regions and a bitstream of the video according to a format rule. The format rule specifies that a variable X indicates whether B slice is allowed or used in a video region. The format rule further specifies that the variable X is based on values of a reference picture list information present flag and/or a field indicating a number of entries in a reference picture list syntax structure.
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公开(公告)号:US20230239511A1
公开(公告)日:2023-07-27
申请号:US18192098
申请日:2023-03-29
Inventor: Ye-Kui Wang , Li Zhang , Kai Zhang , Zhipin Deng
IPC: H04N19/70 , H04N19/187 , H04N19/136
CPC classification number: H04N19/70 , H04N19/187 , H04N19/136
Abstract: Systems, methods and apparatus for encoding, decoding or transcoding digital video are described. One example method of processing video data includes performing a conversion between a video and a bitstream of the video according to a format rule, wherein the format rule specifies that a supplemental enhancement information field included in the bitstream indicates whether the bitstream comprises one or more video layers that represent auxiliary information.
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