公开(公告)号：US20250106400A1

公开(公告)日：2025-03-27

申请号：US18942064

申请日：2024-11-08

Applicant: Bytedance Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/132

Abstract: A mechanism for processing visual media data is disclosed. An extended dependent random access point (EDRAP) sample is determined. The EDRAP sample is a sample for which all subsequent samples in both decoding and output order can be correctly decoded provided that required preceding streaming access point (SAP) or EDRAP samples are available for referencing when decoding the EDRAP sample and the subsequent samples. A conversion is performed between a visual media data and a media data file based on the EDRAP sample.

公开(公告)号：US20240334006A1

公开(公告)日：2024-10-03

申请号：US18737709

申请日：2024-06-07

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

Inventor： Yongyi YU ,  Jianping Chen ,  Ye-Kui Wang ,  Chuanchuan Du

IPC: H04N21/438 ,  H04N21/2187 ,  H04N21/435 ,  H04N21/437 ,  H04N21/858

CPC classification number: H04N21/4384 ,  H04N21/2187 ,  H04N21/435 ,  H04N21/437 ,  H04N21/8586

Abstract: Embodiments of the present disclosure provide a solution for media data transmission. A method for media data transmission is proposed. The method comprises: transmitting, at a first device and to a second device, a request for at least one media data file, the request comprising a first indication indicating that a plurality of media data files are to be transmitted in a single message; and receiving the plurality of media data files in the single message from the second device. Thereby, the initialization delay can be advantageously reduced.

公开(公告)号：US12081801B2

公开(公告)日：2024-09-03

申请号：US17942432

申请日：2022-09-12

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

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

IPC: H04N19/136 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/157 ,  H04N19/169 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/60 ,  H04N19/70 ,  H04N19/85

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/12 ,  H04N19/124 ,  H04N19/132 ,  H04N19/136 ,  H04N19/157 ,  H04N19/17 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/188 ,  H04N19/1887 ,  H04N19/30 ,  H04N19/60 ,  H04N19/85

Abstract: Methods, systems, and apparatus for video processing are described. One example video processing method includes performing a conversion between a video comprising a luma block and a bitstream of the video according to a rule. The rule specifies that whether a slice header (SH) includes a first syntax element is based on a second syntax element. The first syntax element indicates whether use of a delta quantization parameter (QP) is enabled for one or more coding units (CUs) of a specific slice of the luma block.

公开(公告)号：US20240121388A1

公开(公告)日：2024-04-11

申请号：US18521244

申请日：2023-11-28

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

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

IPC: H04N19/117 ,  H04N19/124 ,  H04N19/186 ,  H04N19/196 ,  H04N19/70

CPC classification number: H04N19/117 ,  H04N19/124 ,  H04N19/186 ,  H04N19/196 ,  H04N19/70 ,  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.

公开(公告)号：US11956454B2

公开(公告)日：2024-04-09

申请号：US18083908

申请日：2022-12-19

Applicant: Bytedance Inc.

Inventor： Ye-Kui Wang

IPC: H04N19/423 ,  H04N19/169 ,  H04N19/70

CPC classification number: H04N19/423 ,  H04N19/188 ,  H04N19/70

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, wherein the bitstream includes one or more pictures including one or more subpictures according to a rule, and wherein the rule specifies that, responsive to a condition, a rewriting operation is performed on referenced one or more sequence parameter sets during a subpicture sub-bitstream extraction process by which a target output sub-bitstream is extracted from the bitstream.

公开(公告)号：US11949900B2

公开(公告)日：2024-04-02

申请号：US18190571

申请日：2023-03-27

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

Inventor： Ye-Kui Wang ,  Zhipin Deng

IPC: H04N19/31 ,  C09K13/06 ,  C23F1/26 ,  C23F1/28 ,  H01L21/3213 ,  H04N19/169 ,  H04N19/46

CPC classification number: H04N19/46 ,  C09K13/06 ,  C23F1/26 ,  C23F1/28 ,  H01L21/32134 ,  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, wherein the bitstream conforms to an order of a sub-bitstream extraction process that is defined by a rule that specifies (a) the sub-bitstream extraction process excludes an operation that removes all supplemental enhancement information (SEI) network abstraction layer (NAL) units, which satisfy a condition, from an output bitstream or (b) the order of the sub-bitstream extraction process includes replacing parameter sets with replacement parameter sets prior to removing, from an output bitstream, the SEI NAL units.

公开(公告)号：US11924475B2

公开(公告)日：2024-03-05

申请号：US18085988

申请日：2022-12-21

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

Inventor： Zhipin Deng ,  Ye-Kui Wang ,  Li Zhang

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/176

CPC classification number: H04N19/70 ,  H04N19/172 ,  H04N19/176

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 the current picture is a recovery point picture in response to the current picture being a Gradual Decoding Refresh (GDR) picture with a recovery Picture Order Count (POC) value of 0. The recovery POC count specifies a recovery point of decoded pictures in an output order.

公开(公告)号：US20240048798A1

公开(公告)日：2024-02-08

申请号：US18487342

申请日：2023-10-16

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

Inventor： Yongyi Yu ,  Le Yang ,  Jianping Chen ,  Ye-Kui Wang

IPC: H04N21/435 ,  H04N21/2187 ,  H04N21/845 ,  H04N21/438 ,  H04N21/4402 ,  H04N21/858

CPC classification number: H04N21/435 ,  H04N21/2187 ,  H04N21/8456 ,  H04N21/438 ,  H04N21/4402 ,  H04N21/8586

Abstract: A method for processing media data includes identifying in a media presentation description (MPD) an indication of a Tuning-In Media Segment. The Tuning-In Media Segment comprises a latest media data for a client device to start with when tuning into an ongoing live streaming service. The latest media data is selected from either a current media segment that is being generated by the ongoing live streaming service or a previous media segment generated by the ongoing live streaming service based on a length of the current media segment. The MPD is stored by the client device prior to the client device tuning into the ongoing live streaming service. The method further includes performing a conversion between a visual media data and a bitstream according to the MPD.

公开(公告)号：US20240040140A1

公开(公告)日：2024-02-01

申请号：US18483669

申请日：2023-10-10

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

Inventor： Ye-Kui Wang ,  Yang Wang ,  Li Zhang

IPC: H04N19/46

CPC classification number: H04N19/46

Abstract: A method implemented by a video coding apparatus. The method includes determining that a scalability dimension information (SDI) supplemental enhancement information (SEI) message provides SDI for each layer in a current coded video sequence (CVS); and performing a conversion between a video and a bitstream of the video based on the SDI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.

公开(公告)号：US20240031608A1

公开(公告)日：2024-01-25

申请号：US18476759

申请日：2023-09-28

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

Inventor： Yang Wang ,  Ye-Kui Wang ,  Li Zhang

IPC: H04N19/70 ,  H04N19/46

CPC classification number: H04N19/70 ,  H04N19/46

Abstract: A method of processing video data includes using a scalability dimension information (SDI) supplemental enhancement information (SEI) message to indicate which primary layers are associated with an auxiliary layer when auxiliary information is present in a bitstream, and converting between a video media file and the bitstream based on the SDI SEI message. A corresponding video coding apparatus and non-transitory computer readable medium are also disclosed.