Bytedance Inc.

Beijing Bytedance Network Technology Co., Ltd.

Qualcomm Incorporated

International Business Machines Corporation

Lemon Inc.

Other

Boehringer Ingelheim International Gmbh

Tsinghua University

Nokia Technologies Oy

Nuctech Company Limited

Globalfoundries Inc.

Omron Corporation

Daimlerchrysler Corporation

Boehringer Ingelheim Pharmaceuticals, Inc.

Ansys, Inc.

Li Feng Zhang

Kai Zhang

Hongbin Liu

Yue Wang

Jizheng Xu

Marta Karczewicz

Zhipin Deng

Ye-Kui Wang

Ying Hai Chen

Weijia Zhu

Wei-Jung Chien

Jianle Chen

Yang Wang

Xin Zhao

Xiang Yang Li

Xiaoqiao Meng

Zhen Liu

Parijat Dube

Yi-Wen Chen

Vadim Seregin

Yuwen He

Wei Zhang

Joel Sole Rojals

Yu-Chen Sun

Min Li

Scott M Carlson

Vijayaraghavan Thirumalai

Amir Said

Rajan Laxman Joshi

Chris Hugh Senanayake

Andrzej P Kochut

Alexei A Karve

Liangzhao Zeng

Siwei Ma

Zhiqiang Chen

Lars Dalsgaard

Frank Himmelsbach

Matthias Eckhardt

Hari Sankar

Wei Tan

Krishnakanth Rapaka

Laura Wynter

Nan Hu

Michael H Dawson

Alexei Yurievitch Gorokhov

Lei Zhang

Yang Liu

Yuanjing Li

Adarsh Krishnan Ramasubramonian

Xiang Li

Ting Wang

Inyup Kang

John Alan Bivens

Ronald Morton Smith, Sr

David Arlen Elko

Liana Liyow Fong

Anton Viktorovich Riabov

Haitao Zhang

Gilbert Christopher Sih

Minsik Cho

Curtis E Hrischuk

Ulrich Alfons Finkler

Daniel Manuel Dias

Da-shan Shiu

Joseph Binamira Soriaga

Valentina Salapura

Jonathan D Bradbury

Jun Wang

Xianglin Wang

Maja Vukovic

Ziran Zhao

Ashish Kundu

Qian Wang

Geert Van Der Auwera

Yue Li

Brian Clarke Banister

Yinong Liu

Yunfei Zheng

Douglas Morgan Freimuth

Ravi Nair

Tero Henttonen

Jinho Hwang

Bo Li

Clea Anne Zolotow

Bohuslav Rychlik

Vasileios Pappas

Michael Lee McCloud

Jianmin Li

Jeffrey Owen Kephart

Elena Virtej

Tedrick Neal Northway

Wei Pu

Wanlong Wu

Minkyong Kim

Meng Wang

Randy Scott Johnson

Cheng-Teh Hsieh

Asser Nasreldin Tantawi

Tong Chen

An example method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video, whether to enable usage of a chroma quantization parameter (QP) offset for the current block according to a syntax element at a level of a video unit. The video unit includes the current block and a second block of the video. The method also includes performing the conversion based on the determining.

Chroma quantization parameter in video coding

A video processing method includes performing a conversion between a video block of a video and a bitstream of the video according to a rule. The rule specifies whether or how usage of a secondary transform within a video unit is indicated in the bitstream. The secondary transform is applied before quantization or after de-quantization.

Coded video processing using enhanced secondary transform

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.

Conditional signaling of video coding syntax elements

One example method of video processing includes implementing, by a processor, a decoder-side motion vector derivation (DMVD) scheme for motion vector refinement during a conversion between a current video block and a bitstream representation of the current video block by deriving parameters based on a deriving rule. The conversion may include compressing the current video block into the bitstream representation or uncompressing the bitstream representation into pixel values of the current video block.

Decoder side motion derivation based on processing parameters

The disclosure relates to improvement on HMVP table. A method for processing video includes: maintaining, during a conversion between a current block of visual media data and a corresponding coded representation of the visual media data, a table storing history based motion vector prediction (HMVP) candidates which include motion information based on previously coded blocks; performing the conversion of the current block at least based on the table, wherein the table is of a HMVP table size which depends on one or more motion candidate lists, and the HMVP table size is a maximum number of candidates stored in the table.

HMVP table improvements

A mechanism for processing video data implemented by a video coding apparatus is disclosed. The mechanism determines whether a block is dyadic or non-dyadic. The mechanism also enables a coding tool associated with inter prediction when the block is determined to be dyadic. The mechanism also disables the coding tool when the block is determined to be non-dyadic. A conversion between a visual media data and a bitstream is performed by applying inter prediction to the block.

Inter-prediction on non-dyadic blocks

A method of video processing includes determining, for a conversion between a current block of a video and a bitstream representation of the video using a coding tool that accesses samples outside of the current block, that neighboring samples used for the conversion are unavailable. Samples that are located across a boundary of a video unit of the video are considered as unavailable samples. The method also includes performing, based on the determining, the conversion by padding samples in place of the neighboring samples that are unavailable. The padding samples are determined using samples that are restricted to be within a current processing unit associated with the current block.

Padding process at unavailable sample locations in adaptive loop filtering

A method for video processing is described. The method may include making a decision, for a conversion between a current video block of a video picture of a video and a coded representation of the video, regarding a size of a reference region of the video picture from which reference samples are used for predicting the current video block, based on a size of a virtual pipeline data unit (VPDU), a size of a coding tree block (CTB), or a size of a coding tree unit (CTU); and performing the conversion based on the decision.

Size restriction for intra-block copy virtual buffer

Devices, systems, and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes encoding a current video block of a video using a matrix intra prediction (MIP) mode in which a prediction block of the current video block is determined by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation; and adding, to a coded representation of the current video block, a syntax element indicative of applicability of the MIP mode to the current video block using arithmetic coding in which a context for the syntax element is derived based on a rule.

Context coding for matrix-based intra prediction

A mechanism for processing video data is disclosed. A conversion is performed between a visual media data and a visual media data file. The visual media data file includes a versatile video coding (VVC) decoder configuration record and a plurality of pictures coded into one or more sublayers, wherein the VVC decoder configuration record comprises a number of the one or more sublayers and one or more VVC profile tier level (PTL) records for the one or more sublayers based on the number of the one or more sublayers.

Decoder configuration information in VVC video coding

A method of processing video data includes determining, for a conversion between a current block of a video and a bitstream of the video, whether use of a geometric partitioning mode is enabled for the current block based on a rule that uses a characteristic of the current block; and performing the conversion according to the determining; wherein the rule specifies that the geometric partitioning mode for the current block is disabled in case that the current block has a specific size in width and/or height.

Extensions of inter prediction with geometric partitioning

Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In a representative aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block according to a rule, where the rule specifies a relationship between samples of the current video block and matrices or offset values applied in a matrix weighted intra prediction (MIP) mode during the conversion, and where the MIP mode includes determining a prediction block of the current video block by performing, on previously coded samples of the video, a boundary downsampling operation, followed by a matrix vector multiplication operation, and selectively followed by an upsampling operation.

Matrix derivation in intra coding mode

A method of video processing is described. The method includes determining, for a conversion between a current video block of a video unit of a video and a coded representation of the video, a default intra prediction mode for the video unit coded using a certain intra prediction mode such that a prediction block of the current video block is generated without extrapolating neighboring pixels of the current video block along a direction; and performing the conversion based on the determining.

Position based mode derivation in reduced secondary transforms for video

A hybrid transactional/analytical processing (HTAP) database includes an online transaction processing (OLTP) engine, an online analytical processing (OLAP) engine provided separately from the OLTP engine, and a shared storage holding data of multiple tenants. The shared storage is configured to receive a request from the OLAP engine for evaluation of a predicate against the data stored on the shared storage. The shared storage is further configured to determine that a CPU utilization of the shared storage exceeds a predicate refusal threshold. Upon determining that the CPU utilization of the shared storage exceeds the predicate refusal threshold, the shared storage is further configured to refrain from evaluating at least a portion of the predicate.

Predicate evaluation based on CPU utilization of shared storage

Devices, systems and methods for digital video coding, which includes matrix-based intra prediction methods for video coding, are described. In one aspect, a method for video processing includes performing a conversion between a current video block of a video and a bitstream representation of the current video block using a matrix based intra prediction (MIP) mode, where the conversion includes performing the upsampling operation in which the final prediction block is determined by using a reduced prediction block of the current video block and by using reconstructed neighboring samples of the current video block according to a rule, and where the reduced prediction block is obtained by performing the matrix vector multiplication operation on reduced boundary samples of the current video block.

Restricted upsampling process in matrix-based intra prediction

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Li Feng Zhang