GB/T 20090.13-2017 English PDF

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GB/T 20090.13-2017: Information technology -- Advanced coding of audio and video -- Part 13: Video tool library
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Basic data

Standard ID: GB/T 20090.13-2017 (GB/T20090.13-2017)
Description (Translated English): Information technology -- Advanced coding of audio and video -- Part 13: Video tool library
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L71
Classification of International Standard: 35.040
Word Count Estimation: 62,648
Date of Issue: 2017-12-29
Date of Implementation: 2018-07-01
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 20090.13-2017: Information technology -- Advanced coding of audio and video -- Part 13: Video tool library

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Information technology-Advanced coding of audio and video-Part 13. Video tool library ICS 35.040 L71 National Standards of People's Republic of China Information Technology Advanced Audio and Video Coding Part 13. Video Toolset Part 13. Videotoollibrary Published on.2017-12-29 2018-07-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Administration released Directory Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Resolution Process 1 5 Tool Description Method 1 6 Video Tools 3 6.1 Tool Numbers and Mnemonic 3 6.2 GB/T 20090.2-2013 benchmark grade tools 4 6.2.1 Video stream syntax parsing 4 6.2.2 Inverse Quantification 7 6.2.3 Inverse Transform 8 6.2.4 Luminance Intra Mode Prediction 9 6.2.5 Luminance Intra Prediction 10 6.2.6 Chroma Intra Prediction 12 6.2.7 Motion Vector Prediction 13 6.2.8 Motion Vector Export in P_Skip Mode 17 6.2.9 Motion Vector Export in B_Skip and B_Direct Modes 19 6.2.10 Motion Vector Export in Symmetrical Mode 21 6.2.11 Time Prediction Information Cache 23 6.2.12 Motion Vector Reconstruction 27 6.2.13 Luma block interpolation 27 6.2.14 Macroblock Reconstruction 28 6.2.15 Chroma block interpolation 30 6.2.16 Reference Block Read Address Generation 30 6.2.17 current block write address generation 32 6.2.18 Current Frame Cache 32 6.2.19 intra brightness prediction value acquisition 33 6.2.20 Inverse scan 34 6.2.21 Reference Frame Cache 35 6.2.22 Reconstruction 36 6.2.23 Judgment of presence of intra-brightness predictors 37 Appendix A (Informative) Example of Building a Decoder Using Video Tools 39

Foreword

GB/T 20090 "Information Technology Advanced Audio Video Coding" is divided into the following 14 parts. --- Part 1. System; ---Part 2. Video; --- Part 3. Audio; --- Part 4. Compliance Testing; --- Part 5. Reference Software; --- Part 6. Trusted decoders and access protocols for digital rights management; --- Part 7. Video Codecs for Interactive Applications; --- Part 8. Transmission of AVS over IP networks; --- Part 9. AVS file format; --- Part 10. Mobile voice and audio; --- Part 11. Synchronous text; --- Part 12. Synthetic scenarios; --- Part 13. Video Toolsets; --- Part 16. Radio and television video. This part is Part 13 of GB/T 20090. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part is proposed and managed by the National Information Technology Standardization Technical Committee (SAC/TC28). This section was drafted by. Zhejiang University, Peking University, University of Chinese Academy of Sciences, Beijing University of Technology, Zhongguancun Audiovisual Technology Innovation alliance. The main drafters of this section are. Lou Lu, Qi Honggang, Ding Dandan, Yin Haibing, Duan Lijuan, Xi Tao, Huang Tiejun, and Gao Wen. Information Technology Advanced Audio and Video Coding Part 13. Video Toolset

1 Scope

This part of GB/T 20090 defines the video tool for each video compression algorithm according to GB/T 20090.2-2013, and An example of using a video tool to build a decoder is given (see Appendix A). This section applies to, but is not limited to, the following areas. Digital terrestrial television broadcasting, cable television, interactive storage media, direct broadcast satellite video industry Services, broadband video services, multimedia e-mail, packet network multimedia services, real-time communication services, remote video surveillance applications.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 20090.2-2013 Information technology, advanced audio and video coding Part 2. Video

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Video Tools videotool A processing unit characterized by input and output behavior. 3.2 Video tool set videotoollibrary Collection of video tools. 3.3 Video tool network videotoolnetwork A network of connected video tools. 3.4 AVS video tool set AVSvideotoollibrary Contains a set of video tools for each compression algorithm in GB/T 20090.2-2013.

4 resolution process

The input to the decoder in this section is the tool number, and the output of the decoder in accordance with this section is the video tool. Unique for each tool number Corresponding to a video tool, the correspondence is defined by Chapter 6. The implementation of video tools should conform to the definition of video tools in Chapter 6 of this part. The number output by the encoder conforming to this section shall comply with the restrictions on the number of video tools in this section.

5 Tool Description

The description of the video tool defined in this section should include the following seven elements (see Table 1~Table 4). ......

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