GB/T 20090.13-2017Information technology—Advanced coding of audio and video—Part 13: Video tool library (English PDF)
信息技术 先进音视频编码 第13部分：视频工具集
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 29, 2017
Implementation date
July 1, 2018
Scope
GB/T 20090.13-2017 is the English-translated version of 信息技术 先进音视频编码 第13部分：视频工具集.
GB/T 20090.13-2017 is Part 13 of the Chinese AVS audio and video coding series and defines a library of video tools, one for each video compression algorithm of GB/T 20090.2-2013, with an informative example of building a decoder from them.
Each tool is identified by a tool number and a mnemonic and is described through seven elements.
The tools for the baseline profile include bitstream syntax parsing, inverse quantization, inverse transform, luma and chroma intra prediction, motion vector prediction and derivation in P_Skip, B_Skip, B_Direct and symmetric modes, luma and chroma block interpolation, macroblock reconstruction, inverse scan and reference frame caching.
Applications include digital terrestrial and cable television, broadband video services and remote video surveillance. It was issued on 29 December 2017 and has applied since 1 July 2018.
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Document preview — GB/T 20090.13-2017
National Standard of the People's Republic of China
- ICS
- 35.040
- Classification
- L 71
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Resolution Process
- 5 Tool Description Method
- 6 Video Tools
- 6.1 Tool Numbers and Mnemonic
- 6.2 GB/T 20090.2-2013 benchmark grade tools
- 6.2.1 Video stream syntax parsing
- 6.2.2 Inverse Quantification
- 6.2.3 Inverse Transform
- 6.2.4 Luminance Intra Mode Prediction
- 6.2.5 Luminance Intra Prediction
- 6.2.6 Chroma Intra Prediction
- 6.2.7 Motion Vector Prediction
- 6.2.8 Motion Vector Export in P_Skip Mode
- 6.2.9 Motion Vector Export in B_Skip and B_Direct Modes
- 6.2.10 Motion Vector Export in Symmetrical Mode
- 6.2.11 Time Prediction Information Cache
- 6.2.12 Motion Vector Reconstruction
- 6.2.13 Luma block interpolation
- 6.2.14 Macroblock Reconstruction
- 6.2.15 Chroma block interpolation
- 6.2.16 Reference Block Read Address Generation
- 6.2.17 current block write address generation
- 6.2.18 Current Frame Cache
- 6.2.19 intra brightness prediction value acquisition
- 6.2.20 Inverse scan
- 6.2.21 Reference Frame Cache
- 6.2.22 Reconstruction
- 6.2.23 Judgment of presence of intra-brightness predictors
- Appendix A (Informative) Example of Building a Decoder Using Video Tools
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.
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 document. 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
A processing unit characterized by input and output behavior.
3.2 Video tool set
Collection of video tools.
3.3 Video tool network
A network of connected video tools.
3.4 AVS video tool set
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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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 45 pages — is available in the English PDF.
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Related Standards
GB/T 20090.2-2013 — Information technology—Advanced coding of audio and video—Part 2: Video
GB/T 20090.1-2012 — Information technology - Advanced coding of audio and video - Part 1: System
GB/T 20090.10-2013 — Information technology—Advanced coding of audio and video—Part 10: Mobile speech and audio
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