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GB/T 33475.2-2024Information technology - High efficiency multimedia coding - Part 2: Video (English PDF)

信息技术高效多媒体编码第2部分：视频

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

May 28, 2024

Implementation date

December 1, 2024

Scope

GB/T 33475.2-2024 is the English-translated version of 信息技术高效多媒体编码第2部分：视频.

GB/T 33475.2-2024 is the Chinese standard "Information technology - High efficiency multimedia coding - Part 2: Video". Its scope clause reads: This document specifies the decoding process for a highly efficient video compression method that accommodates a wide range of bit rates, resolutions, and quality requirements.

This document is suitable for applications such as television broadcasting, digital movies, Internet TV, Internet video, video surveillance, real-time communication, digital storage media, etc. Encoding and decoding of video. Its clauses include terms and definitions.

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Document preview — GB/T 33475.2-2024

National Standard of the People's Republic of China

ICS: 35.040
Classification: L 71
Replacing: GB/T 33475.2-2016

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Preface
Introduction
1 Scope
2 Normative references
3 Terms and Definitions
4 Abbreviations
5 Agreement
6 Structure of the coded bitstream
7 Bitstream Syntax and Semantics
8 Parsing process
9 Decoding Process
Appendix A (Normative) Pseudo Start Code Method
Appendix B (Normative) Grades and Levels
Appendix C (Normative) Bitstream Reference Buffer Management
Appendix D (Normative) Weighted Quantization Matrix
Appendix F (Informative) High Dynamic Range Scene Brightness Fidelity Photoelectric Transfer Function
Appendix G (Informative) Color Conversion Methods
Appendix H (Informative) Single Viewpoint Texture Depth Stitching Method
Appendix I (Normative) Scanning Table
Appendix J (Informative) Advanced Entropy Encoder and Decoder Reference Description Method

1 Scope

This document specifies the decoding process for a highly efficient video compression method that accommodates a wide range of bit rates, resolutions, and quality requirements.

This document is suitable for applications such as television broadcasting, digital movies, Internet TV, Internet video, video surveillance, real-time communication, digital storage media, etc.

Encoding and decoding of video.

2 Normative references

The contents of the following documents constitute the essential clauses of this document through normative references in this document.

For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to

This document.

GY/T 155-2000 Video parameter values for production and exchange of high-definition television programs

ISO 11664-1/CIES014-1 Colorimetry-Part 1.Standard colorimetric observer

ISO 11664-3/CIES014-3 Colorimetry-Part 3.CIE tristimulus values)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 B picture

In inter-frame prediction, images are decoded using past and future reference images in display order.

3.2 reserved

Some specific syntax element values.

Note. For future extension of this document.

3.3 Transform coefficient

A scalar in the transform domain.

3.4 coding unit

It includes a luminance coding block and a corresponding chrominance coding block, which are divided by the maximum coding unit.

3.5 codingblock

The M×M sample value block is obtained by dividing the maximum coding block.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 266 pages — is available in the English PDF.

Referenced standards

Normative references

ISO 11664

Cited by

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