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Basic data
| Standard ID | GB/T 33475.7-2024 (GB/T33475.7-2024) |
| Description (Translated English) | Information technology - High efficiency multimedia coding - Part 7: Image format |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | L70 |
| Classification of International Standard | 35.040 |
| Word Count Estimation | 18,169 |
| Date of Issue | 2024-05-28 |
| Date of Implementation | 2024-12-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 33475.7-2024: Information technology - High efficiency multimedia coding - Part 7: Image format
---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.
ICS 35:040
CCSL70
National Standards of People's Republic of China
Information Technology Efficient Multimedia Coding
Part 7: Image file formats
Part 7: Image format
Released on 2024-05-28
2024-12-01 implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
Introduction IV
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 3
5 Agreement 3
6 System Framework 3
7 Coded bit stream structure 4
7:1 Image Sequence 4
7:2 Image 5
8-bit stream syntax and semantics 5
8:1 Syntax Description 5
8:2 Semantic Description 10
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document is part 7 of GB/T 33475 "Information Technology Efficient Multimedia Coding": GB/T 33475 has been published as follows
part:
--- Part 1: System;
--- Part 2: Video;
--- Part 3: Audio;
--- Part 4: Compliance test;
--- Part 5: Reference software;
--- Part 6: Intelligent Media Transport;
--- Part 7; Image file formats:
This document was proposed and coordinated by the National Technical Committee for Information Technology Standardization (SAC/TC28):
This document was drafted by: Tencent Technology (Shenzhen) Co:, Ltd:, Peking University, Pengcheng Laboratory, Zhongguancun Audiovisual Industry Technology Innovation
alliance:
The main drafters of this document are: Liu Shan, Wu Zurong, Liu Haijun, Zhang Yajun, Gao Lijuan, Hu Xin, Li Lijun, Guo Jing, Chen Jiajun, Wang Shitao,
Liu, X:Y:, Gao, W:, Wang, R:G:, and Zhao, H:Y:
Introduction
GB/T 33475 aims to establish methods for efficient compression of digital audio and video media and is intended to consist of seven parts:
--- Part 1: System: The purpose is to establish a system layer coding method for digital audio and video media:
--- Part 2: Video: The purpose is to establish efficient video compression methods:
--- Part 3: Audio: The purpose is to establish efficient audio compression methods:
--- Part 4: Conformance test: The purpose is to determine how to test and verify the coded bit stream and decoder:
--- Part 5: Reference software: The purpose is to define the software that meets the requirements of GB/T 33475:2-2024 and GB/T 33475:3-2018
Required reference software:
--- Part 6: Intelligent Media Transport: The purpose is to specify intelligent media for multimedia data transmission in heterogeneous packet switching networks:
Transmission technology:
--- Part 7: Picture file format: The purpose is to specify the syntax description, semantic description,
Package definition:
The issuing organization of this document calls attention to the fact that when declaring compliance with this document, it may involve 8:1:2 Patents related to digital video coding and decoding technology:
The patent information is as follows:
Patent No: Patent Name Patent Owner
1:201710225909:0 A method and system for processing image files Tencent Technology (Shenzhen) Co:, Ltd:
2:201710225910:3 A method for processing image files Tencent Technology (Shenzhen) Co:, Ltd:
3:201710225913:7 A method for processing image files Tencent Technology (Shenzhen) Co:, Ltd:
4:201710225905:2 A method for processing image files and intelligent terminal Tencent Technology (Shenzhen) Co:, Ltd:
5:201710225914:1 A method and device for processing image files, and a system thereof Tencent Technology (Shenzhen) Co:, Ltd:
6:201710225916:0 A method and device for processing image files Tencent Technology (Shenzhen) Co:, Ltd:
The issuing organization of this document takes no position on the authenticity, validity and scope of this patent:
The patent holder has assured the issuing authority that he is willing to work with any applicant on reasonable and non-discriminatory terms and conditions:
The patent holder's statement has been filed with the issuing agency of this document, and relevant information can be obtained through
Get in touch with:
Contact: Zhao Haiying (Digital Audio and Video Codec Technical Standard Working Group)
Mailing address: Room 515, Mudan Venture Building, No: 2 Huayuan Road, Haidian District, Beijing
Postal Code:100191
Email:hy-zhao@163:com
Tel: 8610-82282177
Fax: 8610-82282177
Website: http://www:avs:org:cn
Please note that in addition to the above patents, some of the contents of this document may still involve patents: The issuing organization of this document does not assume the responsibility to identify these patents:
The responsibility of benefit:
Information Technology Efficient Multimedia Coding
Part 7: Image file formats
1 Scope
This document specifies the syntax description, semantic description, and encapsulation definition of an efficient multimedia coded image file format:
This document is applicable to application areas such as dynamic images, static images, etc: in Internet multimedia, games, and digital media services:
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:
GB/T 33475:1-2019 Information technology - Efficient multimedia coding - Part 1: Systems
GB/T 33475:2-2024 Information technology - Efficient multimedia coding - Part 2: Video
ITU-RBT:601-2001 Standard 4:3 and widescreen 16:9 display aspect ratio studio digital television coding parameters (Studioen-
3 Terms and definitions
The terms and definitions defined in GB/T 33475:2-2024 and the following apply to this document:
3:1
reserved
Some specific syntax element values:
Note: For future extension of this document:
[Source: GB/T 33475:2-2024, 3:2]
3:2
component
One of the three sample matrices (luminance and two chrominance) of an image or a single sample in one of the matrices:
[Source: GB/T 33475:2-2024, 3:23]
3:3
Parsing process
The process of obtaining syntax elements from a bitstream:
[Source: GB/T 33475:2-2024, 3:35]
3:4
Profile
A subset of syntax, semantics, and algorithms:
[Source: GB/T 33475:2-2024, 3:39, modified]
...
