GB/T 46269.1-2025High dynamic range (HDR) video technology — Part 1: Metadata and processing (English PDF)

Foreword

This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents". Drafting.

This document is Part 1 of GB/T 46269, "High Dynamic Range (HDR) Video Technology". GB/T 46269 has the following publications. part.

— Part 1: Metadata and Adaptation;

— Part 2: Application Guidelines.

This document was proposed by the National Information Technology Standardization Technical Committee (SAC/TC28).

This document was prepared by the National Technical Committee on Information Technology Standardization (SAC/TC28) and the National Technical Committee on Standardization of Radio, Television and Online Audiovisual Programs.

It is under the jurisdiction of the committee (SAC/TC239).

This document was drafted by: China Electronics Technology Standardization Institute, China Media Group, and the Broadcasting and Television Department of the State Administration of Radio and Television.

Research Institute, State Administration of Radio and Television Broadcasting Planning Institute, Huawei Technologies Co., Ltd., Tencent Technology (Shenzhen) Co., Ltd., HiSilicon Technology Limited Liability Company, Beijing iQiyi Technology Co., Ltd., Shenzhen CESI Information Technology Co., Ltd., Chengdu Sobey Digital Technology Co., Ltd.

Hangzhou Danghong Technology Co., Ltd., Shenzhen Skyworth Display Technology Co., Ltd., Konka Group Co., Ltd., and Hisense Visual Technology Co., Ltd.

Limited Liability Company, Qingdao Haier Multimedia Co., Ltd., Leyard Optoelectronic Co., Ltd., China Telecom Group Corporation, China Mobile Communications Group Limited, China United Network Communications Limited, Xiaomi Communications Technology Co., Ltd., OPPO Guangdong Mobile Communications Co., Ltd.

Beijing National Engineering Laboratory for Digital Television Co., Ltd., Migu Culture Technology Co., Ltd., China Mobile (Hangzhou) Information Technology Co., Ltd., China Telecom Digital Life Technology Co., Ltd., China Unicom Online Information Technology Co., Ltd., Guangdong Bohua Ultra HD Innovation Center Co., Ltd., Guangzhou Keweixin Digital Technology Co., Ltd., Beijing Gehua Cable Television Network Co., Ltd., Oriental Cable Network Co., Ltd., and iShang TV Media (Beijing) Limited Liability Company, World Ultra HD Video Industry Alliance.

The main drafters of this document are: Fan Kefeng, Sun Qifeng, Jiang Wenbo, Pan Xiaofei, Guo Xiaoqiang, Zhou Yun, Ning Jinhui, Zhang Qian, Yu Quanhe, and Sun Lei.

Yuan Le, Li Yongpeng, Chen Renwei, Zhang Jinsha, Sun Yanlong, Xu Yaoling, Luo Shaofeng, Li Bin, Huang Junjie, Bai Jianjun, Luo Chuanfei, Liu Xianda, Wang Yahui Yu Lei, Lai Hangman, Mao Ke, Wang Qi, Wang Ding, Shi Weijia, Lin Lin, Chen Zhimin, Zeng Zhihua, Dong Yuan, Wu Jian, Pan Hongmei, Zhang Wengang, Qiu Puye Li Yan, Hu Xiao, Wang Huiming, Zhang Xiufeng.

Introduction

High dynamic range (HDR) display adaptation is a key technology for ultra-high-definition video, requiring stable display across devices with varying display capabilities.

Effects. GB/T 46269 aims to standardize adaptive display adaptation technology for HDR video signals on terminals with different display capabilities, and is proposed to consist of two... Partial composition.

— Part 1: Metadata and Adaptation. The purpose is to define the end-to-end system framework, metadata definitions, and terminal requirements for HDR video technology. Show the adaptation process.

— Part 2: Application Guide. This section aims to help users build products and systems that support the HDR video technologies described in Part 1.

The system enables interoperability.

The issuing organization of this document draws your attention to the fact that declarations of compliance with this document may involve clauses 7.3, 7.4, 8.1, 8.2, 8.3, 8.4, and 8.5, and dynamic elements.

Data shows that the use of related patents is compatible.

The issuing organization of this document makes no position on the authenticity, validity, or scope of the patent.

The patent holder has committed to the issuing authority of this document that he is willing to cooperate with any applicant on reasonable and non-discriminatory terms and conditions.

Next, negotiations will be held regarding patent licensing. The patent holder's statement has been filed with the issuing agency of this document. Relevant information can be found through the following... Contact information obtained.

Patent holder. Huawei Technologies Co., Ltd.

Address. Huawei Base A, Bantian, Longgang District, Shenzhen, Guangdong Province.

Please note that in addition to the patents mentioned above, some content in this document may still involve patents. The issuing organization of this document does not assume responsibility for identifying patents. responsibility.

High Dynamic Range (HDR) video technology Part 1: Metadata and Adaptation

1 Scope

This document defines the end-to-end system framework, metadata definition, and terminal display adaptation process for high dynamic range (HDR) video technology.

This document applies to high dynamic range video applications such as broadcast television, online audiovisual media, video surveillance, real-time communication, and digital storage media.

Processing of frequency signals, including acquisition, production, broadcasting, distribution, reception, and display.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies. This document.

ISO /CIE 11664-1 Colorimetry - Part 1: Standard colorimetric instruments

3 Terms and Definitions

The following terms and definitions apply to this document.

4 Abbreviations

The following abbreviations apply to this document. HDR. High Dynamic Range MSB. Most Significant Bit