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Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 33475.5-2024: Information technology - High efficiency multimedia coding - Part 5: Reference software Status: Valid
Basic dataStandard ID: GB/T 33475.5-2024 (GB/T33475.5-2024)Description (Translated English): Information technology - High efficiency multimedia coding - Part 5: Reference software Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: L71 Classification of International Standard: 35.040 Word Count Estimation: 22,259 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 33475.5-2024: Information technology - High efficiency multimedia coding - Part 5: Reference software---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 CCSL71 National Standards of People's Republic of China Information Technology Efficient Multimedia Coding Part 5: Reference Software Part 5: Reference software 2024-12-01 implementation State Administration for Market Regulation The National Standardization Administration issued Table of ContentsPreface III Introduction IV 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Abbreviations 1 5 Overview 1 6 Video Reference Software 1 7 Audio Reference Software 2 Appendix A (Informative) Coding Software 3 Appendix B (Informative) Detailed instructions for using the video reference software 4 Appendix C (Informative) Detailed Instructions for Using the Audio Reference Software 8ForewordThis 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 5 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: Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents: This document was proposed and coordinated by the National Technical Committee for Information Technology Standardization (SAC/TC28): This document was drafted by: China Electronics Standardization Institute, Pengcheng Laboratory, Huawei Technologies Co:, Ltd:, Peking University, Beijing Jingsheng Information Technology Co:, Ltd:, Shanghai University of Engineering Science, Tsinghua University, Shenzhen DJI Innovations Technology Co:, Ltd:, Zhejiang University, Panorama Sheng (Beijing) Intelligent Technology Co:, Ltd: and Zhongguancun Audiovisual Industry Technology Innovation Alliance: The main drafters of this document are: Li Jingxin, Zheng Jianhua, Gao Yuan, Li Junru, Xu Shumin, Zhao Haiwu, Dou Weibei, Zheng Xiaozhen, Yu Lu, Pan Xingde, Qiu Puye, He Zhichu, Shao Zhenjiang, Wang Zhe, Zhang Weimin, Zhao Haiying, Chen Xiaotian, Fan Tao:IntroductionGB/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: This document contains simulation software for the tool set defined in GB/T 33475:2-2024 and GB/T 33475:3-2018: Evolved from a series of verification models during the standard setting process: As a tool is accepted and added to the reference software, there will be Delayed, therefore tools defined in other parts of GB/T 33475 may not be included in this reference software: When encoding software exists, it is important to note that these encoders only support bitstreams generated by the specified syntax elements: The performance of the encoder cannot be used as a measure of the quality and degree of optimization of computational complexity: Give a definition: This document currently only defines the requirements for GB/T 33475:2-2024 and GB/T 33475:3-2018 that meet GB/T 33475:2- Reference software required by GB/T 2024 and GB/T 33475:3-2018: This document references software in the following six categories: a) Video elementary stream decoding software is defined in Chapter 6: Video reference software receives codecs that conform to GB/T 33475:2-2024: The video reference software It is a prescriptive part of GB/T 33475, but the implementation technology used in this software is not considered prescriptive because it is not Different implementations can produce the same results; the entire reference software is considered prescriptive because it can Correctly implement the decoding process described in GB/T 33475:2-2024: b) The basic stream encoding software is defined in Appendix A: The software generates basic streams according to the corresponding media format (video), that is, video The software encoder provides a method to obtain the basic video stream that conforms to the syntax specified in GB/T 34753:2-2024: This document does not specify coding techniques, and the quality and complexity of the coding software provided in this document is not yet determined: Optimized: c) The detailed instructions for using the reference software are defined in Appendix B: The software can generate the following information in accordance with the configuration method specified in the Appendix: Code streams with different encoding conditions: d) Audio elementary stream decoding software is defined in Chapter 7, and audio reference software receives audio in accordance with GB/T 33475:3-2018: Encode the elementary streams and then decode them to generate the media format associated with the elementary stream, that is, audio: The software is a prescriptive part of GB/T 33475, but the implementation technology used in this software is not considered prescriptive because Different implementations may produce the same result; the entire reference software is considered prescriptive because it To correctly implement the decoding process described in GB/T 33475:3-2018: e) Audio elementary stream coding software is defined in Appendix A: This software generates elementary streams according to the corresponding media format (audio): The software encoder provides a method to obtain audio basic streams in accordance with GB/T 34753:3-2018: This document does not specify encoding techniques, and the quality and complexity of such encoding software is provided by this document: It is also unoptimized: f) Detailed instructions for use of the audio reference software are defined in Appendix C: The software can be configured to generate Code streams that meet different encoding conditions: Information Technology Efficient Multimedia Coding Part 5: Reference Software1 ScopeThis document defines the reference software that meets the requirements specified in GB/T 33475:2-2024 and GB/T 33475:3-2018: This document applies to digital television broadcasting, interactive storage media, live satellite video services, multimedia mail, and multimedia over packet networks: Development, debugging and acceptance of application systems such as business, real-time communication business, and remote video monitoring:2 Normative referencesThe 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 33475:2-2024 Information technology - Efficient multimedia coding - Part 2: Video GB/T 33475:3-2018 Information technology - Efficient multimedia coding - Part 3: Audio3 Terms and definitionsThe terms and definitions defined in GB/T 33475:2-2024 and GB/T 33475:3-2018 apply to this document:4 AbbreviationsThe following abbreviations apply to this document:5 OverviewImplementations that comply with GB/T 33475:2-2024 and GB/T 33475:3-2018 do not necessarily strictly follow the algorithms of the reference software or Programming technology: The decoding software cannot exceed the technical description text of GB/T 33475:2-2024 and GB/T 33475:3-2018: The location and description of the encoding software are in Appendix A: Detailed instructions for using the video reference software are in Appendix B: Detailed instructions for using the audio reference software are in Appendix B: See Appendix C for detailed instructions:6 Video Reference SoftwareThe video reference software given in this document is compiled in accordance with the requirements of GB/T 33475:2-2024: The location is relative to the reference software root directory: See Table 1 for the location and description of the video reference software: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 33475.5-2024_English be delivered?Answer: Upon your order, we will start to translate GB/T 33475.5-2024_English as soon as possible, and keep you informed of the progress. 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