| 高效率视频编码 |
ITU-T H.265建议书 | 国际标准ISO/IEC 23008-2是现有视频编码建议书(ITU-T H.261、ITU-T H.262、ITU-T H.263和ITU-T H.264)的演变,是针对各种应用(如互联网流式传输、通信、视频会议、数字存储媒体和电视广播)对动态图像压缩需求与日俱增的情况而编制的。它还旨在以灵活的方式在广泛多样的网络环境中使用编码视频表达方式。本建议书 | 国际标准的使用,使得动态视频能够作为一种计算机数据形式进行处理,并存储在各种存储介质上,通过现有及未来的网络进行传输和接收,并在现有及未来的广播频道上进行分发。本次修订新增了一个配置文件规范,即多视图主10配置文件,并通过引用ITU-T H.274 | ISO/IEC 230027标准,增加了对12条新SEI消息的支持,具体包括:1) SEI处理顺序,2) 处理顺序嵌套,3) 编码器优化信息,4) 源画面时序信息,5) 模态信息,6) 数字签名内容初始化,7) 数字签名内容选择,8) 数字签名内容验证,9) 生成式人脸视频,10) 生成式增强人脸视频,11) AI使用限制请求,以及12) 打包区域信息SEI消息。本次修订还包括对接口文本的若干更新,以支持两个神经网络后滤波器(NNPF)SEI消息,扩展了胶片颗粒特性SEI消息,并更正了规范先前内容中的各种细微缺陷。本建议书 | 国际标准是与ISO/IEC JTC 1/SC 29共同制定的,并在技术上与ISO/IEC 23008-2保持一致。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/16661 |
| Series title: |
H series: Audiovisual and multimedia systems H.200-H.499: Infrastructure of audiovisual services H.260-H.279: Coding of moving video |
| Approval date: |
2026-01-13 |
| Identical standard: | ISO/IEC 23008-2 (Twinned) |
| Provisional name: | H.HEVC |
| Approval process: | AAP |
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Status: |
In force |
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Maintenance responsibility: |
ITU-T Study Group 21 |
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Further details: |
Patent statement(s)
Development history
[19 related work items in progress]
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ITU-T Supplement
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Title
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Status
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Summary
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Table of contents
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Download
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H Suppl. 1 (05/1999)
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Application profile – Sign language and lip-reading real-time conversation using low bit rate video communication
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In force
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here
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here
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here
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H Suppl. 6 (04/2006)
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Control load quantum for decomposed gateways
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In force
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here
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here
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here
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H Suppl. 9 (05/2008)
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Gateway control protocol: Operation of H.248 with H.225.0, SIP, and ISUP in support of emergency telecommunications service (ETS)/international emergency preference scheme (IEPS)
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In force
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here
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here
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here
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H Suppl. 11 (02/2009)
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Analysis of class-based home network QoS solutions
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In force
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here
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here
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here
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H Suppl. 12 (11/2013)
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Gateway control protocol: Priority traffic treatment by ITU-T H.248 gateways
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In force
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here
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here
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here
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H Suppl. 13 (10/2015)
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Gateway control protocol: Common ITU-T H.248 terminology - Release 2
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In force
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here
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here
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here
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H Suppl. 14 (10/2015)
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Gateway control protocol: SDP codepoints for gateway control - Release 2
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In force
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here
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here
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here
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H Suppl. 15 (01/2017)
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Conversion and coding practices for HDR/WCG Y'CbCr 4:2:0 video with PQ transfer characteristics
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In force
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here
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here
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here
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H Suppl. 17 (11/2014)
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Guide for addressing accessibility in standards
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In force
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here
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here
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here
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H Suppl. 18 (10/2017)
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Signalling, backward compatibility and display adaptation for HDR/WCG video coding
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In force
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here
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here
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here
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H Suppl. 19 (04/2021)
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Usage of video signal type code points
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In force
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here
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here
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here
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H Suppl. 21 (01/2025)
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Film grain synthesis technology for video applications
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In force
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here
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here
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here
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H Suppl. 22 (07/2026)
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Optimization of encoders and receiving systems for machine analysis of coded video content
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In force
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here
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-
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here
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| Title |
Approved on |
Download |
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Testing of personal audio systems for compliance with ITU-T H.870 (2018)
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2024
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here
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Testing of personal audio systems for compliance with ITU-T H.870 (2018)
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2021
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here
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Working practices using objective metrics for evaluation of video coding efficiency experiments
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2020
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here
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Media coding toolbox for IPTV: Audio and video codecs
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2016
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here
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Telecommunications Accessibility Checklist
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2006
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here
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