通用视听业务的先进的视频编码 |
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本建议书|国际标准是由已有视频编码标准发展而来(H.261,H.262和H.263),以适应各种应用,如视频会议,数字存储媒体,电视广播,互联网流式传输和通信等,对运动图像压缩比提出的更高要求,本编码标准正是为了满足这种日益增长的需求而开发的。同时,本标准的设计也能够使编码图像能够以灵活的方式在不同的网络环境中使用。使用本建议书|国际标准可使得运动图像能以计算机数据的形式被使用,并能够存储在各种存储媒体上,在现有或未来网络中传送和接收,在现有或未来广播信道中分发。
本版本于2005年3月通过,包含的修改是对视频编码标准增加了四个简表,分别是高级,高级 10,高级 4:2:2和高级 4:4:4,提高了视频质量能力,从而扩展了标准的应用的范围(如,通过包括支持更大范围的图像样点精度和更高解析度的色度格式来实现)。另外,定义了补充数据的新类型,更进一步扩展视频编码标准的适用性。最后,对已印刷版本中的若干错误进行了修正。本版本除了增强了视频编码能力以外,还用来和联合研发的ISO/IEC 14496-10标准在技术上保持一致。
ITU-T H.264 建议书的勘误表1修改和更新了一些次要的方面,使之与于2005年4月通过的联合开发并且技术一致的ISO/IEC 14496-10的最新版本的文本相一致。它还改正了一些次要错误,进行了一些必要的澄清,并且定义了三个前面预留的幅型比标识符。
本版本包括2005年3月通过的文本以及在2005年9月通过的勘误表1。
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Citation: |
https://handle.itu.int/11.1002/1000/7825 |
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: |
2005-03-01 |
Identical standard: | ISO/IEC 14496-10:2005 (Twinned) |
Provisional name: | H.26L |
Approval process: | AAP |
Status: |
Superseded |
Observation: | This edition includes the modifications introduced by H.264 (2005) Cor.1 approved on 13 September 2005 |
Maintenance responsibility: |
ITU-T Study Group 16 |
Further details: |
Patent statement(s)
Development history
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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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Title |
Approved on |
Download |
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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