| 有关视频流编码的全面补充强化信息消息 |
ITU-T H.274建议书规定了用于编码视频比特流的视频可用性信息（VUI）参数和补充增强信息（SEI）消息的句法和语义。本建议书中定义的VUI参数和SEI消息可以以视频编码规范中指定的方式在编码视频的比特流中传送，或者可通过使用这种编码视频比特流的系统的规范所确定的其他方式传送。本建议书特别适用于由ITU-T H.266 | ISO/IEC 23090-3建议书指定的编码视频比特流，但其起草的方式具有充分的多样性和通用性，因此也可用于其他类型的编码视频比特流。 本建议书是与ISO/IEC JTC 1/SC 29合作制定的，作为技术一致的双文本与ISO/IEC 23002 7相对应。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/14949 |
| 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: |
2022-05-22 |
| Identical standard: | ISO/IEC 23002-7 (Twinned) |
| Provisional name: | H.SEI |
| Approval process: | AAP |
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Status: |
Superseded |
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Maintenance responsibility: |
ITU-T Study Group 21 |
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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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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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| 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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Telecommunications Accessibility Checklist
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2006
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here
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