| IPTV系统无障碍获取的特征 |
本建议书为IPTV系统的接入功能定义了三种属性，其得到的支持逐级增加。基本属性（Basic Profile）提供入门级的接入支持 ，主要属性（Main Profile）提供最广泛的功能；高级属性（Enhanced Profile）提供介于以上两种属性的中级支持。接入信息包括字幕、手语流和音频说明等向IPTV终端设备发送的，独立于视频内容的信息。通过定义上述属性，残疾人可更轻松地选择拥有其所需功能的终端设备。 |
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| Citation: |
https://handle.itu.int/11.1002/1000/12648 |
| Series title: |
H series: Audiovisual and multimedia systems
H.700-H.799: IPTV multimedia services and applications for IPTV
H.700-H.719: General aspects |
| Approval date: |
2015-11-29 |
| Provisional name: | H.IPTV-ACCProf |
| 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Superseded |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. 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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-
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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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Conformance testing specification for H.702
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2017
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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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IPTV Green Book
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2015
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here
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Glossary and terminology of IP-based TV-related multimedia services
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2014
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here
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Delivery and control protocols handled by IPTV terminal devices
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2011
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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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