| Extended video procedures and control signals for ITU-T H.300-series terminals | 
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                                Recommendation ITU-T H.241 defines the use of advanced video codecs, including those based on Recommendation ITU-T H.264, in ITU-T H.300-series terminals, including ITU-T H.310, ITU T H.320, ITU-T H.321, ITU-T H.322, ITU-T H.323 and ITU-T H.324 terminals. It also defines generic extended signalling for use with all video codecs in the ITU-T H.300 series terminals. 
This revised version introduces a number of enhancements and clarifications to the previous version. Clarification concerns primarily the description on the signalling for ITU-T H.264 Annex G Scalable Baseline and Scalable High Profiles, a procedure for selecting the operating point of a scalable video coding (SVC) video stream, and the Capability Class of ITU-T H.241 capabilities. This version incorporates clause 6.2.5 introduced in ITU-T H.241 (2006) Amd. 1 (2008), allowing for the negotiation of particular video submodes of ITU-T H.264 encoding. It also incorporates clause 8.3.2.14, defining a new optional ITU-T H.264 capability parameter (MaxFPS), and Appendix II which contains non-normative examples describing the use of clause 6.2.5. Clause 8.3.2.14 and Appendix II were both introduced in ITU-T H.241 (2006) Amd. 2 (2009). 
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                                | Citation: | 
                                https://handle.itu.int/11.1002/1000/11538 | 
                             
                            
                                | Series title: | 
                                H series: Audiovisual and multimedia systems   H.200-H.499: Infrastructure of audiovisual services   H.240-H.259: Communication procedures | 
                             
                            
                                | Approval date: | 
                                2012-02-29 | 
                             
                            
                            | Provisional name: | H.VideoSignaling |  
                            | 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 
                                    
                                    
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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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					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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