1、 ETSI TR 126 949 V14.0.0 (2017-04) Universal Mobile Telecommunications System (UMTS); LTE; Video formats for 3GPP services (3GPP TR 26.949 version 14.0.0 Release 14) TECHNICAL REPORT ETSI ETSI TR 126 949 V14.0.0 (2017-04)13GPP TR 26.949 version 14.0.0 Release 14Reference RTR/TSGS-0426949ve00 Keyword
2、s LTE,UMTS ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be download
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7、tten authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2017. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPP
8、TM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI TR 126 949 V14.0.0 (2017-04)23GPP TR 26.949 version 14.0.0 Release 14Intellectual Property
9、 Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essen
10、tial, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web server (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried o
11、ut by ETSI. No guarantee can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Technical Report (TR) has been produced by ETSI 3rd Generation Partn
12、ership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI id
13、entities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the exp
14、ression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TR 126 949 V14.0.0 (2017-04)33GPP TR 26.949 version 14.0.0 Release 14Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 5g31 Sco
15、pe 6g32 References 6g33 Definitions and abbreviations . 7g33.1 Definitions 7g33.2 Abbreviations . 7g34 Background and Context 8g34.1 Introduction 8g34.2 Scenarios and Deployment Cases . 9g34.2.1 Scenario 9g34.2.2 Media-Format Related Challenges . 10g34.2.3 Content Adaptation and Provisioning Functio
16、ns 11g35 Traditional Distribution Formats 12g35.1 Overview 12g35.2 Methodology 12g35.3 Collected Information . 13g35.3.1 DVB 13g35.3.1.1 Introduction . 13g35.3.1.2 Video codec profiles and levels 13g35.3.1.3 Defined parameters for video profiles . 14g35.3.1.4 Video coding parameters for broadcast di
17、stribution . 15g35.3.1.5 Audio related Parameters 15g35.3.1.6 Parameters for special services (supplementary streams, DASH sub-resolutions, etc.) 18g35.3.1.7 Any implementation guidelines 18g35.3.1.8 Deducted Information on Random Access Points . 18g35.3.2 ATSC 18g35.3.2.1 Introduction . 18g35.3.2.2
18、 Colorimetry aspects . 19g35.2.2.3 Frame rate aspects . 19g35.2.2.4 RAP period in ATSC 19g35.3.3 DECE 19g35.3.3.1 Introduction . 19g35.3.3.2 Colorimetry aspects . 19g35.3.3.3 Frame rate aspects . 20g35.3.3.4 RAP period in DECE 20g35.3.4 Response from DASH-IF 20g35.4 Summary 20g35.4.1 Overview 20g35.
19、4.2 Spatial Resolution . 21g35.4.3 Frame Rates 21g35.4.4 Colorimetry Formats . 22g35.4.5 Random Access 23g35.4.6 Video Codecs and Other Video Parameters 23g35.4.7 Non-Video Related Parameters . 24g36 Video Operation Point Parameters . 24g36.1 Video resolution . 24g36.1.1 Introduction. 24g36.1.2 Work
20、ing assumptions . 24g36.1.3 Video profile resolution definition 25g3ETSI ETSI TR 126 949 V14.0.0 (2017-04)43GPP TR 26.949 version 14.0.0 Release 146.1.4 Selection of video profile resolutions for operation points . 26g36.2 Viewing Distance and Resolution 26g36.2.1 Introduction. 26g36.2.2 Optimum Vie
21、wing Distance . 27g36.2.3 Conclusions. 28g37 Non-video related aspects 28g38 Enablers for different 3GPP services . 29g38.1 Introduction 29g38.2 DASH Signalling Enablers . 29g38.2.1 Relevant Signaling Parameters . 29g38.2.2 DASH Signaling Background . 29g38.2.2.1 Representations in one Adaptation Se
22、t 29g38.2.2.2 Receiver Processing Model . 30g38.2.2.3 Signaling Framework and Options 30g38.2.2.4 Open Questions and Potential Answers 32g38.2.2.5 Gap Analysis on DASH-based signalling . 34g39 Information from Example Deployments . 34g39.1 Description of Linear / Live TV using MBMS 34g310 Conclusion
23、s and Recommendations . 35g3Annex A: Change history 39g3History 40g3ETSI ETSI TR 126 949 V14.0.0 (2017-04)53GPP TR 26.949 version 14.0.0 Release 14Foreword This Technical Report has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to con
24、tinuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the present document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 p
25、resented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under change control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial
26、 only changes have been incorporated in the document. ETSI ETSI TR 126 949 V14.0.0 (2017-04)63GPP TR 26.949 version 14.0.0 Release 141 Scope The scope of the present document is to support the generation of a technical specification which defines a limited set of operation points for TV services in
27、order to enable a consistent service offering within 3GPP. For this purpose the present document collects relevant information from other organizations and summarizes and consolidates these findings. Additional 3GPP specific aspects on TV profiles (such as existing and emerging UE capabilities, deli
28、very enablers, or specific service aspects) are collected and put in context. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition num
29、ber, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest ve
30、rsion of that document in the same Release as the present document. 1 3GPP TR 21 905: “Vocabulary for 3GPP Specifications“. 2 3GPP TS 26.234: “Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs“. 3 3GPP TS 26.346: “Multimedia Broadcast/Multicast Service (MBMS); Prot
31、ocols and codecs“. 4 3GPP TS 26.247: “Transparent end-to-end Packet-switched Streaming Service (PSS); Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH)“. 5 DVB ETSI TS 101 154 v2.2.1 (2015-06): “Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Cod
32、ing in Broadcasting Applications based on the MPEG-2 Transport Stream “. 6 ETSI TS 103 285 v1.1.1 (2015-05): “Digital Video Broadcasting (DVB); MPEG-DASH Profile for Transport of ISO BMFF Based DVB Services over IP Based Networks“. 7 ETSI EN 300 468 V1.14.1 (2014-05): “Specification for Service Info
33、rmation (SI) in DVB systems“. 8 ETSI EN 300 743 V1.5.1 (2014-01): “Digital Video Broadcasting (DVB); Subtitling systems“ 9 ETSI TS 101 211 V1.12.1 (2013-12): “Guidelines on implementation and usage of Service Information (SI)“ 10 DASH-IF, “Guidelines for Implementation: DASH-IF Interoperability Poin
34、ts“, version 3.0. 11 ISO/IEC 23001-8:2013, “Information technology - MPEG systems technologies - Part 8: Coding-independent code points“. 12 ISO/IEC 14496-12:2015: “Information technology - Coding of audio-visual objects - Part 12: ISO base media file format“. 13 ITU-T Recommendation H.264 (01/2012)
35、: “Advanced video coding for generic audiovisual services“ | ISO/IEC 14496-10:2010: “Information technology Coding of audio-visual objects Part 10: Advanced Video Coding“. 14 ISO/IEC 14496-15:2014/Cor 1:2015: “Information technology - Coding of audio-visual objects - Part 15: Carriage of network abs
36、traction layer (NAL) unit structured video in ISO base media file format“. ETSI ETSI TR 126 949 V14.0.0 (2017-04)73GPP TR 26.949 version 14.0.0 Release 1415 ITU-T Recommendation H.265 (07/2013): “Advanced video coding for generic audiovisual services“ | ISO/IEC 23008-2:2013: “ High Efficiency Coding
37、 and Media Delivery in Heterogeneous Environments Part 2: High Efficiency Video Coding“. 16 ISO/IEC 23009-1:2014/Cor.1:2015/Amd.1:2015: “Information technology - Dynamic adaptive streaming over HTTP (DASH) - Part 1: Media presentation description and segment formats“. 17 ATSC A/53, Part 4:2009: “MPE
38、G-2 Video System Characteristics“. 18 ATSC A/72 Part 1 3GPP file format (3GP)“. 27 void 28 Recommendation ITU-R BT.2022 (2012): “General viewing conditions for subjective assessment of quality of SDTV and HDTV television pictures on flat panel displays“. 29 ISO/IEC 14496-3: “Information technology -
39、 Coding of audio-visual objects - Part 3: Audio“. 30 ETSI TS 102 366 V1.2.1 (2008-08): “Digital Audio Compression (AC-3, Enhanced AC-3) Standard“. 31 ANSI/SCTE 128-2: “AVC Video Constraints for Cable Television, Part 1 Transport“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of t
40、he present document, the terms and definitions given in TR 21.905 1 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any, in TR 21.905 1. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in TR
41、 21.905 1 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in TR 21.905 1. ARIB Association of Radio Industries and Business ATSC Advanced Television Systems Committee CDN Content Delivery Network ETSI ETS
42、I TR 126 949 V14.0.0 (2017-04)83GPP TR 26.949 version 14.0.0 Release 14CICP Coding-independent code points DASH Dynamic Adaptive Streaming over HTTP DASH-IF DASH Industry Forum DECE Digital Entertainment Content Ecosystem DVB Digital Video Broadcasting DTT Digital Terrestrial TV EBU European Broadca
43、st Union GOP Group of Pictures IRD Integrated Receiver-Decoder ISO BMFF ISO Base Media File Format HbbTV Hybrid broadcast broadband TV HD High Definition HEVC High Efficiency Video Coding HRD Hypothetical Refence Decoder LTE Long Term Evolution MBMS Multimedia Broadcast/Multicast Service MBSFN Multi
44、cast-Broadcast Single Frequency Network MNO Mobile Network Operator MPD Media Presentation Descriptor PSS Packet-switched Streaming Service RAP Random Access Point SAP Stream Access Point SCTE Society of Cable Technology Engineers SD Standard Definition SEI Supplemental Enhancement Information TV Te
45、leVision UHD Ultra-High Definition VoD Video on Demand VUI Video Usability Information 4 Background and Context 4.1 Introduction Linear TV services can be made available on 3GPP networks via MBMS 3 and PSS 2 user services (over RTP or 3GP-DASH 4). - 3GP-DASH aims at offering the best quality of expe
46、rience as possible by adapting to the UE capabilities and dynamically to the network conditions. Linear TV and on-demand services are already identified as major use cases for 3GP-DASH delivery format. - (e)MBMS user services offer the possibility to offload the network when the same content is cons
47、umed simultaneously by many UEs. This typically happens when a large audience accesses the same content concurrently, such as a popular football match, the Olympic Games, a political debate, breaking news, etc. For this reason, the access to live broadcast TV services is a major use case for eMBMS.
48、For traditional linear TV distribution, TV services accessed through Satellite, Digital Terrestrial TV (DTT), cable or IPTV obey to requirements on the video profiles to ensure a consistent quality of experience while accessing different channels within a TV bouquet. On-demand video services, via st
49、reaming or downloading, generally obey to the same requirements. Up to Release-12, 3GPP specifications are missing detailed definitions of distribution formats (such as spatial and temporal resolutions, aspect ratios, random access points, etc.) for which operators and service providers can provide guarantees in terms of quality of experience. Typically, 3GPP service specifications only define profiles and levels of video codecs. Therefore, additional requirements/guidelines on video formats (frame
