ETSI TS 126 247-2016 Universal Mobile Telecommunications System (UMTS) LTE Transparent end-to-end Packet-switched Streaming Service (PSS) Progressive Download and Dynamic Adaptive .pdf

1、 ETSI TS 1Universal Mobile TelTranPacket-switchProgreDynamic Adaptive (3GPP TS 26.2TECHNICAL SPECIFICATION126 247 V13.2.0 (2016elecommunications System (LTE; ansparent end-to-end ched Streaming Service (PSS)ressive Download and Streaming over HTTP (3GP-.247 version 13.2.0 Release 1316-01) (UMTS); S)

2、; DASH) 13) ETSI ETSI TS 126 247 V13.2.0 (2016-01)13GPP TS 26.247 version 13.2.0 Release 13Reference RTS/TSGS-0426247vd20 Keywords 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 Associa

3、tion but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in electronic versions and/or in print. The content of any electronic and/or print

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7、xcept as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2016. All rights reserve

8、d. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM 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 th

9、e GSM Association. ETSI ETSI TS 126 247 V13.2.0 (2016-01)23GPP TS 26.247 version 13.2.0 Release 13Intellectual Property 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 avail

10、able for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Property Rights (IPRs); Essential, 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 serve

11、r (https:/ipr.etsi.org/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out 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

12、, essential to the present document. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document may refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be i

13、nterpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “nee

14、d 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 expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 247 V13.2.0 (20

15、16-01)33GPP TS 26.247 version 13.2.0 Release 13Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 8g3Introduction 8g31 Scope 9g32 References 9g33 Definitions, abbreviations and conventions . 11g33.1 Definitions 11g33.2 Abbreviations . 11g33.3 Conventions 12g

16、34 Overview 12g35 System Description 12g35.1 Overview 12g35.2 Service Access 13g35.3 Protocols . 13g35.3.1 General 13g35.3.2 Partial File Handling . 14g36 Progressive Download over HTTP . 14g36.1 General . 14g36.2 Progressive Download 14g36.3 3GPP File Format Profiles . 15g37 3GPP Dynamic Adaptive S

17、treaming over HTTP . 15g37.1 System Description. 15g37.2 3GP-DASH Client Model 16g37.3 3GP-DASH Profiles . 17g37.3.1 General 17g37.3.2 3GPP Adaptive HTTP Streaming (Release-9 AHS) . 17g37.3.3 3GP-DASH Release-10 Profile. 17g37.3.3.1 Introduction . 17g37.3.4 3GP-DASH Release 11 multiview stereoscopic

18、 3D video profile 17g37.3.5 3GP-DASH Release 11 frame-packed stereoscopic 3D video profile 18g37.3.6 Media Codecs . 18g37.3.7 Content Protection 18g37.3.8 Partial File Handling . 18g37.3.9 3GP-DASH Enhanced Interoperability Point . 19g38 DASH - Media Presentation . 20g38.1 Introduction 20g38.2 Media

19、 Presentation Description . 21g38.2.1 General 21g38.2.2 Schema and 3GPP Extension 21g38.2.3 (void) 22g38.2.4 (void) 22g38.3 MPD Assembly 22g38.4 Hierarchical Data Model 22g38.4.1 General 22g38.4.2 Period 23g38.4.2.1 General 23g38.4.2.2 Content Offering with Multiple Periods 24g38.4.3 Adaptation Sets

20、 and Representations 24g3ETSI ETSI TS 126 247 V13.2.0 (2016-01)43GPP TS 26.247 version 13.2.0 Release 138.4.3.1 Overview . 24g38.4.3.2 Common Attributes and Elements 25g38.4.3.3 Adaptation Set . 25g38.4.3.4 Representation . 27g38.4.3.5 Sub-Representation . 27g38.4.3.6 Content Component 28g38.4.4 Seg

21、ments and Segment Information . 28g38.5 MPD Update . 29g38.5.1 General 29g38.5.2 Media Presentation Description Delta 29g38.6 Additional Media Presentation Information . 30g38.6.1 Introduction. 30g38.6.2 Program Information. 30g38.6.3 Descriptors 31g38.7 Base URL Processing . 31g38.8 Event Streams .

22、 32g39 DASH - Usage of 3GPP File Format . 32g39.1 Introduction 32g39.2 Segment Types and Formats 32g39.2.1 Introduction. 32g39.2.2 Initialization Segment . 33g39.2.3 Media Segment . 33g39.2.3.1 General 33g39.2.3.2 Subsegments and Segment Index 33g39.2.3.3 Subsegment Index . 33g39.2.3.4 3GP-DASH Medi

23、a Segment Format . 33g39.2.4 Self-Initializing Media Segment . 33g39.2.5 Media Stream and Segment Properties . 33g39.2.5.1 Media Stream Access Points . 33g39.2.5.2 Non-overlapping Segments and Subsegments 33g39.2.5.3 Bitstream concatenation 33g39.3 Usage on Server and Client 34g39.4 Segment Properti

24、es with MPD constraints . 34g39.4.1 General 34g39.4.1.1 Introduction . 34g39.4.1.2 Media Presentation Timeline 34g39.4.1.3 Segment Index . 34g39.4.2 Segment Alignment 34g39.4.3 Bitstream Switching 34g39.4.4 Sub-Representation . 34g310 QoE for Progressive Download and DASH . 35g310.1 General . 35g310

25、.2 QoE Metric Definitions 35g310.2.1 Introduction. 35g310.2.2 HTTP Request/Response Transactions . 35g310.2.3 Representation Switch Events. 35g310.2.4 Average Throughput . 36g310.2.5 Initial Playout Delay . 36g310.2.6 Buffer Level 36g310.2.7 Play List 36g310.2.8 MPD Information 38g310.2.9 Playout De

26、lay for Media Start-up . 38g310.3 Quality Metrics for Progressive Download 38g310.4 Quality Metrics for DASH . 39g310.5 Quality Reporting Scheme for DASH 40g310.6 Quality Reporting Protocol. 41g310.6.1 General 41g310.6.2 Report Format . 41g310.6.3 Reporting Protocols 44g311 Live Services 45g3ETSI ET

27、SI TS 126 247 V13.2.0 (2016-01)53GPP TS 26.247 version 13.2.0 Release 1311.1 Overview Dynamic and Live Media Presentations 45g311.2 Dynamic Segment Download . 46g311.2.1 Background and Assumptions 46g311.2.2 MPD Information and Timing Model . 46g311.2.2.1 MPD Information 46g311.2.2.2 Segment Informa

28、tion Derivation . 47g311.2.2.2.1 Introduction . 47g311.2.2.2.2 Definitions . 47g311.2.2.2.3 MPD Information 48g311.2.2.2.4 Period Information . 48g311.2.2.2.5 Representation Information . 48g311.2.2.2.6 Media Time Information of Segment 49g311.2.2.2.7 Segment List Parameters . 49g311.2.2.2.8 URL Gen

29、eration with Segment Template . 51g311.2.3 Service Offering Requirements and Guidelines 51g311.2.3.1 General Service Offering Requirements . 51g311.2.3.2 Dynamic Service Offering Guidelines 51g311.2.3.2.1 Introduction . 51g311.2.3.2.2 Basic Parameter Settings . 52g311.2.3.3 Content Offering with Per

30、iods 53g311.2.3.3.1 General 53g311.2.3.4 Joining Recommendation 55g311.2.4 Client Operation, Recommendations and Guidelines (informative) . 56g311.2.4.1 Basic Operation . 56g311.2.4.2 Joining, Initial Buffering and Playout Recommendations. 58g311.2.4.2.1 General 58g311.2.4.2.2 Joining at the live ed

31、ge 58g311.2.5 Considerations on live edge) . 58g311.3 Live Services with MPD Updates 59g311.3.1 Background and Assumptions 59g311.3.2 Preliminaries . 59g311.3.2.1 MPD Information 59g311.3.2.2 Segment Information Derivation . 60g311.3.3 Service Offering Requirements and Guidelines 60g311.3.3.1 Genera

32、l 60g311.3.3.2 Setting the Minimum Update Period Value 61g311.3.3.3 Permitted Updates in an MPD . 61g311.3.3.4 Last Segment Message 61g311.3.4 MPD-based Live Client Operation based on MPD . 62g311.4 Provisioning of Live Content in On-Demand Mode 62g311.4.1 Scenario 62g311.4.2 Content Offering Requir

33、ements and Recommendations . 63g311.4.3 Client Behavior . 63g311.5 Availability Time Synchronization between Client and Server . 63g311.5.1 Background . 63g311.5.2 Service Provider Requirements and Guidelines 64g311.5.3 Client Requirements and Guidelines. 64g311.6 Robust Operation 65g311.6.1 General

34、 Robustness. 65g311.6.2 Synchronization Loss of Segmenter . 65g311.6.3 Encoder Clock Drift 65g311.6.4 Segment Unavailability . 65g311.6.5 Swapping across Redundant Tools . 65g312 Ad Insertion Enablers . 66g312.1 Background 66g312.2 Enablers 66g312.2.1 Period elements and Remote Periods 66g312.2.2 As

35、set Identifiers 67g312.2.3 MPD updates 67g3Annex A (informative): Example DASH Client Behaviour 68g3ETSI ETSI TS 126 247 V13.2.0 (2016-01)63GPP TS 26.247 version 13.2.0 Release 13A.1 Introduction 68g3A.2 Overview 68g3A.3 Segment List Generation 68g3A.4 Seeking . 68g3A.5 Support for Trick Modes 68g3A

36、.6 Switching Representations . 68g3A.7 Reaction to Error Codes . 68g3A.8 Encoder Clock Drift Control 68g3A.9 Handling Partial File Responses . 69g3A.10 Utilization of QoS Information 69g3A.11 Utilization of Quality Metadata 69g3Annex B (normative): Media Presentation Description Schema . 70g3B.1 Int

37、roduction 70g3B.2 Main Schema 70g3B.3 3GPP Extension Schema 70g3Annex C (normative): Descriptor Scheme Definitions 72g3C.1 Introduction 72g3C.2 Void 72g3C.3 Void 72g3C.4 3D Video Disparity Range Descriptor Scheme 72g3C.5 3D Video Display Information Scheme . 73g3Annex D (informative): MPD Examples .

38、 74g3D.1 On-Demand Service . 74g3D.2 Live Service 74g3D.3 MPD Assembly 76g3D.4 MPD Deltas 77g3Annex E (normative): Void . 81g3Annex F (normative): OMA DM QoE Management Object . 82g3Annex G (normative): File format extensions for 3GP DASH support . 86g3G.1 Introduction 86g3G.2 Void 86g3G.3 Void 86g3

39、G.4 Void 86g3G.5 Void 86g3G.6 Void 86g3Annex H (normative): MIME Type Registration for MPD 87g3H.1 MPD MIME Type 87g3ETSI ETSI TS 126 247 V13.2.0 (2016-01)73GPP TS 26.247 version 13.2.0 Release 13H.1.1 Introduction 87g3H.1.2 Void 87g3H.1.3 Void 87g3H.2 MPD Delta MIME Type. 87g3H.2.1 Introduction 87g

40、3H.2.2 MIME Type and Subtype . 87g3Annex I (informative): Signalling of DASH AVP values for QoS handling in the PCC . 89g3Annex J (normative): MIME Type Registration for QoE Reports . 91g3J.1 Introduction 91g3J.2 MIME Type and Subtype . 91g3Annex K (informative): Change history . 93g3History 94g3ETS

41、I ETSI TS 126 247 V13.2.0 (2016-01)83GPP TS 26.247 version 13.2.0 Release 13Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG

42、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 presented to TSG for information; 2 presented to TSG for approval

43、; 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 only changes have been incorporated in the document. The 3GPP t

44、ransparent end-to-end packet-switched streaming service (PSS) specification consists of seven 3GPP TSs: 3GPP TS 22.233 1, 3GPP TS 26.233 2, 3GPP TS 26.234 3, 3GPP TS 26.244 4, 3GPP TS 26.245 5, 3GPP TS 26.246 6, and the present document. The TS 22.233 contains the service requirements for the PSS. T

45、he TS 26.233 provides an overview of the PSS. The TS 26.234 provides the details of the protocols and codecs used by the PSS. The TS 26.244 defines the 3GPP file format (3GP) used by the PSS and MMS services. The TS 26.245 defines the Timed text format used by the PSS and MMS services. The TS 26.246

46、 defines the 3GPP SMIL language profile. The present document defines Progressive Download and Dynamic Adaptive Streaming over HTTP. The TS 26.244, TS 26.245 and TS 26.246 start with Release 6. Earlier releases of the 3GPP file format, the Timed text format and the 3GPP SMIL language profile can be

47、found in TS 26.234. The TS 26.247 starts with Release 10. Earlier releases of Progressive Download and Dynamic Adaptive Streaming over HTTP can be found in TS 26.234. Introduction Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH) collects a set of technologies how progressive

48、download and adaptive streaming of continuous media may be carried out exclusively over HTTP. ETSI ETSI TS 126 247 V13.2.0 (2016-01)93GPP TS 26.247 version 13.2.0 Release 131 Scope The present document specifies Progressive Download and Dynamic Adaptive Streaming over HTTP (3GP-DASH). This specifica

49、tion is part of Packet-switched Streaming Service (PSS). HTTP-based progressive download and dynamic adaptive streaming are separated from TS 26.234 to differentiate from RTP-based streaming that is maintained in TS 26.234. HTTP-based progressive download and dynamic adaptive streaming may be deployed independently from RTP-based PSS, for example by using standard HTTP/1.1 servers for hosting data formatted as defined in the present document. 2 References The following documents contain provisions which, through reference in this text, constitute provisions of the