1、 ETSI TS 126 246 V15.0.0 (2018-07) Universal Mobile Telecommunications System (UMTS); LTE; Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP SMIL language profile (3GPP TS 26.246 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 126 246 V15.0.0 (2018-07)13GPP TS 26.2
2、46 version 15.0.0 Release 15Reference RTS/TSGS-0426246vf00 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 Association but non lucratif enregistre la Sous-Prfecture de Grasse (0
3、6) 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 versions of the present document shall not be modified without
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9、5.0.0 (2018-07)23GPP TS 26.246 version 15.0.0 Release 15Intellectual Property Rights Essential patents IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information pertaining to these essential IPRs, if any, is publicly available for ETSI members
10、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 server (https:/ipr.etsi.org
11、/). 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, essential to the pre
12、sent document. Trademarks The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners. ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no right to use or reproduce any trademark and
13、/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The p
14、resent 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 identities can be found under
15、http:/webapp.etsi.org/key/queryform.asp. Modal verbs terminology In the present document “shall“, “shall not“, “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 expressio
16、n of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 126 246 V15.0.0 (2018-07)33GPP TS 26.246 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g31 Scope 5g3
17、2 References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 6g34 3GPP SMIL Language Profile Outline 6g35 Document Conformance. 6g36 User Agent Conformance . 7g37 3GPP SMIL Language Profile definition . 7g37.1 Content Control Modules . 7g37.2 Layout Module . 8g37.3 Lin
18、king Module 8g37.4 Media Object Modules . 8g37.5 Metainformation Module . 9g37.6 Structure Module 9g37.7 Timing and Synchronization modules 9g37.8 Transition Effects Module 9g38 Content Model 10g3Annex A (informative): SMIL authoring guidelines . 12g3A.1 General . 12g3A.2 BasicLinking 12g3A.3 BasicL
19、ayout 12g3A.4 EventTiming . 13g3A.5 MetaInformation . 13g3A.6 XML entities 13g3A.7 XHTML Mobile Profile . 13g3Annex B (normative): Additional specification on the systemComponent Test Attribute . 15g3B.1 General . 15g3B.2 Definition of Attribute Encoding 15g3B.3 Behaviour of a 3GPP SMIL Player 15g3A
20、nnex C (informative): Change history 16g3History 17g3ETSI ETSI TS 126 246 V15.0.0 (2018-07)43GPP TS 26.246 version 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing
21、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 presented
22、 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 only ch
23、anges have been incorporated in the document. The 3GPP transparent end-to-end packet-switched streaming service (PSS) specification consists of five 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, and the present document. The TS 22.233 contains th
24、e service requirements for the PSS. The TS 26.233 provides an overview of the PSS. The TS 26.234 provides the details of protocol and codecs used by the PSS. The TS 26.244 defines the 3GPP file format (3GP) used by the PPS and MMS services. TS 26.245 defines the Timed Text format used by the PSS. Th
25、e TS 26.244, TS 26.245, and Ts 26.246 (present document) start with Release 6. Earlier releases of the 3GPP file format, the Timed text format, and the 3GPP SMIL Language Profile can be found in TS 26.234. ETSI ETSI TS 126 246 V15.0.0 (2018-07)53GPP TS 26.246 version 15.0.0 Release 151 Scope The pre
26、sent document includes the specification of the 3GPP SMIL Language Profile. The 3GPP SMIL Language Profile is also referred to as “3GPP PSS SMIL Language Profile“ 3 and also just “3GPP SMIL“. The 3GPP SMIL Language Profile is based on SMIL 2.0 Basic 7 and SMIL Scalability Framework. It is a clean su
27、bset of SMIL 2.0 Full profile 7, and a clear superset of SMIL 2.0 Basic 7. The 3GPP SMIL Language Profile is used by the PSS 23 and MMS 6 services. The 3GPP SMIL Language Profile is in no way restricted to be used with only these services, but can also be used for other services. 2 References The fo
28、llowing 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 number, version number, etc.) or non-specific. - For a specific reference, subsequent revisions do n
29、ot 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 version of that document in the same Release as the present document. 1 3GPP TS 22.233: “Transparen
30、t End-to-End Packet-switched Streaming Service; Service aspects; Stage 1“. 2 3GPP TS 26.233: “Transparent end-to-end Packet-switched Streaming Service (PSS); General description“. 3 3GPP TS 26.234: “Transparent end-to-end Packet-switched Streaming Service (PSS); Protocols and codecs“. 4 3GPP TS 26.2
31、44: “Transparent end-to-end Packet-switched Streaming Service (PSS); 3GPP file format (3GP)“. 5 3GPP TS 26.245: “Transparent end-to-end Packet-switched Streaming Service (PSS); Timed-text format“. 6 3GPP TS 26.140: “Multimedia Messaging Service (MMS); Media formats and codecs“. 7 W3C Recommendation:
32、 “Synchronized Multimedia Integration Language (SMIL 2.0)-Second Edition“, http:/www.w3.org/TR/2005/REC-SMIL2-20050107/, January 2005. 8 W3C Recommendation: “Cascading Style Sheets, level 2, CSS2 Specification, http:/www.w3.org/TR/1998/REC-CSS2-19980512, 12.05.1998 3 Definitions and abbreviations 3.
33、1 Definitions For the purposes of the present document, the following terms and definitions apply: continuous media: media with an inherent notion of time. In the present document speech, audio, video and timed text discrete media: media that itself does not contain an element of time.In the present
34、 document all media not defined as continuous media ETSI ETSI TS 126 246 V15.0.0 (2018-07)63GPP TS 26.246 version 15.0.0 Release 15PSS client: client for the 3GPP packet switched streaming service based on the IETF RTSP/SDP and/or HTTP standards, with possible additional 3GPP requirements according
35、to the present document PSS server: server for the 3GPP packet switched streaming service based on the IETF RTSP/SDP and/or HTTP standards, with possible additional 3GPP requirements according to the present document scene description: description of the spatial layout and temporal behaviour of a pr
36、esentation. It can also contain hyperlinks 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 3 and the following apply. HTML Hyper Text Markup Language MIME Multipurpose Internet Mail Extensions MMS Multimedia Messaging Service PSS Packet-switched
37、Streaming Service SMIL Synchronised Multimedia Integration Language UCS-2 Universal Character Set (the two octet form) UTF-8 Unicode Transformation Format (the 8-bit form) UTF-16 Unicode Transformation Format (the 16-bit form) W3C WWW Consortium XHTML eXtensible Hyper Text Markup Language XML eXtens
38、ible Markup Language 4 3GPP SMIL Language Profile Outline 3GPP SMIL is a markup language based on SMIL Basic 7 and SMIL Scalability Framework. 3GPP SMIL consists of the modules required by SMIL Basic Profile (and SMIL 2.0 Host Language Conformance) and additional MediaAccessibility, MediaDescription
39、, MediaClipping, MetaInformation, PrefetchControl, EventTiming and BasicTransitions modules. All of the following modules are included: - SMIL 2.0 Content Control Modules - BasicContentControl, SkipContentControl and PrefetchControl - SMIL 2.0 Layout Module - BasicLayout - SMIL 2.0 Linking Module Ba
40、sicLinking, LinkingAttributes - SMIL 2.0 Media Object Modules BasicMedia, MediaClipping, MediaParameter, MediaAccessibility and MediaDescription - SMIL 2.0 Metainformation Module - Metainformation - SMIL 2.0 Structure Module - Structure - SMIL 2.0 Timing and Synchronization Modules - BasicInlineTimi
41、ng, MinMaxTiming, BasicTimeContainers, RepeatTiming and EventTiming - SMIL 2.0 Transition Effects Module - BasicTransitions 5 Document Conformance A conforming 3GPP SMIL document shall be a conforming SMIL 2.0 document. All 3GPP SMIL documents use SMIL 2.0 namespace. 3GPP SMIL documents may declare
42、requirements using systemRequired attribute: ETSI ETSI TS 126 246 V15.0.0 (2018-07)73GPP TS 26.246 version 15.0.0 Release 15EXAMPLE 1: - Namespace URI http:/www.3gpp.org/SMIL20/PSS4/ identifies the version of the 3GPP SMIL profile defined in Release 4 of 3. - Namespace URI http:/www.3gpp.org/SMIL20/
43、PSS5/ identifies the version of the 3GPP SMIL profile defined in Release 5 of 3. - Namespace URI http:/www.3gpp.org/SMIL20/PSS6/ identifies the version of the 3GPP SMIL profile defined in Release 6 in the present document. Authors may use these URIs to indicate requirement for exact 3GPP SMIL semant
44、ics for a document or a subpart of a document: EXAMPLE 2: The content authors should generally not include the PSS requirement in the document unless the SMIL document relies on PSS specific semantics that are not part of the W3C SMIL. The reason for this is that SMIL players that are not conforming
45、 3GPP PSS user agents may not recognize the PSS URI and thus refuse to play the document. 6 User Agent Conformance A conforming 3GPP SMIL user agent shall be a conforming SMIL Basic User Agent. A conforming user agent shall implement the semantics 3GPP SMIL as described in clauses 7 and 8 (including
46、 subclauses). A conforming user agent shall recognise - the URIs of all included SMIL 2.0 modules; - the URI http:/www.3gpp.org/SMIL20/PSS6/ as referring to all modules and semantics of the version of the 3GPP SMIL profile described in Release 6 in the present document; - the URI http:/www.3gpp.org/
47、SMIL20/PSS5/ as referring to all modules and semantics of the version of the 3GPP SMIL profile described in Release 5 of document 3; - the URI http:/www.3gpp.org/SMIL20/PSS4/ as referring to all modules and semantics of the 3GPP SMIL profile defined in Release 4 of document 3. NOTE: The difference b
48、etween release 4 and release 5 is that the BasicTransitions module has been added in release 5. Releases 4 and 5 are defined in 3. NOTE: The difference between release 5 and release 6 is that the MediaParameter module and additional specification on the ContentControl module systemComponent test att
49、ribute have been added in release 6. Release 5 is defined in 3. 7 3GPP SMIL Language Profile definition 3GPP SMIL is based on SMIL 2.0 Basic language profile 7. This chapter defines the content model and integration semantics of the included modules where they differ from those defined by SMIL Basic. 7.1 Content Control Modules 3GPP SMIL includes the content control functionality of the BasicContentControl, SkipContentControl and PrefetchControl modules of SMIL 2.0. PrefetchControl is not part of S
