1、 ETSI TS 102 539 V1.2.1 (2008-04)Technical Specification Digital Video Broadcasting (DVB);Carriage of Broadband Content Guide (BCG) informationover Internet Protocol (IP)European Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI ETSI TS 102 539 V1.2.1 (2008-04) 2 Reference RTS/JTC-DVB
2、-217 Keywords broadcasting, content, digital, DVB, IP, TV, video 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
3、 Important notice Individual copies of the present document can be downloaded from: http:/www.etsi.org The present document may be made available in more than one electronic version or in print. In any case of existing or perceived difference in contents between such versions, the reference version
4、is the Portable Document Format (PDF). In case of dispute, the reference shall be the printing on ETSI printers of the PDF version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status.
5、 Information on the current status of this and other ETSI documents is available at http:/portal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification
6、 No part may be reproduced except as authorized by written permission. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2008. European Broadcasting Union 2008. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM,
7、the TIPHON logo and the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM is a Trade Mark of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 3 Contents Intellectual Property Rights4 Forewo
8、rd.4 1 Scope 5 2 References 5 2.1 Normative references .5 2.2 Informative references6 3 Definitions and abbreviations.6 3.1 Definitions6 3.2 Abbreviations .7 4 Delivery of BCG data.7 4.1 Container-Based Delivery 8 4.1.1 Definitions 8 4.1.2 Transport.9 4.2 Query mechanism.10 5 Content Resolution.11 5
9、.1 RNT (Resolution Provider Notification Table) 11 5.2 RAR over IP descriptor 11 5.3 CRI structures.11 6 Profile of TV-Anytime Metadata for BCG 11 6.1 Introduction 11 6.2 Summary 11 6.3 ProgramInformation fragment11 6.4 GroupInformation fragment .12 6.5 Schedule fragment12 6.6 ServiceInformation fra
10、gment12 6.7 OnDemandProgram fragment 12 6.8 Purchase Information fragment 13 7 TV-Anytime Fragments .13 7.1 Fragment encapsulation13 7.2 Fragment encoding.13 7.3 DVB-TVA-init message.13 7.4 TVAMain fragment13 8 Locator .13 9 Usage of RTSP Methods 14 History 15 ETSI ETSI TS 102 539 V1.2.1 (2008-04) 4
11、 Intellectual 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 available for ETSI members and non-members, and can be found in ETSI SR 000 314: “Intellectual Propert
12、y 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 (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy, no investigation, includ
13、ing 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 present document. Foreword This Technical Specification (TS) has
14、 been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to co-ordinate the
15、drafting of standards in the specific field of broadcasting and related fields. Since 1995 the JTC Broadcast became a tripartite body by including in the Memorandum of Understanding also CENELEC, which is responsible for the standardization of radio and television receivers. The EBU is a professiona
16、l association of broadcasting organizations whose work includes the co-ordination of its members activities in the technical, legal, programme-making and programme-exchange domains. The EBU has active members in about 60 countries in the European broadcasting area; its headquarters is in Geneva. Eur
17、opean Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 Founded in September 1993, the DVB Project is a market-led consortium of public and private sector organizations in the television industry. Its aim is to establish the framework for the
18、introduction of MPEG-2 based digital television services. Now comprising over 200 organizations from more than 25 countries around the world, DVB fosters market-led systems, which meet the real needs, and economic circumstances, of the consumer electronics and the broadcast industry. ETSI ETSI TS 10
19、2 539 V1.2.1 (2008-04) 5 1 Scope The present document specifies the signalling and the transport of TV-Anytime information over an always-on bi-directional IP network. The specification allows for metadata describing both Content on Demand and live services delivered over any type of network using D
20、VB specifications (e.g. DVB-T, DVB-S, DVB-IP). It can be used to develop a Broadband Content Guide, i.e. a content guide that is delivered over an always-on bi-directional IP network. The present document is an addendum to TS 102 034 4. 2 References References are either specific (identified by date
21、 of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. Non-specific reference may be made only to a complete document or a part thereof and only in the following cases: - if it is accepted that it will be possible to use
22、 all future changes of the referenced document for the purposes of the referring document; - for informative references. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. For online referenced documents, info
23、rmation sufficient to identify and locate the source shall be provided. Preferably, the primary source of the referenced document should be cited, in order to ensure traceability. Furthermore, the reference should, as far as possible, remain valid for the expected life of the document. The reference
24、 shall include the method of access to the referenced document and the full network address, with the same punctuation and use of upper case and lower case letters. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity
25、. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated references, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI TS
26、102 323: “Digital Video Broadcasting (DVB); Carriage and signalling of TV-Anytime information in DVB transport streams“. 2 ETSI TS 102 822-3-2: “Broadcast and On-line Services: Search, select, and rightful use of content on personal storage systems (“TV-Anytime“); Part 3: Metadata; Sub-part 2: Syste
27、m aspects in a uni-directional environment“. 3 ETSI TS 102 822-3-1: “Broadcast and On-line Services: Search, select, and rightful use of content on personal storage systems (“TV-Anytime“); Part 3: Metadata; Sub-part 1: Phase 1 - Metadata schemas“. 4 ETSI TS 102 034: “Digital Video Broadcasting (DVB)
28、 Transport of MPEG-2 TS Based DVB Services over IP Based Networks“. 5 IETF RFC 1950: “ZLIB Compressed Data Format Specification version 3.3“. 6 IETF RFC 1951: “DEFLATE Compressed Data Format Specification version 1.3“. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 6 7 ETSI TS 102 822-6-1: “Broadcast and On-
29、line Services: Search, select, and rightful use of content on personal storage systems (“TV-Anytime“); Part 6: Delivery of metadata over a bi-directional network; Sub-part 1: Service and transport“. 8 W3C Note (08 May 2000): “Simple Object Access Protocol (SOAP) 1.1“. 9 ISO/IEC 13818-1: “Information
30、 technology - Generic coding of moving pictures and associated audio information: Systems“. 10 ISO/IEC 23001-1 (MPEG-B): “Information Technology - MPEG Systems Technology - Binary MPEG format for XML“. 11 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Service Information (SI)
31、in DVB systems“. 12 IETF RFC 2326: “Real Time Streaming Protocol (RTSP)“. 13 ISO 8601 (2004): “Data elements and interchange formats - Information interchange - Representation of dates and times“. 14 IETF RFC 2616: “Hypertext Transfer Protocol - HTTP/1.1“. 2.2 Informative references Not applicable.
32、3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Content on Demand (CoD): program provided at the request of the end user for direct consumption (real-time streaming) or storage NOTE: The user could be a person or a
33、PVR or some other entity. content provider: entity that owns or is licensed to sell content or content assets delivery network: network connecting the delivery network gateway and service providers Delivery Network Gateway (DNG): device that is connected to one or multiple delivery networks and one
34、or multiple home network segments DVB-IP service: DVB service provided over IP or content on demand over IP DVB service: as defined by DVB, “a sequence of programmes under the control of a broadcaster which can be broadcast as part of a schedule“ event: grouping of elementary broadcast data streams
35、with a defined start and end time belonging to a common service EXAMPLE: First half of a football match, News Flash, first part of an entertainment show. Home Network End Device (HNED): device that is connected to a home network and which typically terminates the IP based information flow (sender or
36、 receiver side) package: collection of DVB services marketed as a single entity program: collection of program elements NOTE: Program elements may be elementary streams. Program elements may have a common time base for synchronized presentation. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 7 Service Provid
37、er (SP): entity providing a service to the end-user NOTE: In the context of the present document, SP will mean a Service Provider providing DVB-IP services. SP offering: set of streams or services a Service Provider proposes to the end-user Transport Stream: data structure defined in ISO/IEC 13818-1
38、 9 TS Full SI: transport stream with embedded service information as defined by DVB in EN 300 468 11 with the exception of the network information table NIT NOTE: This table may be omitted as it has no meaning in the context of IP services. TS - Optional SI: A transport stream with MPEG PSI (PAT and
39、 PMT tables) as defined in ISO/IEC 13818-1 9 NOTE: All other MPEG-2 and DVB tables are optional. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: BCG Broadband Content Guide BiM Binary format for Multimedia description streams CoD Content on Demand CRI C
40、ontent Referencing Information CRID Content Reference IDentifier DNG Delivery Network GatewayDVB Digital Video Broadcasting DVBSTP DVB SD - via unicast (i.e. pulled). Query: - via unicast. The IPI-1 interface SHALL support the container-based mechanism, both via multicast and unicast. It MAY additio
41、nally support the query mechanism. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 8 On all networks there SHALL be at least one BCG provider that supports the container based download mechanism. Additionally, this provider MAY support the query mechanism. For clarification, the query mechanism is optional fo
42、r both Service Providers and HNEDs. The container based download mechanism uses the Data Delivery Unit, as specified in clause 4.1.1.3, delivered via the mechanisms specified in clause 4.2. The query mechanism is specified in clause 4.3. 4.1 Container-Based Delivery 4.1.1 Definitions 4.1.1.1 Contain
43、er A container shall carry either a RNT, one or more CRI structures or Metadata. Each container is distinguished by a unique identifier, which is the container_id. Table 1 shows the clauses in the present document where the container format, according to each type of data carried, is defined. Table
44、1: Container Format Definitions Type of data carried Container Format Definition RNT Clause 5.1 in the present document CRI structures TS 102 323 1, clause 7.3.1.3 Metadata TS 102 323 1, clause 9.3 The type of data that the container carries determines the scope and format of the structure values. 4
45、.1.1.2 Compression wrapper The compression_wrapper allows a container to be carried in a compressed or uncompressed format. The syntax of the compression_wrapper is defined in table 21, clause 7.3.1.5 of TS 102 323 1. The compression_wrapper shall always be present, whether or not the container is c
46、ompressed. The semantics of the fields of table 21, clause 7.3.1.5 of TS 102 323 1 are modified as follows: container(): See clause 4.1.1.1 for the definition of the container structure. NOTE: This definition differs from TS 102 323 1, where the compression wrapper may contain CRI structures only. c
47、ompression_structure: This shall contain a container (see clause 4.1.1.1) encoded as a Zlib stream (as defined in RFC 1950 5). When present, the Zlib stream shall have its compression method nibble set to “1000“, indicating use of the Deflate compression algorithm as specified in RFC 1951 6. 4.1.1.3
48、 Data Delivery Unit A Data Delivery Unit is a container, as defined in clause 4.1.1.1, within a compression wrapper as defined in clause 4.1.1.2. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 9 4.1.2 Transport 4.1.2.1 SD any hex number from 0x00 to 0xff SegmentId = 4*4 HEXDIG;any hex number from 0x0000 to 0
49、xffff SegmentItem = SegmentId 0*1( any hex number from 0x00 to 0xff For example, the following request can be constructed to request the index list structure (see TS 102 323 1, clause 9.2.2): “GET /dvb/sdns/bcg?Payload=A4; time_duration | ; where host is the address of the service, TVA_id and time_duration are as specified in TS 102 323 1, clause 6.4, and window_start and window_end are represented using ISO 8601 13. ETSI ETSI TS 102 539 V1.2.1 (2008-04) 14For instance, the following sample sho
