1、 ETSI TS 102 539 V1.1.1 (2006-11)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 V1.1.1 (2006-11) 2 Reference DTS/JTC-DVB
2、-195 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
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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 2006. European Broadcasting Union 2006. All rights reserved. DECTTM, PLUGTESTSTM and UMTSTM are Trad
7、e Marks of ETSI registered for the benefit of its Members. TIPHONTMand the TIPHON logo are Trade Marks currently being registered by ETSI 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
8、 539 V1.1.1 (2006-11) 3 Contents Intellectual Property Rights4 Foreword.4 1 Scope 5 2 References 5 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.8 4.2 Query mechanism.10 5 Content Re
9、solution.11 5.1 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 .11 6.5 Schedule fragment12 6.6 ServiceIn
10、formation fragment12 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 DVB locator extensions14 9 Usage of RTSP Methods 14 History 15 ETSI ETSI TS
11、102 539 V1.1.1 (2006-11) 4 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
12、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 (http:/webapp.etsi.org/IPR/home.asp). Pursuant to the ETSI IPR Policy
13、, 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 present document. Foreword This Techni
14、cal Specification (TS) has 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 i
15、n 1990 to co-ordinate the 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
16、. The EBU is a professional 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 head
17、quarters is in Geneva. European 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 establ
18、ish the framework for the 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
19、 industry. ETSI ETSI TS 102 539 V1.1.1 (2006-11) 5 1 Scope The present document is an addendum to TS 102 034 4 concerning Broadcast Content Guides (BCG). It provides specifications for the signalling and delivery of TV-Anytime information in DVB-IP services. The BCG addresses both Content on Demand
20、and Live Content, whether the content is available as a DVB-IP service or as a pure DVB service. It has been written to be compatible as much as possible with TS 102 323 1, which specifies the signalling and delivery of TV-Anytime information in DVB transport streams. 2 References The following docu
21、ments contain provisions which, through reference in this text, constitute provisions of the present document. References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For a specific reference, subsequent revisions do not apply. For
22、a non-specific reference, the latest version applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot gua
23、rantee their long term validity. 1 ETSI TS 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-Anyt
24、ime“), Part 3: Metadata; Sub-part 2: System 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
25、102 034: “Digital Video Broadcasting (DVB) Transport of MPEG-2 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“. 7 ETSI TS 102 822-6-1: “Broadcast and On-l
26、ine 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 “Simple Object Access Protocol (SOAP) 1.1“ W3C Note 08 May 2000. 9 ISO/IEC 13818-1: “Information tec
27、hnology - 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) in D
28、VB systems“. ETSI ETSI TS 102 539 V1.1.1 (2006-11) 6 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“. 3 Defin
29、itions 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 Content Provider: entity that owns or is lice
30、nsed to sell content or content assets NOTE: The user could be a person or a PVR or some other entity. 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 or mult
31、iple 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 with a
32、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 receiv
33、er 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. Service Provider (SP): entity providing a service to the end-
34、user. 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 9 TS Full SI: transport stream with embedded service
35、 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 PMT tables) as defined in ISO/IEC 13818-1 9 NOTE: Al
36、l other MPEG-2 and DVB tables are optional. ETSI ETSI TS 102 539 V1.1.1 (2006-11) 7 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 Content Refere
37、ncing 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 additionally support
38、 the query mechanism. 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 for both Service Providers and HNEDs. The container bas
39、ed 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. ETSI ETSI TS 102 539 V1.1.1 (2006-11) 8 4.1 Container-Based Delivery 4.1.1 Definitions 4.1.1.1 Container A containe
40、r 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 1: Container
41、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. 4.1.1.2 Compre
42、ssion 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 compressed. Th
43、e 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. compression_st
44、ructure: 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 Data Deliver
45、y 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. 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 0xffff SegmentItem = SegmentId 0*1( any hex number fro
46、m 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=0xA4source_address where host_address is the multicast address of the service, and source_address is the optional address of the multi
47、cast source host. The previous syntax shall be used to reference an item of content when using TVA_id and time_duration as specified in TS 102 323 1, for instance: rtp:/224.1.2.3:1234;3982982006-01-23T02:00:00Z/PT01H34M where 398298 is the TVA_id. Additionally, the signalling of availability start a
48、nd end times for on-demand content shall use the following format: ; where window_start and window_end are represented using ISO 8601 13, for instance: rtsp:/:9090/mycontent 2006-01-01T00:00:00Z;2006-01-31T23:59:59Z. 9 Usage of RTSP Methods Where RTSP is used to access content on demand, the RTSP DE
49、SCRIBE (TS 102 034 4, clause 6.3.1.2) and ANNOUNCE Methods (TS 102 034 4, clause 6.3.1.1) shall use an XML complex structure of the TV-Anytime type BasicContentDescriptionType. The namespace shall be specified at the start of the XML document, with the default being as specified in TS 102 323 1. The data shall be carried in unicast mode, as defined in TS 102 034 4, clause 5.4.2. Specifically, this type shall be encoded as defined in clause 7.2, encapsulated as defined
