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    ETSI TS 102 770-2009 Digital Video Broadcasting (DVB) System Renewability Messages (SRM) in DVB Systems (V1 1 1)《数字视频广播(DVB) DVB系统中的系统可更新信息(SRM)(版本1 1 1)》.pdf

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    ETSI TS 102 770-2009 Digital Video Broadcasting (DVB) System Renewability Messages (SRM) in DVB Systems (V1 1 1)《数字视频广播(DVB) DVB系统中的系统可更新信息(SRM)(版本1 1 1)》.pdf

    1、 ETSI TS 102 770 V1.1.1 (2009-05)Technical Specification Digital Video Broadcasting (DVB);System Renewability Messages (SRM) in DVB SystemsEuropean Broadcasting Union Union Europenne de Radio-Tlvision EBUUER ETSI ETSI TS 102 770 V1.1.1 (2009-05)2Reference DTS/JTC-DVB-242 Keywords DIGITAL, DVB, TV ET

    2、SI 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 Individual copies of the present document can be

    3、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 is the Portable Document Format (PDF). In case of dispute, the refe

    4、rence 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. Information on the current status of this and other ETSI documents

    5、 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 No part may be reproduced except as authorized by written permissi

    6、on. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards Institute 2009. European Broadcasting Union 2009. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTM, TIPHONTM, the TIPHON logo and the ETSI logo are Trade Marks of ETSI registere

    7、d 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. LTE is a Trade Mark of ETSI currently being registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are

    8、Trade Marks registered and owned by the GSM Association. ETSI ETSI TS 102 770 V1.1.1 (2009-05)3Contents Intellectual Property Rights 4g3Foreword . 4g3Introduction 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32.2 Informative references 5g33 Abbreviations . 6g34 Locating System Renewabi

    9、lity Sreams 6g34.1 Overview 6g34.2 Service Description Table (SDT) Signalling 7g34.2.1 Locating SRM Services 7g34.2.2 Locating SRM Streams as Components of other services 7g34.3 Programme Map Table (PMT) Signalling 8g35 Transport of System Renewability Messages. 8g3History 9g3ETSI ETSI TS 102 770 V1

    10、.1.1 (2009-05)4Intellectual 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: “Intell

    11、ectual 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, no investi

    12、gation, 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 Technical Specific

    13、ation (TS) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comit Europen de Normalization ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was established in 1990 to co

    14、-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. The EBU is

    15、 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 headquarters is

    16、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 establish the fram

    17、ework 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 industry. I

    18、ntroduction More and more consumer multimedia devices are equipped with digital interfaces, enabling consumers to move content that they have acquired amongst devices they own for either consumption, archiving, conversion or similar purposes without any loss in quality. In response to the content ri

    19、ghts owners worries about uses of the content not in compliance with licences granted eased by those lossless, high quality interfaces, many consumer devices are being equipped with content protection and copy management (CPCM) technologies. One of the key elements of such systems is the field renew

    20、ability of important parts of such CPCM implementations in order to replace those elements which have been compromised and fail in further preventing undesired use of content. Those replacement information parts are conveyed to consumer equipment in the form of System Renewability Messages (SRM) eit

    21、her as part of the content on pre-recorded media or as part of broadcast information. The present document deals with the latter. ETSI ETSI TS 102 770 V1.1.1 (2009-05)51 Scope The present document defines mechanisms for locating and conveying System Renewability Messages (SRM) in DVB systems. Here,

    22、“System Renewability“ primarily refers to the renewal of typically non-volatile information relating to security functionalities including, but not limited to Conditional Access (CA) and Content Protection and Copy Management (CPCM). This characterization does however not preclude use of these mecha

    23、nisms for similar, but not security-related applications, provided that the receiver can unambiguously establish such alternate context. The syntax and semantics of SRM payloads are explicitly excluded from the present documents scope. They are defined and scoped by the originator of the messages. 2

    24、 References 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. Non-specific reference may be made only to a complete document or a part thereof and only in the follow

    25、ing cases: - if it is accepted that it will be possible to use 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:/do

    26、cbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. 2.1 Normative references The following referenced documents are indispensable for the application of the present document. For dated refer

    27、ences, only the edition cited applies. For non-specific references, the latest edition of the referenced document (including any amendments) applies. 1 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems“. 2 ISO/IEC 13818-1: “Information tech

    28、nology - Generic coding of moving pictures and associated audio information; Systems“. 3 ATSC A/98: “System Renewability Message Transport“, 3 January 2007. 4 ETSI TR 101 162: “Digital Video Broadcasting (DVB); Allocation of Service Information (SI) codes for DVB systems“. 2.2 Informative references

    29、 The following referenced documents are not essential to the use of the present document but they assist the user with regard to a particular subject area. For non-specific references, the latest version of the referenced document (including any amendments) applies. Not applicable. ETSI ETSI TS 102

    30、770 V1.1.1 (2009-05)63 Abbreviations For the purposes of the present document, the abbreviations given in 1, 2 and the following apply: SRM System Renewability Message ATSC Advanced Television Systems Committee NOTE: See http:/www.atsc.org/. CP Copy Protection DVB Digital Video Broadcasting Project

    31、NOTE: See http:/www.dvb.org/. PMT Program Map Table 2 SDT Service Description Table 1 SI Service Information 1 SRM PID Packet Identifier 2 carrying SRM data T-STD Transport System Target Decoder 2 4 Locating System Renewability Sreams 4.1 Overview For locating SRM streams from the SDT, the present d

    32、ocument defines two mechanisms. The first mechanism allows to locate a DVB Service the Components of which only convey SRM data. Consequently such a service shall be signalled as being of the type “SRM Service“. The second mechanism allows to locate a Component conveying SRM data and being part of a

    33、 DVB Service other than “SRM Service“ like for instance “Digital Television“. ETSI ETSI TS 102 770 V1.1.1 (2009-05)7Figure 1: Overview of the SRM stream location options 4.2 Service Description Table (SDT) Signalling 4.2.1 Locating SRM Services When all components of a DVB Service convey SRM data, t

    34、he service_descriptor describing this Service in the SDT shall bear a service_type of 0x08 (SRM Service 1). In the service descriptor loop of the SDT containing said service_descriptor, at least one CP_identifier_descriptor 1 shall be present, indicating the CP_system_ids 4 for which SRMs are carrie

    35、d in the components making up the service. The CP_identifier_descriptor shall convey all the CP_system_ids for which one or more components of the service carry SRMs. SRMs for which CP_system_ids are carried in which of the components can be inferred from processing the CP_descriptors in the ES_info

    36、 loop of the services PMT as described in clause 4.3. 4.2.2 Locating SRM Streams as Components of other services When only a few of the components of a DVB Service convey SRM data, the service_descriptor describing this Service in the SDT shall bear a service_type as defined by 1 but may use a value

    37、 other than 0x08 (SRM Service 1). In the service descriptor loop of the SDT containing said service_descriptor, at least one component_descriptor 1 shall be present bearing stream_content/component_type values of 0x08/0x01 (SRM Data 1) designating the components as carrying SRMs. ETSI ETSI TS 102 77

    38、0 V1.1.1 (2009-05)8SRMs for which CP_system_ids are carried in which of the components can be inferred from processing the CP_descriptors in the ES_info loops carrying stream_identifier_descriptors with matching component_tag values in the services PMT as described in clause 4.3. 4.3 Programme Map T

    39、able (PMT) Signalling In the ES_info loop describing a SRM component, one or more CP_descriptors 1 shall be conveyed indicating the CP_system_ids 4 for which SRMs are carried in the component. The stream_type field for SRM components shall be set to 0x05 (ISO/IEC 13818-1 Private Sections 2). NOTE: T

    40、his enables SRMs from several CP systems to be carried in the same component as well as carrying SRMs from several CP systems in a separate component, or any combination thereof. 5 Transport of System Renewability Messages The SRM shall be carried in System renewability message sections as specified in ATSC A/98 3, clause 4. The Transport System Target Decoder (T-STD) model for SRM transport is defined by ATSC A/98 3, clause 6. ETSI ETSI TS 102 770 V1.1.1 (2009-05)9History Document history V1.1.1 May 2009 Publication


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