1、 ETSI TS 103 615 V1.1.1 (2018-08) Digital Video Broadcasting (DVB); Metadata generation and deterministic DVB-T-mega-frame/DVB-T2-MI stream generation from MPEG-2 Transport Stream(s) for a DVB Single Illumination System (DVB-SIS) TECHNICAL SPECIFICATION ETSI ETSI TS 103 615 V1.1.1 (2018-08)2 Referen
2、ce DTS/JTC-DVB-381 Keywords audio, broadcasting, data, digital, DVB, hybrid, mimo, MPEG, radio, satellite, terrestrial, 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 n
3、on 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 versions o
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9、ogo are trademarks registered and owned by the GSM Association. ETSI ETSI TS 103 615 V1.1.1 (2018-08)3 Contents Intellectual Property Rights 6g3Foreword . 6g3Modal verbs terminology 6g31 Scope 7g32 References 7g32.1 Normative references . 7g32.2 Informative references 8g33 Definitions, symbols and a
10、bbreviations . 8g33.1 Definitions 8g33.2 Symbols 10g33.3 Abbreviations . 11g34 DVB Single Illumination System definition 12g34.1 System overview and architecture 12g34.2 Clock referencing throughout the DSA chain 14g34.3 Mechanism to hide SIS-specific services away from direct reception by consumer
11、receivers . 14g35 Specification of Parent Signals . 15g35.1 Overview 15g35.2 Service Information (PSI/SI) 18g35.3 SIS Services carrying PCRabs. 19g35.4 Layer 1 signalling . 19g35.4.1 DVB-T2 case 19g35.4.2 DVB-T case 19g35.5 Other T2-MI packet types (DVB-T2 case) . 19g35.6 Framing Essential, or poten
12、tially 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/). Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No
13、 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. Trademarks The present document may include trademarks and/or tradenames which are asserted and/
14、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/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI o
15、f products, services or organizations associated with those trademarks. Foreword This Technical 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 Telec
16、ommunications Standards Institute (ETSI). NOTE: The EBU/ETSI JTC Broadcast was established in 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
17、also CENELEC, which is responsible for the standardization of radio and television receivers. 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.
18、The EBU has active members in about 60 countries in the European broadcasting area; its headquarters is in Geneva. European Broadcasting Union CH-1218 GRAND SACONNEX (Geneva) Switzerland Tel: +41 22 717 21 11 Fax: +41 22 717 24 81 g3The Digital Video Broadcasting Project (DVB) is an industry-led con
19、sortium of broadcasters, manufacturers, network operators, software developers, regulatory bodies, content owners and others committed to designing global standards for the delivery of digital television and data services. DVB fosters market driven solutions that meet the needs and economic circumst
20、ances of broadcast industry stakeholders and consumers. DVB standards cover all aspects of digital television from transmission through interfacing, conditional access and interactivity for digital video, audio and data. The consortium came together in 1993 to provide global standardisation, interop
21、erability and future proof specifications. 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 express
22、ion of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 103 615 V1.1.1 (2018-08)7 1 Scope The present document describes the Single Illumination System, which allows to deliver Parent Signals for direct reception by consumer re
23、ceivers and, at the same time, for a deterministic generation of daughter streams for terrestrial retransmission. Parent Signals can be provided to the daughter site via all defined TS-based DVB means - be it satellite, cable or terrestrial. Metadata may be provided as part of the Parent Signal(s) (
24、called “in-band“ in the present document). Part of the metadata may also be provided “out-of-band“. A typical use case is described by the present document and is based on satellite broadcast signals on parent side - be it DVB-S (ETSI EN 300 421 8), -S2 (ETSI EN 302 307-1 9) or -S2X signals (ETSI EN
25、 302 307-2 10) - that are addressing consumer Direct-to-Home (DTH) receivers and terrestrial transmitters on daughter side in parallel. For terrestrial retransmission of the whole or partial content, the DTH signal(s) of MPEG-2 TS format (ISO/IEC 13818-1 5) from one or several satellites can be used
26、 and services and service components can be selected according to terrestrial broadcasters needs. Also other non-satellite Parent Signals and out-of-band metadata feeds can be integrated into the preparation of the terrestrial DVB-T2, ETSI EN 302 755 2, and/or DVB-T, ETSI EN 300 744 3 signals on dau
27、ghter site. Single Frequency Networks (SFN) operation of the terrestrial networks driven by the Single Illumination System is enabled. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For
28、 specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which are not found to be publicly available in the expected location might be found at http:/docbox.etsi.org/Refe
29、rence. NOTE: While any hyperlinks included in this clause were valid at the time of publication ETSI cannot guarantee their long term validity. The following referenced documents are necessary for the application of the present document. 1 ETSI TS 102 773: “Digital Video Broadcasting (DVB); Modulato
30、r Interface (T2-MI) for a second generation digital terrestrial television broadcasting system (DVB-T2)“. 2 ETSI EN 302 755: “Digital Video Broadcasting (DVB); Frame structure channel coding and modulation for a second generation digital terrestrial television broadcasting system (DVB-T2)“. 3 ETSI E
31、N 300 744: “Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for digital terrestrial television“. 4 ETSI TS 101 191: “Digital Video Broadcasting (DVB); DVB mega-frame for Single Frequency Network (SFN) synchronization“. 5 ISO/IEC 13818-1: “Information technology - G
32、eneric coding of moving pictures and associated audio information: Systems“. 6 ETSI EN 300 468: “Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems“. 7 ETSI TS 102 034: “Digital Video Broadcasting (DVB); Transport of MPEG-2 TS Based DVB Services over IP Based
33、 Networks“. 8 ETSI EN 300 421: “Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for 11/12 GHz satellite services“. 9 ETSI EN 302 307-1: “Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, I
34、nteractive Services, News Gathering and other broadband satellite applications; Part 1: DVB-S2“. ETSI ETSI TS 103 615 V1.1.1 (2018-08)8 10 ETSI EN 302 307-2: “Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Se
35、rvices, News Gathering and other broadband satellite applications; Part 2: DVB-S2 Extensions (DVB-S2X)“. 11 IETF RFC 3629 (STD 63) (November 2003): “UTF-8, a transformation format of ISO 10646“, F. Yergeau. NOTE: Available at https:/www.rfc-editor.org/info/rfc3629. 12 IETF RFC 1952: “GZIP file forma
36、t specification version 4.3“, May 1996. NOTE: Available at: https:/www.rfc-editor.org/info/rfc1952. 2.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version a
37、pplies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are not
38、necessary for the application of the present document but they assist the user with regard to a particular subject area. Not applicable. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: control stream genera
39、tor: device that generates metadata - namely Framing and Timing information (F for further details see ETSI EN 300 744 3 for DVB-T and ETSI EN 302 755 2 for DVB-T2. layer 2 signalling: equivalent to PSI/SI - see ISO/IEC 13818-1 5 and ETSI EN 300 468 6, respectively - since the present document cover
40、s Transport Streams (ISO/IEC 13818-1 5) only, layer 2 metadata that describes the service configuration of the tuned and optionally of other multiplexes mode adaptation: applicable to DVB-T2 only: the mode adaptation modules, which operate separately on the contents of each PLP, slice the input data
41、 stream into data fields which, after stream adaptation, will form baseband frames (BBFRAMEs), see also ETSI EN 302 755 2 out-of-band: not part of any of the Parent Signals, but provided to the DSA by other means parent network: any DVB- and TS-based delivery network carrying the parent signal. This
42、 can be a satellite, cable or terrestrial network parent signal: transport Stream present at the DSA input providing some or all the services used to build the output DTT stream NOTE: There may be one or several Parent Signal(s) contributing to the output DTT stream (T2-MI stream or stream of T-mega
43、-frames). Each Parent Signal consists of a time reference of the SIS system clock (PCRabs). PCR_base: 90 kHz clock primary sis service: primary SIS service (one per terrestrial output/per current_DSA_group_id) consists of the listed mandatory elements and can consist of the listed optional elements:
44、 PCRabsusing the transport packet adaptation mechanism (see ISO/IEC 13818-1 5) on a PID that is designated as the PCR_PID in the PMT (mandatory) F and after being processed as specified in clause 6, results in a T2-MI or T-MF stream at interface L that is compliant to ETSI TS 102 773 1, ETSI EN 302
45、755 2, ETSI EN 300 744 3, ETSI TS 101 191 4, ISO/IEC 13818-1 5 and ETSI EN 300 468 6. ETSI ETSI TS 103 615 V1.1.1 (2018-08)14 4.2 Clock referencing throughout the DSA chain The starting point for all the DSAs is the set of TSs received from the Parent Network(s). Every packet of every TS has an asso
46、ciated PCRabsvalue; this value is carried in ordinary PCRs in the special “SIS Service“ and values for packets within the same parent TS not carrying such a PCR are interpolated according to a deterministic formula, see clause 6.3.1.2 (arrival timestamping). The output TS of the TS multiplexer locat
47、ed inside the DSA, see figures 5 and 6 in clause 6.1, is based on a “Reference TS“ generated (conceptually) by the DSA. This TS also has a PCRabsvalue associated with each packet; some of these (i.e. one per physical layer frame) are signalled in the F if present, these tables shall be part of SIS S
48、ervices). Services addressing DSAs only, e.g. sheer terrestrial services. SIS-specific settings of parameters in certain PSI/SI tables: SIS Services: - PAT of the Parent Signal: The SIS Service (one per Parent Signal) is listed in the PAT as all “visible“ services that address consumer receivers dir
49、ectly. - PMT: stream_type 0616(ISO/IEC 13818-1 5 PES packets containing private data), see ISO/IEC 13818-1 5, is assigned to all SIS-specific metadata. A data_broadcast_id_descriptor is inserted consisting of a data_broadcast_id set to 00E16referring to the present document and id_selector_byte settings depending on the metadata present: g131 F u IETF RFC 3629 11 5.7.3.1.3 Definition of XML elements and XML types current_DSA_group_id: Indicates the group of DSAs this DSACI parameter set, i.e.
