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Digital Video Broadcasting (DVB); Specification for Service Information (SI) in DVB systems DVB Document A38 January 2011 3 Contents Intellectual Property Rights ................................................................................................................................ 6   Foreword............................................................................................................................................................. 6   1 Scope ........................................................................................................................................................ 7   2 References ................................................................................................................................................ 7   2.1 Normative references ......................................................................................................................................... 7   2.2 Informative references ..................................................................................................................................... 10   3 Definitions and abbreviations................................................................................................................. 10   3.1 Definitions ....................................................................................................................................................... 10   3.2 Abbreviations ................................................................................................................................................... 13   4 Service Information (SI) description ...................................................................................................... 14   5 Service Information (SI) tables .............................................................................................................. 16   5.1 SI table mechanism .......................................................................................................................................... 16   5.1.1 Explanation ................................................................................................................................................ 17   5.1.2 Mapping of sections into Transport Stream (TS) packets .......................................................................... 17   5.1.3 Coding of PID and table_id fields .............................................................................................................. 18   5.1.4 Repetition rates and random access ............................................................................................................ 19   5.1.5 Scrambling ................................................................................................................................................. 19   5.2 Table definitions .............................................................................................................................................. 19   5.2.1 Network Information Table (NIT) ............................................................................................................. 19   5.2.2 Bouquet Association Table (BAT) ............................................................................................................. 21   5.2.3 Service Description Table (SDT) ............................................................................................................... 22   5.2.4 Event Information Table (EIT)................................................................................................................... 24   5.2.5 Time and Date Table (TDT)....................................................................................................................... 26   5.2.6 Time Offset Table (TOT) ........................................................................................................................... 27   5.2.7 Running Status Table (RST) ...................................................................................................................... 27   5.2.8 Stuffing Table (ST) .................................................................................................................................... 28   5.2.9 Discontinuity Information Table (DIT) ...................................................................................................... 29   5.2.10 Selection Information Table (SIT) ............................................................................................................. 29   6 Descriptors ............................................................................................................................................. 29   6.1 Descriptor identification and location .............................................................................................................. 29   6.2 Descriptor coding............................................................................................................................................. 31   6.2.1 Adaptation field data descriptor ................................................................................................................. 31   6.2.2 Ancillary data descriptor ............................................................................................................................ 31   6.2.3 Announcement support descriptor.............................................................................................................. 32   6.2.4 Bouquet name descriptor ............................................................................................................................ 34   6.2.5 CA identifier descriptor .............................................................................................................................. 34   6.2.6 Cell frequency link descriptor .................................................................................................................... 34   6.2.7 Cell list descriptor ...................................................................................................................................... 35   6.2.8 Component descriptor ................................................................................................................................ 37   6.2.9 Content descriptor ...................................................................................................................................... 39   6.2.10 Country availability descriptor ................................................................................................................... 41   6.2.11 Data broadcast descriptor ........................................................................................................................... 42   6.2.12 Data broadcast id descriptor ....................................................................................................................... 43   6.2.13 Delivery system descriptors ....................................................................................................................... 43   6.2.13.1 Cable delivery system descriptor .......................................................................................................... 43   6.2.13.2 Satellite delivery system descriptor ...................................................................................................... 45   6.2.13.3 S2 satellite delivery system descriptor ................................................................................................. 46   6.2.13.4 Terrestrial delivery system descriptor .................................................................................................. 47   6.2.14 DSNG descriptor ........................................................................................................................................ 49   6.2.15 Extended event descriptor .......................................................................................................................... 49   6.2.16 Extension descriptor ................................................................................................................................... 51   6.2.17 Frequency list descriptor ............................................................................................................................ 51   6.2.18 FTA content management descriptor ......................................................................................................... 52   6.2.18.1 Scope of FTA content management descriptor ..................................................................................... 54   BlueBook A38 4 6.2.19 Linkage descriptor ...................................................................................................................................... 54   6.2.20 Local time offset descriptor ........................................................................................................................ 57   6.2.21 Mosaic descriptor ....................................................................................................................................... 58   6.2.22 Multilingual bouquet name descriptor ....................................................................................................... 60   6.2.23 Multilingual component descriptor ............................................................................................................ 61   6.2.24 Multilingual network name descriptor ....................................................................................................... 62   6.2.25 Multilingual service name descriptor ......................................................................................................... 62   6.2.26 Near Video On Demand (NVOD) reference descriptor ............................................................................. 63   6.2.27 Network name descriptor ........................................................................................................................... 64   6.2.28 Parental rating descriptor ........................................................................................................................... 64   6.2.29 Partial Transport Stream (TS) descriptor ................................................................................................... 64   6.2.30 PDC descriptor ........................................................................................................................................... 65   6.2.31 Private data specifier descriptor ................................................................................................................. 65   6.2.32 Scrambling descriptor ................................................................................................................................ 65   6.2.33 Service descriptor ....................................................................................................................................... 66   6.2.34 Service availability descriptor .................................................................................................................... 67   6.2.35 Service list descriptor ................................................................................................................................. 68   6.2.36 Service move descriptor ............................................................................................................................. 68   6.2.37 Short event descriptor................................................................................................................................. 69   6.2.38 Short smoothing buffer descriptor .............................................................................................................. 69   6.2.39 Stream identifier descriptor ........................................................................................................................ 71   6.2.40 Stuffing descriptor ...................................................................................................................................... 71   6.2.41 Subtitling descriptor ................................................................................................................................... 72   6.2.42 Telephone descriptor .................................................................................................................................. 72   6.2.43 Teletext descriptor ...................................................................................................................................... 74   6.2.44 Time shifted event descriptor ..................................................................................................................... 75   6.2.45 Time shifted service descriptor .................................................................................................................. 75   6.2.46 Transport stream descriptor ........................................................................................................................ 75   6.2.47 VBI data descriptor .................................................................................................................................... 76   6.2.48 VBI teletext descriptor ............................................................................................................................... 77   6.3 Extended descriptor identification and location ............................................................................................... 77   6.4 Extended descriptor coding.............................................................................................................................. 78   6.4.1 CP descriptor .............................................................................................................................................. 78   6.4.2 CP identifier descriptor .............................................................................................................................. 78   6.4.3 Image Icon descriptor ................................................................................................................................. 79   7 Storage Media Interoperability (SMI) measures .................................................................................... 81   7.1 SMI tables ........................................................................................................................................................ 81   7.1.1 Discontinuity Information Table (DIT) ...................................................................................................... 82   7.1.2 Selection Information Table (SIT) ............................................................................................................. 83   7.2 SMI descriptors ................................................................................................................................................ 84   7.2.1 Partial Transport Stream (TS) descriptor ................................................................................................... 84   A nnex A (normative): Coding of text characters .............................................................................. 85   A.1 Control codes ......................................................................................................................................... 85   A.2 Selection of character table .................................................................................................................... 85   A nnex B (normative): C R C decoder model ....................................................................................... 98   A nnex C (informative): Conversion between time and date conventions ......................................... 99   A nnex D (informative): Service information implementation of A C-3 and Enhanced A C-3 audio in D V B systems .................................................................................. 101   D.1 AC-3 component types ......................................................................................................................... 101   D.2 AC-3 Descriptor ................................................................................................................................... 102   D.3 AC-3 Descriptor Syntax ....................................................................................................................... 102   D.3.1 Semantics for the AC-3 descriptor ................................................................................................................. 102   D.4 Enhanced_AC-3 Descriptor ................................................................................................................. 103   BlueBook A38 5 D.5 Enhanced_AC-3 Descriptor Syntax ..................................................................................................... 103   D.5.1 Semantics for the Enhanced AC-3 descriptor ................................................................................................ 104   A nnex E (normative): Usage of the Scrambling_descriptor .......................................................... 106   A nnex F (informative): ISO 639 L anguage Descriptor for " original audio " Soundtrack ............ 107   A nnex G (informative): Service information implementation of D TS coded audio in D V B systems .......................................................................................................... 108   G.1 DTS Audio descriptor .......................................................................................................................... 108   G.2 DTS Descriptor Syntax ........................................................................................................................ 108   G.2.1 Semantics for the DTS descriptor .................................................................................................................. 108   A nnex H (informative): Service information implementation of H E-A A C coded audio in D V B systems .......................................................................................................... 111   H.1 AAC Audio descriptor ......................................................................................................................... 111   H.2 AAC_Descriptor Syntax ...................................................................................................................... 111   H.2.1 Semantics for the AAC descriptor ................................................................................................................. 111   A nnex I (normative): Assignment and interpretation of the service_type field .......................... 113   I.1 Background .................................................................................................................................................... 113   I.2 Assignment of service_type ........................................................................................................................... 113   I.2.1 service_type "digital television service" (0x01) ....................................................................................... 113   I.2.2 service_type "advanced codec" (various) ................................................................................................. 114   A nnex J (informative): Bibliography ................................................................................................. 115   History ............................................................................................................................................................ 116   BlueBook A38 6 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 E TSI members 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 (http://webapp.etsi.org/IPR/home.asp). 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 present document. Foreword This European Standard (Telecommunications series) has been produced by Joint Technical Committee (JTC) Broadcast of the European Broadcasting Union (EBU), Comité Européen de Normalisation ELECtrotechnique (CENELEC) and the European Telecommunications Standards Institute (ETSI), and is now submitted for the ETSI standards One-step Approval Procedure. 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 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. 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 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 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. Proposed national transposition dates Date of latest announcement of this EN (doa): 3 months after ETSI publication Date of latest publication of new National Standard or endorsement of this EN (dop/e): 6 months after doa Date of withdrawal of any conflicting National Standard (dow): 6 months after doa BlueBook A38 7 BlueBook A38 8 1 Scope The present document specifies the Service Information (SI) data which forms a part of DVB bitstreams, in order that the user can be provided with information to assist in selection of services and/or events within the bitstream, and so that the Integrated Receiver Decoder (IRD) can automatically configure itself for the selected service. SI data for automatic configuration is mostly specified within ISO/IEC 13818-1 [18] as Program Specific Information (PSI). The present document specifies additional data which complements the PSI by providing data to aid automatic tuning of IRDs, and additional information intended for display to the user. The manner of presentation of the information is not specified in the present document, and IRD manufacturers have freedom to choose appropriate presentation methods. It is expected that Electronic Programme Guides (EPGs) will be a feature of Digital TV transmissions. The definition of an EPG is outside the scope of the present document (i.e. the SI specification), but the data contained within the SI specified in the present document may be used as the basis for an EPG. Rules of operation for the implementation of the present document are specified in TS 101 211 [i.2]. 2 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 referencemay 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 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, information 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 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. BlueBook A38 9 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 EN 300 231: "Television systems; Specification of the domestic video Programme Delivery Control system (PDC)". [2] ETSI EN 300 401: "Radio Broadcasting Systems; Digital Audio Broadcasting (DAB) to mobile, portable and fixed receivers". [3] ETSI EN 300 706: "Enhanced Teletext specification". [4] ETSI EN 301 192: "Digital Video Broadcasting (DVB); DVB specification for data broadcasting". [5] ETSI EN 301 210: "Digital Video Broadcasting (DVB); Framing structure, channel coding and modulation for Digital Satellite News Gathering (DSNG) and other contribution applications by satellite". [6] ETSI EN 301 775: "Digital Video Broadcasting (DVB); Specification for the carriage of Vertical Blanking Information (VBI) data in DVB bitstreams". [7] ETSI EN 301 790: "Digital Video Broadcasting (DVB); Interaction channel for satellite distribution systems". [8] ETSI EN 302 307: "Digital Video Broadcasting (DVB); Second generation framing structure, channel coding and modulation systems for Broadcasting, Interactive Services, News Gathering and other broadband satellite applications". [9] ETSI TS 101 154: "Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in Broadcasting Applications based on the MPEG-2 Transport Stream". [10] ETSI TS 102 005: "Digital Video Broadcasting (DVB); Specification for the use of Video and Audio Coding in DVB services delivered directly over IP protocols". [11] ETSI TS 102 006: "Digital Video Broadcasting (DVB); Specification for System Software Update in DVB Systems". [12] ETSI TS 102 114: "DTS Coherent Acoustics; Core and Extensions". [13] ETSI TS 102 323: "Digital Video Broadcasting (DVB); Carriage and signalling of TV-Anytime information in DVB transport streams". [14] ETSI TS 102 366: "Digital Audio Compression (AC-3, Enhanced AC-3) Standard". [15] ETSI TS 102 812: "Digital Video Broadcasting (DVB); Multimedia Home Platform (MHP) Specification 1.1.1". [16] ISO/IEC 10646 (2003): "Information technology - Universal Multiple-Octet Coded Character Set (UCS)". BlueBook A38 10 [17] ISO/IEC 11172-3: "Information technology - Coding of moving pictures and associated audio for digital storage media at up to about 1,5 Mbit/s - Part 3: Audio". [18] ISO/IEC 13818-1: "Information technology - Generic coding of moving pictures and associated audio information: Systems". [19] ISO/IEC 13818-2: "Information technology - Generic coding of moving pictures and associated audio information: Video". [20] ISO/IEC 13818-3: "Information technology - Generic coding of moving pictures and associated audio information - Part 3: Audio". [21] ISO/IEC 14496-3 (2005): "Information technology - Coding of audio- visual objects - Part 3: Audio". [22] ISO/IEC 6937: "Information technology - Coded graphic character set for text communication - Latin alphabet". [23] ISO/IEC 8859-1: "Information technology - 8-bit single-byte coded graphic character sets - Part 1: Latin alphabet No. 1". [24] ISO/IEC 8859-2: "Information technology - 8-bit single-byte coded graphic character sets - Part 2: Latin alphabet No. 2". [25] ISO/IEC 8859-3: "Information technology - 8-bit single-byte coded graphic character sets - Part 3: Latin alphabet No. 3". [26] ISO/IEC 8859-4: "Information technology - 8-bit single-byte coded graphic character sets - Part 4: Latin alphabet No. 4". [27] ISO/IEC 8859-5: "Information technology - 8-bit single-byte coded graphic character sets - Part 5: Latin/Cyrillic alphabet". [28] ISO/IEC 8859-6: "Information technology - 8-bit single-byte coded graphic character sets - Part 6: Latin/Arabic alphabet". [29] ISO/IEC 8859-7: "Information technology - 8-bit single-byte coded graphic character sets - Part 7: Latin/Greek alphabet". [30] ISO/IEC 8859-8: "Information technology - 8-bit single-byte coded graphic character sets - Part 8: Latin/Hebrew alphabet". [31] ISO/IEC 8859-9: "Information technology - 8-bit single-byte coded graphic character sets - Part 9: Latin alphabet No. 5". [32] ISO/IEC 8859-10: "Information technology - 8-bit single-byte coded graphic character sets - Part 10: Latin alphabet No. 6". [33] ISO/IEC 8859-11: "Information technology - 8-bit single-byte coded graphic character sets - Part 11: Latin/Thai alphabet". [34] ISO/IEC 8859-13: "Information technology - 8-bit single-byte coded graphic character sets - Part 13: Latin alphabet No. 7". [35] ISO/IEC 8859-14: "Information technology - 8-bit single-byte coded graphic character sets - Part 14: Latin alphabet No. 8 (Celtic)". BlueBook A38 11 [36] ISO/IEC 8859-15: "Information technology - 8-bit single-byte coded graphic character sets - Part 15: Latin alphabet No. 9". [37] CENELEC EN 50221: "Common interface specification for conditional access and other digital video broadcasting decoder applications". [38] IEC 61883 (parts 1 and 4): "Consumer audio/video equipment - Digital interface". [39] IEEE 1394.1: "IEEE Standard for High Performance Serial Bus Bridges". [40] ISO 8601: "Data elements and interchange formats - Information interchange - Representation of dates and times". [41] ISO 3166 (all parts): "Codes for the representation of names of countries and their subdivisions". [42] ISO 639-2: "Codes for the representation of names of languages - Part 2: Alpha-3 code". [43] ITU-R Recommendation BS.1196-1 (annex 2): "Audio coding for digital terrestrial television broadcasting". NOTE: Annex 2 contains additional information on the AC-3 audio encoding algorithm and decoding requirements, relevant to the present document. Appendix 1 to annex 2 of this Recommendation should be disregarded as it is not applicable to the present document. [44] KSX1001: "Code for Information Interchange (Hangeul and Hanja)", Korean Agency for Technology and Standards, Ref. No. KSX 1001-2004. NOTE: Available athttp://unicode.org/Public//MAPPINGS/OBSOLETE/EASTASIA/KSC/KSX1001.TX T. [45] ETSI ES 201 812: "Digital Video Broadcasting (DVB); Multimedia Home Platform (MHP) Specification 1.0.3". [46] ETSI TS 102 825 (parts 1 to 5, 7, 9 and 10): "Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM)". [47] 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)". [48] void [49] ETSI TS 102 770 [50] channel coding and modulation for Satellite Services to Handheld devices (SH) [51] - Protocol Encapsulation - inter- [52] Multipurpose Internet Mail Extensions (MIME) Part One:Format of BlueBook A38 12 [53] ETSI EN 302 769 Digital Video Broadcasting (DVB);Frame structure channel coding and modulation for a second generation digital transmission system for cable systems (DVB-C2) [54] Digital Video Broadcasting (DVB);Guidelines on Frame Compatible 3D-TV 2.2 Informative references 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. [i.1] ETSI TS 101 162: "Digital Video Broadcasting (DVB); Allocation of Service Information (SI) codes for DVB systems". [i.2] ETSI TS 101 211: "Digital Video Broadcasting (DVB); Guidelines on implementation and usage of Service Information (SI)". [i.3] ETSI TS 102 590: "Digital Video Broadcasting (DVB); Mulimedia Home Platform 1.2". [i.4] ETSI TR 102 825 (parts 6, 8, 11 to 13): "Digital Video Broadcasting (DVB); Content Protection and Copy Management (DVB-CPCM)". [i.5] ETSI TS 102 201: "Digital Video Broadcasting (DVB); Interfaces for DVB Integrated Receiver Decoder (DVB-IRD)" 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: A C-3: refers to the coding of audio using the Dolby AC-3 method NOTE: The Service Information requirements for AC-3 streams carried in DVB systems are described in annex D. The carriage of AC-3 elementary streams as private data within MPEG systems is described in annex C of TS 101 154 [9]. bouquet: collection of services marketed as a single entity broadcaster (SE R V I C E Provider): organization which assembles a sequence of events or programmes to be delivered to the viewer based upon a schedule cell: geographical area that is covered with DVB-T signals delivering one or more particular transport streams throughout the area by means of one or more transmitters NOTE: The cell may in addition contain repeaters. Two neighbouring cells may be intersecting or fully overlapping. The cell_id that is used to uniquely identify a cell is unique within each original_network_id. For hand-over purposes it is more convenient if the transport streams associated with the cell cover exactly the same area, or only one transport stream per cell is used. component (E L E M E N T A R Y Stream): one or more entities which together make up an event BlueBook A38 13 EXAMPLE: Video, audio, teletext. Conditional A ccess (C A) system: system to control subscriber access to services, programmes and events EXAMPLE: Videoguard, Eurocrypt. delivery system: physical medium by which one or more multiplexes are transmitted EXAMPLE: Satellite system, wide-band coaxial cable, fibre optics, terrestrial channel of one emitting point. E ntitlement M anagement Messages (E M M): private Conditional Access information which specify the authorization levels or the services of specific decoders NOTE: They may be addressed to individual decoder or groups of decoders. event: grouping of elementary broadcast data streams 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. forbidden: when used in the clauses defining the coded bit stream, indicates that the value shall never be used M PE G-2: See ISO/IEC 13818. NOTE: Systems coding is defined in part 1 [18]. Video coding is defined in part 2 [19]. Audio coding is defined in part 3 [20]. multiplex: stream of all the digital data carrying one or more services within a single physical channel networ k : collection of MPEG-2 Transport Stream (TS) multiplexes transmitted on a single delivery system EXAMPLE: All digital channels on a specific cable system. n PS K : n-valued Phase Shift Keying (other than quaternary) original_networ k_id: unique identifier of a network programme: concatenation of one or more events under the control of a broadcaster e.g. news show, entertainment show repeater: equipment which receives and re-transmits a DVB-T signal NOTE: It can not change the TPS bits and thus the cell_id. reserved: when used in the clause defining the coded bit stream, indicates that the value may be used in the future for ISO defined extensions NOTE: Unless otherwise specified within the present document all "reserved" bits is set to "1". reserved_future_use: when used in the clause defining the coded bit stream, indicates that the value may be used in the future for ETSI defined extensions NOTE: Unless otherwise specified within the present document all "reserved_future_use" bits is set to "1". BlueBook A38 14 section: syntactic structure used for mapping all service information defined in EN 300 468 into ISO/IEC 13818-1 [18] TS packets service: sequence of programmes under the control of a broadcaster which can be broadcast as part of a schedule service_id: unique identifier of a service within a TS Service Information (SI): digital data describing the delivery system, content and scheduling/timing of broadcast data streams, etc. NOTE: It includes MPEG-2 PSI together with independently defined extensions. subcell: geographical area that is part of the cells coverage area and that is covered with DVB-T signals by means of a transposer NOTE: In conjunction with the cell_id the cell_id_extension is used to uniquely identify a subcell. sub_table: collection of sections with the same value of table_id and: for a NIT: the same table_id_extension (network_id) and version_number; for a BAT: the same table_id_extension (bouquet_id) and version_number; for a SDT: the same table_id_extension (transport_stream_id), the same original_network_id and version_number; for a EIT: the same table_id_extension (service_id), the same transport_stream_id, the same original_network_id and version_number. NOTE: The table_id_extension field is equivalent to the fourth and fifth byte of a section when the section_syntax_indicator is set to a value of "1". table: comprised of a number of sub_tables with the same value of table_id transmitter: equipment, that allows to modulate a baseband transport stream and to broadcast it on one frequency T ransport Stream (TS): data structure defined in ISO/IEC 13818-1 [18] NOTE: It is the basis of the DVB standards. transport_stream_id: unique identifier of a TS within an original network T ransposer: type of repeater which receives a DVB-T signal and re-transmits it on a different frequency The relationships of some of these definitions are illustrated in the service delivery model in figure 1. BlueBook A38 15 Figure 1: Digital broadcasting, service delivery model 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AAC Advanced Audio Coding NOTE: See TS 101 154 [9]. AC-3 Dolby AC-3 audio coding NOTE: See ITU-R Recommendation BS.1196-1 [43]. ASCII American Standard Code for Information Interchange BAT Bouquet Association Table BCD Binary Coded Decimal bslbf bit string, left bit first NOTE: The rightmost bit of a bslbf field is always referred to as b0. This will be the last bit of the field transmitted. CA Conditional Access CAT Conditional Access Table CLUT Colour Look-Up Table CPCM Content Protection Copy Management CRC Cyclic Redundancy Check BlueBook A38 16 CSA Common Scrambling Algorithm DAB Digital Audio Broadcasting DIT Discontinuity Information Table DSNG Digital Satellite News Gathering DTS Digital Theater Systems NOTE: See TS 102 114 [12]. DVB Digital Video Broadcasting DVD Digital Versatile Disc EBU European Broadcasting Union ECM Entitlement Control Message EIT Event Information Table EMM Entitlement Management Message EPG Electronic Programme Guide ES Elementary Stream FEC Forward Error Correction FTA Free-To-Air HD High Definition (Video) HE-AAC High Efficiency AAC HP High Priority IEC International Electrotechnical Commission INT IP Notification Table NOTE: See EN 301 192 [4]. IP Internet Protocol IRD Integrated Receiver Decoder ISO International Organization for Standardization LP Low Priority LSB Least Significant Bit MJD Modified Julian Date MPE Multiprotocol Encapsulation MPEG Moving Pictures Expert Group MSB Most Significant Bit NBC-BS Non Backwards Compatible Broadcast Services (DVB-S2) NDA Non Disclosure Agreement NIT Network Information Table NVOD Near Video On Demand OFDM Orthogonal Frequency Division Multiplex PAT Program Association Table paTS Partially available Transport Stream (DVB-SH) PCM Pulse-code modulation PDC Programme Delivery Control PID Packet IDentifier PIL Programme Identification Label PMT Program Map Table PSI Program Specific Information PSTN Public Switched Telephone Network QAM Quadrature Amplitude Modulation QPSK Quaternary Phase Shift Keying RAR Resolution Authority Record rpchof remainder polynomial coefficients, highest order first RDS Radio Data System BlueBook A38 17 RNT RAR Notification Table RS Reed-Solomon RST Running Status Table ScF Scale Factor SD Standard Definition (Video) SDT Service Description Table SI Service Information SIT Selection Information Table SMATV Satellite Master Antenna Television SMI Storage Media Interoperability SRM System Renewability Message ST Stuffing Table tcimsbf Two s complement integer, msb (sign) bit first TDT Time and Date Table TFS Time Frequency Slicing (DVB-T2) TOT Time Offset Table TPS Transmission Parameter Signalling TS Transport Stream TSDT Transport Stream Description Table TVA TV-Anytime NOTE: See http://www.tv-anytime.org UECP Universal Encoder Communication Protocol (RDS) uimsbf unsigned integer most significant bit first UTC Universal Time, Co-ordinated VBI Vertical Blanking Interval VPS Video Programme System WSS Wide Screen Signalling 4 Service Information (SI) description ISO/IEC 13818-1 [18] specifies SI which is referred to as PSI. The PSI data provides information to enable automatic configuration of the receiver to demultiplex and decode the various streams of programs within the multiplex. The PSI data is structured as four types of table. The tables are transmitted in sections. 1) Program Association Table (PAT): for each service in the multiplex, the PAT indicates the location (the Packet Identifier (PID) values of the Transport Stream (TS) packets) of the corresponding Program Map Table (PMT). It also gives the location of the Network Information Table (NIT). 2) Conditional Access Table (CAT): the CAT provides information on the CA systems used in the multiplex; the information is private (not defined within the present document) and dependent on the CA system, but includes the location of the EMM stream, when applicable. 3) Program Map Table (PMT): the PMT identifies and indicates the locations of the streams that make up each service, and the location of the Program Clock Reference fields for a service. BlueBook A38 18 4) Network Information Table (NIT): the location of the NIT is defined in the present document in compliance with ISO/IEC 13818-1 [18] specification, but the data format is outside the scope of ISO/IEC 13818-1 [18]. It is intended to provide information about the physical network. The syntax and semantics of the NIT are defined in the present document. In addition to the PSI, data is needed to provide identification of services and events for the user. The coding of this data is defined in the present document. In contrast with the PAT, CAT, and PMT of the PSI, which give information only for the multiplex in which they are contained (the actual multiplex), the additional information defined within the present document can also provide information on services and events carried by different multiplexes, and even on other networks. This data is structured as nine tables: 1) Bouquet Association Table (BAT): the BAT provides information regarding bouquets. As well as giving the name of the bouquet, it provides a list of services for each bouquet. 2) Service Description Table (SDT): the SDT contains data describing the services in the system e.g. names of services, theservice provider, etc. 3) Event Information Table (EIT): the EIT contains data concerning events or programmes such as event name, start time, duration, etc.; the use of different descriptors allows the transmission of different kinds of event information e.g. for different service types. 4) Running Status Table (RST): the RST gives the status of an event (running/not running). The RST updates this information and allows timely automatic switching to events. 5) Time and Date Table (TDT): the TDT gives information relating to the present time and date. This information is given in a separate table due to the frequent updating of this information. 6) Time Offset Table (TOT): the TOT gives information relating to the present time and date and local time offset. This information is given in a separate table due to the frequent updating of the time information. 7) Stuffing Table (ST): the ST is used to invalidate existing sections, for example at delivery system boundaries. 8) Selection Information Table (SIT): the SIT is used only in "partial" (i.e. recorded) bitstreams. It carries a summary of the SI information required to describe the streams in the partial bitstream. BlueBook A38 19 9) Discontinuity Information Table (DIT) the DIT is used only in "partial" (i.e. recorded) bitstreams. It is inserted where the SI information in the partial bitstream may be discontinuous. Where applicable the use of descriptors allows a flexible approach to the organization of the tables and allows for future compatible extensions. Figure 2: General organization of the Service Information (SI) 5 Service Information (SI) tables 5.1 SI table mechanism The SI specified in the present document and MPEG-2 PSI tables shall be segmented into one or more sections before being inserted into TS packets. The tables listed in clause 4 are conceptual in that they need never be regenerated in a specified form within an IRD. The tables, when transmitted shall not be scrambled, with the exception of the EIT, which may be scrambled if required (see clause 5.1.5). A section is a syntactic structure that shall be used for mapping all MPEG-2 tables and SI tables specified in the present document, into TS packets. These SI syntactic structures conform to the private section syntax defined in ISO/IEC 13818-1 [18]. BlueBook A38 20 5.1.1 Explanation Sections may be variable in length. The sections within each table are limited to 1 024 bytes in length, except for sections within the EIT which are limited to 4 096 bytes. Each section is uniquely identified by the combination of the following elements: a) table_id: The table_id identifies to which table the section belongs. Some table_ids have been defined by ISO and others by ETSI. Other values of the table_id can be allocated by the user for private purposes. The list of values of table_id is contained in table 2. b) table_id_extension: The table_id_extension is used for identification of a sub_table. The interpretation of each sub_table is given in clause 5.2. c) section_number: The section_number field allows the sections of a particular sub_table to be reassembled in their original order by the decoder. It is recommended, that sections are transmitted in numerical order, unless it is desired to transmit some sections of the sub_table more frequently than others, e.g. due to random access considerations. For the SI tables as specified in the present document, section numbering applies to sub_tables. d) version_number: When the characteristics of the TS described in the SI given in the present document change (e.g. new events start, different composition of elementary streams for a given service), then new SI data shall be sent containing the updated information. A new version of the SI data is signalled by sending a sub_table with the same identifiers as the previous sub_table containing the relevant data, but with the next value of version_number. For the SI tables specified in the present document, the version_number applies to all sections of a sub_table. e) Current_next_indicator: Each section shall be numbered as valid "now" (current), or as valid in the immediate future (next). This allows the transmission of a future version of the SI in advance of the change, giving the decoder the opportunity to prepare for the change. There is however, no requirement to transmit the next version of a section in advance, but if it is transmitted, then it shall be the next correct version of that section. 5.1.2 Mapping of sections into Transport Stream (TS) packets Sections shall be mapped directly into TS packets. Sections may start at the beginning of the payload of a TS packet, but this is not a requirement, because the start of the first section in the payload of a TS packet is pointed to by the pointer_field. There is never more than one pointer_field in a TS packet, as the start of any other section can be identified by counting the length of the first and any subsequent sections, since no gaps between sections within a TS packet are allowed by the syntax. BlueBook A38 21 Within TS packets of any single PID value, one section is finished before the next one is allowed to be started, or else it is not possible to identify to which section header the data belongs. If a section finishes before the end of a TS packet, but it is not convenient to open another section, a stuffing mechanism may be used to fill up the space. Stuffing may be performed by filling each remaining byte of the TS packet with the value "0xFF". Consequently the value "0xFF" shall not be used for the table_id. If the byte immediately following the last byte of a section takes the value of "0xFF", then the rest of the TS packet shall be stuffed with "0xFF" bytes. These bytes may be discarded by a decoder. Stuffing may also be performed using the adaptation_field mechanism. For a more detailed description of the mechanism and functionality, specifically refer to clause 2.4.4 and annex C of ISO/IEC 13818-1 [18]. 5.1.3 Coding of PID and table_id fields Table 1 lists the PID values which shall be used for the TS packets which carry SI sections. Table 1: PID allocation for SI Table PID value PAT 0x0000 CAT 0x0001 TSDT 0x0002 reserved 0x0003 to 0x000F NIT, ST 0x0010 SDT, BAT, ST 0x0011 EIT, ST, CIT (TS 102 323 [13]) 0x0012 RST, ST 0x0013 TDT, TOT, ST 0x0014 network synchronization 0x0015 RNT (TS 102 323 [13]) 0x0016 reserved for future use 0x0017 to 0x001B inband signalling 0x001C measurement 0x001D DIT 0x001E SIT 0x001F Table 2 lists the values which shall be used for table_id for the service information, defined in the present document. Table 2: Allocation of table_id values Value Description 0x00 program_association_section 0x01 conditional_access_section 0x02 program_map_section 0x03 transport_stream_description_section 0x04 to 0x3F reserved 0x40 network_information_section - actual_network 0x41 network_information_section - other_network 0x42 service_description_section - actual_transport_stream 0x43 to 0x45 reserved for future use 0x46 service_description_section - other_transport_stream 0x47 to 0x49 reserved for future use 0x4A bouquet_association_section 0x4B to 0x4D reserved for future use 0x4E event_information_section - actual_transport_stream, present/following 0x4F event_information_section - other_transport_stream, present/following 0x50 to 0x5F event_information_section - actual_transport_stream, schedule BlueBook A38 22 Value Description 0x60 to 0x6F event_information_section - other_transport_stream, schedule 0x70 time_date_section 0x71 running_status_section 0x72 stuffing_section 0x73 time_offset_section 0x74 application information section (TS 102 812 [15]) 0x75 container section (TS 102 323 [13]) 0x76 related content section (TS 102 323 [13]) 0x77 content identifier section (TS 102 323 [13]) 0x78 MPE-FEC section (EN 301 192 [4]) 0x79 resolution notification section (TS 102 323 [13]) 0x7A MPE-IFEC section (TS 102 772 [51]) 0x7B to 0x7D reserved for future use 0x7E discontinuity_information_section 0x7F selection_information_section 0x80 to 0xFE user defined 0xFF reserved 5.1.4 Repetition rates and random access In systems where random access is a consideration, it is recommended to re-transmit SI sections specified within the present document several times, even when changes do not occur in the configuration. For SI specified within the present document the minimum time interval between the arrival of the last byte of a section to the first byte of the next transmitted section with the same PID, table_id and table_id_extension and with the same or different section_number shall be 25 ms. This limit applies for TSs with a total data rate of up to 100 Mbit/s. 5.1.5 Scrambling With the exception of the EIT carrying schedule information, all tables specified in the present document shall not be scrambled. One method for scrambling the EIT schedule table is given in annex E (Usage of the Scrambling_descriptor). If a scrambling method operating over TS packets is used, it may be necessary to use a stuffing mechanism to fill from the end of a section to the end of a packet so that any transitions between scrambled and unscrambled data occur at packet boundaries. In order to identify the CA streams which control the descrambling of the EIT data, a scrambled EIT schedule table shall be identified in the PSI. Service_id value 0xFFFF is allocated to identifying a scrambled EIT, and the program map section for this service shall describe the EIT as a private stream and shall include one or more CA_descriptors (defined in ISO/IEC 13818-1 [18]) which give the PID values and optionally, other private data to identify the associated CA streams. Service_id value 0xFFFF shall not be used for any other service. 5.2 Table definitions The following clauses describe the syntax and semantics of the different types of table. NOTE: The symbols and abbreviations, and the method of describing syntax used in the present document are the same as those defined in clauses 2.2 and 2.3 of ISO/IEC 13818-1 [18]. 5.2.1 Network Information Table (NIT) The NIT (see table 3) conveys information relating to the physical organization of the multiplexes/TSs carried via a given network, and the characteristics of the network itself. The BlueBook A38 23 combination of original_network_id and transport_stream_id allow each TS to be uniquely identified throughout the application area of the present document. Networks are assigned individual network_id values, which serve as unique identification codes for networks. The allocation of these codes may be found in TS101 162 [i.1]. The network_id and the original_network_id can take the same value, or may have to take different values subject to the allocation constraints for original_network_id and network_id as per TS 101 162 [9]. Guidelines for the processing of SI at transitions between delivery media boundaries, e.g. from satellite to cable or SMATV systems, can be found in TS 101 211 [i.2]. IRDs may be able to store the NIT information in non-volatile memory in order to minimize the access time when switching between channels ("channel hopping"). It is also possible to transmit a NIT for other networks in addition to the actual network. Differentiation between the NIT for the actual network and the NIT for other networks is achieved using different table_id values (see table 2). The NIT shall be segmented into network_information_sections using the syntax of table 3. Any sections forming part of an NIT shall be transmitted in TS packets with a PID value of 0x0010. Any sections of the NIT which describe the actual network (that is, the network of which the TS containing the NIT is a part) shall have the table_id 0x40 with the same table_id_extension (network_id).The network_id field takes the value assigned to the actual network in TS 101 162 [i.1]. Any sections of an NIT which refer to a network other than the actual network shall take a table_id value of 0x41 and the network_id shall take the value allocated to the other network in TS101 162[i.1]. Table 3: Network information section Syntax Number of bits Identifier network_information_section(){     table_id     8 uimsbf   section_syntax_indicator     1 bslbf   reserved_future_use   1 bslbf   reserved   2 bslbf   section_length   12 uimsbf   network_id   16 uimsbf   reserved   2 bslbf   version_number   5 uimsbf   current_next_indicator   1 bslbf   section_number   8 uimsbf   last_section_number   8 uimsbf   reserved_future_use   4 bslbf   network_descriptors_length   12 uimsbf   for(i=0;;i 16:9 aspect ratio, 25 Hz (see note 2) 0x01 0x05 MPEG-2 video, 4:3 aspect ratio, 30 Hz (see note 2) 0x01 0x06 MPEG-2 video, 16:9 aspect ratio with pan vectors, 30 Hz (see note 2) 0x01 0x07 MPEG-2 video, 16:9 aspect ratio without pan vectors, 30 Hz (see note 2) 0x01 0x08 MPEG-2 video, > 16:9 aspect ratio, 30 Hz (see note 2) 0x01 0x09 MPEG-2 high definition video, 4:3 aspect ratio, 25 Hz (see note 2) 0x01 0x0A MPEG-2 high definition video, 16:9 aspect ratio with pan vectors, 25 Hz (see note 2) BlueBook A38 43 Stream_content Component_type Description 0x01 0x0B MPEG-2 high definition video, 16:9 aspect ratio without pan vectors, 25 Hz (see note 2) 0x01 0x0C MPEG-2 high definition video, > 16:9 aspect ratio, 25 Hz (see note 2) 0x01 0x0D MPEG-2 high definition video, 4:3 aspect ratio, 30 Hz (see note 2) 0x01 0x0E MPEG-2 high definition video, 16:9 aspect ratio with pan vectors, 30 Hz (see note 2) 0x01 0x0F MPEG-2 high definition video, 16:9 aspect ratio without pan vectors, 30 Hz (see note 2) 0x01 0x10 MPEG-2 high definition video, > 16:9 aspect ratio, 30 Hz (see note 2) 0x01 0x11 to 0xAF reserved for future use 0x01 0xB0 to 0xFE user defined 0x01 0xFF reserved for future use 0x02 0x00 reserved for future use 0x02 0x01 MPEG-1 Layer 2 audio, single mono channel 0x02 0x02 MPEG-1 Layer 2 audio, dual mono channel 0x02 0x03 MPEG-1 Layer 2 audio, stereo (2 channel) 0x02 0x04 MPEG-1 Layer 2 audio, multi-lingual, multi-channel 0x02 0x05 MPEG-1 Layer 2 audio, surround sound 0x02 0x06 to 0x3F reserved for future use 0x02 0x40 MPEG-1 Layer 2 audio description for the visually impaired 0x02 0x41 MPEG-1 Layer 2 audio for the hard of hearing 0x02 0x42 receiver-mixed supplementary audio as per annex E of TS 101 154 [9] 0x02 0x43 to 0x46 reserved for future use 0x02 0x47 MPEG-1 Layer 2 audio, receiver mix audio description 0x02 0x48 MPEG-1 Layer 2 audio, broadcaster mix audio description 0x02 0x49 to 0xAF reserved for future use 0x02 0xB0 to 0xFE user-defined 0x02 0xFF reserved for future use 0x03 0x00 reserved for future use 0x03 0x01 EBU Teletext subtitles 0x03 0x02 associated EBU Teletext 0x03 0x03 VBI data 0x03 0x04 to 0x0F reserved for future use 0x03 0x10 DVB subtitles (normal) with no monitor aspect ratio criticality 0x03 0x11 DVB subtitles (normal) for display on 4:3 aspect ratio monitor 0x03 0x12 DVB subtitles (normal) for display on 16:9 aspect ratio monitor 0x03 0x13 DVB subtitles (normal) for display on 2.21:1 aspect ratio monitor 0x03 0x14 DVB subtitles (normal) for display on a high definition monitor 0x03 0x15 DVB subtitles (normal) with plano-stereoscopic disparity for display on a high definition monitor 0x03 0x16 to 0x1F reserved for future use 0x03 0x20 DVB subtitles (for the hard of hearing) with no monitor aspect ratio criticality 0x03 0x21 DVB subtitles (for the hard of hearing) for display on 4:3 aspect ratio monitor 0x03 0x22 DVB subtitles (for the hard of hearing) for display on 16:9 aspect ratio monitor 0x03 0x23 DVB subtitles (for the hard of hearing) for display on 2.21:1 aspect ratio monitor 0x03 0x24 DVB subtitles (for the hard of hearing) for display on a high definition monitor 0x03 0x25 DVB subtitles (for the hard of hearing) with plano-stereoscopic disparity for display on a high definition monitor 0x03 0x26 to 0x2F reserved for future use 0x03 0x30 Open (in-vision) sign language interpretation for the deaf 0x03 0x31 Closed sign language interpretation for the deaf 0x03 0x32 to 0x3F reserved for future use 0x03 0x40 video up-sampled from standard definition source material 0x03 0x41 to 0xAF reserved for future use 0x03 0xB0 to 0xFE user defined 0x03 0xFF reserved for future use 0x04 0x00 to 0x7F reserved for AC-3 audio modes (refer to table D.1) 0x04 0x80 to 0xFF reserved for enhanced AC-3 audio modes (refer to table D.1) 0x05 0x00 reserved for future use 0x05 0x01 H.264/AVC standard definition video, 4:3 aspect ratio, 25 Hz (see note 2) 0x05 0x02 reserved for future use 0x05 0x03 H.264/AVC standard definition video, 16:9 aspect ratio, 25 Hz (see note 2) 0x05 0x04 H.264/AVC standard definition video, > 16:9 aspect ratio, 25 Hz (see note 2) 0x05 0x05 H.264/AVC standard definition video, 4:3 aspect ratio, 30 Hz (see note 2) 0x05 0x06 reserved for future use 0x05 0x07 H.264/AVC standard definition video, 16:9 aspect ratio, 30 Hz (see note 2) 0x05 0x08 H.264/AVC standard definition video, > 16:9 aspect ratio, 30 Hz (see note 2) 0x05 0x09 to 0x0A reserved for future use BlueBook A38 44 Stream_content Component_type Description 0x05 0x0B H.264/AVC high definition video, 16:9 aspect ratio, 25 Hz (see note 2) 0x05 0x0C H.264/AVC high definition video, > 16:9 aspect ratio, 25 Hz (see note 2) 0x05 0x0D to 0x0E reserved for future use 0x05 0x0F H.264/AVC high definition video, 16:9 aspect ratio, 30 Hz (see note 2) 0x05 0x10 H.264/AVC high definition video, > 16:9 aspect ratio, 30 Hz (see note 2) 0x05 0x11 to 0x7F reserved for future use 0x05 0x80 H.264/AVC plano-stereoscopic frame compatible high definition video, 16:9 aspect ratio, 25 Hz, Side-by-Side (see notes 2 and 3) 0x05 0x81 H.264/AVC plano-stereoscopic frame compatible high definition video, 16:9 aspect ratio, 25 Hz, Top-and-Bottom (see notes 2 and 3) 0x05 0x82 H.264/AVC plano-stereoscopic frame compatible high definition video, 16:9 aspect ratio, 30 Hz, Side-by-Side (see notes 2, 3 and 4) 0x05 0x83 H.264/AVC plano-stereoscopic frame compatible high definition video, 16:9 aspect ratio, 30 Hz, Top-and-Bottom (see notes 2, 3 and 4) 0x05 0x84 to 0xAF reserved for future use 0x05 0xB0 to 0xFE user-defined 0x05 0xFF reserved for future use 0x06 0x00 reserved for future use 0x06 0x01 HE-AAC audio, single mono channel 0x06 0x02 reserved for future use 0x06 0x03 HE-AAC audio, stereo 0x06 0x04 reserved for future use 0x06 0x05 HE-AAC audio, surround sound 0x06 0x06 to 0x3F reserved for future use 0x06 0x40 HE-AAC audio description for the visually impaired 0x06 0x41 HE-AAC audio for the hard of hearing 0x06 0x42 HE-AAC receiver-mixed supplementary audio as per annex E of TS 101 154 [9] 0x06 0x43 HE-AAC v2 audio, stereo 0x06 0x44 HE-AAC v2 audio description for the visually impaired 0x06 0x45 HE-AAC v2 audio for the hard of hearing 0x06 0x46 HE-AAC v2 receiver-mixed supplementary audio as per annex E of TS 101 154 [9] 0x06 0x47 HE-AAC receiver mix audio description for the visually impaired 0x06 0x48 HE-AAC broadcaster mix audio description for the visually impaired 0x06 0x49 HE-AAC v2 receiver mix audio description for the visually impaired 0x06 0x4A HE-AAC v2 broadcaster mix audio description for the visually impaired 0x06 0x4B to 0xAF reserved for future use 0x06 0xB0 to 0xFE user-defined 0x06 0xFF reserved for future use 0x07 0x00 to 0x7F reserved for DTS audio modes (refer to annex G) 0x07 0x80 to 0xFF reserved for future use 0x08 0x00 reserved for future use 0x08 0x01 DVB SRM data [49] 0x08 0x02 to 0xFF reserved for DVB CPCM modes [46], [i.4] 0x09 to 0x0B 0x00 to 0xFF reserved for future use 0x0C to 0x0F 0x00 to 0xFF user defined NOTE 1: The profiles and levels of the codecs mentioned in table 26 are as defined in TS 101 154 [9] and TS 102 005 [10]. NOTE 2: In table 26, the terms "standard definition", "high definition", "25 Hz" and "30 Hz" are used as defined in TS 101 154 [9] clauses 5.1 to 5.4 for MPEG-2 and 5.5 to 5.7 for H.264/AVC and clauses 5.8 to 5.11 for VC-1 respectively. NOTE 3: See TR xxx xxx [xx] for further information on plano-stereoscopic modes. NOTE 4: 24 Hz video will also use this component_type. 6.2.9 Content descriptor The intention of the content descriptor (see table 27) is to provide classification information for an event. Table 27: Content descriptor Syntax Number of bits Identifier content_descriptor(){     descriptor_tag     8 uimsbf   descriptor_length   8 uimsbf   for  (i=0;;i4){       C2_System_tuning_frequency   32 bslbf     active_OFDM_symbol_duration   3 bslbf     guard_interval   3 bslbf     reserved   2 bslbf BlueBook A38 93   }   )   Semantics for the C2 delivery system descriptor: plp_id: This 8-bit field uniquely identifies a data PLP within the C2 System. The term is defined in [53]. data_slice_id: This 8-bit field uniquely identifies a data slice within the C2 system. The term is defined in [53]. C2_system_id: This 16-bit field uniquely identifies the C2 system being described. The term is defined in [53]. The remaining fields of this descriptor, immediately following the C2_system_id field should only be used once per C2 system because the parameters are equally applicable to all data slices carried over a particular C2 System The presence or absence of that part can be inferred from the descriptor length field. C2_System_tuning_frequency: This 32-bit field indicates the frequency value in steps of 1 Hz. The coding range is from minimum 0x00000001 (1 Hz) up to a maximum of 0xFFFFFFFF (4 294 967 295 Hz ). This data field conveys a tuning frequency, where a complete Preamble is transmitted within the corresponding tuning window. Generally the C2_System_tuning_frequency is the centre frequency of a C2_System. However, in cases when there are spectrum notches in the vicinity of the centre frequency of a transmitted signal, the actual data slice tuning frequency may deviate form the given C2_System centre frequency. A ctive O F D M symbol duration: This 3 bit field indicates the duration of the active OFDM symbol according to table 111. Table 111: Signalling format for the active OFDM symbol duration active_OFDM_symbol_duration Description 000 k FFT mode for 8MHz CATV systems) 001 597,33 k FFT mode for 6MHz CATV systems) 010 to 111 reserved for future use guard_interval: This 3-bit field indicates the guard interval according to table 112. Table 112: Signalling format for the guard interval guard_interval Guard interval values 000 1/128 001 1/64 010 to 111 reserved for future use 6.4.4.2 SH delivery system descriptor This descriptor (see table 113) is used to transmit the physical parameters for each DVB-SH [50] signal in the DVB network. This descriptor appears exactly once for each transport stream in each NIT sub_table describing the network. This descriptor is made of static and a dynamic part based on a modulation loop. BlueBook A38 94 Table 113: SH delivery system descriptor Syntax   No. of bits   Identifier   SH_delivery_system_descriptor(){     descriptor_tag   8 uimsbf   descriptor_length     8 uimsbf   descriptor_tag_extension   8 uimsbf   diversity_mode   4 bslbf   reserved   4 bslbf   for  (i=0;;  i  4){       SISO/MISO   2 bslbf     bandwidth   4 bslbf     reserved_future_use   2 bslbf     guard_interval   3 bslbf     transmission_mode   3 bslbf     other_frequency_flag   1 bslbf BlueBook A38 99     tfs_flag   1 bslbf     for  (i=0;;i=1){         primary_region_code   8 bslbf       if  (region_depth>=2){           secondary_region_code   8 bslbf         if  (region_depth==3){             tertiary_region_code   16 bslbf         }         }       }     }   }   Semantics for the target region descriptor: country_code: This 24-bit field identifies the countryusing the 3-character code as specified in ISO 3166 [41]. Each character is coded into 8bits according to ISO/IEC 8859-1 [23] and inserted in order into the 24-bit field. In the case that the 3 characters represent a number in the range of 900 to 999, then the country code specifies an ETSI defined group of countries. These allocations are defined in TS 101 162[i.1]. EXAMPLE: United Kingdom has 3-character code "GBR", which is coded as: "0100 0111 0100 0010 0101 0010". The country code can be signalled in two possible locations: the location outside the loop specifies the initial country code which applies until overridden by a country_code defined inside the loop. A country_code defined inside the loop applies to all following loops in the descriptor until overridden by another country_code defined inside a subsequent loop. country_code_flag: This 1-bit field if set to one indicates a country_code is defined inside the loop. The country code applies to all following target regions in the descriptor until another country code is defined inside a subsequent loop. region_depth: This 2-bit field identifies the hierarchical depth of the target region described by this descriptor loop. . The semantics of the region_depth field are: If the region_depth is 0 then the target region is the entire country identified by the current value of country_code. If the region_depth is 1 then the target region is a primary region, identified by the primary_region_code within the identified country. If the region_depth is 2 then the target region is a secondary region, identified by the combination of the secondary_region_code and primary_region_code within the identified country. If the region_depth is 3 then the target region is a tertiary region, identified by the combination of the tertiary_region_code, secondary_region_code and primary_region_code within the identified country. primary_region_code: This 8-bit field identifies the target primary region withina country. secondary_region_code: This 8-bit field identifies the target secondary region within a primary region within a country. tertiary_region_code: This 16-bit field identifies the target tertiaryregion within a secondary region within a primary region within a country. BlueBook A38 110 6.4.11 Target region name descriptor A target region is a geographical area containing the intended audience of a broadcast. A target region can be either an entire country, or a geographical area within a country. A country may be subdivided into a set of primary regions and each primary region may be subdivided into a set of secondary regions and, finally, each secondary region may be subdivided into a set of tertiary regions. In general, target regions subdivide a country into a hierarchy of primary, secondary and tertiary regions. The target regionnamedescriptor (see table 145) assigns a name to a target region. The target region name may be represented in multiple languages. For a particular target region within a country, only one name per language code shall be signalled. This descriptor may only be present in the first loop of the BAT or in the first loop of the NIT. Multiple instances of this descriptor are allowed. If the name of a target region is defined in both the BAT and the NIT, then the name of that region in the BAT takes precedence. All target regions, identified by a target region descriptor in a NIT, BAT or SDT, shall be named by a target region name descriptor, defined in a NIT or a BAT. The hierarchical structure created may have variable depth. Broadcasters shall ensure an appropriate name is transmitted at each populated level and at all levels above them in the hierarchy. Table145: target_region_name_descriptor Syntax Number of bits Identifier target_region_name_descriptor(){     descriptor_tag   8 uimsbf   descriptor_length   8 uimsbf   descriptor_tag_extension   8 uimsbf   country_code   24 bslbf   ISO_639_language_code   24 bslbf   for  (i=0;;i=2){         secondary_region_code   8 bslbf       if  (region_depth==3){           tertiary_region_code   16 bslbf       }       }     }   }   Semantics for the target region name descriptor: country_code: This 24-bit field identifies a country using the 3-character code as specified in ISO 3166 [41]. Each character is coded into 8bits according to ISO/IEC 8859-1 [23] and inserted in order into the 24-bit field. In the case that the 3 characters represent a number in the range of 900 to 999, then the country code specifies an ETSI defined group of countries. These allocations are defined in TS 101 162 [i.1]. EXAMPLE: United Kingdom has 3-character code "GBR", which is coded as: "0100 0111 0100 0010 0101 0010". BlueBook A38 111 ISO_639_language_code: This 24-bit field identifies the language of the component text description which may be contained in this descriptor. The ISO_639_language_code contains a 3-character code as specified by ISO 639-2 [42]. Both ISO 639-2/B and ISO 639-2/T may be used. Each character is coded into 8 bits according to ISO/IEC 8859-1 [23] and inserted in order into the 24-bit field. EXAMPLE: French has 3-character code "fre", which is coded as: "0110 0110 0111 0010 0110 0101" region_depth: This 2-bit field identifies the hierarchical depth of the target region described by this descriptor loop. The value 0 is reserved. The semantics of the region_depth field are: If the region_depth is 1 then the target region is a primary region, identified by the primary_region_code within the identified country. If the region_depth is 2 then the target region is a secondary region, identified by the combination of the secondary_region_code and primary_region_code within the identified country. If the region_depth is 3 then the target region is a tertiary region, identified by the combination of the tertiary_region_code, secondary_region_code and primary_region_code within the identified country. region_name_length:This 6-bit field specifies the length in bytes of the string that provides the target region name. text_char : This is an 8-bit field. A string of text_char fields specifies the target region name. Text information shall be coded using the character sets and methods described in annex A. primary_region_code: This 8-bit field identifies the target primary region withina country. secondary_region_code: This 8-bit field identifies the target secondary region within a primary region within a country. tertiary_region_code: This 16-bit field identifies the target tertiaryregion within a secondary region within a primary region within a country. 6.4.12 Video depth range descriptor To assist receivers in optimizing the placement of graphics, like text or icons, they wish to display on top of plano-stereoscopic 3D video, the video_depth_range_descriptor (see table 146) indicates the intended depth range of the 3D video. The video_depth_range_descriptor is a scoping descriptor (see clause 6.5).The location of a particular instance of the video_depth_range_descriptor defines the scope of the descriptor. If this descriptor occurs multiple times in a descriptor loop, then a particular range_type shall be present in only one instance of the video_depth_range_descriptor. Table 146: video_depth_range_descriptor Syntax Number of bits Identifier video_depth_range_descriptor(){     descriptor_tag   8 uimsbf   descriptor_length   8 uimsbf   descriptor_tag_extension   8 uimsbf   for  (i=0;;i ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP A- e 00A0 00A1 00A2 00A3 20AC 00A5 00A7 00A4 2018 201C 00AB 2190 2191 2192 2193 B- 00B0 00B1 00B2 00B3 00D7 00B5 00B6 00B7 00F7 2019 201D 00BB 00BC 00BD 00BE 00BF C- 0300 0301 0302 0303 0304 0306 0307 0308 030A 0327 030B 0328 030C D- 2015 00B9 00AE 00A9 2122 266A 00AC 00A6 215B 215C 215D 215E E- 2126 00C6 0110 00AA 0126 0132 013F 0141 00D8 0152 00BA 00DE 0166 014A 0149 F- SHY 0138 00E6 0111 03B4 0127 0131 0133 0140 0142 00F8 0153 00DF 00FE 0167 014B 00AD 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE 1: The SPACE character is located in position 0x20 of the code table. NOTE 2: NBSP = no-break space. NOTE 3: SHY = soft hyphen. NOTE 4: This table is a superset of ISO/IEC 6937 [22] with addition of the Euro symbol. NOTE 5: All characters in rowC are non-spacing characters (diacritical marks). Figure A.1: Character code table 00 - Latin alphabet with Unicode equivalents BlueBook A38 121 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F 5- P Q R S T U V W X Y Z [ \ ] ^ _ i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 0401 0402 0403 0404 0405 0406 0407 0408 0409 040A 040B 040C 00AD 040E 040F B- Ӥ 0410 0411 0412 0413 0414 0415 0416 0417 0418 04E4 041A 041B 041C 041D 041E 041F C- 0420 0421 0422 0423 0424 0425 0426 0427 0428 0429 042A 042B 042C 042D 042E 042F D- ӥ 0430 0431 0432 0433 0434 0435 0436 0437 0438 04E5 043A 043B 043C 043D 043E 043F E- 0440 0441 0442 0443 0444 0445 0446 0447 0448 0449 044A 044B 044C 044D 044E 044F F- 2116 0451 0452 0453 0454 0455 0456 0457 0458 0459 045A 045B 045C 00A7 045E 045F 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE 1: For the Ruthenian language, the characters in code positions 0xA5 (S) and 0xF5 (s) are replaced by and , respectively. NOTE 2: This is a variation of ISO/IEC 8859-5 [27]. The original characters in code positions 0x 0x have been replaced by and respectively. Figure A.2: Character code table 01 - Latin/Cyrillic alphabet with Unicode equivalents BlueBook A38 122 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 3- 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l A- NBSP ! SHY e 00A0 00A4 060C 00AD B- " # 061B 061F C- $ % & ' ( ) * + , - . / 0 1 2 0621 0622 0623 0624 0625 0626 0627 0628 0629 062A 062B 062C 062D 062E 062F D- 3 4 5 6 7 8 9 : ; < = 0630 0631 0632 0633 0634 0635 0636 0637 0638 0639 063A > ? @ A B C D E F G H I J K L M E- 0640 0641 0642 0643 0644 0645 0646 0647 0648 0649 064A 064B 064C 064D 064E 064F F- N O P 0650 0651 0652 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE 1: This is compatible with ISO/IEC 8859-6 [28]. NOTE 2: The characters 0xEB through 0xF2 are non-spacing characters (diacritical marks). Figure A.3: Character code table 02 - Latin/Arabic alphabet with Unicode equivalents BlueBook A38 123 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F 5- P Q R S T U V W X Y Z [ \ ] ^ _ i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 2018 2019 00A3 00A6 00A7 00A8 00A9 00AB 00AC 00AD 2015 B- 00B0 00B1 00B2 00B3 0384 0385 0386 0387 0388 0389 038A 00BB 038C 00BD 038E 038F C- 0390 0391 0392 0393 0394 0395 0396 0397 0398 0399 039A 039B 039C 039D 039E 039F D- 03A0 03A1 03A3 03A4 03A5 03A6 03A7 03A8 03A9 03AA 03AB 03AC 03AD 03AE 03AF E- 03B0 03B1 03B2 03B3 03B4 03B5 03B6 03B7 03B8 03B9 03BA 03BB 03BC 03BD 03BE 03BF F- 03C0 03C1 03C2 03C3 03C4 03C5 03C6 03C7 03C8 03C9 03CA 03CB 03CC 03CD 03CE 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE 1: This is a subset of ISO/IEC 8859-7 [29]. The characters 0xA4, 0xA5, and 0xAA have been omitted. NOTE 2: The characters 0xA8, 0xB4, and 0xB5 are non-spacing characters (diacritical marks). Figure A.4: Character code table 03 - Latin/Greek alphabet with Unicode equivalents BlueBook A38 124 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 00A2 00A3 00A4 00A5 00A6 00A7 00A8 00A9 00D7 00AB 00AC 00AD 00AE 00AF B- 00B0 00B1 00B2 00B3 00B4 00B5 00B6 00B7 00B8 00B9 00F7 00BB 00BC 00BD 00BE C- D- 2017 E- 05D0 05D1 05D2 05D3 05D4 05D5 05D6 05D7 05D8 05D9 05DA 05DB 05DC 05DD 05DE 05DF F- 05E0 05E1 05E2 05E3 05E4 05E5 05E6 05E7 05E8 05E9 05EA 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE1: This is a subet of ISO/IEC 8859-8 [30]. The characters 0xFD and 0xFE have been omitted. NOTE 2: The characters 0xA8, 0xB4, and 0xB8 are non-spacing characters (diacritical marks). Figure A.5: Character code table 04 - Latin/Hebrew alphabet with Unicode equivalents BlueBook A38 125 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 00A1 00A2 00A3 00A4 00A5 00A6 00A7 00A8 00A9 00D7 00AB 00AC 00AD 00AE 00AF B- 00B0 00B1 00B2 00B3 00B4 00B5 00B6 00B7 00B8 00B9 00F7 00BB 00BC 00BD 00BE 00BF C- 00C0 00C1 00C2 00C3 00C4 00C5 00C6 00C7 00C8 00C9 00CA 00CB 00CC 00CD 00CE 00CF D- 011E 00D1 00D2 00D3 00D4 00D5 00D6 00D7 00D8 00D9 00DA 00DB 00DC 0130 015E 00DF E- 00E0 00E1 00E2 00E3 00E4 00E5 00E6 00E7 00E8 00E9 00EA 00EB 00EC 00ED 00EE 00EF F- 011F 00F1 00F2 00F3 00F4 00F5 00F6 00F7 00F8 00F9 00FA 00FB 00FC 0131 015F 00FF 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE 1: This is compatible with ISO/IEC 8859-9 [31]. NOTE 2: The characters 0xA8, 0xB4, and 0xB8 are non-spacing characters (diacritical marks). Figure A.6: Character code table 05 Latin/Turkish alphabet with Unicode equivalents BlueBook A38 126 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F 5- P Q R S T U V W X Y Z [ \ ] ^ _ i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 0104 0112 0122 012A 0128 0136 00A7 013B 0110 0160 0166 017D 00AD 016A 014A B- 00B0 0105 0113 0123 012B 0129 0137 00B7 013C 0111 0161 0167 017E 2015 016B 014B C- 0100 00C1 00C2 00C3 00C4 00C5 00C6 012E 010C 00C9 0118 00CB 0116 00CD 00CE 00CF D- 00D0 0145 014C 00D3 00D4 00D5 00D6 0168 00D8 0172 00DA 00DB 00DC 00DD 00DE 00DF E- 0101 00E1 00E2 00E3 00E4 00E5 00E6 012F 010D 00E9 0119 00EB 0117 00ED 00EE 00EF F- 00F0 0146 014D 00F3 00F4 00F5 00F6 0169 00F8 0173 00FA 00FB 00FC 00FD 00FE 0138 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE: This is compatible with ISO/IEC 8859-10 [32]. Figure A.7: Character code table 06 Latin/Nordic alphabet with Unicode equivalents BlueBook A38 127 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F 4- @ A B C D E F G H I J K L M N O 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F 5- P Q R S T U V W X Y Z [ \ ] ^ _ i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP A- e 00A0 0E01 0E02 0E03 0E04 0E05 0E06 0E07 0E08 0E09 0E0A 0E0B 0E0C 0E0D 0E0E 0E0F B- 0E10 0E11 0E12 0E13 0E14 0E15 0E16 0E17 0E18 0E19 0E1A 0E1B 0E1C 0E1D 0E1E 0E1F C- 0E20 0E21 0E22 0E23 0E24 0E25 E026 0E27 0E28 0E29 0E2A 0E2B 0E2C 0E2D 0E2E 0E2F D- 0E30 0E31 0E32 0E33 E034 0E35 0E36 0E37 0E38 0E39 0E3A 0E3F E- 0E40 0E41 0E42 0E43 0E44 0E45 0E46 0E47 0E48 0E49 0E4A 0E4B 0E4C 0E4D 0E4E 0E4F F- 0E50 0E51 0E52 0E53 0E54 0E55 0E56 0E57 0E58 0E59 0E5A 0E5B 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE: This is compatible with ISO/IEC 8859-11 [33]. NOTE 2: The characters 0xD1, 0xD4 through 0xDA, and 0xE7 through 0xEE are non-spacing characters (diacritical marks). Figure A.8: Character code table 07 - Latin/Thai alphabet with Unicode equivalents BlueBook A38 128 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 201D 00A2 00A3 00A4 201E 00A6 00A7 00D8 00A9 0156 00AB 00AC 00AD 00AE 00C6 B- 00B0 00B1 00B2 00B3 201C 00B5 00B6 00B7 00F8 00B9 0157 00BB 00BC 00BD 00BE 00E6 C- 0104 012E 0100 0106 00C4 00C5 0118 0112 010C 00C9 0179 0116 0122 0136 012A 013B D- 0160 0143 0145 00D3 014C 00D5 00D6 00D7 0172 0141 015A 016A 00DC 017B 017D 00DF E- 0105 012F 0101 0107 00E4 00E5 0119 0113 010D 00E9 017A 0117 0123 0137 012B 013C F- 0161 0144 0146 00F3 014D 00F5 00F6 00F7 0173 0142 015B 016B 00FC 017C 017E 2019 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE: This is compatible with ISO/IEC 8859-13 [34]. Figure A.9: Character code table 09 Latin/Baltic Rim alphabet with Unicode equivalents BlueBook A38 129 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F 5- P Q R S T U V W X Y Z [ \ ] ^ _ i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 1E02 1E03 00A3 010A 010B 1E0A 00A7 1E80 00A9 1E82 1E0B 1EF2 00AD 00AE 0178 B- 1E1E 1E1F 0120 0121 1E40 1E41 00B6 1E56 1E81 1E57 1E83 1E60 1EF3 1E84 1E85 1E61 C- 00C0 00C1 00C2 00C3 00C4 00C5 00C6 00C7 00C8 00C9 00CA 00CB 00CC 00CD 00CE 00CF D- 0174 00D1 00D2 00D3 00D4 00D5 00D6 1E6A 00D8 00D9 00DA 00DB 00DC 00DD 0176 00DF E- 00E0 00E1 00E2 00E3 00E4 00E5 00E6 00E7 00E8 00E9 00EA 00EB 00EC 00ED 00EE 00EF F- 0175 00F1 00F2 00F3 00F4 00F5 00F6 1E6B 00F8 00F9 00FA 00FB 00FC 00FD 0177 00FF 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE: This is compatible with ISO/IEC 8859-14 [35]. Figure A.10: Character code table 0A Latin/Celtic alphabet with Unicode equivalents BlueBook A38 130 Second Nibble -0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F 0- 1- SPC ! # $ % & ( ) * + , - . / 2- 0020 0021 0022 0023 0024 0025 0026 0027 0028 0029 002A 002B 002C 002D 002E 002F 0 1 2 3 4 5 6 7 8 9 : ; < = > ? 3- 0030 0031 0032 0033 0034 0035 0036 0037 0038 0039 003A 003B 003C 003D 003E 003F @ A B C D E F G H I J K L M N O 4- 0040 0041 0042 0043 0044 0045 0046 0047 0048 0049 004A 004B 004C 004D 004E 004F F P Q R S T U V W X Y Z [ \ ] ^ _ 5- i 0050 0051 0052 0053 0054 0055 0056 0057 0058 0059 005A 005B 005C 005D 005E 005F r ` a b c d e f g h i j k l m n o 6- s 0060 0061 0062 0063 0064 0065 0066 0067 0068 0069 006A 006B 006C 006D 006E 006F t p q r s t u v w x y z { | } ~ 7- 0070 0071 0072 0073 0074 0075 0076 0077 0078 0079 007A 007B 007C 007D 007E N 8- i b 9- b l NBSP SHY A- e 00A0 00A1 00A2 00A3 00A4 00A5 0160 00A7 0161 00A9 00AA 00AB 00AC 00AD 00AE 00AF B- 00B0 20AC 00B2 00B3 017D 00B5 00B6 00B7 017E 00B9 00BA 00BB 0152 0153 0178 00BF C- 00C0 00C1 00C2 00C3 00C4 00C5 00C6 00C7 00C8 00C9 00CA 00CB 00CC 00CD 00CE 00CF D- 00D0 00D1 00D2 00D3 00D4 00D5 00D6 00D7 00D8 00D9 00DA 00DB 00DC 00DD 00DE 00DF E- 00E0 00E1 00E2 00E3 00E4 00E5 00E6 00E7 00E8 00E9 00EA 00EB 00EC 00ED 00EE 00EF F- 00F0 00F1 00F2 00F3 00F4 00F5 00F6 00F7 00F8 00F9 00FA 00FB 00FC 00FD 00FE 00FF 0 -1 -2 -3 -4 -5 -6 -7 -8 -9 -A -B -C -D -E -F NOTE: This is a variation of ISO/IEC 8859-15 [36]. have been replaced by ¤ and respectively. Figure A.11: Character code table 0B Latin/Western European alphabet with Unicode equivalents BlueBook A38 131 Annex B (normative): CRC decoder model The 32-bit CRC decoder is specified in figure B.1. Figure B.1: 32-bit CRC decoder model The 32-bit CRC decoder operates at bit level and consists of 14 adders + and 32 delay elements z(i). The input of the CRC decoder is added to the output of z(31), and the result is provided to the input z(0) and to one of the inputs of each remaining adder. The other input of each remaining adder is the output of z(i), while the output of each remaining adder is connected to the input of z(i+1), with i = 0, 1, 3, 4, 6, 7, 9, 10, 11, 15, 21, 22 and 25 (see figure B.1). This is the CRC calculated with the polynomial: x32 + x26 + x23 + x22 + x16 + x12 + x11 + x10 + x8 + x7 + x5 + x4 + x2 + x + 1 At the input of the CRC decoder bytes are received. Each byte is shifted into the CRC decoder one bit at a time, with the Most Significant Bit (MSB) first, i.e. from byte 0x01 (the last byte of the startcode prefix), first the seven "0"s enter the CRC decoder, followed by the one "1". Before the CRC processing of the data of a section the output of each delay element z(i) is set to its initial value "1". After this initialization, each byte of the section is provided to the input of the CRC decoder, including the four CRC_32 bytes. After shifting the last bit of the last CRC_32 byte into the decoder, i.e. into z(0) after the addition with the output of z(31), the output of all delay elements z(i) is read. In case of no errors, each of the outputs of z(i) has to be zero. BlueBook A38 132 At the CRC encoder the CRC_32 field is encoded with such value that this is ensured. BlueBook A38 133 Annex C (informative): Conversion between time and date conventions The types of conversion which may be required are summarized in figure C.1. NOTE: Offsets are positive for Longitudes East of Greenwich and negative for Longitudes West of Greenwich. Figure C.1: Conversion routes between Modified Julian Date (MJD) and Co-ordinated Universal Time (UTC) The conversion between MJD + UTC and the "local" MJD + local time is simply a matter of adding or subtracting the local offset. This process may, of course, involve a "carry" or "borrow" from the UTC affecting the MJD. The other five conversion routes shown on the diagram are detailed in the formulas below: BlueBook A38 134 Symbols used: D Day of month from 1 to 31 int Integer part, ignoring remainder K, L, M', W, Y' Intermediate variables M Month from January (= 1) to December (= 12) MJD Modified Julian Date mod 7 Remainder (0-6) after dividing integer by 7 UTC Universal Time, Co-ordinated WD Day of week from Monday (= 1) to Sunday (= 7) WN Week number according to ISO 8601 [40] WY "Week number" Year from 1900 x Multiplication Y Year from 1900 (e.g. for 2003, Y = 103) a) To find Y, M, D from MJD Y' = int [ (MJD - 15 078,2) / 365,25 ] M' = int { [ MJD - 14 956,1 - int (Y' 365,25) ] / 30,6001 } D = MJD - 14 956 - int (Y' 365,25) - int (M' 30,6001) If M' = 14 or M' = 15, then K = 1; else K = 0 Y = Y' + K M = M' - 1 - K 12 b) To find MJD from Y, M, D If M = 1 or M = 2, then L = 1; else L = 0 MJD = 14 956 + D + int [ (Y - L) 365,25] + int [ (M + 1 + L 12) 30,6001 ] c) To find WD from MJD WD = [ (MJD + 2) mod 7 ] + 1 d) To find MJD from WY, WN, WD MJD = 15 012 + WD + 7 { WN + int [ (WY 1 461 / 28) + 0,41] } e) To find WY, WN from MJD W = int [ (MJD / 7) - 2 144,64 ] WY = int [ (W 28 / 1 461) - 0,0079] WN = W - int [ (WY 1 461 / 28) + 0,41] EXAMPLE: MJD = 45 218 W = 4 315 Y = (19)82 WY = (19)82 M = 9 (September) N = 36 D = 6 WD = 1 (Monday) NOTE: These formulas are applicable between the inclusive dates 1900 March 1 to 2100 February 28. BlueBook A38 135 Annex D (informative): Service information implementation of AC-3 and Enhanced AC-3 audio in DVB systems This annex describes the implementation and implementation guidelines for DVB Service Information for conveying AC-3 and Enhanced AC-3 audio elementary streams within a DVB transport stream. Since the transmission of AC-3 and Enhanced AC-3 audio streams is optional in DVB systems this annex has an informative status. However, if AC-3 or Enhanced AC-3 audio streams are transmitted in a DVB system the specifications in this annex are to be followed. D.1 AC-3 and Enhanced AC-3 component types Table D.1 shows the assignment of component_type values in the component_descriptor in the case that the stream_content value is set to 0x04, indicating the reference to an AC-3 or Enhanced AC-3 stream.The value of the component_type field shall not be set to any values other than those explicitly indicated in Table D.1. If values other than those shown in Table D.1 are conveyed, the component_type fieldmay be ignored. Table D.1: AC-3 and Enhanced AC-3 component_type value assignments component_type bits Description b7 (MSB) Enhanced AC-3 flag (see Table D.2) b6 full service flag (see Table D.3) b5 to b3 service type flags (see Table D.4) b2 to b0 number of channels flags (see Table D.5) Table D.2: Enhanced AC-3 flag Enhanced AC-3 flag Description b7 0 stream is AC-3 1 stream is Enhanced AC-3 Table D.3: Full service flag full service flag Description b6 0 decoded audio stream is an associated service intended to be combined with another decoded audio stream before presentation to the listener 1 decoded audio stream is a full service (suitable for decoding and presentation to the listener) BlueBook A38 136 Table D.4: Service type flags service type flags Description Restrictions (see note) b5 b4 b3 full service flag number of channels flags (b6) (b2 to b0) 0 0 0 Complete Main (CM) must be set to 1 0 0 1 Music and Effects (ME) must be set to 0 0 1 0 Visually Impaired (VI) 0 1 1 Hearing Impaired (HI) 1 0 0 Dialogue (D) must be set to 0 1 0 1 Commentary (C) must be set to 000 1 1 0 Emergency (E) must be set to 1 must be set to 000 1 1 1 Voiceover (VO) must be set to 0 must be set to 000 1 1 1 Karaoke must be set to 1 must be set to 010, 011 or 100 NOTE: The values of the service type flags shall only be considered valid if the conditions identified in the restrictions column are satisfied. Table D.5: Number of channels flags number of channels flags Description Restrictions (see note) b2 b1 b0 Enhanced AC-3 flag (b7) 0 0 0 Mono 0 0 1 1+1 Mode 0 1 0 2 channel (stereo) 0 1 1 2 channel Dolby Surround encoded (stereo) 1 0 0 Multichannel audio (> 2 channels) 1 0 1 Multichannel audio (> 5.1 channels) must be set to 1 1 1 0 Elementary stream contains multiple must be set to 1 programmes carried in independent substreams 1 1 1 reserved for future use NOTE: The values of the number of channels flags shall only be considered valid if the conditions identified in the restrictions column are satisfied. D.2 AC-3 Descriptor The AC-3_descriptor identifies an AC-3 audio elementary stream that has been coded in accordance with TS 102 366 [14] (not including annex E thereof). The intended purpose is to provide configuration information for the IRD. The descriptor is located in the PSI PMT, and used once in a program map section following the relevant ES_info_length field for any stream containing AC-3 audio coded in accordance with TS 102 366 [14] (not including annex E thereof). The descriptor tag provides a unique identification of the presence of the AC-3 elementary stream. Other optional fields in the descriptor may be used to provide identification of the component type mode of the AC-3 audio coded in the stream (component_type field) and indicate if the stream is a main AC-3 audio service (main field) or an associated AC-3 service (asvc field). The descriptor has a minimum length of one byte, but may be longer depending upon the state of the flags and the additional info loop. BlueBook A38 137 D.3 AC-3 Descriptor Syntax The AC-3 descriptor (see table D.6) is used in the PSI PMT to identify streams which carry AC-3 audio. The descriptor is to be located once in a program map section following the relevant ES_info_length field. D.3.1 Semantics for the AC-3 descriptor descriptor_tag: The descriptor tag is an 8-bit field which identifies each descriptor. The value assigned to the AC-3 descriptor_tag is 0x6A (see table 12). descriptor_length: This 8-bit field specifies the total number of bytes of the data portion of the descriptor following the byte defining the value of this field. The AC-3 descriptor has a minimum length of one byte but may be longer depending on the use of the optional flags and the additional_info_loop. component_type_flag: This 1-bit field is mandatory. It should be set to "1" to include the optional component_type field in the descriptor. bsid_flag: This 1-bit field is mandatory. It should be set to "1" to include the optional bsid field in the descriptor. mainid_flag: This 1-bit field is mandatory. It should be set to "1" to include the optional mainid field in the descriptor. asvc_flag: This 1-bit field is mandatory. It should be set to "1" to include the optional asvc field in the descriptor. reserved flags: These 1-bit fields are reserved for future use. They should always be set to "0". component_type: This optional 8-bit field indicates the type of audio carried in the AC-3 elementary stream. It is set to the same value as the component type field of the component descriptor (see table D.2). bsid: This optional 8-bit field indicates the AC-3 coding version. The three MSBs should always be set to "0". The five LSBs are set to the same value as the bsid field in the AC-3 elementary stream, i.e. "01000" (= 8) or "00110" (= 6) in the current version of AC-3. mainid: This optional 8-bit field identifies a main audio service and contains a number in the range 0 to 7 which identifies a main audio service. Each main service should be tagged with a unique number. This value is used as an identifier to link associated services with particular main services. asvc: This 8-bit field is optional. Each bit (0 to 7) identifies with which main service(s) this associated service is associated. The left most bit, bit 7, indicates whether this associated service may be reproduced along with main service number 7. If the bit has a value of 1, the service is associated with main service number 7. If the bit has a value of 0, the service is not associated with main service number 7. additional_info_byte: These optional bytes are reserved for future use. Table D.6: AC-3 descriptor syntax Syntax Number Identifier of bits AC-­3_descriptor(){     descriptor_tag   8 uimsbf   descriptor_length   8 uimsbf BlueBook A38 138   component_type_flag   1 bslbf   bsid_flag   1 bslbf   mainid_flag   1 bslbf   asvc_flag   1 bslbf   reserved_flags   4 bslbf   if  (component_type_flag==1){   8 uimsbf     component_type     }     if  (bsid_flag==1){   8 uimsbf     bsid     }     if  (mainid_flag==1){   8 uimsbf     mainid     }     if  (asvc_flag==1){   8 uimsbf     asvc     }     for(i=0;;i 2 channels) 1 0 1 Multichannel audio (> 5.1 channels) 1 1 0 reserved for future use 1 1 1 reserved for future use BlueBook A38 142 Annex E (normative): Usage of the Scrambling_descriptor Mixing of different scrambling modes within the same Transport Stream: This situation may occur when a TS is made by multiplexing two or more independent TS streams. Mixing of different scrambling modes within the same service at the same time: This is not allowed. The same mode shall be used by all scrambled components of a service at the same time. Change of scrambling mode over time for a given service (e.g. from event to event): This situation may occur at any time, for instance when broadcasting events that were stored in scrambled mode or when inserting a local programme. Transitions should not be expected to be seamless. BlueBook A38 143 Annex F (informative): ISO 639 Language Descriptor for "original audio" Soundtrack Where audio in two languages is broadcast, TR 101 154 [9] specifies the order in which the ISO 639 Language Descriptors will be used in order to associate a language with its respective audio channel. In some cases, broadcasters may wish to signal that one of the channels contains the audio in the original language of the source, without specifying the exact language being used. This "original audio" language may be signalled with an ISO 639 language code of "qaa", from the "local use" area of ISO 639. BlueBook A38 144 Annex G (informative): Service information implementation of DTS coded audio in DVB systems This annex describes the implementation and implementation guidelines for DVB Service Information for conveying DTS codedaudio elementary streams within a DVB transport stream. Since the transmission of DTS coded audio streams is optional in DVB systems this annex has an informative status. However, if DTS coded audio streams are transmitted in a DVB system the specifications in this annex is to be followed. G.1 DTS Audio descriptor The DTS_descriptor identifies a DTS coded audio elementary stream that has been coded in accordance with TS 102 114 [12]. The intended purpose is to provide configuration information for the IRD. The descriptor is located in the PSI PMT, and used once in a program map section following the relevant ES_info_length field for any stream containing DTS coded audio coded in accordance with TS 102 114 [12]. The descriptor tag provides a unique identification of the presence of the DTS coded elementary stream. Other optional fields in the descriptor may be used to provide identification of the component type mode of the DTS audio coded in the stream (component_type field). G.2 DTS Descriptor Syntax The DTS descriptor (see table G.1) is used in the PSI PMT to identify streams which carry DTS audio. The descriptor is to be located once in a program map section following the relevant ES_info_length field. G.2.1 Semantics for the DTS descriptor The DTS audio descriptor is shown in table G.1. It is optional that the IRD decodes the DTS audio descriptor. Table G.1: DTS Audio Descriptor Syntax Number Mnemonic of Bits DTS_audio_stream_descriptor(){     descriptor_tag   8 uimsbf   descriptor_length   8 uimsbf   sample_rate_code   4 bslbf   bit_rate_code   6 bslbf   nblks   7 bslbf   fsize   14 uimsbf   surround_mode   6 bslbf   lfe_flag   1 uimsbf   extended_surround_flag   2 uimsbf   for(i=0;;i  1){       AAC_type_flag   1 bslbf     reserved   7 bslbf     if  (AAC_type_flag  ==  1){         AAC_type   8 uimsbf     }       for(i=0;;i