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DRAFT AUSTRALIAN STANDARD - DIGITAL TELEVISION The SI Details

DRAFT AUSTRALIAN STANDARD - DIGITAL TELEVISION The SI Details. CT/2/C TELEVISION TRANSMITTING EQUIPMENT SERVICE INFORMATION SUB COMMITTEE. General Considerations Australian Standard will set the minimum requirements for Baseline IRDs.

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DRAFT AUSTRALIAN STANDARD - DIGITAL TELEVISION The SI Details

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  1. DRAFT AUSTRALIAN STANDARD - DIGITAL TELEVISIONThe SI Details

  2. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE General Considerations • Australian Standard will set the minimum requirements for Baseline IRDs. • Once the Standard is defined all decoders need to be backward compatible. • The Australian Standard references ETSI, AS/NZ, DVB, ITU, IEC/ISO and DAVIC standards.

  3. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE General Considerations • Final Publication on CD-ROM together with reference standards and links. • Periodically updated to latest approved texts

  4. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE DVB Standards • Some DVB Standards are “Living Documents”. • Some DVB Blue Books are still updated. • Some new DVB Blue Books are still produced.

  5. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE DVB Standards • DVB standards are published and updated through additions and revisions to the ETSI standards. • Latest advice from the DVB Project Office, the DVB FTP site and the DVB CD-ROM regarding the status of the DVB and ETSI standards.

  6. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE Awareness of Change • Australian manufacturers need to keep abreast of changes to the DVB standards by; • obtaining updated standards from ETSI, • obtaining new or updated DVB Blue Books,

  7. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE Awareness of Change • obtaining the latest release of the DVB CD-ROM, • becoming DVB members and contributing to the DVB group activities, • contacting the DVB Project Office in Geneva.

  8. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE Requirements for Australia • Australian broadcasters would need to take out network ID registrations with DVB/ETSI.

  9. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Clause 4.1.6. stream_id Accept • Clause 4.1.8.1 video_stream_descriptor and audio_stream_descriptor Accept • Clause 4.1.8.2 hierarchy_descriptor Accept

  10. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Clause 4.8.8.5 target_background_grid_descriptor Accept • Clause 4.1.10 Storage Media Interoperability Accept

  11. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Annex A (Display and Resolution formats) Modify • The Australian definition of HDTV requires; • a minimum value of horizontal_size_value of 720 pixels at a 50 Hz progressive scan frame rate or, • a minimum value of 1440 pixels at a 25 Hz interlaced frame rate.

  12. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • For Australian HDTV the maximum vertical_size_value is 1080 pixels (active lines). • ETR 154 Annex A contains a vertical_size_value of 1152 pixels (lines) for an interlaced format. • We note that while Annex A is Informative, the Annex will be a reference for IRD design and manufacture.

  13. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Annex B Active Format Descriptor Accept as Optional • The AFD provides Wide Screen Signalling and Pan/ Scan metadata giving the broadcaster control of displayed aspect ratio. • Receiver/chip manufacturers should note the Active Format Descriptor is optional.

  14. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Broadcasters should not assume that all receivers will use the latest chipsets which provide all options. • The Active Format Descriptor has been implemented by the UK Digital Television Group

  15. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 154 Implementation guidelines for the use of MPEG-2 • Annex C (Implementation of AC-3) Accept • Annex D (Audio Control Metadata for MPEG audio) Accept as Optional • Broadcasters should not assume that all receivers will use the latest chipsets which provide all options.

  16. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETS 300 468 Specification for Service Information (SI) in DVB systems • Clause 6.2.3 Component descriptor Accept SI-DAT 441 Rev. 7 • Clause 6.2.4 Content descriptor Accept Australian Tables • Clause 6.2.8.3 Terrestrial delivery system descriptor Accept SI-DAT 441 Rev. 7

  17. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETS 300 468 Specification for Service Information (SI) in DVB systems • Clause 6.2.11 Linkage descriptor Accept • Clause 6.2.12 Local time offset descriptor Accept SI-DAT 441 Rev. 7 • Clause 6.2.20 Parental rating descriptor Accept Australian Tables

  18. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETS 300 468 Specification for Service Information (SI) in DVB systems • Clause 6.2.22 Private data specifier descriptor Accept SI-DAT 441 Rev. 7 • Logical channel descriptor Accept as Optional • Country Region ID Accept Australian Tables

  19. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE ETSI ETR 211 Guidelines on implementation and usage of Service Information (SI) • Clause 4.2.1.2.1 Delivery system descriptors Accept • Clause 4.2.1.2.2 Service list descriptor Accept • Clause 4.2.4.7 Parental rating descriptor Accept Australian Tables • Clause 4.4.2 Terrestrial delivery systems Accept

  20. CT/2/C TELEVISION TRANSMITTING EQUIPMENTSERVICE INFORMATION SUB COMMITTEE Additional Matters

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