Accurate Recording

Accurate Recording

Die Funktion Accurate Recording (AR) ermöglicht bei digitalen Videorekordern (Personal Video Recorder, PVR) den sendungsgenauen Mitschnitt von digitalen Fernsehsendungen ohne überflüssige Vor- und Nachlaufzeiten. Die Aufnahme startet automatisch am Anfang der Sendung und endet wenige Sekunden nach dem Ende der Sendung. Der PVR wertet dabei die Daten aus, die in der Tabelle »EIT present/following« (EIT p/f) übermittelt werden. Für die Steuerung der sendungsgenauen Aufzeichnung wird die event_id oder (falls vorhanden) die TVA_id benutzt. Dadurch ist die sendungsgenaue Aufzeichnung unabhängig von den oftmals ungenauen Zeitangaben in der Tabelle »EIT Schedule« möglich. Die Funktion AR ersetzt das vom analogen Fernsehen her bekannte Video Programming System (VPS) / Program Delivery Control (PDC).

Literatur

  • Technische Spezifikation ETSI TS 102 323 V1.4.1 (2010-01), Reference: "RTS/JTC-DVB-273", Kapitel 11, Seiten 99 - 102: "Accurate recording" und Annex A, Seiten 107 - 108: "Example recorder behaviour" und Annex E, Seiten 116 - 117: "Example Scenarios for encoding of TVA_id running_status as carried in EIT-present".
  • Technische Spezifikation ETSI TS 102 323 V1.1.1 (2004-09), Reference: "DTS/JTC-DVB-163", Kapitel 11, Seiten 82 - 84: "Accurate recording" und Annex A, Seiten 89 - 90: "Example recorder behaviour".
  • NorDig Unified Requirements for Integrated Receiver Decoders for use in cable, satellite, terrestrial and IP-based networks; Version 2.2.1 vom 24. November 2010, Abschnitt 14.3.7, Seiten 136 - 137: "Accurate Recording".

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