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AS-11: MXF for Contribution

AS-11 MXF for Contribution Brief Description (pdf) Download the specification

AS-11 MXF Program Contribution Specification (pdf) Download the specification

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Making delivery of programs by file easier. A conversation with the Digital Production Partnership's Andy Tennant, Controller of Technology, Production and Facilities, ITV, about MXF for Program Contribution,
AS-11
(pdf, 88k)


UK Digital Production Partnership Update - Andy Tennant, ITV and Kevin Burrows, Channel 4
From: AMWA on YouTube

AS-11 is a vendor-neutral subset of the MXF file format to use for delivery of finished programming from program producers and distributors to broadcast stations. AS-11 Files are intended to be complete and ready for playout. AS-11 support playout while the file transfer is in progress, a workflow is referred to as ‚Äúlate delivery‚ÄĚ. It is preferable for AS-11 files to be used by playout servers directly without rewrapping of the MXF data structures. The content may be delivered at the ultimate bit-rate, picture format and aspect ratio, or it may be transcoded at the broadcast station to the required bit-rates and formats.

Similar transcoding may be applied to audio and captions; additionally, specific audio and caption tracks may be selected for different broadcast channels.

The content may be pre-packaged for broadcast without further splicing or it may be segmented for ease of insertion or replacement of interstitials.

AS-11 supports SD video encoded as D-10, 50Mbit/s, and HD as AVC-Intra Class 100. Audio can be PCM, AC-3 or Dolby E.