[FFmpeg-trac] #9079(avformat:new): No head frame in new MXF Muxer

[FFmpeg]

#9079: No head frame in new MXF Muxer
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             Reporter:  FranceBB     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  MXF          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Tjoppen):

 Patch looks OK, post it on the list. The way mxfenc.c is designed makes it
 too easy to forget to add ULs to the primer pack. If we rewrote it
 slightly to keep track of which ULs and local tags are used and don't
 allow random tags to be written then we could reduce the size of the
 primer pack as a nice little bonus.

 I thought for a while that the primer doesn't need to contain any of the
 static local tags, but S377m proved me wrong: "The Primer shall contain
 all Local Tags used in Header Metadata Sets using 2-byte Local Tag
 encoding the Partition in which it occurs."

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Ticket URL: <https://trac.ffmpeg.org/ticket/9079#comment:13>
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