[FFmpeg-trac] #3832(avfilter:new): support frame metadata in idet filter

[FFmpeg]

#3832: support frame metadata in idet filter
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             Reporter:  dericed      |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  idet,        |               Blocked By:
  metadata                           |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by ubitux):

 You can extract that information from frame by adding
 {{{frame=interlaced_frame,top_field_first}}} to the {{{-show_entries}}}
 option. I'm not sure it would make sense to duplicate that information
 into metadata. I know I was the one to suggest this initially, but I
 actually had in mind to export the confidence of the interlacing instead
 of the result.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3832#comment:1>
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