[FFmpeg-trac] #4785(avfilter:new): Decimate filter doesn't work when used directly with fieldmatch

[FFmpeg]

#4785: Decimate filter doesn't work when used directly with fieldmatch
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             Reporter:  Detergent    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  fieldmatch   |               Blocked By:
  decimate pullup                    |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by Detergent):

 In this particular case, FFmpeg reacts the same way whether it's on the
 original file or the sample.
 It's not an important matter as there is a workaround (see the second
 command in the ticket, it works on both the original and the sample), but
 there is definitely something wrong with how decimate (or something else)
 operates when used in the same process as the other filters.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4785#comment:9>
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