[FFmpeg-trac] #4017(avfilter:new): noise filter breaks when combined with scaling

[FFmpeg]

#4017: noise filter breaks when combined with scaling
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             Reporter:  rmk         |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:  noise       |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by cehoyos):

 That is very strange. I will try again to reproduce myself: So far I
 didn't really see the difference but I wonder now what the issue is: maybe
 the {{{format}}} filter does something bad (with the inserted scaler),
 this can be checked with a higher log level.
 Is the issue also reproducible if you simply remove the {{{format}}}
 filter from all command lines?

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Ticket URL: <https://trac.ffmpeg.org/ticket/4017#comment:7>
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