[FFmpeg-trac] #11281(avfilter:new): "showwavespic" filter failed with very short audio (< 200 ms)?

[FFmpeg]

#11281: "showwavespic" filter failed with very short audio (< 200 ms)?
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             Reporter:  Danny        |                    Owner:  (none)
  Weijermans                         |
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
  showwavespic                       |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Danny Weijermans):

 I also added a very short stereo soundfile: can you test it with this?
 I get an empty file if I use the following code-line:
  ffmpeg -y -v debug -hide_banner -nostdin -nostats -i
 /Users/disjt/Desktop/t.wav -filter_complex
 "compand,aformat=channel_layouts=mono,showwavespic=s=1400x100:colors=green"
 -frames:v 1 "t.png"
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Ticket URL: <https://trac.ffmpeg.org/ticket/11281#comment:6>
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