[FFmpeg-trac] #8919(avfilter:new): Setting 'fscale=log' together w/ 'start>0' will mess up the scaling of the y-axis in showspectrum(pic)

[FFmpeg]

#8919: Setting 'fscale=log' together w/ 'start>0' will mess up the scaling of the
y-axis in showspectrum(pic)
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             Reporter:  rkleinert    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:               |               Blocked By:
  showspectrum, showspectrumpic      |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Changes (by rkleinert):

 * Attachment "output.png" added.

 Result with the attached testfile and the code-example provided in the
 description

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Ticket URL: <https://trac.ffmpeg.org/ticket/8919>
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