[FFmpeg-trac] #9448(avfilter:new): double fisheye to equirectangular conversion is broken

[FFmpeg]

#9448: double fisheye to equirectangular conversion is broken
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             Reporter:  Michael      |                     Type:  defect
  Koch                               |
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:
                                     |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 I'm sure this did work some time ago, but now the output is wrong:

 ffmpeg -i double_fisheye.png -lavfi
 "v360=input=dfisheye:output=e:ih_fov=180:iv_fov=180:pitch=90" -y
 equirectangular.png
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Ticket URL: <https://trac.ffmpeg.org/ticket/9448>
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