[FFmpeg-trac] #2465(avfilter:new): Hue/Edgedetect filter bug after scale and padding

[FFmpeg]

#2465: Hue/Edgedetect filter bug after scale and padding
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             Reporter:  jbvsmo      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avfilter
              Version:  git-master  |               Resolution:
             Keywords:  hue         |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
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Comment (by jbvsmo):

 Those are probably the same bug (related to the scale action)


 The filter graph is like this:

 {{{
 input --> scale --> split ---> pad=iw*2 ---> overlay=w --> output
                      |                          ^
                      |                          |
                      +------> some_filter ------+
 }}}

 The "some_filter" is what changed. With "hue" and "edgedetect", something
 weird will appear, but it is '''related to the "scale" filter'''

 If you remove the "scale" step, the output will be fine!

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2465#comment:6>
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