[FFmpeg-trac] #1852(swscale:new): libswscale can't handle destination widths below 8

[FFmpeg]

#1852: libswscale can't handle destination widths below 8
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             Reporter:  gjdfgh   |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  swscale  |                  Version:  git-master
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  0
Analyzed by developer:  0        |
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 libswscale outputs warnings like these if the destination width is below
 8:

 [swscaler @ 0x8ae9860]1280x720 -> 7x4 is invalid scaling dimension

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1852>
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