[FFmpeg-trac] #7245(undetermined:new): ffmpeg sws_scale nv12 to nv12 failed

[FFmpeg]

#7245: ffmpeg sws_scale nv12 to nv12 failed
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             Reporter:  qs           |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 sws_scale nv12 to nv12 failed, only got the y plane( u and v planes are
 missed)
 How to reproduce:
 {{{
 compile video_scale.cpp(I use ffmpeg 4.0 + vs2015)
 input.yuv is not equaled to output.yuv
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/7245>
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