[FFmpeg-trac] #11239(swscale:new): Copy unscaled NV12 -> NV12 (and other format with 2 planes) broken.

[FFmpeg]

#11239: Copy unscaled NV12 -> NV12 (and other format with 2 planes) broken.
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             Reporter:  Aleksoid1978  |                    Owner:  (none)
                 Type:  defect        |                   Status:  new
             Priority:  normal        |                Component:  swscale
              Version:  unspecified   |               Resolution:
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
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Comment (by v0lt):

 I tried the following command and got a similar problem as Aleksoid1978.
 {{{
 ffmpeg -i nv12.mkv -vf scale -pix_fmt nv12 nv12_test.mkv
 }}}
 Sample: https://www.mediafire.com/file/x5c4372yqxcvcpq/NV12.mkv/file
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Ticket URL: <https://trac.ffmpeg.org/ticket/11239#comment:5>
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