[FFmpeg-trac] #11610(swscale:new): scale with reference prevents video to be scaled with a second scale filter instance

[FFmpeg]

#11610: scale with reference prevents video to be scaled with a second scale filter
instance
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             Reporter:  Alexander    |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  swscale
              Version:  7.1          |               Resolution:
             Keywords:  scale        |               Blocked By:
  scale2ref                          |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Gyan):

 The scaled input video gets consumed by the 2nd scale filter so can't be
 fed to overlay. Use the split filter first.


 {{{
  [0:v]scale=-2:720,split=2[base][ref]; \
  [1:v][ref]scale=-1:rw/8[logo_scaled]; \
  [base][logo_scaled]overlay=10:10"
 }}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/11610#comment:1>
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