[FFmpeg-trac] #732(undetermined:new): Storing variables not working in expressions

[FFmpeg]

#732: Storing variables not working in expressions
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             Reporter:  jworrall     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  expression   |               Resolution:
  evaluation                         |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by jworrall):

 Sorry I used external libraries with that command.
 This gives the same incorrect result:

 ffmpeg -i kit.mov -t 3 \
 -vf "scale = st(0\,1) * 640 : ld(0) * 480" \
 -y output.mpg

 I don't think it matters what input file or format is used.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/732#comment:1>
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