[FFmpeg-trac] #1644(avfilter:new): vf select doesn't work with multiple images output

[FFmpeg]

#1644: vf select doesn't work with multiple images output
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             Reporter:  ubitux       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avfilter
              Version:  unspecified  |               Resolution:
             Keywords:  select       |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by Cigaes):

 image2 is not capable of variable frame rate, so {{{-vsync cfr}}} is the
 default. Using {{{-vsync vfr}}} will force it and make your example work.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1644#comment:1>
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