[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):

 Some people expect that. Other people output to images to apply some
 external processing and then re-encode, and expect this process to keep
 A-V sync even if the source material had a few skipped black frames.

 Either behaviour makes sense as the default one. Changing the default is a
 severe interface change.

 And using "smarter" heuristics would probably be more fragile.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1644#comment:4>
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