[FFmpeg-trac] #9339(undetermined:new): tff interlaced encode from progressive not working

[FFmpeg]

#9339: tff interlaced encode from progressive not working
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             Reporter:  daren        |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:  tff          |               Blocked By:
  interlaced progressive             |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by jeeb):

 That's interesting since while I have found the issue (auto-detection
 after override was handled and not the other way around in ffmpeg.c), the
 "top" option when specified for an output does not do anything else than
 set that value to either "bb" (0) or "tt" (1).

 So if those two do not work... then there's something else at play as
 well.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9339#comment:8>
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