[FFmpeg-trac] #10602(undetermined:new): ffmpeg returns blank frames on some avi files with an initial -ss

[FFmpeg]

#10602: ffmpeg returns blank frames on some avi files with an initial -ss
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             Reporter:  Pat Gunn     |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Pat Gunn):

 Unfortunately, we don't have the ability to rework how the file is saved;
 typically microscopes have embedded software that write these file
 formats; I am one of the maintainers of a piece of scientific software
 that takes such files as input and does automated analysis on it. ffmpeg
 ends up used by this through moviepy through pims.

 It's frustrating that the avi format makes writing a good parser
 nontrivial. If always reading the first packet for metadata (like the
 palette) before doing a seek is sensible, that'd be great.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10602#comment:3>
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