[FFmpeg-trac] #445(FFmpeg:new): Wrong FLV duration metadata field

[FFmpeg]

#445: Wrong FLV duration metadata field
-------------------------------------+-------------------------------------
               Reporter:  burek      |                  Owner:  michael
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:  FFmpeg
                Version:  git-       |               Keywords:  flv meta
  master                             |  duration
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 When ffmpeg is used like this:
 '''ffmpeg -t 00:00:30 -i valid.flv -acodec copy -vcodec copy
 invalid.flv'''
 (extracting a part of the video to a new file) then the resulting file
 (invalid.flv) contains wrong duration metadata field (copied from the
 original 'valid.flv') which confuses all FLV web players, because the
 navigation can't be accurate because of that.

 I personally always use "'''flvmeta -Uf invalid.flv'''" after this kind of
 cutting, but it would be nice if ffmpeg would actually write correct
 values in the output file

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/445>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker