[FFmpeg-trac] #3551(undetermined:open): No duration detected for some FLV files

FFmpeg trac at avcodec.org
Sat Apr 12 14:35:29 CEST 2014

#3551: No duration detected for some FLV files
             Reporter:               |                    Owner:
  Underground78                      |                   Status:  open
                 Type:  enhancement  |                Component:
             Priority:  wish         |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  flv h264     |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
Changes (by cehoyos):

 * priority:  normal => wish
 * status:  new => open
 * type:  defect => enhancement
 * reproduced:  0 => 1


 I have no idea how this should work except by decoding the file
 (decode_hrd_parameters() is not called in the H264 decoder so I assume
 there is no bitrate set in the video stream) but the fact that FFmpeg
 shows neither bitrate nor duration is definitely reproducible.

 I just sent a patch to the ffmpeg-devel mailing list that would make the
 situation worse by setting a (not exactly correct) bitrate when decoding
 speex and therefore assuming a duration of ten minutes for the 10 seconds

Ticket URL: <https://trac.ffmpeg.org/ticket/3551#comment:7>
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