[FFmpeg-trac] #2307(undetermined:new): Stream segmenter bug if total recorded length > 12 hours

FFmpeg trac at avcodec.org
Thu Mar 28 11:58:56 CET 2013


#2307: Stream segmenter bug if total recorded length > 12 hours
-------------------------------------+-------------------------------------
             Reporter:  dgillier     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  1.1.3        |  undetermined
             Keywords:  segment,     |               Resolution:
  duration                           |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by cehoyos):

 Replying to [comment:14 dgillier]:
 > I tried this evening with testsrc and I got strange behavior:
 >
 > Command used was :
 > ffmpeg -f lavfi -i testsrc -f s16le -i /dev/zero -vcodec mpeg4 -vb
 400000 -strict -2 -acodec aac -f segment -segment_time 1800 -map 0 -map 1
 /mnt/video/tests/test-mp4-%03dt.mp4
 >
 > I got a file per minute instead of a file per 30 minutes (1800 seconds),
 but I have in the description of the file (true for all files), a 30
 minutes duration ???:

 Sorry, I don't understand, I tested the following command line:
 $ ffmpeg -f lavfi -i testsrc -f s16le -i /dev/zero -vcodec mpeg4 -vb
 400000 -strict -2 -acodec aac -f segment -segment_time 1800 -map 0 -map 1
 outsegment-%03d.mp4

 I did not wait until 1000 files were written, but tested a few output
 files and they were all 30 minutes long (definitely not one minute) and
 that is also what your "ffmpeg -i"-output shows.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2307#comment:15>
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