[FFmpeg-trac] #5340(undetermined:closed): ffmpeg with WMV input renders incorrect audio length (with some codecs)

FFmpeg trac at avcodec.org
Fri Mar 18 12:05:57 CET 2016


#5340: ffmpeg with WMV input renders incorrect audio length (with some codecs)
-------------------------------------+-------------------------------------
             Reporter:  veganaiZe    |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |  worksforme
Analyzed by developer:  0            |               Blocked By:
                                     |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  reopened => closed
 * resolution:   => worksforme


Comment:

 Replying to [comment:12 veganaiZe]:
 > Why does my media player correctly report the time (before playback) for
 the original .WMV file, but not for the ffmpeg converted file?

 Please test `ffmpeg -i input out.asf && ffmpeg -i out.asf` to confirm that
 for asf files a duration is written in the file header. As you found out,
 this does not happen for aac files because aac files do not store the file
 duration. FFmpeg already prints a warning in this case.

 Please stop reopening this ticket: Your claim was that FFmpeg output files
 are significantly longer than the input files, you forced me to test this
 (in realtime) with different media players but you have already confirmed
 that this is not the case.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5340#comment:13>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list