[FFmpeg-trac] #3428(undetermined:new): WMV file has wrong length detected by ffprobe/ffmpeg

[FFmpeg]

#3428: WMV file has wrong length detected by ffprobe/ffmpeg
--------------------------------------+----------------------------------
             Reporter:  boose         |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  2.1.3
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+----------------------------------
 Summary of the bug:

 Other players report length correctly as 30:38, ffprobe/ffmpeg seem to
 think it is 21:36

 How to reproduce:
 {{{
 boose at Cid:~/ffmpeg-2.1.3-64bit-static$ ./ffprobe 08\ Christian\
 Humanism.wmv
 ffprobe version 2.1.3-   http://johnvansickle.com/ffmpeg/    Copyright (c)
 2007-2013 the FFmpeg developers
   built on Jan 22 2014 19:50:14 with gcc 4.8 (Debian 4.8.2-14)
   configuration: --enable-gpl --enable-version3 --disable-shared
 --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-
 libx264 --enable-libspeex --enable-libvorbis --enable-libvpx --enable-
 libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
 libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray
 --enable-libopenjpeg --disable-ffserver
   libavutil      52. 48.101 / 52. 48.101
   libavcodec     55. 39.101 / 55. 39.101
   libavformat    55. 19.104 / 55. 19.104
   libavdevice    55.  5.100 / 55.  5.100
   libavfilter     3. 90.100 /  3. 90.100
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 [asf @ 0x32cbd40] Estimating duration from bitrate, this may be inaccurate
 Input #0, asf, from '08 Christian Humanism.wmv':
   Metadata:
     [...]
     WM/EpisodeID    : Lect.08 Christian Humanism
     WM/EpisodeNumber: 8
   Duration: 00:21:36.74, start: 0.000000, bitrate: 2128 kb/s
     Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 2 channels,
 fltp, 128 kb/s
     Stream #0:1: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p, 640x480,
 2000 kb/s, SAR 1:1 DAR 4:3, 29.97 tbr, 1k tbn, 1k tbc
     Stream #0:2: Video: mjpeg, yuvj444p(pc), 419x563 [SAR 96:96 DAR
 419:563], 90k tbr, 90k tbn, 90k tbc
     Metadata:
       title           :
       comment         : Other
     Stream #0:3: Video: mjpeg, yuvj444p(pc), 419x563 [SAR 96:96 DAR
 419:563], 90k tbr, 90k tbn, 90k tbc
     Metadata:
       comment         : Cover (front)
 boose at Cid:~/ffmpeg-2.1.3-64bit-static$

 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3428>
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