[FFmpeg-trac] #3537(undetermined:new): Wrong duration of some WMV to MP4 file or wrong meta data with ffmpeg 2.1 and 2.2, but ok with 1.2 and old

[FFmpeg]

#3537: Wrong duration of some WMV to MP4 file or wrong meta data with ffmpeg 2.1
and 2.2, but ok with 1.2 and old
-------------------------------------+-------------------------------------
             Reporter:  vikigns      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by vikigns):

 Wrong coding source have:
     _SfMarkerDuration_0: 0
 Good does not!
 Possible it help?

 [wmv3 @ 0x8088e4620] Extra data: 8 bits left, value: 0
 Guessed Channel Layout for  Input Stream #0.0 : stereo
 Input #0, asf, from '/home/1280.wmv':
   Metadata:
     SfOriginalFPS   : 300000
     WMFSDKVersion   : 12.0.7600.16385
     WMFSDKNeeded    : 0.0.0.0000
     _SfMarkerDuration_0: 0
     IsVBR           : 0
     DeviceConformanceTemplate: MP at HL
   Duration: 00:21:25.36, start: 0.000000, bitrate: 3157 kb/s
     Chapter #0.0: start 56.589000, end 1285.363000
     Metadata:
       title           :
     Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, stereo,
 fltp, 96 kb/s
     Stream #0:1: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
 1280x720, 3049 kb/s, 30 tbr, 1k tbn, 1k tbc
 At least one output file must be specified


 [wmv3 @ 0x8088e4620] Extra data: 8 bits left, value: 0
 Guessed Channel Layout for  Input Stream #0.0 : stereo
 Input #0, asf, from '/home/1289.wmv':
   Metadata:
     SfOriginalFPS   : 300000
     WMFSDKVersion   : 12.0.7600.16385
     WMFSDKNeeded    : 0.0.0.0000
     IsVBR           : 0
     DeviceConformanceTemplate: MP at HL
   Duration: 00:25:00.10, start: 0.000000, bitrate: 3158 kb/s
     Stream #0:0(eng): Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz,
 stereo, fltp, 96 kb/s
     Stream #0:1(eng): Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
 1280x720, 3049 kb/s, 30 tbr, 1k tbn, 1k tbc

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Ticket URL: <https://trac.ffmpeg.org/ticket/3537#comment:6>
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