[FFmpeg-trac] #6161(ffprobe:new): Wrong WAV duration only in json format

[FFmpeg]

#6161: Wrong WAV duration only in json format
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             Reporter:  lkentaro  |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  ffprobe   |                  Version:  git-master
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 ffprobe returns wrong wav duration, only in json format

 ffprobe.exe -v quiet -print_format json -show_format -i 2.wav
 {
     "format": {
         "filename": "2.wav",
         "nb_streams": 1,
         "nb_programs": 0,
         "format_name": "wav",
         "format_long_name": "WAV / WAVE (Waveform Audio)",
         "duration": "333.658549",
         "size": "58857412",
         "bit_rate": "1411201",
         "probe_score": 99
     }
 }

 ---
 without json format

 ffprobe.exe -i 2.wav
 Input #0, wav, from '2.wav':
   Duration: 00:05:33.66, bitrate: 1411 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels,
  s16, 1411 kb/s

 ---
 wav file
 https://drive.google.com/open?id=0B9_F3Jst6nCIaEFmNkhkbEMwZWM

 I don't know why, but another wav file works fine, show the correct
 duration.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6161>
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