Retrieving bad duration from h264 mov file

[Deron Kazmaier]

When executing the command "ffmpeg -i h264_bad_duration.mov", ffmpeg returns the below details. The important (wrong) part is Duration. The video duration is (roughly) 30 seconds, but ffmpeg shows it as 5:34.49. It does appear to play correctly in mplayer (though it reports the same wrong duration, which should be no surprise).

File located at ​http://usmediavault.com/h264_bad_duration.mov

I tried uploading to upload.ffmpeg.org, but was unable to.

Thanks for looking at this.

Deron Kazmaier
​deron@faroutliving.com

---

ffmpeg version N-34139-gad2d597, Copyright (c) 2000-2011 the FFmpeg developers
  built on Oct 28 2011 12:57:49 with gcc 4.5.2
  configuration: --enable-gpl
  libavutil    51. 22. 0 / 51. 22. 0
  libavcodec   53. 23. 0 / 53. 23. 0
  libavformat  53. 17. 0 / 53. 17. 0
  libavdevice  53.  4. 0 / 53.  4. 0
  libavfilter   2. 45. 1 /  2. 45. 1
  libswscale    2.  1. 0 /  2.  1. 0
  libpostproc  51.  2. 0 / 51.  2. 0

Seems stream 1 codec frame rate differs from container frame rate: 11988.00 (11988/1) -> 59.94 (2997/50)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'h264_bad_duration.mov':
  Metadata:
    major_brand     : qt  
    minor_version   : 537199360
    compatible_brands: qt  
    creation_time   : 2011-10-27 20:31:39
  Duration: 00:05:34.49, start: 0.000000, bitrate: 2775 kb/s
    Stream #0:0(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, stereo, s16, 1536 kb/s
    Metadata:
      creation_time   : 2011-10-27 20:31:39
      handler_name    : ?Apple Alias Data Handler
    Stream #0:1(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720, 2636 kb/s, 5.37 fps, 59.94 tbr, 5994 tbn, 11988 tbc
    Metadata:
      creation_time   : 2011-10-27 20:31:39
      handler_name    : ?Apple Alias Data Handler
At least one output file must be specified

[Carl Eugen Hoyos]

QuickTime and vlc show the correct duration of 29 seconds.

[Oana Stratulat]

Patch for this bug.

[Carl Eugen Hoyos]

Fixed by Oana Stratulat.