[FFmpeg-trac] #2697(avformat:new): MP3 output duration incorrect in OS X

[FFmpeg]

#2697: MP3 output duration incorrect in OS X
------------------------------------+------------------------------------
             Reporter:  llogan      |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  mp3 osx     |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+------------------------------------
Changes (by llogan):

 * keywords:  mp3 => mp3 osx
 * component:  undetermined => avformat


Comment:

 Using `-write_xing 0` results in an output that allows Finder and
 Quicktime to report the correct duration.

 {{{
 $ ./ffmpeg -f lavfi -i sine=d=300 -write_xing 0 duration.mp3
 ffmpeg version N-60686-gc919e1c Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Feb 16 2014 14:02:16 with gcc 4.8.2 (GCC) 20140206 (prerelease)
   configuration: --enable-gpl --enable-libmp3lame
   libavutil      52. 64.100 / 52. 64.100
   libavcodec     55. 52.102 / 55. 52.102
   libavformat    55. 33.100 / 55. 33.100
   libavdevice    55.  9.101 / 55.  9.101
   libavfilter     4.  1.102 /  4.  1.102
   libswscale      2.  5.101 /  2.  5.101
   libswresample   0. 17.104 /  0. 17.104
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, lavfi, from 'sine=d=300':
   Duration: N/A, start: 0.000000, bitrate: 705 kb/s
     Stream #0:0: Audio: pcm_s16le, 44100 Hz, mono, s16, 705 kb/s
 Output #0, mp3, to 'duration.mp3':
   Metadata:
     TSSE            : Lavf55.33.100
     Stream #0:0: Audio: mp3 (libmp3lame), 44100 Hz, mono, s16p
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le -> libmp3lame)
 Press [q] to stop, [?] for help
 size=    2344kB time=00:05:00.01 bitrate=  64.0kbits/s
 video:0kB audio:2344kB subtitle:0 data:0 global headers:0kB muxing
 overhead 0.001875%
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/2697#comment:3>
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