ffmpeg version N-79081-g7af3f27 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.2.1 (Ubuntu 5.2.1-22ubuntu2) 20151010
  configuration: 
  libavutil      55. 19.100 / 55. 19.100
  libavcodec     57. 28.103 / 57. 28.103
  libavformat    57. 28.102 / 57. 28.102
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 39.102 /  6. 39.102
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
[mp3 @ 0x2b16320] Skipping 1044 bytes of junk at 4096.
[mp3 @ 0x2b16320] Estimating duration from bitrate, this may be inaccurate
Input #0, mp3, from 'test.mp3':
  Metadata:
    album_artist    : Annihilator
    album           : Alice In Hell (Reissue 1998)
    genre           : Technical Speed/Thrash Metal
    title           : Alison Hell
    artist          : Annihilator
    track           : 2/12
    date            : 1989
  Duration: 00:05:00.72, start: 0.000000, bitrate: 320 kb/s
    Stream #0:0: Audio: mp3, 44100 Hz, stereo, s16p, 320 kb/s
At least one output file must be specified