ffmpeg version git-2012-05-11-9eb99ab Copyright (c) 2000-2012 the FFmpeg developers
  built on May 11 2012 23:44:53 with gcc 4.6.3
  configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
  libavutil      51. 50.100 / 51. 50.100
  libavcodec     54. 21.101 / 54. 21.101
  libavformat    54.  4.100 / 54.  4.100
  libavdevice    53.  4.100 / 53.  4.100
  libavfilter     2. 72.105 /  2. 72.105
  libswscale      2.  1.100 /  2.  1.100
  libswresample   0. 11.100 /  0. 11.100
  libpostproc    52.  0.100 / 52.  0.100
Input #0, matroska,webm, from 'Tredici.Oltre.i.Perchè.2017.ENG.SUB.ITA.mkv':
  Metadata:
    creation_time   : 2017-05-05 18:20:50
  Duration: 00:29:02.64, start: 0.000000, bitrate: 2185 kb/s
    Stream #0:0: Video: h264 (Main), yuv420p, 1280x720, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 1k tbn, 47.96 tbc (default)
    Metadata:
      BPS             : 2055845
      BPS-eng         : 2055845
      DURATION        : 00:29:02.619000000
      DURATION-eng    : 00:29:02.619000000
      NUMBER_OF_FRAMES: 41788
      NUMBER_OF_FRAMES-eng: 41788
      NUMBER_OF_BYTES : 447819400
      NUMBER_OF_BYTES-eng: 447819400
      _STATISTICS_WRITING_APP: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-05-05 18:20:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-05-05 18:20:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:1(eng): Audio: aac, 48000 Hz, stereo, s16 (default)
    Metadata:
      BPS             : 127507
      BPS-eng         : 127507
      DURATION        : 00:29:02.634000000
      DURATION-eng    : 00:29:02.634000000
      NUMBER_OF_FRAMES: 81686
      NUMBER_OF_FRAMES-eng: 81686
      NUMBER_OF_BYTES : 27774888
      NUMBER_OF_BYTES-eng: 27774888
      _STATISTICS_WRITING_APP: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-05-05 18:20:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-05-05 18:20:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
    Stream #0:2(ita): Subtitle: text (default) (forced)
    Metadata:
      BPS             : 115
      BPS-eng         : 115
      DURATION        : 00:28:48.561000000
      DURATION-eng    : 00:28:48.561000000
      NUMBER_OF_FRAMES: 542
      NUMBER_OF_FRAMES-eng: 542
      NUMBER_OF_BYTES : 25026
      NUMBER_OF_BYTES-eng: 25026
      _STATISTICS_WRITING_APP: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_APP-eng: mkvmerge v11.0.0 ('Alive') 64bit
      _STATISTICS_WRITING_DATE_UTC: 2017-05-05 18:20:50
      _STATISTICS_WRITING_DATE_UTC-eng: 2017-05-05 18:20:50
      _STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
      _STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES