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mp4dump

    MP4 File Dumper - Version 1.2
    (Bento4 Version 1.6.0.0)
    (c) 2002-2011 Axiomatic Systems, LLC
    usage: mp4dump [options] <input>
    options are:
      --verbosity <n>
          sets the verbosity (details) level to <n> (between 0 and 3)
      --track <track_id>[:<key>]
          writes the track data into a file
          (<mp4filename>.<track_id>) and optionally
          tries to decrypt it with the key (128-bit in hex)
          (several --track options can be used, one for each track)
          Each sample is written preceded by its size encoded as a 32-bit
          value in big-endian byte order
      --format <format>
          format to use for the output, where <format> is either
          'text' (default) or 'json'