avprobe version 0.8.13-6:0.8.13-0ubuntu0.13.10.1, Copyright (c) 2007-2014 the Libav developers
  built on Jul 15 2014 13:48:35 with gcc 4.8.1
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'kdenlivetest.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2mp41
    encoder         : Lavf53.21.1
  Duration: 00:00:05.10, start: 0.000000, bitrate: 4037 kb/s
    Stream #0.0(und): Video: mpeg4 (Simple Profile), yuv420p, 1360x768 [PAR 255:254 DAR 7225:4064], 4034 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc