ffmpeg version 2.3 Copyright (c) 2000-2014 the FFmpeg developers
built on Jul 20 2014 00:01:46 with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
configuration:
libavutil      52. 92.100 / 52. 92.100
libavcodec     55. 69.100 / 55. 69.100
libavformat    55. 48.100 / 55. 48.100
libavdevice    55. 13.102 / 55. 13.102
libavfilter     4. 11.100 /  4. 11.100
libswscale      2.  6.100 /  2.  6.100
libswresample   0. 19.100 /  0. 19.100