Copyright (C) 2010-2012 by BoboTiG.
vlen comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it under
certain conditions. See the GNU General Public Licence for details.
vlen is a tool to get the duration of a video file.
For source compilation you need OpenCV headers :
For Debian GNU/Linux :
aptitude install libopencv-dev libhighgui-dev
vlen FILE [-q]
[*] Invalid and inefficient vfw-avi packed B frames detected These errors could append when the file is bad encoded, the duration could be altered.