Upload fatal error

[ethix]

Edit include/config.php ,check following details are there.

$config['ffmpeg']  =  "/usr/bin/ffmpeg";
$config['mplayer']          =  "/usr/bin/mplayer";
$config['mencoder']       =  "/usr/bin/mencoder";
$config['flvtool']            =  "/usr/bin/flvtool2";

I filled them in but I get fatal error again:

Fatal error: Cannot instantiate non-existent class: ffmpeg_movie in /home/wczqluvy/public_html/machinima/include/classes/class.video_duration.php on line 54

I use cpanel