The paths installed on your server are]

[root@vps mplayer]# which ffmpeg
/usr/bin/ffmpeg
[root@vps mplayer]# which mencoder
/usr/bin/mencoder
[root@vps mplayer]# which mplayer
/usr/bin/mplayer
[root@vps mplayer]# which flvtool2
/usr/bin/flvtool2
[root@vps mplayer]# which lame
/usr/bin/lame


That is

Code:
/usr/bin/ffmpeg
/usr/bin/mencoder
/usr/bin/mplayer
/usr/bin/flvtool2
/usr/bin/lame