QVideoGen is an application of the Qt project http://www.trolltech.com. QVideoGen can (soon) be found at ftp://ftp.altlinux.org/pub/distributions/.
In order to successfully compile QVideoGen, you need Qt version >= 3.0 Qt can be found at ftp://ftp.trolltech.com.
In order to compile and install QVideoGen on your system, type the following in the base directory of the QVideoGen distribution:
$ qmake
$ make
$ su root -c 'cp ./bin/qvideogen /usr/bin/'
Note: If you haven't got root permissions on your machine, then you
shouldn't be messing with the X config either :)