It's not exactly what you asked, but it may help you. It solved all my problems with video normalization...
I play music videos at a bowling center, and normalization was really a problem until I started using a multi-band dynamic compressor called
OctiMax. It will not just normalize the sound volume, but the bass/mid/treble will also be sort of "normalized".
OctMax is a winamp plugin, so I use it with
BSPlayer (that can perfectly play DSPs plugins from winamp).
Now I can just open a playlist of 400+ videos and forget about volume and equalization.
If you don’t care about a gentle dynamic compression, then it’s great tool. I use it every day. Even at my home computer.