Not that I've been able to figure out. I know it will make Theora/Ogg video with the OGG wrapper.
It doesn't look to me like this would be a good transcoder anyway.
About the closest thing I found was ffmpeg2theora, but that isn't NSV.
It looks like they'res supposed to be some sort of support for NSV, but I haven't found anything but vague reference to it.
It does play NSV, but with VP6?.
Global Movies and TV
God grant me the serenity to accept the things I cannot change; courage to change the things I can; and wisdom to hide the bodies of people who pissed me off.