VideoJack is a mechanism to route video signals between applications running on the same computer. It’s currently being developed as a patch to the jack audio server.
The videojack patch is updated to the last release of jack (0.109.2), and available for download from the sourceforge subversion repository:
Anything with a version number of 2 is part of the videojack patch.
Note: the URL will probably change, and all of this will end up in:
The (non-example) clients will be placed in: