VjackDev - VideoJack development.
Here it is the initial implementation of video jack from martin. The first one is the server (patched), the other contains example clients:
http://people.gephex.org/~martin/gephex/vjack.tar.bz2
http://people.gephex.org/~martin/gephex/vjack_examples.tar.bz2
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Salsaman has made a great HOWTO on using Vjack with LiVES.
It also shows how to get the latest patches from the repository
---> HOWTOVjackLiVES
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Salsaman also hacked Camorama to work with VideoJack to provide input for many webcams. Check the howto here ---> HOWTOVjackCamorama