I want to enable my screen as a video capture drive, so I can share (stream) my desktop screen instead my webcam.
I'm using Mint 12 (based on Ubuntu).
There are several software that help you doing that. For example:
And for another list of available software check that post: http://ostatic.com/blog/six-top-screen-capture-tools-for-linux#intro
Hope that this help.
VLC should, in theory be able to take a video stream from your desktop- with "screen://" as your input option and output it to another streaming source. However whether if will work with the software you have in mind would depend on what that software is.