Vidiöt is a VIDeo Input Output Transformer With a Touch of Functionality ;). It takes any video file or a connected camera and outputs it to Spout on Windows and Syphon on OS X.
Vidiöt was created at Delicode, the same people that developed Z Vector and NI mate.
Vidiöt is licensed as GPL. The source code can be found on GitHub.
Vidiöt.wtf is a Delicode Ltd product.