Super Mixer is a project I started in summer 2009 to experiment with OpenGL for the real-time mixing of several videos. In short, it is a ’V-Jeying’ program for mixing many video files in life performances.
I won’t enter into too much details because I want to keep some ideas in a corder before eventually releasing/publishing them. I can however present the general idea; each video is a layer (a-la photoshop) and its transparency and blending options can be altered in real time. OpenGL makes the rendering extremely fast and the video can be rendered at several places on screen (texture) to allow for a live preview of the film while manipulating it in the GUI.
There are more features and up-comming features, but all is in an alpha-stage for the moment.