rendering to video file

Related to this post http://forum.processing.org/topic/audio-file-as-input 

I am trying to create a "music video" with processing, but my computer can only display this at 7 fps: processing-2.0b7\modes\java\examples\Demos\Performance\CubicGridImmediate

I would like to bump it up to 1280*720 and ~25fps. Since the length of the processing would be finite (determined by length of audio file or set as a constant) I am wondering how to "render"/output to a video format file (mpeg/avi/mov/?).

Thanks!