Open Source Objective-C 2.0 Realtime Processing Software

CoGeWebKit is a Quartz Composer plugin that leverages WebKit to allow offscreen rendering of web technologies including interactive Flash and Java content. Control mouse input, browse normally and post process rendered web pages in Quartz Composer.

The GPUImage framework is a BSD-licensed iOS library that lets you apply GPU-accelerated filters and other effects to images, live camera video, and movies. In comparison to Core Image (part of iOS 5.0), GPUImage allows you to write your own custom filters, supports deployment to iOS 4.0, and has a slightly simpler interface. However, it currently lacks some of the more advanced features of Core Image, such as facial detection. GPUImage uses OpenGL ES 2.0 shaders to perform image and video manipulation much faster than could be done in CPU-bound routines. It hides the complexity of interacting with the OpenGL ES API in a simplified Objective-C interface. This interface lets you define input sources for images and video, attach filters in a chain, and send the resulting processed image or video to the screen, to a UIImage, or to a movie on disk. Images or frames of video are uploaded from source objects, which are subclasses of GPUImageOutput.

QC Player Plus is a simple Quartz Composer composition player. It takes the Apple-supplied "QC Player" example project, improves the rendering pipeline and adds the features you need for it to be useful in a live context.