I have some basic experience with video and imagery in Android using SurfaceViews, mediarecorder, VideoView etc. What I would like to do however is to composite multiple layers of video (generally with a top layer having an alpha channel to expose the layer behind it) in a buffer and save the result to a new video file. What would also be useful is to be able to perform compositing functions like "screen", "multiply", or "overlay".
Any ideas how this could be done?
