Hello everyone, I'm new to CHDK but already deeply impressed with the possibilities it opens up!
I'm thinking of a security camera like application, doing circular video recording, but I don't know if that's possible or not.
Is it technically possible to have the camera alternate between 2 or more output files, switching over after a predefined duration or file size? This would then function as a kind of circular buffer. If something interesting happens, you can just stop the recording; by playing the video fragments in the correct order, you always have nearly a memory card's worth of video data leading up to that event (for N possible fragments, you'll have N-1 complete fragments and 1 smaller fragment where the recording was stopped).