Homebrew Camera App

I am trying to create a homebrew app that will iterate through taking of photos (for use in a 3D scanning setup (Photogrammetry))

I would like the app to:
-Take Photo with the left camera
-Save Photo
-Take Photo with the right camera
-Save Photo
-Beep (over headphone jack - to indicate 'end' of a cycle)
-wait 10 sec
-repeat

I have tried to use the Example camera app from CtruLib (to figure out how to use the camera), and the example program does not seem to be writing any data to the top...

Homebrew Camera App