Capturing a still image

- [Instructor] Now that we've set up our UI…to handle the tap of the shutter button,…we need to tell AV Foundation that we need a still image.…In order to do that,…we need to go to out camera.swift object…inside of our reusable framework.…Scroll down to where you see var video output.…You'll notice that to this point,…all we've added onto our inputs and outputs…for AV capture session,…is an AV capture video data output for our output.…However, when we capture a still image,…we need to also have a photo output.…Underneath var video output, type var photo output,…and you'll make this of type AV capture photo output,…and construct it with parentheses.…

Now that we've done this,…you'll notice that our update function is a little stale…and it could benefit from some refactoring.…The input and the output that we've specified…aren't the only ones we're getting rid of.…Let's go ahead and scroll down to…underneath the function for capture still image.…And a function called recycle device IO.…We'll type it here: func recycle device IO,…