How to use HDR with custom AVFoundation based Camera app?

Question

I use the AVFoundationframework to create a custom camera app.

Is it possible to capture a photo with HDR for a custom camera app, i.e., is HDR somewhere exposed in the camera api?

Answer 1

Had the same question and found an answer in this SA question.

HDR is unique to the Camera.app from Apple and is not available to developers through an API.