title: Zoom upwards while recording video in Swift
body: <p>I'm trying to do something like Snapchat does, while you are recording, if you drag upwards your finger, the video is zoomed. Does anyone know how to do it in Swift3 or if there's a pod that I can based on. </p>
  
  <p>I'm using <a href="https://github.com/rFlex/SCRecorder" rel="nofollow noreferrer">SCRecorder</a> to record the video, which is based on AVFoundation Framework.</p>
  
  <p>Here's <a href="https://www.youtube.com/watch?v=_y-3py-mm6M" rel="nofollow noreferrer">a link</a> of a video showing exactly what I want to do.</p>
  
  <p>Thank you!</p>