title: iOS Video Editing - Is it possible to merge (side by side not one after other) two video files into one using iOS 4 AVFoundation classes?
body: <p>I know you could merge multiple clips and create a single video by appending one after other  using AVFoundation classes- AVURLAsset, AVMutableComposition, AVMutableCompositionTrack etc. </p>
  
  <p>There are apps like 'Video-Joiner' that do that.</p>
  
  <p>What I want to do is to juxtaposition 2 videos. </p>
  
  <p>My app idea - SelfInterviewer  please don't steal :)</p>
  
  <p>First I record video 1 using front facing camera standing left to the frame. Then video 2 standing to the right. In video 1 ask a question and in video 2 I answer. </p>
  
  <p>When I merge, it should appear like I am being interviewed by myself. </p>
  
  <p>I am almost sure its not feasible in iOS, just wanted to confirm. </p>
  
  <p>Also, if it's a no go, I would be interested in any server-side solutions - Upload the two videos and accomplish the same. I think adobe premiere can do it. Not sure if they have any public API. </p>
  
  <p>Appreciate any ideas. </p>
  
  <p>Thanks.</p>