title: Converting a regular Youtube 'link' into an embedded video
body: <p>My goal: I am trying to allow users to embed a link to a Youtube video in my site, while giving me control over the player's settings.</p>
  
  <p>I would like to do this by only asking the user to supply the link (not the entire embed code), from where I can somehow paste that link into the embed code.</p>
  
  <p>I've tried doing a simple substitution with a few Youtube links (<code>http://youtu.be/...</code>) but they don't work, saying 'movie not loaded'. Is there a dependable way to do this?</p>