1. Limit the sites that links can be added from. For example, if a link is from Putlocker, Wootly, or Loombo, the link will be accepted. If it's a link from Youtube, the link will not be accepted. I can provide you a list of accepted sites.
2. Can we adjust the Iframe to show the video's width and hight based on where the link is coming from? In your Youtube example, it looks awesome. In the link from Wootly, it shows scroll bars and looks unkept.