How Do I Get An Oval PIP?

How to get an oval PIP: Using the title filter as an oval overlay

• In Video 1 track comes the footage that will serve as background
  
• In video 2 track comes the footage that will be inside of the oval
  
• Place the titling filter under the video 2 track, click the background tab,
  set background and softness,choose rectangle or oval,click more tab and set
  to alpha.