VAST is short for Video Ad Serving Template which is a standard template that helps video players work with a publisher’s ad server.
Through the script, video players can find out which ads to play, how to display them, the length of the ad, functionality involved and more. It enables in-stream video ads to be served across VAST compliant video players.
Google AdSense is supported as well. Here are the exact steps to insert that code for your video:
Within the video editing page, navigate to Advanced Options >> VAST Feed:
Then copy and paste the generated code into your Feed field: