title: How to add event listener to videojs when start to play a video?
body: <p>How do I add event listener to videojs when the video is start to play? (this event should be called at the begging of the play)?</p>
  
  <p>I searched on <a href="https://docs.videojs.com/docs/api/player.html#Eventsended" rel="noreferrer">Player Events docs</a>, but I can't find any event that tell me "now the video is start play".</p>