Pause and play video when in viewport

Question

I was experimenting with play and pause when a video is within the viewport... when I was searching around I found the following code.. which unfortunately didn\'t work:

Answer 1

$(window).scroll(function(e)
  {
    var offsetRange = $(window).height() / 3,
        offsetTop = $(window).scrollTop() + offsetRange + $("#header").outerHeight(true),
        offsetBottom = offsetTop + offsetRange;

    $(".video").each(function () { 
      var y1 = $(this).offset().top;
      var y2 = offsetTop;
      if (y1 + $(this).outerHeight(true) < y2 || y1 > offsetBottom) {
        this.pause(); 
      } else {
        this.play();
      }
    });
});