We've worked with the Cardinal Path team quite a bit on projects using the Progress Events framework. I was asked to build out a setup into Google Tag Manager based off the instructions found here: http://www.cardinalpath.com/youtube-video-tracking-with-google-tag-manager-v2-and-universal-analytics-a-step-by-step-guide/

gtm_vidyard_event_listener.html

<script type='text/javascript' src="//play.vidyard.com/v0/api.js"></script>
<script type='text/javascript' src="//play.vidyard.com/v1/progress-events.js"></script>
<script type='text/javascript'>
  VidyardProgressEvents(function (result){
    if (result.event==1) {
      dataLayer.push({
          event: 'vidyard',
          eventCategory: 'video',
          eventAction: "Play",
          eventLabel: result.player.metadata.chapters_attributes[result.chapter].video_attributes.name
      });
    } else {
      dataLayer.push({
          event: 'vidyard',
          eventCategory: 'video',
          eventAction: "Watched " + result.event + "%",
          eventLabel: result.player.metadata.chapters_attributes[result.chapter].video_attributes.name
      });
    }   
  }, [1,25,50,75,95]);
</script>

vidyard_present.js

function () {
   var patt = /play.vidyard.com/g;
   for (var e = document.getElementsByTagName('script'), x = e.length; x--;)
   if (patt.test(e[x].src)){
      return true;
   }
   return false;
}