PHPVibe custom VAST TAG for Video Ads

<VAST version="2.0">
  <Ad id="static">
    <InLine>
      <AdSystem>Vibe</AdSystem>
      <AdTitle>Vibe</AdTitle>
      <Impression>https://www.domain.com/</Impression>
      <Creatives>
        <Creative>
        <Linear skipoffset="00:00:05">
            <Duration>00:00:38</Duration>
         <CustomTracking>
           <TrackingEvents>
             <Tracking event="skip">
             https://domain.com/pixel.png
             </Tracking>
             </TrackingEvents>
             </CustomTracking>
            <VideoClicks>
              <ClickThrough>https://www.domain.com/</ClickThrough>
            </VideoClicks>
            <MediaFiles>
              <MediaFile id="someid" delivery="progressive" width="1280" height="720" bitrate="2081" scalable="true" maintainAspectRatio="true">
               https://www.domain.com/preroll.webm
              </MediaFile>
              <MediaFile id="someotherid" delivery="progressive" width="1920" height="1080" type="video/mp4" bitrate="4211" scalable="true" maintainAspectRatio="true">
               https://www.domain.com/vast.mp4
              </MediaFile>
            </MediaFiles>
           </Linear>
        </Creative>
      </Creatives>
    </InLine>
  </Ad>
</VAST>