HTML5 Media - HTML5 Advertising - page 178

<ClickThrough> http://www.somedomain.com < /ClickThrough>
<ClickTracking> http://tracking/click < /ClickTracking>
</VideoClicks>
<MediaFiles>
<MediaFile delivery="progressive" type="video/x-flv" bitrate="800" width="640" height="360"
scalable="true" maintainAspectRatio="true">
http://cdn.somedomain.com/video < /MediaFile>
</MediaFiles>
</Linear>
</Creative>
<Creative AdID="12345Companion">
<CompanionAds>
<Companion width="300" height="250">
<StaticResource creativeType="image/jpeg"> http://cdn.somedomain.com/some.jpg </StaticResource>
<TrackingEvents>
<Tracking event="creativeView"> http://tracking </Tracking>
</TrackingEvents>
<CompanionClickThrough> http://www.somedomain.com < /CompanionClickThrough>
</Companion>
</CompanionAds>
</Creative>
</Creatives>
</InLine>
</Ad>
</VAST>

As you can see from the example, the XML outlines many useful values for the video player to handle including
various ad server IDs, creative and media URLs, tracking nodes, and sizes of the creative. From this information, the
video player will have everything it needs to deploy the ad.

■ there are different versions of the ad that can be served: linear and nonlinear. Linear means it happens before
the video content, whereas nonlinear happens in the middle of the content, usually as an overlay.

Note

If you were to test the previous VAST ad tag, it would fail because it's just a mock; however, you can
see how some of these sample tags work by heading over to the IAB's site and downloading some samples at
http://iab.net/guidelines/508676/digitalvideo/vsuite/vast/vast_copy/vast_xml_samples . Once you
get a sample, swing on over to Google's VAST Inspector located at http://developers.google.com/interactive-
media-ads/docs/vastinspector_dual and paste in the ad tag. You should see some example content, as shown
in Figure 7-14 .