demo.xml

<Playlist>
  <Preroll>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
  </Preroll>
  <Midroll timeOffset="00:09:00">
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
  </Midroll>
  <Midroll timeOffset="00:16:56">
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
  </Midroll>
  <Midroll timeOffset="00:29:26">
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
  </Midroll>
  <Midroll timeOffset="00:36:35">
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
    <Ad>
      <![CDATA[https://gist.githubusercontent.com/KelvinJin/ff06196b6d981802372461971281f3da/raw/vast.xml]]>
    </Ad>
  </Midroll>
</Playlist>

vast.xml

<VAST xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="2.0" xsi:noNamespaceSchemaLocation="vast.xsd">
    <Ad id="1">
        <InLine>
            <AdSystem>IAS</AdSystem>
            <Creatives>
                <Creative id="1" sequence="1">
                    <Linear>
                        <Duration>00:00:27</Duration>
                        <VideoClicks>
                            <ClickThrough><![CDATA[http://www.integralads.com]]></ClickThrough>
                        </VideoClicks>
                        <MediaFiles>
                            <MediaFile delivery="progressive" type="video/mp4" bitrate="623" width="360" height="240" scalable="true" maintainAspectRatio="true">
                                <![CDATA[ https://mobile-static.adsafeprotected.com/static/creative/avid-certification/media/360x240.mp4 ]]>
                            </MediaFile>
                        </MediaFiles>
                    </Linear>
                </Creative>
            </Creatives>
            <Extensions>
                <Extension>
                    <AVID>
                        <AdVerifications>
                            <Verification>
                                <JavaScriptResource>
                                    <![CDATA[ https://mobile-static.adsafeprotected.com/static/creative/avid-certification/scripts/placement-avid-logging.js?placementId=1 ]]>
                                </JavaScriptResource>
                            </Verification>
                        </AdVerifications>
                    </AVID>
                </Extension>
                <Extension>
                    <AVID>
                        <AdVerifications>
                            <Verification>
                                <JavaScriptResource>
                                    <![CDATA[ https:////pixel.adsafeprotected.com/jload?anId=926405&campId=360x240&pubId=iOS&chanId=ios_7plus_1000&placementId=7plus_ios_1000 ]]>
                                </JavaScriptResource>
                            </Verification>
                        </AdVerifications>
                    </AVID>
                </Extension>
            </Extensions>
        </InLine>
    </Ad>
</VAST>