Hi, From quite a few time I am trying to integrate VAST in my roku code, but unfortunately so far i was able to just display the preroll ads using
Library "Roku_Ads.brs"
sub Main(params)
print "11111"
' lengthy (20+ min.) TED talk to allow time for testing multiple ad pods
videoContent = { streamFormat : "mp4" }
videoContent.stream = { url: "http://video.ted.com/talks/podcast/DavidKelley_2002_480.mp4",
bitrate: 800,
quality: false
}
PlayContentWithAds(videoContent)
end sub
Function PlayVideoContent(content as Object) as Object
' roVideoScreen just closes if you try to resume or seek after ad playback,
' so just create a new instance of the screen...
videoScreen = CreateObject("roVideoScreen")
videoScreen.SetContent(content)
' need a reasonable notification period set if midroll/postroll ads are to be
' rendered at an appropriate time
videoScreen.SetPositionNotificationPeriod(1)
videoScreen.SetMessagePort(CreateObject("roMessagePort"))
videoScreen.Show()
return videoScreen
End Function
Sub PlayContentWithAds(videoContent as Object)
canvas = CreateObject("roImageCanvas")
canvas.SetLayer(1, {color: "#000000"})
canvas.SetLayer(2, {text: "Loading..."})
canvas.Show()
adIface = Roku_Ads()
print "Roku_Ads library version: " + adIface.getLibVersion()
' Normally, would set publisher's ad URL here. Otherwise uses default Roku ad server (with single preroll placeholder ad)
'adIface.setAdUrl()
adIface.setAdUrl("http://pubads.g.doubleclick.net/gampad/ads?slotname=/124319096/external/ad_rule_samples&sz=640x480&ciu_szs=300x250&unviewed_position_start=1&output=xml_vast3&impl=s&env=vp&gdfp_req=1&ad_rule=0&vad_type=linear&vpos=preroll&pod=1&ppos=1&lip=true&min_ad_duration=0&max_ad_duration=30000&cust_params=deployment%3Ddevsite%26sample_ar%3Dpremidpost&url=&video_doc_id=short_onecue&cmsid=496&kfa=0&tfcd=0")
adPods = adIface.getAds()
playContent = adIface.showAds(adPods) ' show preroll ad pod (if any)
curPos = 0
if playContent
videoScreen = PlayVideoContent(videoContent)
end if
closingContentScreen = false
contentDone = false
while playContent
videoMsg = wait(0, videoScreen.GetMessagePort())
if type(videoMsg) = "roVideoScreenEvent"
if videoMsg.isStreamStarted()
canvas.ClearLayer(2)
end if
if videoMsg.isPlaybackPosition()
' cache current playback position for resume after midroll ads
curPos = videoMsg.GetIndex()
end if
if not closingContentScreen ' don't check for any more ads while waiting for screen close
if videoMsg.isScreenClosed() ' roVideoScreen sends this message last for all exit conditions
playContent = false
else if videoMsg.isFullResult()
contentDone = true ' don't want to resume playback after postroll ads
end if
' check for midroll/postroll ad pods
adPods = adIface.getAds(videoMsg)
if adPods <> invalid and adPods.Count() > 0
' must completely close content screen before showing ads
' for some Roku platforms (e.g., RokuTV), calling Close() will not synchronously
' close the media player and may prevent a new media player from being created
' until the screen is fully closed (app has received the isScreenClosed() event)
videoScreen.Close()
closingContentScreen = true
end if
else if videoMsg.isScreenClosed()
closingContentScreen = false ' now safe to render ads
end if ' closingContentScreen
if not closingContentScreen and adPods <> invalid and adPods.Count() > 0
' now safe to render midroll/postroll ads
playContent = adIface.showAds(adPods)
playContent = playContent and not contentDone
if playContent
' resume video playback after midroll ads
videoContent.PlayStart = curPos
videoScreen = PlayVideoContent(videoContent)
end if
end if ' !closingContentScreen
end if ' roVideoScreenEvent
end while
if type(videoScreen) = "roVideoScreen" then videoScreen.Close()
End Sub
Here i understand that setAdUrl is any VMAP url or single VAST URL. My problem is that I have three VAST url, each needed to be played as pre roll, mid roll and post roll. There is no single XML file which fetches these VAST Urls. Using the above i was able to play pre roll. For midroll I searched and get
adBreakSchedule = [adBreakTime1, adBreakTime2, adBreakTime3]
scheduledPods = []
adBreakIndex = 0
for each ad in adPods[0].ad
' schedule one ad per ad break
scheduledPods.Push({viewed : false,
renderSequence : "midroll",
duration : ad.duration,
renderTime : adBreakSchedule[adBreakIndex],
ads : [ad]
})
adBreakIndex = adBreakIndex + 1
end for
But there is no proper implementation of this on Net or forum. Secondly i tried creating my own custom xml file and use those three VAST Url. I know how to fetch the xml in file system, but i was wondering how to create one by myself and place it in setAdUrl like this
adIface.setAdUrl("file://pkg:/vast.xml")Need help.
