Roku Developer Program

[uarlive]

I am trying to get the duration of the ad to count down on the screen. Below is the code that I have working so far. The number of seconds is currently static and should be dymanic. Thanks in advance.

function ShowPreRoll(canvas, ad)
	result = true

	player = CreateObject("roVideoPlayer")
	' be sure to use the same message port for both the canvas and the player
	player.SetMessagePort(canvas.GetMessagePort())
  player.SetDestinationRect(canvas.GetCanvasRect())
  player.SetPositionNotificationPeriod(1)
  timer = CreateObject("roTimespan")
  timer.mark()
--> Problem area  ad_duration = ad.length - timer

  ' set up some messaging to display while the pre-roll buffers

	deviceInfo = CreateObject( "roDeviceInfo" )
	displaySize = deviceInfo.GetDisplaySize()
	
  

	overlay = {
	    TargetRect: {
	        x: Int( displaySize.w / 2 ) - Int( 336 / 2 ),
	        y: Int( displaySize.h / 2 ) - Int( 375 / 2 ),
	        w: 336,
	        h: 210
	    }
	}

	loadingText = {
--> Problem area	    Text: "Your video will begin after this message" + ad_duration.ToStr() + " seconds",
	    TextAttrs: {
	        Font: "Medium",
	        VAlign: "Bottom",
			Color: "#FFFFFF",
	    },
	    TargetRect: {
          x: Int( displaySize.w / 2 ) - Int( 1180 / 2 ),
          y: Int( displaySize.h / 2 ) - Int( -600 / 2 ),
          w: 575,
          h: 30
	    }
	}
  canvas.Show()

Type Mismatch. (runtime error &h18) in ...:/source/VAST_VideoScreen.brs(52)

052: ad_duration = ad.length - timer
Backtrace:

[destruk]

"timer" is an object, you are trying to subtract it as an integer, but it isn't an integer.

Integer TotalSeconds(Void)
• Returns the total number of seconds from the “Mark” point.

You should be subtracting timer.totalseconds() which returns as an integer.

Even using that though, you'll want to loop it or nest it inside a routine so it will constantly repeat the subtraction and display until it reaches 0.

[uarlive]

Thanks. That pointed me in the right direction.