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Adobe AIR Development

Posts: 172
Registered: ‎01-17-2011
My Device: 9500 series
My Carrier: Airtel

How to generate Video Thumbnail

Hi All , 

How can i add video thumbnail from videos, these videos can be choosen from Playbook or by using camera.

I need to show the thumbnails of these videos.

I have tried several codes but me not getting any success.


protected function importVideo(event:MouseEvent):void
				var file:File = File.userDirectory;
				file.addEventListener(Event.SELECT, mediaSelectHandler);
				file.browseForOpen("Select File To Import", [acceptableTypes]);
			private function mediaSelectHandler(event:Event):void {
				vd = new VideoDisplay();
				vd.autoPlay = false;
				vd.horizontalCenter = 0;
				vd.verticalCenter = 0;
				vd.source = event.currentTarget.nativePath;
			private function getSnapShot(event:MouseEvent):void{
				var bd:BitmapData = new BitmapData(200, 200);
				var matrix:Matrix = new Matrix();
				bd.draw(vd, matrix);
				//save to hard drive
				var file:File = File.documentsDirectory;
				var imgfile:File = file.resolvePath("SampleThumbe.jpg");
				var jpegEncoder:JPEGEncoder = new JPEGEncoder(90);
				var jpegStream:ByteArray = jpegEncoder.encode(bd);
				var filestream:FileStream = new FileStream();
				filestream.open(imgfile, FileMode.WRITE);
				filestream.writeBytes(jpegStream, 0, jpegStream.length);

 ThanksIn Advance.

Posts: 427
Registered: ‎02-22-2012
My Device: BlackBerry Z10, BlackBerry Dev Alpha C, BlackBerry PlayBook
My Carrier: Bell

Re: How to generate Video Thumbnail

I found a decent looking article explaining this from doing a search here.


Where are you getting hung up?



Follow me on Twitter: @dustinmalik
Keep up to date on BlackBerry development: http://devblog.blackberry.com/
Posts: 172
Registered: ‎01-17-2011
My Device: 9500 series
My Carrier: Airtel

Re: How to generate Video Thumbnail

Hello Dmalik ,

This Example shows that how to get thumbnail image from Url link because it is attaching url to stream in video class object .

I want to get video thumbnail from my local device ,Ho can i do this.

I have tried many times , it is always return me white thumbnail image.

Thanks for your reply, Hope you can still help me.