ActionScript3捕获摄像头

ActionScript3捕捉摄像头:

package { 
    import flash.display.Sprite; 
    import flash.text.*; 
    import flash.media.Camera; 
    import flash.events.StatusEvent; 
    import flash.events.ActivityEvent; 
    import flash.media.Video; 

    public class CameraEx extends Sprite 
    { 
        private var label:TextField; 
        private var camera:Camera; 
         
        public function CameraEx() 
        { 
            label=addLabel("CameraEx"); 
             
            camera=Camera.getCamera(); 
             
            if(camera!=null){ 
                camera.addEventListener(StatusEvent.STATUS,statusHandler); 
                camera.addEventListener(ActivityEvent.ACTIVITY,activityHandler); 
                 
                var video:Video=new Video(camera.width,camera.height); 
                video.attachCamera(camera); 
                addChild(video); 
                video.x=20; 
                video.y=20; 
            } 
            else{ 
                label.text="不能使用"; 
            } 
        } 
         
        private function statusHandler(evt:StatusEvent):void{ 
            if(camera.muted) label.text="不能使用"; 
        } 
         
        private function activityHandler(evt:ActivityEvent):void{ 
            if(evt.activating){ 
                label.text="检测开始"; 
            } 
            else{ 
                label.text="检测停止"; 
            } 
        } 
         
        private function addLabel(text:String):TextField{ 
            var label:TextField=new TextField(); 
            label.autoSize=TextFieldAutoSize.LEFT; 
            label.text=text; 
            addChild(label); 
            return label; 
        } 
    } 
}

效果: