なんとなくビデオエフェクト
よくわからんエフェクトができた
// forked from ll_koba_ll's 動体検知
// write as3 code here..
// よくわからんエフェクトができた
package {
import flash.display.*;
import flash.events.*;
import flash.geom.*;
import flash.media.Camera;
import flash.media.Video;
import flash.filters.*;
[SWF(frameRate="10", backgroundColor="#000000")]
public class VideoEffect extends Sprite
{
private var camera:Camera;
private var video:Video;
private var button:Sprite;
private var bmd:BitmapData;
private var now:BitmapData;
private var before:BitmapData;
private var rect:Rectangle;
private var pt:Point;
private var blur:BlurFilter;
private var cf:ColorMatrixFilter;
private var mtx1px:Matrix;
public function VideoEffect()
{
addEventListener(Event.ADDED_TO_STAGE, init);
}
private function init(e:Event = null):void
{
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
camera = Camera.getCamera();
if (camera != null)
{
setupCamera();
}
bmd = new BitmapData(camera.width*2, camera.height*2 ,true,0x00ffffff);
var bmp:DisplayObject = addChild(new Bitmap(bmd));
bmp.scaleX = 1.5;
bmp.scaleY = 1.5;
addEventListener(Event.ENTER_FRAME, loop);
now = new BitmapData(camera.width*2, camera.height*2);
before = new BitmapData(camera.width*2, camera.height*2);
rect = new Rectangle(0, 0, camera.width*2, camera.height*2);
pt = new Point(0, 0);
blur = new BlurFilter(4,4,4);
cf = new ColorMatrixFilter([-1, 0, 0, 0, 255,
0, -1, 0, 0, 255,
0, 0, -1, 0, 255,
0, 0, 0, 255, 0] );
mtx1px = new Matrix();
mtx1px.translate(1,1);
}
private function setupCamera():void
{
video = new Video(camera.width*2, camera.height*2);
video.attachCamera(camera);
}
private function loop(e:Event):void
{
now.lock();
before.lock();
bmd.lock();
now.draw(video);
now.draw(before, new Matrix(), new ColorTransform(), BlendMode.DIFFERENCE);
var ret:uint = now.threshold(now, rect, pt, ">", 0xFF111111, 0xFFffffff);
before.draw(video, mtx1px);
bmd.draw(now);
bmd.applyFilter(bmd, bmd.rect, pt, blur);
bmd.applyFilter(bmd, bmd.rect, pt, cf);
now.unlock();
before.unlock();
bmd.unlock();
}
}
}