Introduction to CL Eye Platform Actionscript 3.0 APIAuthor: CLDate: 01-18-2010
A high level framework for dealing with cameras in Adobe Flash and Actionscript 3.0. Provides several example applications showcasing video effects such as reflection, 3D transforms and saving image captures. lol
The CL-Eye DirectShow Component gives us consistent access to camera devices... this is what we will use in Adobe Flash. In this example we have a simple image capturing system however also provided in the SDK are some visual effects including 3D and reflection.
Lets look at how to access the camera in Flash 9/10 via Actionscript 3.0, we use standard AS3 commands to access and control the camera.
////////////////////////////////////////////////////////////////////////////////////////////
// CL-Eye Platform SDK Example
//
// Actionscript 3.0 - Adobe Flash
//
// This library allows you to use multiple PS3Eye cameras in your own applications.
//
// For updates, more information and downloads visit: eye.codelaboratories.com
//
// Copyright 2009 (c) Code Laboratories, Inc. All rights reserved.
//
////////////////////////////////////////////////////////////////////////////////////////////
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.*;
import flash.media.Camera;
import flash.media.Video;
import flash.text.TextField;
import flash.text.TextFormat;
import flash.text.TextFieldAutoSize;
public class Main extends Sprite
{
private var camera:Camera;
private var video:Video;
private var cameraBitmap:Bitmap;
private var n_text:TextField;
/**
* Main Constructor
*/
public function Main()
{
stage.scaleMode = StageScaleMode.NO_SCALE;
stage.align = StageAlign.TOP_LEFT;
camera = Camera.getCamera( );
camera.setMode( 320, 240, 60 );
video = new Video( camera.width, camera.height );
video.attachCamera( camera );
addChild( video );
cameraBitmap = new Bitmap( new BitmapData( camera.width, camera.height, false, 0x000000 ) );
cameraBitmap.y = video.height + 2;
addChild( cameraBitmap );
addKeyboardShortcuts();
initLabel();
addEventListener(Event.ENTER_FRAME, update);
}
/**
* Creates a label for framerate and stuff...
*/
public function initLabel():void
{
n_text = new TextField();
var format:TextFormat = new TextFormat();
format.font="Arial";
format.color = 0xFFFFFF;
format.size = 10;
n_text.width=500;
n_text.height=500;
n_text.x=10;
n_text.y=10;
//var count:int = 0;
//n_text.autoSize = TextFieldAutoSize.CENTER;
n_text.selectable = false;
n_text.defaultTextFormat = format;
//n_text.embedFonts = true;
n_text.text = "";
//n_text.blendMode = 'invert';
//n_text.alpha = 0;
this.addChild( n_text );
}
/**
* Add keyboard linkage event down
*/
protected function addKeyboardShortcuts():void
{
stage.addEventListener( KeyboardEvent.KEY_DOWN, keyDownHandler );
}
/**
* Add keyboard linkage event space key
*/
protected function keyDownHandler(event:KeyboardEvent):void
{
switch(event.keyCode)
{
case 32:
takeScreenShot();
break;
}
//For debug right now
trace( "keyDownHandler: " + event.keyCode );
}
/**
* Performs screenshot action.
*/
private function takeScreenShot():void
{
cameraBitmap.bitmapData.draw(video);
}
/**
* Updates the current camera effect
*/
private function update(e:Event):void
{
//effects.update();
n_text.x=10;
n_text.y=10;
n_text.text="";
n_text.appendText("Index: "+camera.index+"\n");
n_text.appendText("Name: "+camera.name+"\n");
n_text.appendText("FPS: "+camera.currentFPS+"\n");
n_text.appendText("Resolution: "+camera.width+"x"+camera.height+"\n");
n_text.appendText("Quality: "+camera.quality+"\n");
n_text.appendText("Activity: "+camera.activityLevel+"\n");
n_text.appendText("Bandwidth: "+camera.bandwidth+"\n");
n_text.appendText("Loopback: "+camera.loopback+"\n");
n_text.appendText("Motion Level: "+camera.motionLevel+"\n");
n_text.appendText("Motion Timeout: "+camera.motionTimeout+"\n");
n_text.appendText("Muted: "+camera.muted+"\n");
n_text.appendText("\n\n Spacebar to take screenshot");
}
}
}
Conclusion
In this very simple Actionscript 3.0 sample we have demonstrated the use of DirectShow to get audio and video working in Adobe Flash... you can get the source in the latest CL-Eye Platform SDK Research Home
