什么是从位图数据获得JPG的simpliest方式 [英] what is the simpliest way to get jpg from bitmapData

问题描述

我需要转换的位图数据从影片剪辑抢到JPEG或PNG。有一些LIB是什么？

I need to convert bitmapData grabbed from movie clip to jpeg or png. Is there some lib for that?

推荐答案

看这个例子中取部分的转换字节的形象，我已经给整个供大家参考。

see this example in take portion that convert byte to image, i have given whole for your reference

package {
    import encoding.JPGEncoder;
    import flash.display.Bitmap;
    import flash.display.BitmapData;
    import flash.display.Loader;
    import flash.display.Sprite;
    import flash.utils.ByteArray;
    import flash.events.Event

    public class Converter extends Sprite {

        [Embed(source = "image.jpg")]
        private var image:Class

        private const QUALITY:uint = 80;

        public function Converter():void {

            var bitmap:Bitmap = new image();
            var bitmapData:BitmapData = bitmap.bitmapData;

            //encode BitmapData to JPG 
            var encoder:JPGEncoder = new JPGEncoder(QUALITY);
            var rawBytes:ByteArray = encoder.encode(bitmap.bitmapData);

            //decode JPG ByteArray back to BitmapData
            var loader:Loader = new Loader();
            loader.contentLoaderInfo.addEventListener(Event.COMPLETE, getBitmapData)
            loader.loadBytes(rawBytes); 
        }

        private function getBitmapData(e:Event):void  {
            var decodedBitmapData:BitmapData = Bitmap(e.target.content).bitmapData
            trace(decodedBitmapData);
        }
    }   
}

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