flex+php在线拍照一[51空间]

昨天用flex+php做了一个在线拍照的小东东，可以实现会员头像的实时在线拍照更新。
首先来讲一讲原理：
1、将camera的内容显示在video中，这个不懂的参考actionscript的手册，里面有详细的讲解以及代码，
2、定义一下BitmapData对象，
m_pictureBitmapData = new BitmapData(DEFAULT_CAMERA_WIDTH,DEFAULT_CAMERA_HEIGHT);
然后将video的内容写进BitmapData对象里， m_pictureBitmapData.draw(video,new Matrix());
3、从左到右，从上到下，一个像素一个像素的读取BitmapData的rgb值，所有的rgb值用","分开，写进一个字符串里，
for(var i:int = 0; i < DEFAULT_CAMERA_WIDTH; i++)
                {
                    for(var j:int = 0; j < DEFAULT_CAMERA_HEIGHT; j++)
                    {
                        if(m_pictureData.length > 0)
                        {
                            m_pictureData += "," + m_pictureBitmapData.getPixel(i,j).toString();
                        }
                        else
                        {
                            m_pictureData = m_pictureBitmapData.getPixel(i,j).toString();
                        }
                    }
                }
                service.getOperation("createjpeg").send(pic_width,pic_height,m_pictureData);//用amfphp进行保存
4、在服务端就把那些rgb值提取出来，一个像素一个像素的画点：
$img=imagecreatetruecolor($width,$height);
  $m_tempPics=explode(',',$bitmap_data);
   for ($i = 0; $i < $width; $i++)
            {
                for ($j = 0; $j < $height; $j++)
                {
                    $pic_argb =(int) $m_tempPics[$i * $height + $j];
                    imagesetpixel($img,$i,$j,$pic_argb);
                }
            }
        imagejpeg($img,"../../image/header/0.jpg");
        imagedestroy($img);
        return true;
5、详细的源码在附件里面，前面只是些重要提示代码。嗯，要懂得amfphp,还有flex。
还有什么不清楚的，
下面来看看 test.html文件
if ( hasProductInstall && !hasRequestedVersion ) {
 // MMdoctitle is the stored document.title value used by the installation process to close the window that started the process
 // This is necessary in order to close browser windows that are still utilizing the older version of the player after installation has completed
 // DO NOT MODIFY THE FOLLOWING FOUR LINES
 // Location visited after installation is complete if installation is required
 var MMPlayerType = (isIE == true) ? "ActiveX" : "PlugIn";
 var MMredirectURL = window.location;
    document.title = document.title.slice(0, 47) + " - Flash Player Installation";
    var MMdoctitle = document.title;
 AC_FL_RunContent(
  "src", "playerProductInstall",
  "FlashVars", "MMredirectURL="+MMredirectURL+'&MMplayerType='+MMPlayerType+'&MMdoctitle='+MMdoctitle+"",
  "width", "100%",
  "height", "100%",
  "align", "middle",
  "id", "hphoto",
  "quality", "high",
  "bgcolor", "#869ca7",
  "name", "hphoto",
  "allowScriptAccess","sameDomain",
  "type", "application/x-shockwave-flash",
  "pluginspage", "http://www.adobe.com/go/getflashplayer"
 );
} else if (hasRequestedVersion) {
 // if we've detected an acceptable version
 // embed the Flash Content SWF when all tests are passed
 AC_FL_RunContent(
   "src", "hphoto",
   "width", "100%",
   "height", "100%",
   "align", "middle",
   "id", "hphoto",
   "quality", "high",
   "bgcolor", "#869ca7",
   "name", "hphoto",
   "flashvars",'historyUrl=history.htm%3F&lconid=' + lc_id + '',
   "allowScriptAccess","sameDomain",
   "type", "application/x-shockwave-flash",
   "pluginspage", "http://www.adobe.com/go/getflashplayer"
 );
  } else {  // flash is too old or we can't detect the plugin
    var alternateContent = 'Alternate HTML content should be placed here. '
   + 'This content requires the Adobe Flash Player. '
    + 'Get Flash';
    document.write(alternateContent);  // insert non-flash content
  }
// -->