$extension = 'ffmpeg';
            $extension_soname = 'php_ffmpeg.dll';
            $extension_fullname = PHP_EXTENSION_DIR . "/" . $extension_soname;

            // load extension
            if(false === extension_loaded($extension)) {
                if (false === dl($extension_soname))
                    throw new Exception("Can't load extension $extension_fullnamen");
            }

Warning: dl() [function.dl]: Not supported in multithreaded Web servers - use extension=ffmpeg.dll in your php.ini in C:wampwwwhunnyhiveapplicationmodulesdefaultcontrollersMyAccountController.php on line 314

[PHP_ffmpeg]
extension=php_ffmpeg.dll