var nc:NetConnection = new NetConnection();
nc.connect(null);

var ns:NetStream = new NetStream(nc);

var vid:Video = new Video(320, 240);
this.addChild(vid);

vid.attachNetStream(ns);

ns.play("http://www.linkmobile.net/yf/Wanted_T4.flv");

ns.addEventListener(NetStatusEvent.NET_STATUS, netstat);

function netstat(stats:NetStatusEvent)
{
        //trace(stats.info.code);
}

var netClient:Object = new Object();
netClient.onMetaData = function(meta:Object)
{
        trace(meta.width);
};

ns.client = netClient;

最基本的flv播放器

ActionScript 3