视 频

//创建一个 NetConnection 对象
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var netConnection:NetConnection = new NetConnection();
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/*如果连接到没有使用服务器的FLV 文件，则通过向 connect() 方法传递值
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null，来播放流式 FLV 文件*/
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netConnection.connect(null);
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/*创建一个 NetStream 对象（该对象将 NetConnection 对象作为参数）并
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指定要加载的 FLV 文件*/
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var netStream:NetStream = new NetStream(netConnection);
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netStream.play("test.flv");
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/*使用 Video 类的 attachNetStream() 方法附加以前创建的 NetStream
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对象（视频实例名为vid）*/
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vid.attachNetStream(netStream);
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//音量初始值
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var yl:Number = 0.5;
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var nsyl:SoundTransform = new SoundTransform();
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//nsyl.volume=yl
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//播放进度与加载进度影片缩放为0
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bfjd_mc.scaleX = jzjd_mc.scaleX = 0;
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//申明变量播放与下载百分比以及总时间（秒）的初始值为0
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var bf_percent:int = 0;
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var xz_percent:int = 0;
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var _duration:Number = 0;
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//指定在其上调用回调方法的对象
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var _client:Object = new Object();
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_client.onMetaData = onMetaData;
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netStream.client = _client;
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//按钮可见性与添加侦听事件
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play_btn.visible = false;
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pause_btn.visible = true;
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pause_btn.addEventListener(MouseEvent.CLICK, zt);
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play_btn.addEventListener(MouseEvent.CLICK, bf);
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//忽略错误
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netStream.addEventListener(AsyncErrorEvent.ASYNC_ERROR, asyncErrorHandler);
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function asyncErrorHandler(event:AsyncErrorEvent):void {
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}
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//暂停
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function zt(event:MouseEvent):void {
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    play_btn.visible = true;
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    pause_btn.visible = false;
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    //视频暂停
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    netStream.pause();
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}
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//播放
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function bf(event:MouseEvent):void {
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    play_btn.visible = false;
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    pause_btn.visible = true;
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    //恢复回放暂停的视频流
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    netStream.resume();
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    addEventListener(Event.ENTER_FRAME, gx);
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}
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//接收在正播放的 FLV 文件中嵌入的描述性信息时调度
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function onMetaData(data:Object):void {
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    _duration = data.duration;
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}
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//申明变量播放信号
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var bfxh:String;
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//侦听视频流的开始和末尾
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netStream.addEventListener(NetStatusEvent.NET_STATUS, statusHandler);
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function statusHandler(event:NetStatusEvent):void {
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    bfxh = event.info.code;
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}
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//不断更新进度与文本的显示
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addEventListener(Event.ENTER_FRAME, gx);
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function gx(event:Event):void {
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    if (netStream.bytesLoaded > 0){
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        //加载进度
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        xz_percent = netStream.bytesLoaded / netStream.bytesTotal * 100;
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        jzjd_mc.scaleX = xz_percent / 100;
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    }
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    if (_duration > 0 && netStream.time > 0){
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        //播放进度
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        bf_percent = netStream.time / _duration * 100;
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        bfjd_mc.scaleX = bf_percent / 100;
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    }
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    if (bfxh == "NetStream.Play.Stop"){
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        //播放完毕时的设置
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        bf_percent = 0;
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        bfjd_mc.scaleX = 0;
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        netStream.close();
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        //netStream.pause();
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        //netStream.seek(0); //将播放头置于视频开始处
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        play_btn.visible = true;
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        pause_btn.visible = false;
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    }
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    //文本显示内容
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    bftxt.text = Math.round(netStream.time / 60) + ":" + Math.round(netStream.time % 60);
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    zcdtxt.text = Math.round(_duration / 60) + ":" + Math.round(_duration % 60);
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    //音量控制
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    yl = (ylhk_mc.x - 345) / 50;
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    ylt_mc.scaleX = yl;
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    nsyl.volume = yl;
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    netStream.soundTransform = nsyl;
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}
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//音量滑块拖动控制
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var fw:Rectangle = new Rectangle(345, 328, 50, 0); //拖动范围
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ylhk_mc.addEventListener(MouseEvent.MOUSE_DOWN, ylhkax);
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ylhk_mc.addEventListener(MouseEvent.MOUSE_UP, ylhksk);
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stage.addEventListener(MouseEvent.MOUSE_UP, ylhksk);
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function ylhkax(event:MouseEvent):void {
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    ylhk_mc.startDrag(false, fw);
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}
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function ylhksk(event:MouseEvent):void {
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    ylhk_mc.stopDrag();
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}