Flash 加载flv

 需求：现在封装一个类用于方便加载flv视频。能够实现基本的播放功能.

 

  

 

package    
{   
    import flash.media.*;   
    import flash.events.*;   
    import flash.net.*;   
    import flash.display.Sprite;   
    import flash.display.Stage;   
    import flash.display.StageDisplayState;   
    import FVideo;   
    import flash.geom.Rectangle;   
  
    public class FLVPlayer extends EventDispatcher   
    {   
        private var video:FLVideo;   
        private var playhead:Number=0;   
        private var loaded:Boolean=false;   
        private var loops:int;   
        private var stream:NetStream;   
        private var autoplay:Boolean=false;   
        private var videoURL:String=null;   
        public var contain:Sprite=new Sprite();   
        private var duration:Number=0;//计算总的时间长度   
        private var sound:SoundTransform=new SoundTransform();   
        public function FLVPlayer()   
        {   
            super();   
            init();   
        }   
        private function init():void  
        {   
            video=new FLVideo();   
            var connection:NetConnection=new NetConnection();   
            connection.connect(null);   
            stream=new NetStream(connection);   
            var client:Object=new Object();   
            client.onMetaData=onMetaData;//回调函数，获取总的时间   
            stream.client=client;   
        }   
        public function load(url:String=null,autoplay:Boolean=false,bufferSeconds:Number=1):void  
        {   
            if (video.url == null && percentLoaded == 0)   
            {   
                video.url=url;   
                autoplay=autoplay;   
                video.attachNetStream(stream);   
                contain.addChild(video);//添加容器   
                stream.bufferTime=bufferSeconds;//设置缓冲时间   
                stream.addEventListener(NetStatusEvent.NET_STATUS,netStatusHandler);   
                stream.addEventListener(AsyncErrorEvent.ASYNC_ERROR,netAsyncErrorHandler);   
            }   
        }   
        //添加多视频,进行管理   
        //public function add(url:String):void   
        //{   
        //   
        //}   
        private function onMetaData(data:Object):void  
        {   
            duration=data.duration;   
        }   
        private function netStatusHandler(event:NetStatusEvent):void  
        {   
            switch (event.info.code)   
            {   
                case "NetConnection.Connect.Success" :   
                    break;   
                case "NetStream.Play.StreamNotFound" :   
                    throw new Error("错误");   
                    break;   
                case "NetStream.Play.Stop" :   
                    stream.seek(0);   
                    //close();   
                    break;   
            }   
        }   
        private function netAsyncErrorHandler(event:AsyncErrorEvent):void  
        {   
  
        }   
        /*   
          @ buffertime设置缓冲时间  
          @ bufferLength 数据当前存在于缓冲区中的秒数。  
          @  
         */  
        public function get bufferLength():Number   
        {   
            return stream.bufferLength;   
        }   
        public function set bufferTime(time:Number):void  
        {   
            stream.bufferTime=time;   
        }   
        public function get bufferTime():Number   
        {   
            return stream.bufferTime;   
        }   
  
        public function get FVideo():Video   
        {   
            return video;   
        }   
        //设置和返回视频播放位置(以时间为单位)   
        public function get position():Number   
        {   
            return stream.time;   
        }   
        public function set position(time:Number):void  
        {   
            stream.seek(time);   
        }   
        /*  
           @设置和返回视频的声音大小  
         */  
        public function get volume():Number   
        {   
            var volumes:Number=sound.volume;   
            stream.soundTransform=sound;   
            return volumes;   
        }   
        public function set volume(volumes:Number):void  
        {   
            sound.volume=volumes;   
            stream.soundTransform=sound;   
        }   
  
        //获取返回视频的总的时间   
        public function get totalTime():Number   
        {   
            return duration;   
        }   
        //检测是不是在播放   
        public function get playing():Boolean   
        {   
            return true;   
        }   
        //加载进度   
        public function get bytesLoaded():uint   
        {   
  
            return stream.bytesLoaded;   
        }   
        //加载总量   
        public function get bytesTotal():uint   
        {   
            return stream.bytesTotal;   
        }   
        //返回加载进度   
        public function get percentLoaded():Number   
        {   
            var percent:Number=stream.bytesLoaded / stream.bytesTotal;   
            return isNaN(percent)?0:percent;   
        }   
        /*  
         @ 下面是视频播放相关控制的接口  
         @  
         @  
         @  
         */  
        //播放视频   
        public function play():void  
        {   
            if (video.url != null)   
            {   
                stream.play(video.url);   
            }   
        }   
        //暂停   
        public function pause():void  
        {   
            stream.pause();   
        }   
        //关闭   
        public function close():void  
        {   
            stream.close();   
        }          
        //停止播放   
        public function stop():void  
        {   
            stream.close();   
            stream.seek(0);            
        }   
        // 回放   
        public function togglePause():void  
        {   
            stream.togglePause();   
        }   
        //清除视频   
        public function clear():void  
        {   
            video.clear();   
        }   
        //重新播放   
        public function resume():void  
        {   
            stream.resume();   
        }   
        //设置视频是否平滑   
        public function set smoothing(flag:Boolean):void  
        {   
            video.smoothing=flag;   
        }   
        //设置视频高度和宽度   
        public function get videoHeight():int  
        {   
            return video.videoHeight;   
        }   
        public function set videoHeight(height:int):void  
        {   
            video.height=height;   
        }   
        public function get videoWidth():int  
        {   
            return video.videoWidth;   
        }   
        public function set videoWidth(width:int):void  
        {   
            video.width=width;   
        }   
        //全屏模式   
        public function fullScreen(stage:Stage):void  
        {   
            if (stage.displayState==StageDisplayState.NORMAL)   
            {   
  
                //var screenRectangle:Rectangle = new Rectangle(video.x, video.y, video.width, video.height);   
//              stage.fullScreenSourceRect = screenRectangle;   
                stage.displayState = StageDisplayState.FULL_SCREEN;   
  
            }   
            else if (stage.displayState ==StageDisplayState.FULL_SCREEN)   
            {   
                stage.displayState=StageDisplayState.NORMAL;   
            }   
        }   
    }   
}  


本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/hero82748274/archive/2009/06/29/4307461.aspx

 

 

下面是继承了video类：

package
{
    import flash.media.Video;
    import flash.events.*;
    public class FLVideo extends Video
    {
        public var url:String=null;
        public  function FLVideo()
        {
            
        }
    }
    
}

 

 

测试：

基本上如果实现外部加载的其实功能很简单，为了让这个类功能更加强大一些，还可以继续完善。