Flash AS3声音视频编程

入门极好视频： http://www.enet.com.cn/eschool/video/flashas3/

《Flash CS3 AS3声音视频高级编程》共分为两章：第一章深入讲解了FLASH对于声音的编程，最后通过一个功能强大的MP3播放器进行演示，通过这一章的学习可以让你对于声音的处理有一个深入的掌握；第二章深入讲解了对于视频的处理，包括如何使用现有视频组件来控制视频。同时还讲了如何创建自己的控制外观。

声音示例：

[AS3.0编程教学]最全的声音控制方法
 http://jingyan.baidu.com/article/a948d651bc90a60a2ccd2e4c.html

视频示例： http://www.cuplayer.com/player/PlayerCodeCourse/2012/0914409.html

[Flex]NetStream动态加载视频利用SoundTransform控制音量

<?xml version="1.0" encoding="utf-8"?> 

<!-- http://blog.flexexamples.com.sixxs.org/2008/03/01/displaying-a-video-in-flex-using-the-netconnection-netstream-and-video-classes/ --> 

<mx:Application xmlns:mx="http://www.adobe.com.sixxs.org/2006/mxml" 

                layout="vertical" 

                verticalAlign="middle" 

                backgroundColor="white" 

                viewSourceURL="srcview/index.html" xmlns:local="*" 

                initialize="init();"> 

 

    <mx:Script> 

        <![CDATA[
 

            import mx.controls.Alert;
 

            private var urlArr:Array=["http://221.122.36.143.sixxs.org/oa/video/1.flv", "http://221.122.36.143/oa/video/2.flv", "http://221.122.36.143/oa/video/p2.mp4"];
 

            public function init():void{
 

                myVideo.urlArr = urlArr;
 

                myVideo.total = 100000;
 

//              Alert.show("1==>>"+myVideo.urlArr.length);
 

            }
 

            
 

        ]]> 

    </mx:Script> 

 

    <local:mVideo id="myVideo"/> 

 

</mx:Application> 

 

第二个文件  

<?xml version="1.0" encoding="utf-8"?> 

<mx:Panel xmlns:mx="http://www.adobe.com.sixxs.org/2006/mxml" 

          creationComplete="setTransformVolume();"> 

    <mx:Script> 

        <![CDATA[
 

            import mx.controls.Alert;
 

            import mx.events.SliderEvent;
 

 

            private var nc:NetConnection;
 

            private var ns:NetStream;
 

            private var nc2:NetConnection;
 

            private var ns2:NetStream;
 

            private var video:Video;
 

 

            [Bindable]
 

            public var urlArr:Array=null;
 

            [Bindable]
 

            public var total:Number=0;
 

 

            private var count:int=0;
 

            private var finished1:int=1; //1：播放正在进行；0：播放结束
 

            private var finished2:int=0; //1：播放正在进行；0：播放结束
 

 

            private var volumeTransform:SoundTransform;
 

 

            
 

            private function setTransformVolume():void{
 

                volumeTransform=new SoundTransform();
 

                slider.value = volumeTransform.volume;
 

                slider.tickInterval = slider.snapInterval;
 

                slider.liveDragging = true;
 

                slider.addEventListener(Event.CHANGE, volumeChangeHandler);
 

                init();
 

            }
 

            
 

            private function init():void
 

            {
 

                Alert.show("" + total);
 

                
 

                var nsClient:Object={};
 

                nc=new NetConnection();
 

                nc.connect(null);
 

                ns=new NetStream(nc);
 

                ns.play(urlArr[count]);
 

                ns.client=nsClient;
 

                ns.soundTransform=volumeTransform;
 

                ns.addEventListener(NetStatusEvent.NET_STATUS, myTest1);
 

                
 

                video=new Video();
 

                video.name="video1";
 

                video.width=uic.width;
 

                video.height=uic.height;
 

                video.attachNetStream(ns);
 

                if (uic.getChildByName("video1") != null)
 

                {
 

                    uic.removeChild(uic.getChildByName("video1"));
 

                }
 

 

                count++;
 

            }
 

            private function volumeChangeHandler(event:SliderEvent):void {
 

                volumeTransform.volume = slider.value;
 

                ns.soundTransform = volumeTransform;
 

                ns2.soundTransform = volumeTransform;
 

            }
 

            private function init2():void
 

            {
 

 

                var nsClient:Object={};
 

 

                nc2=new NetConnection();
 

                nc2.connect(null);
 

                ns2=new NetStream(nc2);
 

                ns2.play(urlArr[count]);
 

                ns2.client=nsClient;
 

                ns2.soundTransform=volumeTransform;
 

                ns2.addEventListener(NetStatusEvent.NET_STATUS, myTest2);
 

                
 

                video=new Video();
 

                video.name="video2";
 

                video.width=uic.width;
 

                video.height=uic.height;
 

                video.attachNetStream(ns2);
 

                if (uic.getChildByName("video2") != null)
 

                {
 

                    uic.removeChild(uic.getChildByName("video2"));
 

                }
 

                count++;
 

            }
 

 

            private function myTest1(event:NetStatusEvent):void
 

            {
 

                trace("count1==>>" + count);
 

                trace("count1 onStatus:" + event.info.code);
 

                if (event.info.code == "NetStream.Buffer.Full")
 

                {
 

                    if (count == 1)
 

                    {
 

                        uic.addChild(video);
 

                        init2();
 

                    }
 

                    if (finished2 == 1)
 

                    {
 

                        ns.seek(0);
 

                        ns.pause();
 

                    }
 

                }
 

                else if (event.info.code == "NetStream.Play.Stop")
 

                {
 

                    finished1=0;
 

                    finished2=1;
 

                    uic.addChild(video);
 

                    ns2.togglePause();
 

                    if (count <= urlArr.length)
 

                    {
 

                        init();
 

                    }
 

 

                }
 

 

            }
 

 

            private function myTest2(event:NetStatusEvent):void
 

            {
 

                trace("count2==>>" + count);
 

                trace("count2 onStatus:" + event.info.code);
 

                if (event.info.code == "NetStream.Buffer.Full")
 

                {
 

                    if (finished1 == 1)
 

                    {
 

                        ns2.seek(0);
 

                        ns2.pause();
 

                    }
 

                }
 

                else if (event.info.code == "NetStream.Play.Stop")
 

                {
 

                    finished2=0;
 

                    finished1=1;
 

                    uic.addChild(video);
 

                    ns.togglePause();
 

                    if (count <= urlArr.length)
 

                    {
 

                        init2();
 

                    }
 

                }
 

 

            }
 

 

            public function stopVideo():void
 

            {
 

                uic.stop();
 

            }
 

        ]]> 

    </mx:Script> 

    <mx:VideoDisplay id="uic" 

                     width="550" 

                     height="450" 

                     volume="{slider.value}"/> 

 

    <mx:ControlBar> 

        <mx:HSlider id="slider" 

                    minimum="0.0" 

                    maximum="1.0" 

                    snapInterval="0.1" 

                    tickInterval="0.1" 

                    liveDragging="true"/> 

        <mx:Button label="Play/Pause" 

                   click="uic.play();"/> 

        <mx:Button label="Rewind" 

                   click="stopVideo();"/> 

    </mx:ControlBar> 

</mx:Panel>