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我是 flash 新手（这是我第一次使用它或 actionscript），我正在尝试制作视频播放器。视频播放器从嵌入代码中获取参数，并从服务器上的文件夹中提取视频。

我有以下代码（我已经删除了我 100% 确定不会导致我的问题的所有内容）：

import flash.net.NetConnection;
import flash.net.NetStream;
import flash.media.Video;
import flash.events.NetStatusEvent;
import flash.events.MouseEvent;
import flash.events.FullScreenEvent;
import flash.events.Event;
import flash.ui.Mouse;
import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.text.TextFormat;
import flash.media.SoundTransform;



var nc:NetConnection;
var ns:NetStream;
var ns2:NetStream;
var video:Video;
var video2:Video;
//get filename parameters from embed code
var filename:String = root.loaderInfo.parameters.filename;
var filename2:String = root.loaderInfo.parameters.filename2;
var t:Timer = new Timer(5000);
var duration;
var currentPosition:Number;
var st:Number;
var started:Boolean;

Object(this).mcPlay.buttonMode = true;
Object(this).mcPause.buttonMode = true;
Object(this).ScreenClick.buttonMode = true;
Object(this).mcMax.buttonMode = true;
Object(this).mcSwitcher.buttonMode = true;

Object(this).mcPause.addEventListener(MouseEvent.CLICK,PlayPause);
Object(this).mcPlay.addEventListener(MouseEvent.CLICK,PlayPause);
Object(this).ScreenClick.addEventListener(MouseEvent.CLICK,PlayPause);
Object(this).mcMax.addEventListener(MouseEvent.CLICK,Maximize);
Object(this).slideVolume.addEventListener(Event.CHANGE, ChangeVolume);
Object(this).mcSwitcher.addEventListener(MouseEvent.CLICK, ToggleSwitcher);

t.addEventListener(TimerEvent.TIMER, TimerComplete);
stage.addEventListener(MouseEvent.MOUSE_MOVE, resetTimer);
stage.addEventListener(MouseEvent.MOUSE_DOWN, resetTimer);
stage.addEventListener(MouseEvent.MOUSE_UP, resetTimer);
stage.addEventListener(Event.ENTER_FRAME, videoTimer);

if (!nc) start();
var IsPaused:String;

function start():void
{
    Object(this).slideVolume.maximum = 100;
    Object(this).slideVolume.value = 100;

    started = false;

    var tf:TextFormat = new TextFormat();
    tf.color = 0xFFFFFF;
    tf.bold = true;
    this.lblTime.setStyle("textFormat", tf);

    connect();
    t.start();
}

function connect():void
{
    nc = new NetConnection();
    nc.client = this;
    nc.addEventListener(NetStatusEvent.NET_STATUS, OnNetStatus);
    nc.connect(null);
}

function OnNetStatus(e:NetStatusEvent):void
{
    switch(e.info.code)
    {
        case "NetConnection.Connect.Success":
            if (!started)
            {
                started = true;
                stream();
            }
            else
            {
                finish();
            }
        break;
        default:
            finish();
        break;
    }
}

function stream():void
{
    ns = new NetStream(nc);
    ns.client = this;
    ns.bufferTime = 5;  // set the buffer time to 5 seconds

    if ((filename2 != null) && (filename2.length > 0))
    {
        ns2 = new NetStream(nc)
        //ns2.client = this;    //Uncomment to use ns2 vid for duration info
        ns2.bufferTime = 5;  // set the buffer time to 5 seconds
        startVideo(2);
        currentPosition = 1;    //Default

        ns.seek(0);
        ns2.seek(0);
    }
    else
    {
        this.mcSwitcher.visible = false;
        startVideo(1);

        ns.seek(0);
    }
}

function startVideo(num:Number):void
{
    var startVolume:SoundTransform = new SoundTransform();
    startVolume.volume = slideVolume.value / 100;

    if (num == 2)
    {
        video = new Video(320,180);
        video.x = 0;
        video.y = 90;
        addChild(video);
        video.attachNetStream(ns);
        ns.checkPolicyFile = false;
        ns.play(filename);  //path/filename
        setChildIndex(video,1);

        video2 = new Video(320,180);
        video2.x = 320;
        video2.y = 90;
        addChild(video2);
        video2.attachNetStream(ns2);
        ns2.checkPolicyFile = false;
        ns2.play(filename2);    //path/filename
        setChildIndex(video2,1);

        ns.soundTransform = startVolume;
        var videoVolumeTransform2:SoundTransform = new SoundTransform();
        videoVolumeTransform2.volume = 0;
        ns2.soundTransform = videoVolumeTransform2;
        ns2.receiveAudio(false);
    }
    else if (num == 1)
    {
        video = new Video(640,360);
        video.x = 0;
        video.y = 0;
        addChild(video);
        video.attachNetStream(ns);
        ns.checkPolicyFile = false;
        ns.play(filename);  //path/filename
        setChildIndex(video,1);

        ns.soundTransform = startVolume;
    }
    IsPaused = "playing";
    this.removeChild(mcPlay);
    setChildIndex(this.ScreenClick,0);
    setChildIndex(this.mcTitleOverlay,2);
}

function ShowControls ():void
{
    for (var i:int = 0; i < Object(root).numChildren; i++)
    {       
        switch (Object(root).getChildAt(i))
        {
            case mcPause:
                if (IsPaused != "paused")
                    Object(root).getChildAt(i).visible = true;
            break;
            case mcPlay:
                if (IsPaused != "playing")
                    Object(root).getChildAt(i).visible = true;
            break;
            case mcSwitcher:
                if ((filename2 != null) && (filename2.length > 0))
                    Object(root).getChildAt(i).visible = true;
            break;
            default:
                Object(root).getChildAt(i).visible = true;  //Bring back everything else
            break;
        }
        ScreenClick.y = 154;
    }
}

function videoTimer(e:Event):void
{
    var curTime = ns.time;  //Current time in seconds
    var curMinutes = Math.floor(curTime / 60);  //Get the minutes
    var curSeconds = Math.floor(curTime % 60);  //Get the leftover seconds

    var durMinutes = Math.floor(duration / 60);
    var durSeconds = Math.floor(duration % 60);

    //Add the zeroes to the begining of the seconds if it is needed.
    if (curSeconds < 10)
        curSeconds = "0" + curSeconds;

    if (durSeconds < 10)
        durSeconds = "0" + durSeconds;

    Object(this).lblTime.text = curMinutes + ":" + curSeconds + " / " + durMinutes + ":" + durSeconds;
}


function PlayPause (e:MouseEvent):void
{
    switch (IsPaused)
    {
        case "playing":
            IsPaused = "paused";
            this.mcPlay.visible = true;
            this.mcPause.visible = false;
            ns.togglePause();
            ns2.togglePause();
        break;
        case "paused":
            IsPaused = "playing";
            this.mcPause.visible = true;
            this.mcPlay.visible = false;
            ns.togglePause();
            ns2.togglePause();
        break;
        default:
            //
        break;
    }
}

我遇到的问题很小但令人沮丧（我今天大部分时间都在试图以零进展来解决它）。因此：一切正常，除了当视频加载和播放时，声音播放两次（对于启用了声音的视频）。我正在努力解决这个问题，任何帮助将不胜感激！

谢谢！

编辑：

好的，在进一步的研究中（非常简单地重写每个函数并查看问题是否随着功能而消失）我已经确定以下函数是万恶之源（或者至少是我的问题）：

function startVideo(num:Number):void
{
    var startVolume:SoundTransform = new SoundTransform();
    startVolume.volume = Object(this).slideVolume.sldVol.value / 100;

    if (num == 2)
    {
        video = new Video(320,180);
        video.x = 0;
        video.y = 90;
        addChild(video);
        video.attachNetStream(ns);
        ns.checkPolicyFile = false;
        ns.play(filename);  //path/filename
        this.removeChild(btnPlay);
        setChildIndex(video,1);

        video2 = new Video(320,180);
        video2.x = 320;
        video2.y = 90;
        addChild(video2);
        video2.attachNetStream(ns2);
        ns2.checkPolicyFile = false;
        ns2.play("test.mp4");   //path/filename
        setChildIndex(video2,1);

        ns.soundTransform = startVolume;
        var videoVolumeTransform2:SoundTransform = new SoundTransform();
        videoVolumeTransform2.volume = 0;
        ns2.soundTransform = videoVolumeTransform2;
        ns2.receiveAudio(false);
    }
    else if (num == 1)
    {
        video = new Video(640,360);
        video.x = 0;
        video.y = 0;
        addChild(video);
        video.attachNetStream(ns);
        ns.checkPolicyFile = false;
        ns.play("test.flv");    //path/filename
        setChildIndex(video,1);

        ns.soundTransform = startVolume;
    }
    IsPaused = "playing";
    this.removeChild(btnPlay);
    setChildIndex(this.ScreenClick,0);
    //setChildIndex(this.mcTitleOverlay,2);
}

我将坚持我的故障排除（我已经隔离了问题，希望下一步是一个解决方案！

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