as3 mp3播放器無法加載一些mp3文件

Question

就像它在標題中所說的，我試圖爲我的網站製作MP3播放器，並且我遇到了一些麻煩。我的代碼看起來是這樣的（這是在測試和開發階段，所以，儘量不要關注有關發展階段的東西）...

import flash.events.MouseEvent; 
import flash.media.Sound; 
import flash.net.URLRequest; 
import flash.media.SoundChannel; 

// First run 
if (songPlaying == undefined) { 
    var songPlaying = '0'; 
    var songPause = '0'; 
    var songLoadingCompleted = '1'; 
    var prevSongURL:Array; 
    var currentSongURL:Array; 
    var nextSongURL:Array; 
    var soundFile:URLRequest; 
    var currentSong:Sound; 
    var channel:SoundChannel; 
    currentSongURL = ['','','']; 
    trace("Player defaults loaded."); 
} 

// Testing vars 
nextSongURL = ['1','NEXT','http://www.balkanize.me/dll/dl5/Sasa_Kovacevic_Slucajno.mp3']; 
prevSongURL = ['3','PREV','http://tm-alonso.perso.sfr.fr/Musique/NRJ%20Music%20Awards%202012/CD1/06%20-%20Pitbull%20feat.%20Chris%20Brown%20-%20International%20Love.mp3']; 
//soundFile = new URLRequest(lastPlayedSongURL[2]); 
//currentSong = new Sound(); 
//channel = new SoundChannel(); 
trace("Testing values loaded."); 

//JS communication 
//Get next next file 
function getNextSong(lastPlayed:Array) { 
    //NOT FINISHED 
    trace("Loading next track"); 
    return nextSongURL; 
} 

//Get previous next file 
function getPrevSong(lastPlayed:Array){ 
    //NOT FINISHED 
    trace("Loading prev track"); 
    return prevSongURL; 
} 

//FUNCTIONS 
function songLoadingProgress(evt:ProgressEvent):void{ 
    var loadedPct:uint = Math.round(100 * (evt.bytesLoaded/evt.bytesTotal)); 
    trace("The sound is " + loadedPct + "% loaded."); 
} 

function songLoadingComplete(evt:Event):void{ 
    trace("The sound is completely loaded."); 
    songLoadingCompleted = '1'; 
} 

function onIOError(evt:IOErrorEvent){ 
    trace("The sound could not be loaded: " + evt.text); 
} 



// Player controls 
function playSong(evt:MouseEvent):void { 
    if (songPlaying !== '1') { 
     info.text = "PLAY!"; 
     if (currentSongURL[2] == '') { 
      currentSongURL = getNextSong(currentSongURL); 
     } 
     trace("Trying to play:" + currentSongURL[0] + " - " + currentSongURL[1] + " - " + currentSongURL[2]); 
     if (songLoadingCompleted !== '1') { 
      currentSong.close(); 
      currentSong = new Sound(); 
     } 
     songLoadingCompleted = '0'; 
     soundFile = new URLRequest(currentSongURL[2]); 
     currentSong = new Sound(); 
     channel = new SoundChannel(); 
     currentSong.load(soundFile); 
     channel = currentSong.play(songPause); 
     currentSong.addEventListener(ProgressEvent.PROGRESS, songLoadingProgress); 
     currentSong.addEventListener(Event.COMPLETE, songLoadingComplete); 
     currentSong.addEventListener(IOErrorEvent.IO_ERROR, onIOError); 
     //channel.addEventListener(Event.SOUND_COMPLETE, onPlaybackComplete); 
     songPlaying = '1'; 
     songPause = '0'; 
    } 
} 

function stopSong(evt:MouseEvent):void { 
    if (songPlaying !== '0') { 
     trace('STOP!'); 
     songPause = '0'; 
     songPlaying = '0'; 
     channel.stop(); 
     return; 
    } 
} 

function playNext(evt:MouseEvent):void { 
    if (songPlaying !== '0') { 
     trace('STOP!'); 
     songPlaying = '0'; 
     channel.stop(); 
    } 
    currentSongURL = getNextSong(currentSongURL); 
    playSong(null); 
} 

function playPrev(evt:MouseEvent):void { 
    if (songPlaying !== '0') { 
     trace('STOP!'); 
     songPlaying = '0'; 
     channel.stop(); 
    } 
    currentSongURL = getPrevSong(currentSongURL); 
    playSong(null); 
} 



btnPrev.addEventListener(MouseEvent.CLICK,playPrev); 
btnPlay.addEventListener(MouseEvent.CLICK,playSong); 
// btnPause.addEventListener(MouseEvent.CLICK,pauseSong); 
btnStop.addEventListener(MouseEvent.CLICK,stopSong); 
btnNext.addEventListener(MouseEvent.CLICK,playNext); 

問題是，我的網頁瀏覽器，以及一些其他的閃存MP3玩家可以打開「http://www.balkanize.me/dll/dl5/Sasa_Kovacevic_Slucajno.mp3」，我的玩家不能。然而，其他文件，'http://tm-alonso.perso.sfr.fr/Musique/NRJ%20Music%20Awards%202012/CD1/06%20-%20Pitbull%20feat.%20Chris%20Brown%20-%20International%20Love.mp3'，可以打開，播放，重播，無論如何。

我注意到我無法打開的文件有一些不同的標題（它沒有內容長度標題）。但是，我再次嘗試了一些沒有內容長度標題的文件，並且可以打開它。

我不知道我知道我錯在哪裏......：D幫助，並提前致謝！ :)

蘇珊

Answer 1

這聽起來像這肯定與你的MP3編碼，而不是與你的AS3代碼有問題。 .mp3只是一個用於保存文件的包裝 - 有許多不計其數的方法來編碼.mp3文件中的內容。

其中一些編碼可能在Flash中很友善，有些可能不是。您應該使用iTunes，Audacity，VLC媒體播放器，HandBrake或其他重新導出（或「擠壓」）所有非工作的.mp3文件。我建議Adobe Media Encoder。