从PHP将音频流式传输到Flash

Question

Hi i was wondering if someone could give me a hand with this... I've managed to gather some information on how to call php from flash to stream the mp3 however im not exactly sure how i go about streaming the data from flash. Below is the code i currently have.

Flash

function onPlay(e:MouseEvent):void
{
    //Load file to play
    var req:URLRequest = new URLRequest("streamAudio.php");
    var urlData:URLVariables = new URLVariables();
    urlData.id = id;
    req.data = urlData;

    myMusic.load(req); //myMusic is a Sound object
    myChannel = myMusic.play(); //myChannel is a SoundChannel object

    btn_Play.visible = false;
    btn_Pause.visible = true;
}

PHP

<?php
$ID = $_GET["id"];

if ($ID != 0)
{
    //Code to fetch URL from DB

    $url = $row["url"];
    $file = "/" . $url;

    if(file_exists($file))
    {
        header("Content-type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
        header("Content-Length: " . filesize($file));
        header("Expires: -1");
        header("Cache-Control: no-store, no-cache, must-revalidate");
        header("Cache-Control: post-check=0, pre-check=0", false);

        readfile($file);
    }

    //Close DB
}

All help is appreciated. Thanks in advance!!

EDIT

Modified the code. The PHP script works if tested directly now.

Answer 1

I don't know why you're doing what you're doing... you should be able to play the audio very simply:

s = new Sound();
s.loadSound("http://someserver/yourscript.php", true);

This of course assumes your PHP script is working in the first place. Note that in many cases, you cannot get the file size of a remote resource prior to downloading it. Test your PHP script first by hitting it directly.