读取mp3流并在php中回显客户端 [英] read mp3 stream and echo back to client in php

问题描述

我打算实现的是一个页面，当客户端连接时，该页面将不断地从本地冰播服务器(http://127.0.0.1:8000/stream.mp3)中读取，并将流从那里回显到客户端. ，客户端可以使用基本的音频标签对其进行播放.

What I intend to achieve, is a page that when a client is to connect, the page is to constantly read from a local ice-cast server (http://127.0.0.1:8000/stream.mp3), and echo the stream back to the client, from there, the client can be play it back in a basic audio tag.

<?php
header("Content-Transfer-Encoding: binary"); 
header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
header('Content-Disposition: attachment; filename="stream.mp3"');
header('X-Pad: avoid browser bug');
header('Cache-Control: no-cache');
print file_get_contents("http://127.0.0.1:443/stream.mp3");

使用此代码，它只会吃掉ram并不会对客户端返回任何有用的信息，我在想一些事情，等待直到兆字节缓冲区已满，然后将其回显给客户端.但是idk，是的.

With this code it only eats up ram and returns nothing useful to the client, I'm thinking something along the lines of waiting until a megabyte buffer is full, then echoing it to the client. But idk, so yeah.

请注意，我对php并不了解.谢谢！

Please note that I'm not that experienced with php. Thanks!

推荐答案

file_get_contents尝试直到最后读取流，并且由于您尝试从广播服务器读取数据，所以将没有结束.

file_get_contents attempts to read a stream up to the end, and since you're trying to read from a broadcast server there will be no end.

如果可以选择HTML5，则可以进行以下操作.

If HTML5 is an option, the following may work.

<audio autoplay>
  <source src="http://127.0.0.1:443/stream.mp3" type="audio/mpeg">      
</audio>

替代解决方案:

<?php
ob_start();
header("Content-Transfer-Encoding: binary"); 
header("Content-Type: audio/mpeg, audio/x-mpeg, audio/x-mpeg-3, audio/mpeg3");
header('Content-Disposition: attachment; filename="stream.mp3"');
header('X-Pad: avoid browser bug');
header('Cache-Control: no-cache');
$handle = fopen("http://127.0.0.1:443/stream.mp3");

while (($data = fread($handle, $bufferSize)) { //Buffer size needs to be large enough to not break audio up while getting the next part
      echo $data;
      ob_flush();
      flush();
      set_time_limit(30); // Reset the script execution time to prevent timeouts since this page will probably never terminate. 
}

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