icecast-stack

node-icecast-stack

A StreamStack implementation for parsing and/or injecting metadata with SHOUTcast/Icecast radio streams.

This module offers an interface for retrieving the raw audio data and parsing the metadata from a SHOUTcast or Icecast broadcast. Two API's are offered: a low-level StreamStack read and write interface (which requires you to establish the connection to the net.Stream yourself), and a more convenient high-level ReadStream interface (which creates a net.Stream connection, and uses the StreamStack interfaces transparently).

Usage

Here's a basic example of just piping the clean audio data to stdout, while printing the HTTP response headers and metadata events to stderr:

var icecast = require('icecast-stack');

var url = 'http://67.205.85.183:5500'; // URL to a known Icecast stream
var stream = icecast.createReadStream(url);

// Fired when the `net.Stream` has it's 'connect' event.
stream.on('connect', function() {
  console.error("Radio Stream connected!");
});
    
// Fired after the HTTP response headers have been received.
stream.on('response', function(res) {
  console.error("Radio Stream response!");
  console.error(res.headers);
});

// When a 'metadata' event happens, usually a new song is starting.
stream.on('metadata', function(metadata) {
  var title = icecast.parseMetadata(metadata).StreamTitle;
  console.error(title);
});

// Proxy the raw audio stream to 'stdout', redirect to a file!
stream.pipe(process.stdout);

Look in the examples directory for code of some more complex use-cases.

The most important use case of this is for HTML5 web apps that listen to radio streams; the <audio> tag doesn't know how to deal with the extra metadata and it is impossible to extract (on the client-side). But a WebSocket connection could be used in conjunction with this module to provide those metadata events to a web browser, for instance.

Installation

Installation through npm is the most straight-forward way to install the node-icecast-stack module:

$ npm install icecast-stack

Or just checking out this git repo works as well:

$ git clone git://github.com/TooTallNate/node-icecast-stack.git