Skip to content

Instantly share code, notes, and snippets.

@jiangtao
Forked from mharsch/gist:5188206
Created January 28, 2016 12:49
Show Gist options
  • Save jiangtao/ca26f34dc18214313585 to your computer and use it in GitHub Desktop.
Save jiangtao/ca26f34dc18214313585 to your computer and use it in GitHub Desktop.
serve HLS (HTTP Live Streaming) content from node.js

HLS streaming from node

Provided that you already have a file or stream segmenter generating your .m3u8 playlist and .ts segment files (such as the ffmpeg 'hls' muxer), this little node server will serve up those files to an HLS compatible client (e.g. Safari). If you're using node for your streaming app already, this obviates the need to serve the HLS stream from a separate web server.

loosely based on https://gist.github.com/bnerd/2011232

// loosely based on https://gist.github.com/bnerd/2011232
// requires node.js >= v0.10.0
// assumes that HLS segmenter filename base is 'out'
// and that the HLS playlist and .ts files are in the current directory
// point Safari browser to http://<hostname>:PORT/player.html

var http = require('http');
var fs = require('fs');
var url = require('url');
var path = require('path');
var zlib = require('zlib');

PORT = 8000;

http.createServer(function (req, res) {
	var uri = url.parse(req.url).pathname;

	if (uri == '/player.html') {
		res.writeHead(200, { 'Content-Type': 'text/html' });
		res.write('<html><head><title>HLS Player fed by node.js' +
		    '</title></head><body>');
		res.write('<video src="http://' + req.socket.localAddress +
		    ':' + PORT + '/out.M3U8" controls autoplay></body></html>');
		res.end();
		return;
	}

	var filename = path.join("./", uri);
	fs.exists(filename, function (exists) {
		if (!exists) {
			console.log('file not found: ' + filename);
			res.writeHead(404, { 'Content-Type': 'text/plain' });
			res.write('file not found: %s\n', filename);
			res.end();
		} else {
			console.log('sending file: ' + filename);
			switch (path.extname(uri)) {
			case '.M3U8':
				fs.readFile(filename, function (err, contents) {
					if (err) {
						res.writeHead(500);
						res.end();
					} else if (contents) {
						res.writeHead(200,
						    {'Content-Type':
						    'application/vnd.apple.mpegurl'});
						var ae = req.headers['accept-encoding'];
						if (ae.match(/\bgzip\b/)) {
							zlib.gzip(contents, function (err, zip) {
								if (err) throw err;

								res.writeHead(200,
								    {'content-encoding': 'gzip'});
								res.end(zip);
							});
						} else {
							res.end(contents, 'utf-8');
						}
					} else {
						console.log('emptly playlist');
						res.writeHead(500);
						res.end();
					}
				});
				break;
			case '.ts':
				res.writeHead(200, { 'Content-Type':
				    'video/MP2T' });
				var stream = fs.createReadStream(filename,
				    { bufferSize: 64 * 1024 });
				stream.pipe(res);
				break;
			default:
				console.log('unknown file type: ' +
				    path.extname(uri));
				res.writeHead(500);
				res.end();
			}
		}
	});
}).listen(PORT);
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment