Quick code for play local video on TV via dlna (inspired by stream2tv.js)

local_to_tv.js

var fs = require("fs"),
    http = require("http"),
    url = require("url"),
    Browser = require('nodecast-js'),
    MediaRendererClient = require('upnp-mediarenderer-client'),
    local_address = require('network-address');

var settings = { 
    localIP: local_address(),
    localPort: 12345
};

var filename_o = process.argv[2];
var filename  = encodeURIComponent(filename_o);

var url_video = 'http://' + settings.localIP + ':' + settings.localPort +'/0';
var url_subtitle = 'http://' + settings.localIP + ':' + settings.localPort + '/' + filename.replace(/\.[^/.]+$/, ".srt");

var streamserver = http.createServer();
streamserver.on('request', function (req, res) {
    if (req.url.indexOf(".srt") != -1) {
        res.writeHead(200, { "Content-Type": "text/html" });
        var fileS = filename_o.replace(/\.[^/.]+$/, ".srt");
        fs.readFile(fileS, "binary", function(err, fileS) {
            if(err) {
                res.writeHead(500, {"Content-Type": "text/plain"});
                res.write(err + "\n");
                res.end();
                return;
            }
            res.writeHead(200);
            res.write(fileS, "binary");
            res.end();
        });
    }

    if (req.url.indexOf(".srt") == -1 && req.url.indexOf(".ico") == -1) {
        var path = filename_o;
        try {
        var stat = fs.statSync(filename_o);
        } catch(e) {
            console.log("ERROR");
            if (e.errno == -2) {
                console.log(e.path+": NOT FOUND");
            }
            process.exit(e.errno);
        }
        var total = stat.size;
        if (req.headers['range']) {
            var range = req.headers.range;
            var parts = range.replace(/bytes=/, "").split("-");
            var partialstart = parts[0];
            var partialend = parts[1];
            var start = parseInt(partialstart, 10);
            var end = partialend ? parseInt(partialend, 10) : total-1;
            var chunksize = (end-start)+1;
            var file = fs.createReadStream(path, {start: start, end: end});
            res.writeHead(206, {
                'Content-Range': 'bytes ' + start + '-' + end + '/' + total,
                'Accept-Ranges': 'bytes',
                'Content-Length': chunksize,
                'Content-Type': 'video/mp4',
                "transferMode.dlna.org": "Streaming",
                "contentFeatures.dlna.org": "DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000",
                "CaptionInfo.sec": url_subtitle
            });
            file.pipe(res);
        } else {
            res.writeHead(200, {
                'Content-Length': 1,
                'Content-Type': 'video/mp4',
                "transferMode.dlna.org": "Streaming",
                "contentFeatures.dlna.org": "DLNA.ORG_OP=01;DLNA.ORG_CI=0;DLNA.ORG_FLAGS=017000 00000000000000000000000000",
                "CaptionInfo.sec": url_subtitle
            });
            fs.createReadStream(path, {start: 0, end: 1}).pipe(res);
        }
    }
});

streamserver.on('connection', function (socket) {
    socket.setTimeout(36000000)
})

streamserver.listen(settings.localPort);


setTimeout(function () {
    var timestamp = 60; // in seconds

    var browser = new Browser();
    browser.onDevice(function (device) {
        device.onError(function (err) {
            console.log(err);
        });

        // console.log(browser.getList()); // list of currently discovered devices

        device.play(url_video, timestamp);
    });

    browser.start();

    setTimeout(function () {
        browser.destroy(); // destroy your browser
    }, 20000);

}, 5000);