app.js

require('http').createServer(
    (req, res) => require('child_process').spawn('/usr/local/bin/ffmpeg', [
        '-i',
        'rtsp://192.168.2.11:7447/fXbuD6HqIV9y8BKL',
        '-vcodec',
        'copy',
        '-f',
        'mpegts',
        'pipe:1',
    ]).stdout.pipe(res)
).listen(8000);