You should be able to get this done with OBS. Set OBS up so your streaming a window of this application. Go into OBS settings and go to "Stream" and set it to

You should be able to get this done with OBS. Set OBS up so your streaming a window of this application. Go into OBS settings and go to "Stream" and set it to custom. For server use "srt://127.0.0.1:7777?mode=listener&timeout=50000&transtype=live" Then in VLC, open a network stream for srt://127.0.0.1:7777.