na to staci linux, pod windowsem si nainstaluj wsl2 do nej ubuntu
kamera 1
ffmpeg -i http://10.0.0.41/axis-cgi/mjpg/video.cgi?resolution=640×480 back.mp4
ffmpeg -i http://10.0.0.40/axis-cgi/mjpg/video.cgi?resolution=640×480 back.mp4
rozliseni lze menit na dalsi si prijdi sam