setup service listener on viewer machine :
while : ; do ffplay -i tcp://192.168.xx.xx:1234?listen ; done
send video to it :
ffmpeg -re -i /dev/video1 -vcodec mpeg2video -f alsa -i hw:2,0 -ac 2 -s 1920×1080 -r 25 -strict -2 -f mpegts tcp://192.168.xx.xx:1234
where
192.168.xx.xx is the IP of the viewer where the ffplay is running.
1234 is the port used.
nJoy 😉