# aptitude install libnginx-mod-rtmp
rtmp {
server {
listen 12345;
chunk_size 4096;
application live {
live on;
record off;
}
}
}
$ ffmpeg -f x11grab -video_size 1920x1080 -rtbufsize 100M -framerate 30 -probesize 10M -i :0 -c:v libx264 -r 30 -preset ultrafast -tune zerolatency -crf 25 -pix_fmt yuv420p -f flv rtmp://192.168.2.72:12345/live
ffplay -fflags nobuffer rtmp://192.168.2.72:12345/live