nginx.conf

user root root;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
error_log  logs/error.log  info;

#pid        logs/nginx.pid;

events {
    worker_connections  1024;
}

rtmp {
	server {
		listen 1935;
		chunk_size 4096;

		application livein {
			live on;
			record off;
			meta copy;

			exec_push /usr/bin/ffmpeg -i rtmp://192.168.1.9/livein -vb 3500k -minrate 3500k -maxrate 3500k -bufsize 3500k -c:v libx264 -preset veryfast -r 30 -g 60 -keyint_min 60 -sws_flags lanczos -profile:v high -c:a copy rtmp://live-iad.twitch.tv/app/STREAM_KEY;

		}
	}
}