overviewer.org RTMP configuration

nginx.conf

# RTMP server
rtmp {
        server {
                listen 1935;
                ping 30s;

                application stream {
                        live on;
                        hls on;
                        hls_path /var/www/org/overviewer/htdocs/stream/hls;

                        on_publish http://127.0.0.1/stream/authenticate;
                        exec_publish /var/www/org/overviewer/on-stream-publish.py $name $args;
                }
        }
}

# within http / server
http {
	server {
		# RTMP streaming
                location ^~ /stream/statistics {
                        rtmp_stat all;
                        rtmp_stat_stylesheet stat.xsl;
                }
                location /stream/hls {
                        root /var/www/org/overviewer/htdocs;
                        types {
                                application/vnd.apple.mpegurl m3u8;
                                video/mp2t ts;
                        }
                        add_header Cache-Control no-cache;
                }
                location ^~ /stream/authenticate {
                        # do auth here
                        # return 401 if not authorized

                        # otherwise, continue on!
                        return 200;
                }
	}
}

on-stream-publish.py

#!/usr/bin/env python

# responsible for forwarding published streams with a 'twitch'
# argument to twitch.tv

from urllib.parse import parse_qs, quote
import subprocess
import sys

_, name, args = sys.argv
args = parse_qs(args)

if not 'twitch' in args:
    exit(0)

src = "rtmp://127.0.0.1/stream/{}".format(quote(name))
dest = "rtmp://live.twitch.tv/app/{}".format(quote(args['twitch'][-1]))

cmd = ["ffmpeg", "-re", "-i", src, "-vcodec", "copy", "-acodec", "copy", "-f", "flv", dest]

subprocess.call(cmd)