Add mutlicastjoin.py

docker-compose.yml

@@ -55,6 +55,13 @@ services:
     volumes:
     - ./api:/app
 
+  # FIXME this should be done in de-ip-hdmi...
+  multicast:
+    build: .
+    restart: unless-stopped
+    command: /tools/multicastjoin.py
+    network_mode: host
+
   lenkeng1:
     build: .
     restart: unless-stopped

tools/multicastjoin.py

@@ -0,0 +1,24 @@
+#!/usr/bin/python
+
+import socket, sys
+from struct import *
+import struct
+import time
+import sys
+import logging
+
+logging.basicConfig(level=logging.INFO)
+
+sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
+sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+
+sock.bind(('', 2068))
+
+try:
+    mreq = struct.pack("=4sl", socket.inet_aton("226.2.2.2"), socket.INADDR_ANY)
+    sock.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)
+except:
+    logging.exception(':(')
+    sys.stderr.write('******* Subscribe failed')
+
+time.sleep(30)