Scripts from the hotel music article

listen_2046.py

import socket
import struct
import sys

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(('', 2046))

mreq = struct.pack("4sl", socket.inet_aton("234.0.0.2"), socket.INADDR_ANY)
s.setsockopt(socket.IPPROTO_IP, socket.IP_ADD_MEMBERSHIP, mreq)

while True:
    data = s.recv(2048)
    sys.stdout.buffer.write(data[8:])

send_2046.py

#!/usr/bin/env python3
import socket
import struct
import time
import sys

s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
s.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, 2)

file_name = sys.argv[1]

with open(file_name, "rb") as mp3file:
    while True:
        time.sleep(0.01)
        d = mp3file.read(626)
        if len(d) == 0:
            break
        data = b"\x02\xffA\x00\x88\xdfT\x02" + d
        s.sendto(data, ("234.0.0.2", 2046))