1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
#!/usr/bin/env python
#
# Copyright 2006,2007,2010 Free Software Foundation, Inc.
#
# This file is part of GNU Radio
#
# SPDX-License-Identifier: GPL-3.0-or-later
#
#
from gnuradio import gr, audio
from gnuradio import blocks
from argparse import ArgumentParser
class dial_tone_sink(gr.top_block):
def __init__(self, host, port, pkt_size, sample_rate, eof):
gr.top_block.__init__(self, "dial_tone_sink")
udp = blocks.udp_source(gr.sizeof_float, host, port, pkt_size, eof=eof)
sink = audio.sink(sample_rate)
self.connect(udp, sink)
if __name__ == '__main__':
parser = ArgumentParser()
parser.add_argument("--host", default="0.0.0.0",
help="local host name (domain name or IP address)")
parser.add_argument("--port", type=int, default=65500,
help="port value to listen to for connection")
parser.add_argument("--packet-size", type=int, default=1472,
help="packet size.")
parser.add_argument("-r", "--sample-rate", type=int, default=8000,
help="audio signal sample rate [default=%(default)r]")
parser.add_argument("--no-eof", action="store_true", default=False,
help="don't send EOF on disconnect")
args = parser.parse_args()
# Create an instance of a hierarchical block
top_block = dial_tone_sink(args.host, args.port,
args.packet_size, args.sample_rate,
not args.no_eof)
try:
# Run forever
top_block.run()
except KeyboardInterrupt:
# Ctrl-C exits
pass
|
