3 # Copyright 2006 Free Software Foundation, Inc.
5 # This file is part of GNU Radio
7 # GNU Radio is free software; you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation; either version 2, or (at your option)
12 # GNU Radio is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with GNU Radio; see the file COPYING. If not, write to
19 # the Free Software Foundation, Inc., 51 Franklin Street,
20 # Boston, MA 02110-1301, USA.
23 from gnuradio import gr, audio
24 from gnuradio.eng_option import eng_option
25 from optparse import OptionParser
27 class audio_sink(gr.hier_block2):
28 def __init__(self, src, port, pkt_size, sample_rate):
29 gr.hier_block2.__init__(self,
30 "audio_sink", # Block type
31 gr.io_signature(0,0,0), # Input signature
32 gr.io_signature(0,0,0)) # Output signature
35 self.define_component("src", gr.udp_source(gr.sizeof_float, src, port, pkt_size))
36 self.define_component("dst", audio.sink(sample_rate))
38 self.connect("src", 0, "dst", 0)
40 if __name__ == '__main__':
41 parser = OptionParser(option_class=eng_option)
42 parser.add_option("", "--src-name", type="string", default="localhost",
43 help="local host name (domain name or IP address)")
44 parser.add_option("", "--src-port", type="int", default=65500,
45 help="port value to listen to for connection")
46 parser.add_option("", "--packet-size", type="int", default=1472,
48 parser.add_option("-r", "--sample-rate", type="int", default=32000,
49 help="audio signal sample rate [default=%default]")
50 (options, args) = parser.parse_args()
55 # Create an instance of a hierarchical block
56 top_block = audio_sink(options.src_name, options.src_port,
57 options.packet_size, options.sample_rate)
59 # Create an instance of a runtime, passing it the top block
60 runtime = gr.runtime(top_block)
65 except KeyboardInterrupt: