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# Copyright 2006,2007 Free Software Foundation, Inc.
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# This file is part of GNU Radio
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# GNU Radio is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# GNU Radio is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with GNU Radio; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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from gnuradio import gr, audio
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from gnuradio.eng_option import eng_option
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from optparse import OptionParser
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class dial_tone_sink(gr.top_block):
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def __init__(self, src, port, pkt_size, sample_rate):
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gr.top_block.__init__(self, "dial_tone_sink")
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udp = gr.udp_source(gr.sizeof_float, src, port, pkt_size)
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sink = audio.sink(sample_rate)
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self.connect(udp, sink)
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if __name__ == '__main__':
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parser = OptionParser(option_class=eng_option)
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parser.add_option("", "--src-name", type="string", default="localhost",
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help="local host name (domain name or IP address)")
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parser.add_option("", "--src-port", type="int", default=65500,
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help="port value to listen to for connection")
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parser.add_option("", "--packet-size", type="int", default=1472,
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parser.add_option("-r", "--sample-rate", type="int", default=8000,
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help="audio signal sample rate [default=%default]")
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(options, args) = parser.parse_args()
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# Create an instance of a hierarchical block
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top_block = dial_tone_sink(options.src_name, options.src_port,
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options.packet_size, options.sample_rate)
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except KeyboardInterrupt: