1 files changed, 82 insertions, 0 deletions
diff --git a/gnuradio-runtime/examples/network/dial_tone_source.py b/gnuradio-runtime/examples/network/dial_tone_source.py
new file mode 100755
index 0000000000..44f05dc83c
--- /dev/null
+++ b/gnuradio-runtime/examples/network/dial_tone_source.py
@@ -0,0 +1,82 @@
+#!/usr/bin/env python
+#
+# Copyright 2006,2007,2010 Free Software Foundation, Inc.
+#
+# This file is part of GNU Radio
+#
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GNU Radio is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+from gnuradio import gr
+from gnuradio import blocks
+from gnuradio.eng_option import eng_option
+from optparse import OptionParser
+import sys
+
+try:
+    from gnuradio import analog
+except ImportError:
+    sys.stderr.write("This example requires gr-analog.\n")
+
+try:
+    from gnuradio import blocks
+except ImportError:
+    sys.stderr.write("This example requires gr-blocks.\n")
+
+class dial_tone_source(gr.top_block):
+    def __init__(self, host, port, pkt_size, sample_rate, eof):
+        gr.top_block.__init__(self, "dial_tone_source")
+
+        amplitude = 0.3
+        src0 = analog.sig_source_f(sample_rate, analog.GR_SIN_WAVE, 350, amplitude)
+        src1 = analog.sig_source_f(sample_rate, analog.GR_SIN_WAVE, 440, amplitude)
+        add = blocks.add_ff()
+
+        # Throttle needed here to account for the other side's audio card sampling rate
+	thr = blocks.throttle(gr.sizeof_float, sample_rate)
+	sink = blocks.udp_sink(gr.sizeof_float, host, port, pkt_size, eof=eof)
+	self.connect(src0, (add, 0))
+	self.connect(src1, (add, 1))
+	self.connect(add, thr, sink)
+
+if __name__ == '__main__':
+    parser = OptionParser(option_class=eng_option)
+    parser.add_option("", "--host", type="string", default="localhost",
+                      help="Remote host name (domain name or IP address")
+    parser.add_option("", "--port", type="int", default=65500,
+                      help="port number to connect to")
+    parser.add_option("", "--packet-size", type="int", default=1472,
+                      help="packet size.")
+    parser.add_option("-r", "--sample-rate", type="int", default=8000,
+                      help="audio signal sample rate [default=%default]")
+    parser.add_option("", "--no-eof", action="store_true", default=False,
+                      help="don't send EOF on disconnect")
+    (options, args) = parser.parse_args()
+    if len(args) != 0:
+        parser.print_help()
+        raise SystemExit, 1
+
+    # Create an instance of a hierarchical block
+    top_block = dial_tone_source(options.host, options.port,
+                                 options.packet_size, options.sample_rate,
+                                 not options.no_eof)
+
+    try:
+        # Run forever
+        top_block.run()
+    except KeyboardInterrupt:
+        # Ctrl-C exits
+        pass