diff options
| author | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-04-12 18:36:16 +0000 |
|---|---|---|
| committer | jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5> | 2008-04-12 18:36:16 +0000 |
| commit | 92c6303550042adc00a33801cb9f5650009f3877 (patch) | |
| tree | d96f349969666731a1994f9a49a75ecd5272139d /gnuradio-examples/python | |
| parent | 296f981f79344d042f09ca2b30dcd7aa56f32981 (diff) | |
Adds gru.daemonize() and example application. Simplifies running GNU Radio applications as background daemon processes instead of foreground applications.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@8191 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gnuradio-examples/python')
| -rw-r--r-- | gnuradio-examples/python/audio/Makefile.am | 1 | ||||
| -rwxr-xr-x | gnuradio-examples/python/audio/dial_tone_daemon.py | 57 |
2 files changed, 58 insertions, 0 deletions
diff --git a/gnuradio-examples/python/audio/Makefile.am b/gnuradio-examples/python/audio/Makefile.am index eeb25d706b..dc200219ec 100644 --- a/gnuradio-examples/python/audio/Makefile.am +++ b/gnuradio-examples/python/audio/Makefile.am @@ -27,6 +27,7 @@ EXTRA_DIST = \ audio_play.py \ audio_to_file.py \ dial_tone.py \ + dial_tone_daemon.py \ dial_tone_wav.py \ mono_tone.py \ multi_tone.py \ diff --git a/gnuradio-examples/python/audio/dial_tone_daemon.py b/gnuradio-examples/python/audio/dial_tone_daemon.py new file mode 100755 index 0000000000..d30d0e1174 --- /dev/null +++ b/gnuradio-examples/python/audio/dial_tone_daemon.py @@ -0,0 +1,57 @@ +#!/usr/bin/env python +# +# Copyright 2004,2005,2007,2008 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, gru +from gnuradio import audio +from gnuradio.eng_option import eng_option +from optparse import OptionParser +import os + +class my_top_block(gr.top_block): + + def __init__(self): + gr.top_block.__init__(self) + + parser = OptionParser(option_class=eng_option) + parser.add_option("-O", "--audio-output", type="string", default="", + help="pcm output device name. E.g., hw:0,0 or /dev/dsp") + parser.add_option("-r", "--sample-rate", type="eng_float", default=48000, + help="set sample rate to RATE (48000)") + (options, args) = parser.parse_args () + if len(args) != 0: + parser.print_help() + raise SystemExit, 1 + + sample_rate = int(options.sample_rate) + ampl = 0.1 + + src0 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 350, ampl) + src1 = gr.sig_source_f (sample_rate, gr.GR_SIN_WAVE, 440, ampl) + dst = audio.sink (sample_rate, options.audio_output) + self.connect (src0, (dst, 0)) + self.connect (src1, (dst, 1)) + + +if __name__ == '__main__': + pid = gru.daemonize() + print "To stop this program, enter 'kill %d'" % pid + my_top_block().run() |