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Diffstat (limited to 'gnuradio-examples/python/digital/tx_voice.py')
| -rwxr-xr-x | gnuradio-examples/python/digital/tx_voice.py | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/gnuradio-examples/python/digital/tx_voice.py b/gnuradio-examples/python/digital/tx_voice.py deleted file mode 100755 index d8692beb4..000000000 --- a/gnuradio-examples/python/digital/tx_voice.py +++ /dev/null @@ -1,147 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2005,2006,2007,2009 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, modulation_utils -from gnuradio import usrp -from gnuradio import audio -from gnuradio import eng_notation -from gnuradio.eng_option import eng_option -from optparse import OptionParser - -from gnuradio.vocoder import gsm_full_rate - -import random -import time -import struct -import sys - -# from current dir -import usrp_transmit_path - -#import os -#print os.getpid() -#raw_input('Attach and press enter') - - -class audio_rx(gr.hier_block2): - def __init__(self, audio_input_dev): - gr.hier_block2.__init__(self, "audio_rx", - gr.io_signature(0, 0, 0), # Input signature - gr.io_signature(0, 0, 0)) # Output signature - sample_rate = 8000 - src = audio.source(sample_rate, audio_input_dev) - src_scale = gr.multiply_const_ff(32767) - f2s = gr.float_to_short() - voice_coder = gsm_full_rate.encode_sp() - self.packets_from_encoder = gr.msg_queue() - packet_sink = gr.message_sink(33, self.packets_from_encoder, False) - self.connect(src, src_scale, f2s, voice_coder, packet_sink) - - def get_encoded_voice_packet(self): - return self.packets_from_encoder.delete_head() - - -class my_top_block(gr.top_block): - - def __init__(self, modulator_class, options): - gr.top_block.__init__(self) - self.txpath = usrp_transmit_path.usrp_transmit_path(modulator_class, options) - self.audio_rx = audio_rx(options.audio_input) - self.connect(self.txpath) - self.connect(self.audio_rx) - - -# ///////////////////////////////////////////////////////////////////////////// -# main -# ///////////////////////////////////////////////////////////////////////////// - -def main(): - - def send_pkt(payload='', eof=False): - return tb.txpath.send_pkt(payload, eof) - - def rx_callback(ok, payload): - print "ok = %r, payload = '%s'" % (ok, payload) - - mods = modulation_utils.type_1_mods() - - parser = OptionParser(option_class=eng_option, conflict_handler="resolve") - expert_grp = parser.add_option_group("Expert") - - parser.add_option("-m", "--modulation", type="choice", choices=mods.keys(), - default='gmsk', - help="Select modulation from: %s [default=%%default]" - % (', '.join(mods.keys()),)) - parser.add_option("-M", "--megabytes", type="eng_float", default=0, - help="set megabytes to transmit [default=inf]") - parser.add_option("-I", "--audio-input", type="string", default="", - help="pcm input device name. E.g., hw:0,0 or /dev/dsp") - usrp_transmit_path.add_options(parser, expert_grp) - - for mod in mods.values(): - mod.add_options(expert_grp) - - parser.set_defaults(bitrate=50e3) # override default bitrate default - (options, args) = parser.parse_args () - - if len(args) != 0: - parser.print_help() - sys.exit(1) - - if options.tx_freq is None: - sys.stderr.write("You must specify -f FREQ or --freq FREQ\n") - parser.print_help(sys.stderr) - sys.exit(1) - - - # build the graph - tb = my_top_block(mods[options.modulation], options) - - r = gr.enable_realtime_scheduling() - if r != gr.RT_OK: - print "Warning: failed to enable realtime scheduling" - - - tb.start() # start flow graph - - # generate and send packets - nbytes = int(1e6 * options.megabytes) - n = 0 - pktno = 0 - - while nbytes == 0 or n < nbytes: - packet = tb.audio_rx.get_encoded_voice_packet() - s = packet.to_string() - send_pkt(s) - n += len(s) - sys.stderr.write('.') - pktno += 1 - - send_pkt(eof=True) - tb.wait() # wait for it to finish - - -if __name__ == '__main__': - try: - main() - except KeyboardInterrupt: - pass |