diff options
author | Petter Reinholdtsen <pere@hungry.com> | 2017-08-08 07:52:23 +0000 |
---|---|---|
committer | Petter Reinholdtsen <pere@hungry.com> | 2017-08-08 07:55:31 +0000 |
commit | a0889539e43cc7fa670c06f1b20df40fdc71b15a (patch) | |
tree | 5f429007ebc0afea4404a5b26b1b0a7ec1499d50 /apps/helpers/grgsm_channelize.py | |
parent | 6c4304da43346150d00b2bdc5a520746c2f45906 (diff) |
Remove language extention from remaining binaries.
The install target install some binaries without language extentions and
others with such extension:
* grgsm_capture.py
* grgsm_channelize.py
* grgsm_decode
* grgsm_livemon
* grgsm_scanner
It would be more consistent and according to the policy of Debian and
Ubuntu if all the binaries were without such language extention. This
commit rename grgsm_capture.py and grgsm_channelize.py to avoid the
language extention.
Diffstat (limited to 'apps/helpers/grgsm_channelize.py')
-rwxr-xr-x | apps/helpers/grgsm_channelize.py | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/apps/helpers/grgsm_channelize.py b/apps/helpers/grgsm_channelize.py deleted file mode 100755 index 146bb8f..0000000 --- a/apps/helpers/grgsm_channelize.py +++ /dev/null @@ -1,168 +0,0 @@ -#!/usr/bin/env python2 -# -*- coding: utf-8 -*- -# @file -# @author Pieter Robyns <pieter.robyns@uhasselt.be> -# @section LICENSE -# -# Gr-gsm 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. -# -# Gr-gsm 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 gr-gsm; see the file COPYING. If not, write to -# the Free Software Foundation, Inc., 51 Franklin Street, -# Boston, MA 02110-1301, USA. -# -# - -################################################## -# gr-gsm channelizer -# -# Standalone application to channelize a wideband -# GSM capture file into multiple seperate capture -# files for the specified ARFCNs. -################################################## - -from gnuradio import blocks -from gnuradio import eng_notation -from gnuradio import filter -from gnuradio import gr -from gnuradio.eng_option import eng_option -from gnuradio.filter import firdes -from argparse import ArgumentParser, ArgumentTypeError, RawDescriptionHelpFormatter -import grgsm.arfcn as arfcn -from gnuradio.filter import pfb -import math -import os - -EXTRA_HELP = """ -Example usage: -grgsm_channelize.py -c my_wideband_capture.cfile -f 925.2e6 990 991 992 993 994 995 1019 1020 1021 1022 1023 - -The above example will channelize my_wideband_capture.cfile, in this case a cfile captured at -925.2 MHz centered (ARFCN 975) and 2 Msps. As a result, 12 files will be generated for -ARFCNs 975 - 1023 at 1 Msps each. -""" - -def eng_float(value): - try: - return eng_notation.str_to_num(value) - except: - raise ArgumentTypeError("invalid engineering notation value: {0}".format(value)) - -def gsm_band(value): - choices = arfcn.get_bands() - if value in choices: - return value - else: - raise ArgumentTypeError("invalid GSM band: {0}. Possible choices are: {1}".format(value, choices)) - -class grgsm_channelize(gr.top_block): - def __init__(self, channels, resamp_rate, fc, band, samp_rate, input_file, dest_dir, data_type="complex"): - gr.top_block.__init__(self, "grgsm_channelize") - - ################################################## - # Parameters - ################################################## - self.channels = channels - self.resamp_rate = resamp_rate - self.fc = fc - self.band = band - self.samp_rate = samp_rate - self.blocks_resamplers = {} - self.blocks_rotators = {} - self.blocks_file_sinks = {} - - ################################################## - # Blocks and connections - ################################################## - self.source = None - if data_type == "ishort": - self.blocks_file_source = blocks.file_source(gr.sizeof_short, input_file, False) - self.source = blocks.interleaved_short_to_complex(False, False) - self.connect((self.blocks_file_source, 0), (self.source, 0)) - elif data_type == "complex": - self.source = blocks.file_source(gr.sizeof_gr_complex, input_file, False) - - fc_str = eng_notation.num_to_str(fc) - print("Extracting channels %s, given that the center frequency is at %s" % (str(channels), eng_notation.num_to_str(fc))) - - for channel in channels: - channel_freq = arfcn.arfcn2downlink(channel, band) - if channel_freq is None: - print("Warning: invalid ARFCN %d for band %s" % (channel, band)) - continue - freq_diff = channel_freq - fc - freq_diff_str = "+" if 0 <= freq_diff else "" - freq_diff_str += eng_notation.num_to_str(freq_diff) - print("ARFCN %d is at %sHz %sHz" % (channel, fc_str, freq_diff_str)) - - self.blocks_resamplers[channel] = pfb.arb_resampler_ccf( resamp_rate, taps=None, flt_size=32) - self.blocks_rotators[channel] = blocks.rotator_cc(-2*math.pi*(freq_diff)/samp_rate) - self.connect( (self.source, 0), (self.blocks_rotators[channel], 0) ) - self.connect( (self.blocks_rotators[channel], 0), (self.blocks_resamplers[channel], 0) ) - - self.blocks_file_sinks[channel] = blocks.file_sink(gr.sizeof_gr_complex, dest_dir+"/out_" + str(channel) + ".cfile", False) - self.blocks_file_sinks[channel].set_unbuffered(False) - self.connect((self.blocks_resamplers[channel], 0), (self.blocks_file_sinks[channel], 0)) - - -if __name__ == '__main__': - parser = ArgumentParser(formatter_class=RawDescriptionHelpFormatter, description='Split wideband a GSM capture into seperate files per ARFCN.', add_help=True, epilog=EXTRA_HELP) - parser.add_argument(dest="channel", type=int, nargs='+', - help="List of ARFCNs") - parser.add_argument("-s", "--samp-rate", dest="samp_rate", type=eng_float, default=eng_notation.num_to_str(2e6), - help="Sample rate of the wideband capture file [default=%(default)s]") - parser.add_argument("-f", "--fc", dest="fc", type=eng_float, default=eng_notation.num_to_str(935e6), required=True, - help="Carrier frequency in Hz [default=%(default)s]") - parser.add_argument("-b", "--band", dest="band", type=gsm_band, default='E-GSM', - help="GSM band [default=%(default)s]") #TODO: add automatic discovery based on fc - parser.add_argument("-o", "--out-samp-rate", dest="out_samp_rate", type=eng_float, default=eng_notation.num_to_str(1e6), - help="Sample rate of the output capture files [default=%(default)s]") - parser.add_argument("-i", "--input_file", dest="input_file", type=str, required=True, - help="Path to wideband GSM capture file") - parser.add_argument("-t", "--data_type", dest="data_type", type=str, choices=["complex","ishort"], default="complex", - help="Type of the input file [default=%(default)s]") - parser.add_argument("-d", "--dest_dir", dest="dest_dir", type=str, - help="Destination directory - if not given defaults to input file name without extension") - - args = parser.parse_args() - - if not os.path.exists(args.input_file): - raise IOError(args.input_file + " does not exist") - - input_filename, _ = os.path.splitext(os.path.basename(args.input_file)) - - if args.dest_dir is None: - args.dest_dir = input_filename - - if not os.path.exists("./"+args.dest_dir): - os.makedirs("./"+args.dest_dir) - - - if args.samp_rate % args.out_samp_rate != 0: - raise Exception("Input sample rate should be multiple of output sample rate in order to get integer decimation.") - - resamp_rate = args.out_samp_rate / args.samp_rate - print("Input sample rate: " + eng_notation.num_to_str(args.samp_rate)) - print("Output sample rate: " + eng_notation.num_to_str(args.out_samp_rate)) - print("==> using resample rate of " + str(resamp_rate)) - - tb = grgsm_channelize(channels=args.channel, - resamp_rate=resamp_rate, - fc=args.fc, - band=args.band, - samp_rate=args.samp_rate, - input_file=args.input_file, - dest_dir=args.dest_dir, - data_type=args.data_type - ) - tb.start() - tb.wait() - print("Done!") |