/usr/bin/gr_spectrogram_plot is in gnuradio 3.7.11-10.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 | #!/usr/bin/python
#
# Copyright 2012,2013,2018 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 import filter
import pmt
from gnuradio.blocks import parse_file_metadata
import scipy
import sys
import os
try:
import gnuradio.qtgui.plot_spectrogram_base as plot_base
except ImportError:
import plot_spectrogram_base as plot_base
try:
from gnuradio import qtgui
from PyQt5 import QtWidgets, Qt
import sip
except ImportError:
sys.stderr.write("Error: Program requires PyQt5 and gr-qtgui.\n")
sys.exit(1)
class spectrogram_plot_c(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_c
self.dsize = gr.sizeof_gr_complex
self.src_type = blocks.vector_source_c
self.gui_snk = qtgui.waterfall_sink_c(self._psd_size,
filter.firdes.WIN_BLACKMAN_hARRIS,self._center_freq,
self._samp_rate,"Complex Float",
self._nsigs)
self.setup()
class spectrogram_plot_f(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_f
self.dsize = gr.sizeof_float
self.src_type = blocks.vector_source_f
self.gui_snk = qtgui.waterfall_sink_f(self._psd_size,
filter.firdes.WIN_BLACKMAN_hARRIS,self._center_freq,
self._samp_rate,
"Float",
self._nsigs)
self.setup()
class spectrogram_plot_b(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_b
self.dsize = gr.sizeof_float
self.src_type = plot_base.source_chars_to_float
self.gui_snk = qtgui.waterfall_sink_f(self._psd_size,
filter.firdes.WIN_BLACKMAN_hARRIS,self._center_freq,
self._samp_rate, "Bytes",
self._nsigs)
self.setup()
class spectrogram_plot_i(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_i
self.dsize = gr.sizeof_float
self.src_type = plot_base.source_ints_to_float
self.gui_snk = qtgui.waterfall_sink_f(self._psd_size,
filter.firdes.WIN_BLACKMAN_hARRIS,
self._center_freq, self._samp_rate,
"Integers",
self._nsigs)
self.setup()
class spectrogram_plot_s(plot_base.plot_base):
def __init__(self, filelist, fc, samp_rate, psdsize, start,
nsamples, max_nsamples, avg=1.0):
plot_base.plot_base.__init__(self, filelist, fc, samp_rate,
psdsize, start, nsamples,
max_nsamples, avg)
self.read_samples = plot_base.read_samples_s
self.dsize = gr.sizeof_float
self.src_type = plot_base.source_shorts_to_float
self.gui_snk = qtgui.waterfall_sink_f(self._psd_size,
filter.firdes.WIN_BLACKMAN_hARRIS,
self._center_freq, self._samp_rate,
"Shorts",
self._nsigs)
self.setup()
def read_header(filelist):
filename = filelist[0] + '.hdr'
try:
handle = open(filename,"rb")
except IOError:
return
hdr_start = handle.tell()
header_str = handle.read(parse_file_metadata.HEADER_LENGTH)
if( len(header_str) == 0 ):
return
# String to PMT Conversion
try:
header = pmt.deserialize_str(header_str)
except RuntimeError:
sys.stderr.write("Can't deserialize header: invalid/corrupt data\n")
sys.exit(1)
info = parse_file_metadata.parse_header(header,False)
return info
def main():
description = 'Plots the spectrogram (waterfall) of a file with detached header.'
description += ' Assumes header is <input_filename>.hdr'
(options, args) = plot_base.setup_options(description)
filelist = list(args)
# Attempt to read the header information
info = read_header(filelist)
# If no header, quit
if not info:
sys.stderr.write('Header not found\n')
sys.exit(1)
max_nsamples = plot_base.find_max_nsamples(filelist)
srate = info["rx_rate"]
# Dispatch the proper function
# Complex Types
if(info["cplx"] == True):
if( info["type"] == "float" ):
tb = spectrogram_plot_c(filelist,
options.center_frequency,srate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
else:
sys.stderr.write("Complex File Type " + info["type"]+ " not supported.\n")
# Real Types
else:
if( info["type"] == "bytes" ):
tb = spectrogram_plot_b(filelist,
options.center_frequency,srate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
elif( info["type"] == "int" ):
tb = spectrogram_plot_i(filelist,
options.center_frequency,srate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
elif( info["type"] == "float" ):
tb = spectrogram_plot_f(filelist,
options.center_frequency,srate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
elif( info["type"] == "short" ):
tb = spectrogram_plot_s(filelist,
options.center_frequency,srate,
options.psd_size,
options.start, options.nsamples, max_nsamples,
options.average);
else:
sys.stderr.write("Real File Type " + info["type"] + " not supported\n")
main_box = plot_base.plot_spectrogram_form(tb, 'GNU Radio Spectrogram Plot')
main_box.show()
tb.run()
tb.qapp.exec_()
if __name__ == "__main__":
try:
main()
except KeyboardInterrupt:
pass
|