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top_block.py
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#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Top Block
# Generated: Wed Sep 3 14:09:11 2014
##################################################
from PyQt4 import Qt
from PyQt4.QtCore import QObject, pyqtSlot
from gnuradio import analog
from gnuradio import blocks
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio import qtgui
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from optparse import OptionParser
import PyQt4.Qwt5 as Qwt
import sip
import sys
class top_block(gr.top_block, Qt.QWidget):
def __init__(self):
gr.top_block.__init__(self, "Top Block")
Qt.QWidget.__init__(self)
self.setWindowTitle("Top Block")
try:
self.setWindowIcon(Qt.QIcon.fromTheme('gnuradio-grc'))
except:
pass
self.top_scroll_layout = Qt.QVBoxLayout()
self.setLayout(self.top_scroll_layout)
self.top_scroll = Qt.QScrollArea()
self.top_scroll.setFrameStyle(Qt.QFrame.NoFrame)
self.top_scroll_layout.addWidget(self.top_scroll)
self.top_scroll.setWidgetResizable(True)
self.top_widget = Qt.QWidget()
self.top_scroll.setWidget(self.top_widget)
self.top_layout = Qt.QVBoxLayout(self.top_widget)
self.top_grid_layout = Qt.QGridLayout()
self.top_layout.addLayout(self.top_grid_layout)
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.restoreGeometry(self.settings.value("geometry").toByteArray())
##################################################
# Variables
##################################################
self.samp_rate = samp_rate = 1e6
self.carrier_freq = carrier_freq = 25e3
##################################################
# Blocks
##################################################
self._carrier_freq_layout = Qt.QVBoxLayout()
self._carrier_freq_tool_bar = Qt.QToolBar(self)
self._carrier_freq_layout.addWidget(self._carrier_freq_tool_bar)
self._carrier_freq_tool_bar.addWidget(Qt.QLabel("Carrier Freq"+": "))
class qwt_counter_pyslot(Qwt.QwtCounter):
def __init__(self, parent=None):
Qwt.QwtCounter.__init__(self, parent)
@pyqtSlot('double')
def setValue(self, value):
super(Qwt.QwtCounter, self).setValue(value)
self._carrier_freq_counter = qwt_counter_pyslot()
self._carrier_freq_counter.setRange(0, samp_rate/2, 1)
self._carrier_freq_counter.setNumButtons(2)
self._carrier_freq_counter.setValue(self.carrier_freq)
self._carrier_freq_tool_bar.addWidget(self._carrier_freq_counter)
self._carrier_freq_counter.valueChanged.connect(self.set_carrier_freq)
self._carrier_freq_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
self._carrier_freq_slider.setRange(0, samp_rate/2, 1)
self._carrier_freq_slider.setValue(self.carrier_freq)
self._carrier_freq_slider.setMinimumWidth(200)
self._carrier_freq_slider.valueChanged.connect(self.set_carrier_freq)
self._carrier_freq_layout.addWidget(self._carrier_freq_slider)
self.top_layout.addLayout(self._carrier_freq_layout)
self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
interpolation=1000000,
decimation=44100,
taps=None,
fractional_bw=None,
)
self.qtgui_waterfall_sink_x_0 = qtgui.waterfall_sink_f(
1024, #size
firdes.WIN_BLACKMAN_hARRIS, #wintype
0, #fc
samp_rate, #bw
"", #name
1 #number of inputs
)
self.qtgui_waterfall_sink_x_0.set_update_time(1.0/20)
labels = ["", "", "", "", "",
"", "", "", "", ""]
colors = [0, 0, 0, 0, 0,
0, 0, 0, 0, 0]
alphas = [1.0, 1.0, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(1):
if len(labels[i]) == 0:
self.qtgui_waterfall_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_waterfall_sink_x_0.set_line_label(i, labels[i])
self.qtgui_waterfall_sink_x_0.set_color_map(i, colors[i])
self.qtgui_waterfall_sink_x_0.set_line_alpha(i, alphas[i])
self.qtgui_waterfall_sink_x_0.set_intensity_range(-160, -40)
self._qtgui_waterfall_sink_x_0_win = sip.wrapinstance(self.qtgui_waterfall_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_waterfall_sink_x_0_win)
self.qtgui_time_sink_x_0 = qtgui.time_sink_f(
40960, #size
samp_rate, #samp_rate
"", #name
2 #number of inputs
)
self.qtgui_time_sink_x_0.set_update_time(0.10)
self.qtgui_time_sink_x_0.set_y_axis(-2, 2)
self.qtgui_time_sink_x_0.enable_tags(-1, True)
self.qtgui_time_sink_x_0.set_trigger_mode(qtgui.TRIG_MODE_FREE, qtgui.TRIG_SLOPE_POS, 0.0, 0, 0, "")
self.qtgui_time_sink_x_0.enable_autoscale(False)
labels = ["", "", "", "", "",
"", "", "", "", ""]
widths = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
colors = ["red", "blue", "green", "black", "cyan",
"magenta", "yellow", "dark red", "dark green", "blue"]
styles = [1, 1, 1, 1, 1,
1, 1, 1, 1, 1]
markers = [-1, -1, -1, -1, -1,
-1, -1, -1, -1, -1]
alphas = [1.0, 0.25, 1.0, 1.0, 1.0,
1.0, 1.0, 1.0, 1.0, 1.0]
for i in xrange(2):
if len(labels[i]) == 0:
self.qtgui_time_sink_x_0.set_line_label(i, "Data {0}".format(i))
else:
self.qtgui_time_sink_x_0.set_line_label(i, labels[i])
self.qtgui_time_sink_x_0.set_line_width(i, widths[i])
self.qtgui_time_sink_x_0.set_line_color(i, colors[i])
self.qtgui_time_sink_x_0.set_line_style(i, styles[i])
self.qtgui_time_sink_x_0.set_line_marker(i, markers[i])
self.qtgui_time_sink_x_0.set_line_alpha(i, alphas[i])
self._qtgui_time_sink_x_0_win = sip.wrapinstance(self.qtgui_time_sink_x_0.pyqwidget(), Qt.QWidget)
self.top_layout.addWidget(self._qtgui_time_sink_x_0_win)
self.blocks_wavfile_source_0 = blocks.wavfile_source("/home/student/Desktop/SuzVega-TomsDinerRemix-44100Hz-mono.wav", True)
self.blocks_throttle_0 = blocks.throttle(gr.sizeof_float*1, 44100,True)
self.blocks_multiply_xx_0 = blocks.multiply_vff(1)
self.blocks_add_xx_0 = blocks.add_vff(1)
self.blocks_add_const_vxx_0 = blocks.add_const_vff((1, ))
self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_COS_WAVE, carrier_freq, 1, 0)
self.analog_fastnoise_source_x_0 = analog.fastnoise_source_f(analog.GR_GAUSSIAN, 0.0005, 0, 8192)
##################################################
# Connections
##################################################
self.connect((self.analog_sig_source_x_0, 0), (self.blocks_multiply_xx_0, 1))
self.connect((self.rational_resampler_xxx_0, 0), (self.blocks_multiply_xx_0, 0))
self.connect((self.blocks_throttle_0, 0), (self.blocks_add_const_vxx_0, 0))
self.connect((self.blocks_wavfile_source_0, 0), (self.blocks_throttle_0, 0))
self.connect((self.blocks_add_const_vxx_0, 0), (self.rational_resampler_xxx_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.blocks_add_xx_0, 0))
self.connect((self.analog_fastnoise_source_x_0, 0), (self.blocks_add_xx_0, 1))
self.connect((self.blocks_add_xx_0, 0), (self.qtgui_waterfall_sink_x_0, 0))
self.connect((self.rational_resampler_xxx_0, 0), (self.qtgui_time_sink_x_0, 0))
self.connect((self.blocks_multiply_xx_0, 0), (self.qtgui_time_sink_x_0, 1))
def closeEvent(self, event):
self.settings = Qt.QSettings("GNU Radio", "top_block")
self.settings.setValue("geometry", self.saveGeometry())
event.accept()
def get_samp_rate(self):
return self.samp_rate
def set_samp_rate(self, samp_rate):
self.samp_rate = samp_rate
self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)
self.qtgui_time_sink_x_0.set_samp_rate(self.samp_rate)
self.qtgui_waterfall_sink_x_0.set_frequency_range(0, self.samp_rate)
def get_carrier_freq(self):
return self.carrier_freq
def set_carrier_freq(self, carrier_freq):
self.carrier_freq = carrier_freq
Qt.QMetaObject.invokeMethod(self._carrier_freq_counter, "setValue", Qt.Q_ARG("double", self.carrier_freq))
Qt.QMetaObject.invokeMethod(self._carrier_freq_slider, "setValue", Qt.Q_ARG("double", self.carrier_freq))
self.analog_sig_source_x_0.set_frequency(self.carrier_freq)
if __name__ == '__main__':
import ctypes
import sys
if sys.platform.startswith('linux'):
try:
x11 = ctypes.cdll.LoadLibrary('libX11.so')
x11.XInitThreads()
except:
print "Warning: failed to XInitThreads()"
parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
(options, args) = parser.parse_args()
Qt.QApplication.setGraphicsSystem(gr.prefs().get_string('qtgui','style','raster'))
qapp = Qt.QApplication(sys.argv)
tb = top_block()
tb.start()
tb.show()
def quitting():
tb.stop()
tb.wait()
qapp.connect(qapp, Qt.SIGNAL("aboutToQuit()"), quitting)
qapp.exec_()
tb = None #to clean up Qt widgets