apps/fft: implement file recording capability

Available wildcards:
	%S: sample rate
	%F: center frequency
	%T: timestamp (%Y%m%d%H%M%S)

Example: osmocom_fft -r /tmp/name-f%F-s%S-t%T.cfile
wip-signat
Dimitri Stolnikov 9 years ago
parent d29896d854
commit 567fcbdffa
  1. 109
      apps/osmocom_fft

@ -31,6 +31,7 @@ GAIN_RANGE_KEY = lambda x: 'gain_range:'+x
BWIDTH_RANGE_KEY = 'bwidth_range'
import osmosdr
from gnuradio import blocks
from gnuradio import gr, gru
from gnuradio import eng_notation
from gnuradio.gr.pubsub import pubsub
@ -39,6 +40,8 @@ from optparse import OptionParser
import sys
import numpy
import time
import datetime
try:
from gnuradio.wxgui import stdgui2, form, slider
@ -70,6 +73,10 @@ class app_top_block(stdgui2.std_top_block, pubsub):
help="Set frequency correction (ppm)")
parser.add_option("-g", "--gain", type="eng_float", default=None,
help="Set gain in dB (default is midpoint)")
parser.add_option("-G", "--gains", type="string", default=None,
help="Set named gain in dB, name:gain,name:gain,...")
parser.add_option("-r", "--record", type="string", default=None,
help="Record to file, available wildcards: %S: sample rate, %F: center frequency, %T: timestamp, Example: /tmp/name-f%F-s%S-t%T.cfile")
parser.add_option("", "--dc-offset-mode", type="int", default=None,
help="Set the RX frontend DC offset correction mode")
parser.add_option("", "--iq-balance-mode", type="int", default=None,
@ -129,6 +136,25 @@ class app_top_block(stdgui2.std_top_block, pubsub):
else:
options.gain = gain
self.src.set_gain(options.gain)
if self._verbose:
gain_names = self.src.get_gain_names()
for name in gain_names:
range = self.src.get_gain_range(name)
print "%s gain range: start %d stop %d step %d" % (name, range.start(), range.stop(), range.step())
if options.gains:
for tuple in options.gains.split(","):
name, gain = tuple.split(":")
gain = int(gain)
print "Setting gain %s to %d." % (name, gain)
self.src.set_gain(gain, name)
if self._verbose:
rates = self.src.get_sample_rates()
print 'Supported sample rates %d-%d step %d.' % (rates.start(), rates.stop(), rates.step())
if options.center_freq is None:
freq = self.src.get_center_freq()
if freq != 0:
@ -141,8 +167,6 @@ class app_top_block(stdgui2.std_top_block, pubsub):
input_rate = self.src.set_sample_rate(options.samp_rate)
self.src.set_bandwidth(input_rate)
self.src.set_gain(options.gain)
self.publish(SAMP_RANGE_KEY, self.src.get_sample_rates)
self.publish(FREQ_RANGE_KEY, self.src.get_freq_range)
@ -156,11 +180,12 @@ class app_top_block(stdgui2.std_top_block, pubsub):
self.publish(BWIDTH_KEY, self.src.get_bandwidth)
#initialize values from options
# initialize values from options
self[SAMP_RANGE_KEY] = self.src.get_sample_rates()
self[SAMP_RATE_KEY] = options.samp_rate
self[CENTER_FREQ_KEY] = options.center_freq
self[FREQ_CORR_KEY] = options.freq_corr
self['record'] = self.record = options.record
self.dc_offset_mode = options.dc_offset_mode
self.iq_balance_mode = options.iq_balance_mode
@ -227,6 +252,14 @@ class app_top_block(stdgui2.std_top_block, pubsub):
self._build_gui(vbox)
if self.record != None:
self.recording = self.record_to_filename()
print "Recording samples to ", self.recording
self.file_sink = blocks.file_sink(gr.sizeof_gr_complex, self.recording, False)
self.file_sink.set_unbuffered(False)
self.connect(self.src, self.file_sink)
if self.dc_offset_mode != None:
self.set_dc_offset_mode(self.dc_offset_mode)
@ -427,12 +460,12 @@ class app_top_block(stdgui2.std_top_block, pubsub):
sr_vbox.Add(sr_hbox, 0, wx.EXPAND)
sr_vbox.AddSpacer(5)
# Add frequency controls to top window sizer
# Add sample rate controls to top window sizer
vbox.Add(sr_vbox, 0, wx.EXPAND)
vbox.AddSpacer(5)
sr_hbox.AddSpacer(3)
forms.text_box(
self.sample_rate_text = forms.text_box(
parent=self.panel, sizer=sr_hbox,
label='Sample Rate (Hz)',
proportion=1,
@ -453,6 +486,72 @@ class app_top_block(stdgui2.std_top_block, pubsub):
#)
#sr_hbox.AddSpacer(3)
##################################################
# File recording controls
##################################################
if self.record != None:
rec_vbox = forms.static_box_sizer(parent=self.panel,
label="File recording",
orient=wx.VERTICAL,
bold=True)
rec_vbox.AddSpacer(3)
# First row of sample rate controls
rec_hbox = wx.BoxSizer(wx.HORIZONTAL)
rec_vbox.Add(rec_hbox, 0, wx.EXPAND)
rec_vbox.AddSpacer(5)
# Add sample rate controls to top window sizer
vbox.Add(rec_vbox, 0, wx.EXPAND)
vbox.AddSpacer(5)
rec_hbox.AddSpacer(3)
self.record_text = forms.text_box(
parent=self.panel, sizer=rec_hbox,
label='File Name',
proportion=1,
ps=self,
key='record',
converter=forms.str_converter(),
)
rec_hbox.AddSpacer(5)
def record_callback(value):
if value:
self.sample_rate_text.Disable()
self.record_text.Disable()
self.recording = self.record_to_filename()
print "Recording samples to ", self.recording
self.file_sink.open(self.recording);
else:
self.sample_rate_text.Enable()
self.record_text.Enable()
self.file_sink.close()
print "Finished recording to", self.recording
forms.toggle_button(
sizer=rec_hbox,
parent=self.panel,
false_label='REC',
true_label='STOP',
value=True,
callback=record_callback,
)
def record_to_filename(self):
s = self['record']
s = s.replace('%S', '%e' % self.src.get_sample_rate())
s = s.replace('%F', '%e' % self.src.get_center_freq())
s = s.replace('%T', datetime.datetime.now().strftime('%Y%m%d%H%M%S'))
return s
##################################################
# DC Offset controls
##################################################

Loading…
Cancel
Save