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Diffstat (limited to 'gr-uhd/examples/python/usrp_tv_rcv.py')
| -rwxr-xr-x | gr-uhd/examples/python/usrp_tv_rcv.py | 443 |
1 files changed, 0 insertions, 443 deletions
diff --git a/gr-uhd/examples/python/usrp_tv_rcv.py b/gr-uhd/examples/python/usrp_tv_rcv.py deleted file mode 100755 index b49a5ea71..000000000 --- a/gr-uhd/examples/python/usrp_tv_rcv.py +++ /dev/null @@ -1,443 +0,0 @@ -#!/usr/bin/env python -# -# Copyright 2005-2007,2011 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. -# - -""" -Realtime capture and display of analog Tv stations. - -Can also use a file as source or sink - -When you use an output file you can show the results frame-by-frame -using ImageMagick - -When you want to use the realtime sdl display window you must first -install gr-video-sdl. - -When you use a file source, instead of the usrp, make sure you -capture interleaved shorts. (Use usrp_rx_file.py, or use -usrp_rx_cfile.py --output-shorts if you have a recent enough -usrp_rx_cfile.py) - -There is no synchronisation yet. The sync blocks are in development -but not yet in cvs. -""" - -from gnuradio import gr -try: - from gnuradio import video_sdl -except: - print "FYI: gr-video-sdl is not installed" - print "realtime SDL video output window will not be available" -from gnuradio import uhd -from gnuradio.eng_option import eng_option -from gnuradio.wxgui import slider, powermate -from gnuradio.wxgui import stdgui2, fftsink2, form -from optparse import OptionParser -import sys -import wx - - -class tv_rx_block (stdgui2.std_top_block): - def __init__(self,frame,panel,vbox,argv): - stdgui2.std_top_block.__init__ (self,frame,panel,vbox,argv) - - usage="%prog: [options] [input_filename]. \n If you don't specify an input filename the usrp will be used as source\n " \ - "Make sure your input capture file containes interleaved shorts not complex floats" - parser=OptionParser(option_class=eng_option, usage=usage) - parser.add_option("-a", "--args", type="string", default="", - help="UHD device address args [default=%default]") - parser.add_option("", "--spec", type="string", default=None, - help="Subdevice of UHD device where appropriate") - parser.add_option("-A", "--antenna", type="string", default=None, - help="select Rx Antenna where appropriate") - parser.add_option("-s", "--samp-rate", type="eng_float", default=1e6, - help="set sample rate") - parser.add_option("-f", "--freq", type="eng_float", default=519.25e6, - help="set frequency to FREQ", metavar="FREQ") - parser.add_option("-g", "--gain", type="eng_float", default=None, - help="set gain in dB (default is midpoint)") - parser.add_option("-c", "--contrast", type="eng_float", default=1.0, - help="set contrast (default is 1.0)") - parser.add_option("-b", "--brightness", type="eng_float", default=0.0, - help="set brightness (default is 0)") - parser.add_option("-p", "--pal", action="store_true", default=False, - help="PAL video format (this is the default)") - parser.add_option("-n", "--ntsc", action="store_true", default=False, - help="NTSC video format") - parser.add_option("-o", "--out-filename", type="string", default="sdl", - help="For example out_raw_uchar.gray. If you don't specify an output filename you will get a video_sink_sdl realtime output window. You then need to have gr-video-sdl installed)") - parser.add_option("-r", "--repeat", action="store_false", default=True, - help="repeat file in a loop") - parser.add_option("", "--freq-min", type="eng_float", default=50.25e6, - help="Set a minimum frequency [default=%default]") - parser.add_option("", "--freq-max", type="eng_float", default=900.25e6, - help="Set a maximum frequency [default=%default]") - - (options, args) = parser.parse_args() - if not ((len(args) == 1) or (len(args) == 0)): - parser.print_help() - sys.exit(1) - - if len(args) == 1: - filename = args[0] - else: - filename = None - - self.frame = frame - self.panel = panel - - self.contrast = options.contrast - self.brightness = options.brightness - self.state = "FREQ" - self.freq = 0 - - self.tv_freq_min = options.freq_min - self.tv_freq_max = options.freq_max - - # build graph - self.u=None - - if not (options.out_filename=="sdl"): - options.repeat=False - - usrp_rate = options.samp_rate - - if not ((filename is None) or (filename=="usrp")): - # file is data source - self.filesource = gr.file_source(gr.sizeof_short,filename,options.repeat) - self.istoc = gr.interleaved_short_to_complex() - self.connect(self.filesource,self.istoc) - self.src=self.istoc - - options.gain=0.0 - self.gain=0.0 - - else: # use a UHD device - self.u = uhd.usrp_source(device_addr=options.args, stream_args=uhd.stream_args('fc32')) - - # Set the subdevice spec - if(options.spec): - self.u.set_subdev_spec(options.spec, 0) - - # Set the antenna - if(options.antenna): - self.u.set_antenna(options.antenna, 0) - - self.u.set_samp_rate(usrp_rate) - dev_rate = self.u.get_samp_rate() - - if options.gain is None: - # if no gain was specified, use the mid-point in dB - g = self.u.get_gain_range() - options.gain = float(g.start()+g.stop())/2.0 - - self.src=self.u - - self.gain = options.gain - - f2uc=gr.float_to_uchar() - - # sdl window as final sink - if not (options.pal or options.ntsc): - options.pal=True #set default to PAL - - if options.pal: - lines_per_frame=625.0 - frames_per_sec=25.0 - show_width=768 - - elif options.ntsc: - lines_per_frame=525.0 - frames_per_sec=29.97002997 - show_width=640 - - width=int(usrp_rate/(lines_per_frame*frames_per_sec)) - height=int(lines_per_frame) - - if (options.out_filename=="sdl"): - #Here comes the tv screen, you have to build and install - #gr-video-sdl for this (subproject of gnuradio, only in cvs - #for now) - try: - video_sink = video_sdl.sink_uc ( frames_per_sec, width, height, 0, - show_width, height) - except: - print "gr-video-sdl is not installed" - print "realtime \"sdl\" video output window is not available" - raise SystemExit, 1 - self.dst=video_sink - else: - print "You can use the imagemagick display tool to show the resulting imagesequence" - print "use the following line to show the demodulated TV-signal:" - print "display -depth 8 -size " +str(width)+ "x" + str(height) \ - + " gray:" + options.out_filename - print "(Use the spacebar to advance to next frames)" - options.repeat=False - file_sink=gr.file_sink(gr.sizeof_char, options.out_filename) - self.dst =file_sink - - self.agc=gr.agc_cc(1e-7,1.0,1.0) #1e-7 - self.am_demod = gr.complex_to_mag () - self.set_blacklevel=gr.add_const_ff(0.0) - self.invert_and_scale = gr.multiply_const_ff (0.0) #-self.contrast *128.0*255.0/(200.0) - - # now wire it all together - #sample_rate=options.width*options.height*options.framerate - - process_type='do_no_sync' - if process_type=='do_no_sync': - self.connect (self.src, self.agc,self.am_demod, - self.invert_and_scale, self.set_blacklevel, - f2uc,self.dst) - elif process_type=='do_tv_sync_adv': - #defaults: gr.tv_sync_adv (double sampling_freq, unsigned - #int tv_format,bool output_active_video_only=false, bool - #do_invert=false, double wanted_black_level=0.0, double - #wanted_white_level=255.0, double avg_alpha=0.1, double - #initial_gain=1.0, double initial_offset=0.0,bool - #debug=false) - - #note, this block is not yet in cvs - self.tv_sync_adv=gr.tv_sync_adv(usrp_rate, 0, False, False, - 0.0, 255.0, 0.01, 1.0, 0.0, False) - self.connect (self.src, self.am_demod, self.invert_and_scale, - self.tv_sync_adv, s2f, f2uc, self.dst) - - elif process_type=='do_nullsink': - #self.connect (self.src, self.am_demod,self.invert_and_scale,f2uc,video_sink) - c2r=gr.complex_to_real() - nullsink=gr.null_sink(gr.sizeof_float) - self.connect (self.src, c2r,nullsink) #video_sink) - elif process_type=='do_tv_sync_corr': - frame_size=width*height #int(usrp_rate/25.0) - nframes=10# 32 - search_window=20*nframes - debug=False - video_alpha=0.3 #0.1 - corr_alpha=0.3 - - #Note: this block is not yet in cvs - tv_corr=gr.tv_correlator_ff(frame_size,nframes, search_window, - video_alpha, corr_alpha,debug) - shift=gr.add_const_ff(-0.7) - - self.connect (self.src, self.agc, self.am_demod, tv_corr, - self.invert_and_scale, self.set_blacklevel, - f2uc, self.dst) - else: # process_type=='do_test_image': - src_vertical_bars = gr.sig_source_f (usrp_rate, gr.GR_SIN_WAVE, - 10.0 *usrp_rate/320, 255,128) - self.connect(src_vertical_bars, f2uc, self.dst) - - self._build_gui(vbox, usrp_rate, usrp_rate, usrp_rate) - - - frange = self.u.get_freq_range() - if(frange.start() > self.tv_freq_max or frange.stop() < self.tv_freq_min): - sys.stderr.write("Radio does not support required frequency range.\n") - sys.exit(1) - if(options.freq < self.tv_freq_min or options.freq > self.tv_freq_max): - sys.stderr.write("Requested frequency is outside of required frequency range.\n") - sys.exit(1) - - # set initial values - self.set_gain(options.gain) - self.set_contrast(self.contrast) - self.set_brightness(options.brightness) - if not(self.set_freq(options.freq)): - self._set_status_msg("Failed to set initial frequency") - - - def _set_status_msg(self, msg, which=0): - self.frame.GetStatusBar().SetStatusText(msg, which) - - - def _build_gui(self, vbox, usrp_rate, demod_rate, audio_rate): - - def _form_set_freq(kv): - return self.set_freq(kv['freq']) - - - if 0: - self.src_fft = fftsink.fft_sink_c (self, self.panel, title="Data from USRP", - fft_size=512, sample_rate=usrp_rate) - self.connect (self.src, self.src_fft) - vbox.Add (self.src_fft.win, 4, wx.EXPAND) - - if 0: - post_demod_fft = fftsink.fft_sink_f (self, self.panel, title="Post Demod", - fft_size=512, sample_rate=demod_rate, - y_per_div=10, ref_level=-40) - self.connect (self.am_demod, post_demod_fft) - vbox.Add (post_demod_fft.win, 4, wx.EXPAND) - - if 0: - post_filt_fft = fftsink.fft_sink_f (self, self.panel, title="Post Filter", - fft_size=512, sample_rate=audio_rate, - y_per_div=10, ref_level=-40) - self.connect (self.set_blacklevel, post_filt) - vbox.Add (fft_win4, 4, wx.EXPAND) - - - # control area form at bottom - self.myform = myform = form.form() - - if not (self.u is None): - hbox = wx.BoxSizer(wx.HORIZONTAL) - hbox.Add((5,0), 0) - myform['freq'] = form.float_field( - parent=self.panel, sizer=hbox, label="Freq", weight=1, - callback=myform.check_input_and_call(_form_set_freq, self._set_status_msg)) - - hbox.Add((5,0), 0) - myform['freq_slider'] = \ - form.quantized_slider_field(parent=self.panel, sizer=hbox, weight=3, - range=(self.tv_freq_min, self.tv_freq_max, 0.25e6), - callback=self.set_freq) - hbox.Add((5,0), 0) - vbox.Add(hbox, 0, wx.EXPAND) - - hbox = wx.BoxSizer(wx.HORIZONTAL) - hbox.Add((5,0), 0) - - myform['contrast'] = \ - form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Contrast", - weight=3, range=(-2.0, 2.0, 0.1), - callback=self.set_contrast) - hbox.Add((5,0), 1) - - myform['brightness'] = \ - form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Brightness", - weight=3, range=(-255.0, 255.0, 1.0), - callback=self.set_brightness) - hbox.Add((5,0), 0) - - if not (self.u is None): - g = self.u.get_gain_range() - myform['gain'] = \ - form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain", - weight=3, range=(g.start(), g.stop(), g.step()), - callback=self.set_gain) - hbox.Add((5,0), 0) - vbox.Add(hbox, 0, wx.EXPAND) - - try: - self.knob = powermate.powermate(self.frame) - self.rot = 0 - powermate.EVT_POWERMATE_ROTATE (self.frame, self.on_rotate) - powermate.EVT_POWERMATE_BUTTON (self.frame, self.on_button) - except: - print "FYI: No Powermate or Contour Knob found" - - - def on_rotate (self, event): - self.rot += event.delta - if (self.state == "FREQ"): - if self.rot >= 3: - self.set_freq(self.freq + .1e6) - self.rot -= 3 - elif self.rot <=-3: - self.set_freq(self.freq - .1e6) - self.rot += 3 - elif (self.state == "CONTRAST"): - step = 0.1 - if self.rot >= 3: - self.set_contrast(self.contrast + step) - self.rot -= 3 - elif self.rot <=-3: - self.set_contrast(self.contrast - step) - self.rot += 3 - else: - step = 1 - if self.rot >= 3: - self.set_brightness(self.brightness + step) - self.rot -= 3 - elif self.rot <=-3: - self.set_brightness(self.brightness - step) - self.rot += 3 - - def on_button (self, event): - if event.value == 0: # button up - return - self.rot = 0 - if self.state == "FREQ": - self.state = "CONTRAST" - elif self.state == "CONTRAST": - self.state = "BRIGHTNESS" - else: - self.state = "FREQ" - self.update_status_bar () - - - def set_contrast (self, contrast): - self.contrast = contrast - self.invert_and_scale.set_k(-self.contrast *128.0*255.0/(200.0)) - self.myform['contrast'].set_value(self.contrast) - self.update_status_bar () - - def set_brightness (self, brightness): - self.brightness = brightness - self.set_blacklevel.set_k(self.brightness +255.0) - self.myform['brightness'].set_value(self.brightness) - self.update_status_bar () - - def set_freq(self, target_freq): - """ - Set the center frequency we're interested in. - - @param target_freq: frequency in Hz - @rypte: bool - - Tuning is a two step process. First we ask the front-end to - tune as close to the desired frequency as it can. Then we use - the result of that operation and our target_frequency to - determine the value for the digital down converter. - """ - if not (self.u is None): - r = self.u.set_center_freq(target_freq) - if r: - self.freq = target_freq - self.myform['freq'].set_value(target_freq) # update displayed value - self.myform['freq_slider'].set_value(target_freq) # update displayed value - self.update_status_bar() - self._set_status_msg("OK", 0) - return True - - self._set_status_msg("Failed", 0) - return False - - def set_gain(self, gain): - if not (self.u is None): - self.gain=gain - self.myform['gain'].set_value(gain) # update displayed value - self.u.set_gain(gain) - self.update_status_bar() - - def update_status_bar (self): - msg = "Setting:%s Contrast:%r Brightness:%r Gain: %r" % \ - (self.state, self.contrast,self.brightness,self.gain) - self._set_status_msg(msg, 1) - #self.src_fft.set_baseband_freq(self.freq) - - -if __name__ == '__main__': - app = stdgui2.stdapp (tv_rx_block, "USRP TV RX black-and-white") - app.MainLoop () |