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Diffstat (limited to 'gr-uhd/examples/python/usrp_tv_rcv_nogui.py')
| -rwxr-xr-x | gr-uhd/examples/python/usrp_tv_rcv_nogui.py | 214 |
1 files changed, 0 insertions, 214 deletions
diff --git a/gr-uhd/examples/python/usrp_tv_rcv_nogui.py b/gr-uhd/examples/python/usrp_tv_rcv_nogui.py deleted file mode 100755 index cfb36222c..000000000 --- a/gr-uhd/examples/python/usrp_tv_rcv_nogui.py +++ /dev/null @@ -1,214 +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. -# - -""" -Reads from a file and generates PAL TV pictures in black and white -which can be displayed using ImageMagick or realtime using -gr-video-sdl (To capture the input file Use usrp_rx_file.py, or use -usrp_rx_cfile.py --output-shorts if you have a recent enough -usrp_rx_cfile.py) - -Can also use usrp directly as capture source, but then you need a -higher decimation factor (64) and thus get a lower horizontal -resulution. There is no synchronisation yet. The sync blocks are in -development but not yet in cvs. - -""" - -from gnuradio import gr, eng_notation -from gnuradio import audio -from gnuradio import uhd -from gnuradio.eng_option import eng_option -from optparse import OptionParser -import sys - -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" - - -class my_top_block(gr.top_block): - - def __init__(self): - gr.top_block.__init__(self) - - usage=("%prog: [options] output_filename.\nSpecial output_filename" + \ - "\"sdl\" will use video_sink_sdl as realtime output window. " + \ - "You then need to have gr-video-sdl installed.\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("-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("-i", "--in-filename", type="string", default=None, - help="Use input file as source. samples must be " + \ - "interleaved shorts \n Use usrp_rx_file.py or " + \ - "usrp_rx_cfile.py --output-shorts.\n Special " + \ - "name \"usrp\" results in realtime capturing " + \ - "and processing using usrp.\n" + \ - "You then probably need a decimation factor of 64 or higher.") - parser.add_option("-f", "--freq", type="eng_float", default=519.25e6, - help="set frequency to FREQ.\nNote that the frequency of the video carrier is not at the middle of the TV channel", metavar="FREQ") - parser.add_option("-g", "--gain", type="eng_float", default=None, - help="set gain in dB (default is midpoint)") - 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("-r", "--repeat", action="store_false", default=True, - help="repeat in_file in a loop") - parser.add_option("-N", "--nframes", type="eng_float", default=None, - help="number of frames to collect [default=+inf]") - 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): - parser.print_help() - sys.stderr.write('You must specify the output. FILENAME or sdl \n'); - sys.exit(1) - - filename = args[0] - - self.tv_freq_min = options.freq_min - self.tv_freq_max = options.freq_max - - if options.in_filename is None: - parser.print_help() - sys.stderr.write('You must specify the input -i FILENAME or -i usrp\n'); - raise SystemExit, 1 - - if not (filename=="sdl"): - options.repeat=False - - input_rate = options.samp_rate - print "video sample rate %s" % (eng_notation.num_to_str(input_rate)) - - if not (options.in_filename=="usrp"): - # file is data source, capture with usr_rx_csfile.py - self.filesource = gr.file_source(gr.sizeof_short, - options.in_filename, - options.repeat) - self.istoc = gr.interleaved_short_to_complex() - self.connect(self.filesource,self.istoc) - self.src=self.istoc - else: - if options.freq is None: - parser.print_help() - sys.stderr.write('You must specify the frequency with -f FREQ\n'); - raise SystemExit, 1 - - # build the graph - 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(input_rate) - dev_rate = self.u.get_samp_rate() - - self.src=self.u - - 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.u.set_gain(options.gain) - - r = self.u.set_center_freq(options.freq) - if not r: - sys.stderr.write('Failed to set frequency\n') - raise SystemExit, 1 - - - 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(options.brightness +255.0) - self.invert_and_scale = gr.multiply_const_ff (-options.contrast *128.0*255.0/(200.0)) - self.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(input_rate/(lines_per_frame*frames_per_sec)) - height=int(lines_per_frame) - - if 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:" +filename - print "(Use the spacebar to advance to next frames)" - file_sink=gr.file_sink(gr.sizeof_char, filename) - self.dst =file_sink - - if options.nframes is None: - self.connect(self.src, self.agc) - else: - self.head = gr.head(gr.sizeof_gr_complex, int(options.nframes*width*height)) - self.connect(self.src, self.head, self.agc) - - self.connect (self.agc, self.am_demod, self.invert_and_scale, - self.set_blacklevel, self.f2uc, self.dst) - -if __name__ == '__main__': - try: - my_top_block().run() - except KeyboardInterrupt: - pass |