From 34fbf0c82a09be1f14fc85829317a2ee4bf0b793 Mon Sep 17 00:00:00 2001
From: Tom Rondeau <trondeau@vt.edu>
Date: Thu, 6 Oct 2011 14:37:12 -0400
Subject: uhd: Moved USRP analog TV receiver examples to gr-uhd/examples. They
seem to run with the UHD, but I can't really test them since there's no NTSC
signals around...
---
gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py | 199 ---------------------
1 file changed, 199 deletions(-)
delete mode 100755 gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py
(limited to 'gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py')
diff --git a/gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py b/gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py
deleted file mode 100755
index e6a8de1be9..0000000000
--- a/gnuradio-examples/python/usrp/usrp_tv_rcv_nogui.py
+++ /dev/null
@@ -1,199 +0,0 @@
-#!/usr/bin/env python
-#
-# Copyright 2005,2006,2007 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 usrp
-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. \n Special 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("-R", "--rx-subdev-spec", type="subdev", default=(0, 0),
- help="select USRP Rx side A or B (default=A)")
- 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("-d", "--decim", type="int", default=8,
- help="set fgpa decimation rate to DECIM [default=%default]")
- 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=None,
- 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("-8", "--width-8", action="store_true", default=False,
- help="Enable 8-bit samples across USB")
- parser.add_option("-N", "--nframes", type="eng_float", default=None,
- help="number of frames to collect [default=+inf]")
- parser.add_option( "--no-hb", action="store_true", default=False,
- help="don't use halfband filter in usrp")
- (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]
-
- 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
-
- if not (options.in_filename=="usrp"):
- self.filesource = gr.file_source(gr.sizeof_short,options.in_filename,options.repeat) # file is data source, capture with usr_rx_csfile.py
- self.istoc = gr.interleaved_short_to_complex()
- self.connect(self.filesource,self.istoc)
- self.adc_rate=64e6
- 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
- if abs(options.freq) < 1e6:
- options.freq *= 1e6
- if options.no_hb or (options.decim<8):
- self.fpga_filename="std_4rx_0tx.rbf" #contains 4 Rx paths without halfbands and 0 tx paths
- else:
- self.fpga_filename="std_2rxhb_2tx.rbf" # contains 2 Rx paths with halfband filters and 2 tx paths (the default)
-
- # build the graph
- self.u = usrp.source_c(decim_rate=options.decim,fpga_filename=self.fpga_filename)
- self.src=self.u
- if options.width_8:
- sample_width = 8
- sample_shift = 8
- format = self.u.make_format(sample_width, sample_shift)
- r = self.u.set_format(format)
- self.adc_rate=self.u.adc_freq()
- if options.rx_subdev_spec is None:
- options.rx_subdev_spec = usrp.pick_rx_subdevice(self.u)
- self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
- # determine the daughterboard subdevice we're using
- self.subdev = usrp.selected_subdev(self.u, options.rx_subdev_spec)
- print "Using RX d'board %s" % (self.subdev.side_and_name(),)
-
- if options.gain is None:
- # if no gain was specified, use the mid-point in dB
- g = self.subdev.gain_range()
- options.gain = float(g[0]+g[1])/2
- self.subdev.set_gain(options.gain)
-
- r = self.u.tune(0, self.subdev, options.freq)
- if not r:
- sys.stderr.write('Failed to set frequency\n')
- raise SystemExit, 1
-
- input_rate = self.adc_rate / options.decim
- print "video sample rate %s" % (eng_notation.num_to_str(input_rate))
-
- 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
--
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