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...

3 files changed, 0 insertions, 619 deletions

diff --git a/gnuradio-examples/python/usrp/Makefile.am b/gnuradio-examples/python/usrp/Makefile.am
index b1ebe8adb..3b6607c37 100644
--- a/gnuradio-examples/python/usrp/Makefile.am
+++ b/gnuradio-examples/python/usrp/Makefile.am
@@ -30,6 +30,4 @@ dist_ourdata_SCRIPTS = 			\
 	usrp_benchmark_usb.py		\
 	usrp_spectrum_sense.py		\
 	usrp_test_loop_lfsr.py		\
-	usrp_tv_rcv_nogui.py		\
-	usrp_tv_rcv.py			\
 	usrp_wxapt_rcv.py
diff --git a/gnuradio-examples/python/usrp/usrp_tv_rcv.py b/gnuradio-examples/python/usrp/usrp_tv_rcv.py
deleted file mode 100755
index 4e13a83ab..000000000
--- a/gnuradio-examples/python/usrp/usrp_tv_rcv.py
+++ /dev/null
@@ -1,418 +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.
-# 
-
-"""
-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 (is in gnuradio cvs).
-When you use a file source, in stead 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, gru, eng_notation, optfir
-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 usrp
-from gnuradio.eng_option import eng_option
-from gnuradio.wxgui import slider, powermate
-from gnuradio.wxgui import stdgui2, fftsink2, form
-from optparse import OptionParser
-from usrpm import usrp_dbid
-import sys
-import math
-import wx
-
-# To debug, insert this in your test code...
-#import os
-#print 'Blocked waiting for GDB attach (pid = %d)' % (os.getpid(),)
-#raw_input ('Press Enter to continue: ')
-# remainder of your test code follows...
-
-def pick_subdevice(u):
-    """
-    The user didn't specify a subdevice on the command line.
-    Try for one of these, in order: TV_RX, BASIC_RX, whatever is on side A.
-
-    @return a subdev_spec
-    """
-    return usrp.pick_subdev(u, (usrp_dbid.TV_RX,
-                                usrp_dbid.TV_RX_REV_2,
-				usrp_dbid.TV_RX_REV_3,
-				usrp_dbid.TV_RX_MIMO,
-                                usrp_dbid.TV_RX_REV_2_MIMO,
-				usrp_dbid.TV_RX_REV_3_MIMO,
-                                usrp_dbid.BASIC_RX))
-
-
-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)
-        parser.add_option("-R", "--rx-subdev-spec", type="subdev", default=None,
-                          help="select USRP Rx side A or B (default=A)")
-        parser.add_option("-d", "--decim", type="int", default=64,
-                          help="set fgpa decimation rate to DECIM [default=%default]")
-        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("-8", "--width-8", action="store_true", default=False,
-                          help="Enable 8-bit samples across USB")
-        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("-N", "--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) 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
-
-        # build graph
-
-        self.u=None
-
-        usrp_decim = options.decim # 32
-
-        if not (options.out_filename=="sdl"):
-          options.repeat=False
-
-        if not ((filename is None) or (filename=="usrp")):
-          self.filesource = gr.file_source(gr.sizeof_short,filename,options.repeat) # file is data source
-          self.istoc = gr.interleaved_short_to_complex()
-          self.connect(self.filesource,self.istoc)
-          adc_rate=64e6
-          self.src=self.istoc
-          options.gain=0.0
-          self.gain=0.0
-        else:
-          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)
-          self.u = usrp.source_c(0,fpga_filename=self.fpga_filename)                    # usrp is data source
-          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)
-          adc_rate = self.u.adc_rate()                # 64 MS/s
-          self.u.set_decim_rate(usrp_decim)
-          if options.rx_subdev_spec is None:
-            options.rx_subdev_spec = pick_subdevice(self.u)
-          self.u.set_mux(usrp.determine_rx_mux_value(self.u, options.rx_subdev_spec))
-          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.src=self.u
-
-        usrp_rate = adc_rate / usrp_decim           # 320 kS/s
-
-        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)
-          self.tv_sync_adv=gr.tv_sync_adv(usrp_rate,0,False,False,0.0,255.0,0.01,1.0,0.0,False) #note, this block is not yet in cvs
-          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
-          tv_corr=gr.tv_correlator_ff(frame_size,nframes, search_window, video_alpha, corr_alpha,debug) #Note: this block is not yet in cvs
-          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) #self.agc,
-        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)
-
-   
-        if abs(options.freq) < 1e6:
-            options.freq *= 1e6
-
-        # 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=(50.25e6, 900.25e6, 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):
-          myform['gain'] = \
-              form.quantized_slider_field(parent=self.panel, sizer=hbox, label="Gain",
-                                        weight=3, range=self.subdev.gain_range(),
-                                        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 = usrp.tune(self.u, 0, self.subdev, 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.subdev.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 ()
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 e6a8de1be..000000000
--- 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