#!/usr/bin/env python
# ----------------------------------------------------------------
# Stand-alone mc4020 scope application
# ----------------------------------------------------------------
from gnuradio import gr
from gnuradio import mc4020
#from gnuradio import audio
from gnuradio.eng_option import eng_option
from gnuradio.wxgui import stdgui, scopesink,fftsink
from optparse import OptionParser
import wx

class app_flow_graph (stdgui.gui_flow_graph):
    def __init__(self, frame, panel, vbox, argv):
        stdgui.gui_flow_graph.__init__ (self, frame, panel, vbox, argv)

        # build our flow graph
        #input_rate = 1e6
        #input_rate = 44100 #1e6
	#src0 = audio.source (input_rate)
        input_rate = 674*1024*50 #35468950 #20e6
	#define BTTV_EXTEND_RAW_LINES 0x10000000 //use modified bttv driver which can set RAWLINES to the maximum of 674. (corresponding to 304 of the 312.5 lines)  The original bttv driver sets this hardcoded to 640 whatever you tell it to use.
	#define BTTV_DO_NOT_EMULATE_AC_COUPLING 0x01000000
	#define BTTV_NOGAP 0x00100000
        src = mc4020.source (input_rate, mc4020.BTTV_EXTEND_RAW_LINES |mc4020.BTTV_DO_NOT_EMULATE_AC_COUPLING | mc4020.BTTV_NOGAP)
        cvt = gr.short_to_float ()
        #block, fft_win = fftsink.make_fft_sink_c (self, panel, "Rx Data", 512, input_rate)

        #src0 = gr.sig_source_f (input_rate, gr.GR_SIN_WAVE, 25.1e3, 1e3)
        #src1 = gr.sig_source_f (input_rate, gr.GR_COS_WAVE, 25.1e3, 1e3)
        block, fft_win = scopesink.make_scope_sink_f (self, panel, "Secret Data", input_rate)
        #self.connect (src0, (block, 0))
        
        self.connect (src, cvt)
	self.connect (cvt, (block, 0))
        #self.connect (cvt, block)
	#self.connect (cvt, (block, 0))

        vbox.Add (fft_win, 1, wx.EXPAND)


def main ():
    app = stdgui.stdapp (app_flow_graph, "O'Scope Test App")
    app.MainLoop ()

if __name__ == '__main__':
    main ()

# ----------------------------------------------------------------