#!/usr/bin/env python
##################################################
# Gnuradio Python Flow Graph
# Title: Top Block
# Generated: Fri Nov 15 12:03:15 2013
##################################################

from gnuradio import analog
from gnuradio import audio
from gnuradio import eng_notation
from gnuradio import filter
from gnuradio import gr
from gnuradio.eng_option import eng_option
from gnuradio.filter import firdes
from grc_gnuradio import wxgui as grc_wxgui
from optparse import OptionParser
import wx

class top_block(grc_wxgui.top_block_gui):

    def __init__(self):
        grc_wxgui.top_block_gui.__init__(self, title="Top Block")

        ##################################################
        # Variables
        ##################################################
        self.samp_rate = samp_rate = 1e6

        ##################################################
        # Blocks
        ##################################################
        self.rational_resampler_xxx_0 = filter.rational_resampler_fff(
                interpolation=2,
                decimation=7,
                taps=None,
                fractional_bw=None,
        )
        self.audio_sink_0 = audio.sink(24000, "", True)
        self.analog_sig_source_x_0 = analog.sig_source_f(samp_rate, analog.GR_COS_WAVE, 10000, 1, 0)

        ##################################################
        # Connections
        ##################################################
        self.connect((self.analog_sig_source_x_0, 0), (self.rational_resampler_xxx_0, 0))
        self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 0))
        self.connect((self.rational_resampler_xxx_0, 0), (self.audio_sink_0, 1))


# QT sink close method reimplementation

    def get_samp_rate(self):
        return self.samp_rate

    def set_samp_rate(self, samp_rate):
        self.samp_rate = samp_rate
        self.analog_sig_source_x_0.set_sampling_freq(self.samp_rate)

if __name__ == '__main__':
    import ctypes
    import os
    if os.name == 'posix':
        try:
            x11 = ctypes.cdll.LoadLibrary('libX11.so')
            x11.XInitThreads()
        except:
            print "Warning: failed to XInitThreads()"
    parser = OptionParser(option_class=eng_option, usage="%prog: [options]")
    (options, args) = parser.parse_args()
    tb = top_block()
    tb.Start(True)
    tb.Wait()