/*! \brief Public contructor.
* \param input_device Input device specifier.
* \param audio_device Audio output device specifier,
* e.g. hw:0 when using ALSA or Portaudio.
*
* \todo Option to use UHD device instead of FCD.
*/
receiver::receiver(const std::string input_device, const std::string audio_device)
: d_running(false),
d_input_rate(96000.0),
d_audio_rate(48000),
d_rf_freq(144800000.0),
d_filter_offset(0.0),
d_recording_wav(false),
d_sniffer_active(false),
d_iq_rev(false),
d_dc_cancel(false),
d_iq_balance(false),
d_demod(RX_DEMOD_OFF)
{
tb = gr_make_top_block("gqrx");
if (input_device.empty())
{
// FIXME: other OS
src = osmosdr_make_source_c("file=/dev/random,freq=428e6,rate=96000,repeat=true,throttle=true");
}
else
{
input_devstr = input_device;
src = osmosdr_make_source_c(input_device);
}
rx = make_nbrx(d_input_rate, d_audio_rate);
lo = gr_make_sig_source_c(d_input_rate, GR_SIN_WAVE, 0.0, 1.0);
mixer = gr_make_multiply_cc();
iq_swap = make_iq_swap_cc(false);
dc_corr = make_dc_corr_cc(d_input_rate, 1.0);
iq_fft = make_rx_fft_c(4096u, 0);
audio_fft = make_rx_fft_f(3072u);
audio_gain0 = gr_make_multiply_const_ff(0.1);
audio_gain1 = gr_make_multiply_const_ff(0.1);
#ifdef WITH_PULSEAUDIO //pafix
audio_snk = make_pa_sink(audio_device, d_audio_rate, "GQRX", "Audio output");
#else
audio_snk = audio_make_sink(d_audio_rate, audio_device, true);
#endif
output_devstr = audio_device;
/* wav sink and source is created when rec/play is started */
audio_null_sink = gr_make_null_sink(sizeof(float));
sniffer = make_sniffer_f();
/* sniffer_rr is created at each activation. */
set_demod(RX_DEMOD_NFM);
}
/*! \brief Public contructor.
* \param input_device Input device specifier.
* \param audio_device Audio output device specifier,
* e.g. hw:0 when using ALSA or Portaudio.
*
* \todo Option to use UHD device instead of FCD.
*/
receiver::receiver(const std::string input_device, const std::string audio_device)
: d_running(false),
d_input_rate(96000.0),
d_audio_rate(48000),
d_rf_freq(144800000.0),
d_filter_offset(0.0),
d_recording_iq(false),
d_recording_wav(false),
d_sniffer_active(false),
d_iq_rev(false),
d_dc_cancel(false),
d_iq_balance(false),
d_demod(RX_DEMOD_OFF)
{
tb = gr::make_top_block("gqrx");
if (input_device.empty())
{
// FIXME: other OS
src = osmosdr::source::make("file=/dev/random,freq=428e6,rate=96000,repeat=true,throttle=true");
}
else
{
input_devstr = input_device;
src = osmosdr::source::make(input_device);
}
// create I/Q sink and close it
iq_sink = gr::blocks::file_sink::make(sizeof(gr_complex), "/dev/null", false);
iq_sink->set_unbuffered(true);
iq_sink->close();
rx = make_nbrx(d_input_rate, d_audio_rate);
lo = gr::analog::sig_source_c::make(d_input_rate, gr::analog::GR_SIN_WAVE, 0.0, 1.0);
mixer = gr::blocks::multiply_cc::make();
iq_swap = make_iq_swap_cc(false);
dc_corr = make_dc_corr_cc(d_input_rate, 1.0);
iq_fft = make_rx_fft_c(4096u, 0);
audio_fft = make_rx_fft_f(4096u);
audio_gain0 = gr::blocks::multiply_const_ff::make(0.1);
audio_gain1 = gr::blocks::multiply_const_ff::make(0.1);
wav_sink = gr::blocks::wavfile_sink::make("/dev/null", 2,
(unsigned int) d_audio_rate,
16);
audio_udp_sink = make_udp_sink_f();
#ifdef WITH_PULSEAUDIO
audio_snk = make_pa_sink(audio_device, d_audio_rate, "GQRX", "Audio output");
#else
audio_snk = gr::audio::sink::make(d_audio_rate, audio_device, true);
#endif
output_devstr = audio_device;
/* wav sink and source is created when rec/play is started */
audio_null_sink0 = gr::blocks::null_sink::make(sizeof(float));
audio_null_sink1 = gr::blocks::null_sink::make(sizeof(float));
sniffer = make_sniffer_f();
/* sniffer_rr is created at each activation. */
set_demod(RX_DEMOD_NFM);
#ifndef QT_NO_DEBUG_OUTPUT
gr::prefs pref;
std::cout << "Using audio backend: "
<< pref.get_string("audio", "audio_module", "N/A")
<< std::endl;
#endif
}
/**
* @brief Public contructor.
* @param input_device Input device specifier.
* @param audio_device Audio output device specifier,
* e.g. hw:0 when using ALSA or Portaudio.
*/
receiver::receiver(const std::string input_device,
const std::string audio_device,
unsigned int decimation)
: d_running(false),
d_input_rate(96000.0),
d_audio_rate(48000),
d_decim(decimation),
d_rf_freq(144800000.0),
d_filter_offset(0.0),
d_cw_offset(0.0),
d_recording_iq(false),
d_recording_wav(false),
d_sniffer_active(false),
d_iq_rev(false),
d_dc_cancel(false),
d_iq_balance(false),
d_demod(RX_DEMOD_OFF)
{
tb = gr::make_top_block("gqrx");
if (input_device.empty())
{
src = osmosdr::source::make("file="+get_random_file()+",freq=428e6,rate=96000,repeat=true,throttle=true");
}
else
{
input_devstr = input_device;
src = osmosdr::source::make(input_device);
}
// input decimator
if (d_decim >= 2)
{
try
{
input_decim = make_hbf_decim(d_decim);
}
catch (std::range_error &e)
{
std::cout << "Error creating input decimator " << d_decim
<< ": " << e.what() << std::endl
<< "Using decimation 1." << std::endl;
d_decim = 1;
}
d_quad_rate = d_input_rate / (double)d_decim;
}
else
{
d_quad_rate = d_input_rate;
}
// create I/Q sink and close it
iq_sink = gr::blocks::file_sink::make(sizeof(gr_complex), get_null_file().c_str(), true);
iq_sink->set_unbuffered(true);
iq_sink->close();
rx = make_nbrx(d_quad_rate, d_audio_rate);
lo = gr::analog::sig_source_c::make(d_quad_rate, gr::analog::GR_SIN_WAVE,
0.0, 1.0);
mixer = gr::blocks::multiply_cc::make();
iq_swap = make_iq_swap_cc(false);
dc_corr = make_dc_corr_cc(d_quad_rate, 1.0);
iq_fft = make_rx_fft_c(8192u, 0);
audio_fft = make_rx_fft_f(8192u);
audio_gain0 = gr::blocks::multiply_const_ff::make(0.1);
audio_gain1 = gr::blocks::multiply_const_ff::make(0.1);
wav_sink = gr::blocks::wavfile_sink::make(get_null_file().c_str(), 2,
(unsigned int) d_audio_rate,
16);
audio_udp_sink = make_udp_sink_f();
#ifdef WITH_PULSEAUDIO
audio_snk = make_pa_sink(audio_device, d_audio_rate, "GQRX", "Audio output");
#else
audio_snk = gr::audio::sink::make(d_audio_rate, audio_device, true);
#endif
output_devstr = audio_device;
/* wav sink and source is created when rec/play is started */
audio_null_sink0 = gr::blocks::null_sink::make(sizeof(float));
audio_null_sink1 = gr::blocks::null_sink::make(sizeof(float));
sniffer = make_sniffer_f();
/* sniffer_rr is created at each activation. */
set_demod(RX_DEMOD_NFM);
#ifndef QT_NO_DEBUG_OUTPUT
gr::prefs pref;
std::cout << "Using audio backend: "
<< pref.get_string("audio", "audio_module", "N/A")
<< std::endl;
#endif
}
