Added an QRSS example.

examples/CMakeLists.txt

@@ -15,9 +15,6 @@ IF(SDR_WITH_PORTAUDIO)
  add_executable(sdr_rec sdr_rec.cc)
  target_link_libraries(sdr_rec ${LIBS} libsdr)
 
- add_executable(sdr_wspr sdr_wspr.cc)
- target_link_libraries(sdr_wspr ${LIBS} libsdr)
-
  add_executable(sdr_afsk1200 sdr_afsk1200.cc)
  target_link_libraries(sdr_afsk1200 ${LIBS} libsdr)
 ENDIF(SDR_WITH_PORTAUDIO)
@@ -30,6 +27,4 @@ ENDIF(SDR_WITH_QT5 AND SDR_WITH_FFTW AND SDR_WITH_PORTAUDIO)
 add_executable(sdr_psk31 sdr_psk31.cc)
 target_link_libraries(sdr_psk31 ${LIBS} ${QT_LIBRARIES} libsdr libsdr-gui)
 
-add_executable(sdr_rtty sdr_rtty.cc)
-target_link_libraries(sdr_rtty ${LIBS} libsdr)
 

examples/sdr_qrss.cc

@@ -0,0 +1,60 @@
+#include "sdr.hh"
+#include "rtlsource.hh"
+#include "baseband.hh"
+#include "utils.hh"
+#include "gui/gui.hh"
+#include <signal.h>
+#include "portaudio.hh"
+
+#include <QApplication>
+#include <QMainWindow>
+#include <QThread>
+
+using namespace sdr;
+
+static void __sigint_handler(int signo) {
+  // On SIGINT -> stop queue properly
+  Queue::get().stop();
+}
+
+#define F_SAMPLE 11000.0
+#define B_SIZE   16384
+
+int main(int argc, char *argv[])
+{
+  Queue &queue = Queue::get();
+
+  // Register handler:
+  signal(SIGINT, __sigint_handler);
+
+  PortAudio::init();
+
+  QApplication app(argc, argv);
+
+  QMainWindow        *win       = new QMainWindow();
+  gui::Spectrum      *spec      = new gui::Spectrum(F_SAMPLE/B_SIZE, 1024, 8);
+  gui::WaterFallView *spec_view = new gui::WaterFallView(spec);
+  win->setCentralWidget(spec_view);
+  win->setMinimumSize(640, 240);
+
+  win->show();
+
+  // Assemble processing chain
+  PortSource< int16_t > src(F_SAMPLE, 2048);
+  AGC< int16_t > agc;
+
+  src.connect(&agc);
+  agc.connect(spec);
+
+  queue.addIdle(&src, &PortSource< int16_t >::next);
+
+  queue.start();
+  app.exec();
+
+  queue.stop();
+  queue.wait();
+
+  PortAudio::terminate();
+
+  return 0;
+}