Merge pull request #110 from strijar/audio-spectrum

Audio spectrum

firmware/application/apps/analog_audio_app.cpp

@@ -83,6 +83,32 @@ NBFMOptionsView::NBFMOptionsView(
 	};
 }
 
+/* SPECOptionsView *******************************************************/
+
+SPECOptionsView::SPECOptionsView(
+	AnalogAudioView* view, const Rect parent_rect, const Style* const style
+) : View { parent_rect }
+{
+	set_style(style);
+
+	add_children({
+		&label_config,
+		&options_config,
+		&text_speed,
+		&field_speed
+	});
+
+	options_config.set_selected_index(view->get_spec_bw_index());
+	options_config.on_change = [this, view](size_t n, OptionsField::value_t bw) {
+		view->set_spec_bw(n, bw);
+	};
+
+	field_speed.set_value(view->get_spec_trigger());
+	field_speed.on_change = [this, view](int32_t v) {
+		view->set_spec_trigger(v);
+	};
+}
+
 /* AnalogAudioView *******************************************************/
 
 AnalogAudioView::AnalogAudioView(
@@ -157,6 +183,29 @@ AnalogAudioView::AnalogAudioView(
     on_modulation_changed(static_cast<ReceiverModel::Mode>(modulation));
 }
 
+size_t AnalogAudioView::get_spec_bw_index() {
+    return spec_bw_index;
+}
+
+void AnalogAudioView::set_spec_bw(size_t index, uint32_t bw) {
+    spec_bw_index = index;
+    spec_bw = bw;
+
+    baseband::set_spectrum(bw, spec_trigger);
+    receiver_model.set_sampling_rate(bw);
+    receiver_model.set_baseband_bandwidth(bw/2);
+}
+
+uint16_t AnalogAudioView::get_spec_trigger() {
+    return spec_trigger;
+}
+
+void AnalogAudioView::set_spec_trigger(uint16_t trigger) {
+    spec_trigger = trigger;
+
+    baseband::set_spectrum(spec_bw, spec_trigger);
+}
+
 AnalogAudioView::~AnalogAudioView() {
 	// TODO: Manipulating audio codec here, and in ui_receiver.cpp. Good to do
 	// both?
@@ -272,6 +321,7 @@ void AnalogAudioView::on_show_options_modulation() {
 		break;
 	
 	case ReceiverModel::Mode::SpectrumAnalysis:
+		widget = std::make_unique<SPECOptionsView>(this, nbfm_view_rect, &style_options_group);
 		waterfall.show_audio_spectrum_view(false);
 		text_ctcss.hidden(true);
 		break;
@@ -315,15 +365,17 @@ void AnalogAudioView::update_modulation(const ReceiverModel::Mode modulation) {
 	}
 
 	baseband::run_image(image_tag);
-	
+
 	if (modulation == ReceiverModel::Mode::SpectrumAnalysis) {
-		baseband::set_spectrum(20000000, 127);
+		baseband::set_spectrum(spec_bw, spec_trigger);
 	}
 
 	const auto is_wideband_spectrum_mode = (modulation == ReceiverModel::Mode::SpectrumAnalysis);
 	receiver_model.set_modulation(modulation);
-	receiver_model.set_sampling_rate(is_wideband_spectrum_mode ? 20000000 : 3072000);
+
-	receiver_model.set_baseband_bandwidth(is_wideband_spectrum_mode ? 12000000 : 1750000);
+	receiver_model.set_sampling_rate(is_wideband_spectrum_mode ? spec_bw : 3072000);
+	receiver_model.set_baseband_bandwidth(is_wideband_spectrum_mode ? spec_bw/2 : 1750000);
+
 	receiver_model.enable();
 
 	// TODO: This doesn't belong here! There's a better way.

firmware/application/apps/analog_audio_app.hpp

@@ -94,6 +94,43 @@ private:
 	};
 };
 
+class AnalogAudioView;
+
+class SPECOptionsView : public View {
+public:
+	SPECOptionsView(AnalogAudioView* view, const Rect parent_rect, const Style* const style);
+
+private:
+	Text label_config {
+		{ 0 * 8, 0 * 16, 2 * 8, 1 * 16 },
+		"BW",
+	};
+	OptionsField options_config {
+		{ 3 * 8, 0 * 16 },
+		4,
+		{
+			{ "20m ", 20000000 },
+			{ "10m ", 10000000 },
+			{ " 5m ", 5000000 },
+			{ " 2m ", 2000000 },
+			{ " 1m ", 1000000 },
+			{ "500k", 500000 },
+		}
+	};
+	
+	Text text_speed {
+		{ 9 * 8, 0 * 16, 8 * 8, 1 * 16 },
+		"SP   /63"
+	};
+	NumberField field_speed {
+		{ 12 * 8, 0 * 16 },
+		2,
+		{ 0, 63 },
+		1,
+		' ',
+	};
+};
+
 class AnalogAudioView : public View {
 public:
 	AnalogAudioView(NavigationView& nav);
@@ -106,13 +143,23 @@ public:
 	void focus() override;
 
 	std::string title() const override { return "Analog audio"; };
-	
+
+	size_t get_spec_bw_index();
+	void set_spec_bw(size_t index, uint32_t bw);
+
+	uint16_t get_spec_trigger();
+	void set_spec_trigger(uint16_t trigger);
+
 private:
 	static constexpr ui::Dim header_height = 3 * 16;
 
 	const Rect options_view_rect { 0 * 8, 1 * 16, 30 * 8, 1 * 16 };
 	const Rect nbfm_view_rect { 0 * 8, 1 * 16, 18 * 8, 1 * 16 };
 
+	size_t spec_bw_index = 0;
+	uint32_t spec_bw = 20000000;
+	uint16_t spec_trigger = 63;
+
 	NavigationView& nav_;
 	//bool exit_on_squelch { false };