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added SNR meter smoothing

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This commit is contained in:
AlexandreRouma 2023-07-10 04:41:34 +02:00
parent 8d05c1e181
commit 168e28cc44
4 changed files with 63 additions and 18 deletions
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2
core/src/core.cpp
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@ -119,6 +119,8 @@ int sdrpp_main(int argc, char* argv[]) {
defConfig["fftHoldSpeed"] = 60;
defConfig["fftSmoothing"] = false;
defConfig["fftSmoothingSpeed"] = 100;
defConfig["snrSmoothing"] = false;
defConfig["snrSmoothingSpeed"] = 20;
defConfig["fastFFT"] = false;
defConfig["fftHeight"] = 300;
defConfig["fftRate"] = 20;

40
core/src/gui/menus/display.cpp
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@ -25,6 +25,8 @@ namespace displaymenu {
int fftHoldSpeed = 60;
bool fftSmoothing = false;
int fftSmoothingSpeed = 100;
bool snrSmoothing = false;
int snrSmoothingSpeed = 20;
OptionList<float, float> uiScales;
@ -63,6 +65,7 @@ namespace displaymenu {
void updateFFTSpeeds() {
gui::waterfall.setFFTHoldSpeed((float)fftHoldSpeed / ((float)fftRate * 10.0f));
gui::waterfall.setFFTSmoothingSpeed(std::min<float>((float)fftSmoothingSpeed / (float)(fftRate * 10.0f), 1.0f));
gui::waterfall.setSNRSmoothingSpeed(std::min<float>((float)snrSmoothingSpeed / (float)(fftRate * 10.0f), 1.0f));
}
void init() {
@ -111,6 +114,9 @@ namespace displaymenu {
fftSmoothing = core::configManager.conf["fftSmoothing"];
fftSmoothingSpeed = core::configManager.conf["fftSmoothingSpeed"];
gui::waterfall.setFFTSmoothing(fftSmoothing);
snrSmoothing = core::configManager.conf["snrSmoothing"];
snrSmoothingSpeed = core::configManager.conf["snrSmoothingSpeed"];
gui::waterfall.setSNRSmoothing(snrSmoothing);
updateFFTSpeeds();
// Define and load UI scales
@ -151,15 +157,7 @@ namespace displaymenu {
core::configManager.conf["fftHold"] = fftHold;
core::configManager.release(true);
}
if (ImGui::Checkbox("FFT Smoothing##_sdrpp", &fftSmoothing)) {
gui::waterfall.setFFTSmoothing(fftSmoothing);
core::configManager.acquire();
core::configManager.conf["fftSmoothing"] = fftSmoothing;
core::configManager.release(true);
}
ImGui::LeftLabel("FFT Hold Speed");
ImGui::SameLine();
ImGui::FillWidth();
if (ImGui::InputInt("##sdrpp_fft_hold_speed", &fftHoldSpeed)) {
updateFFTSpeeds();
@ -168,7 +166,13 @@ namespace displaymenu {
core::configManager.release(true);
}
ImGui::LeftLabel("FFT Smoothing Speed");
if (ImGui::Checkbox("FFT Smoothing##_sdrpp", &fftSmoothing)) {
gui::waterfall.setFFTSmoothing(fftSmoothing);
core::configManager.acquire();
core::configManager.conf["fftSmoothing"] = fftSmoothing;
core::configManager.release(true);
}
ImGui::SameLine();
ImGui::FillWidth();
if (ImGui::InputInt("##sdrpp_fft_smoothing_speed", &fftSmoothingSpeed)) {
fftSmoothingSpeed = std::max<int>(fftSmoothingSpeed, 1);
@ -178,6 +182,22 @@ namespace displaymenu {
core::configManager.release(true);
}
if (ImGui::Checkbox("SNR Smoothing##_sdrpp", &snrSmoothing)) {
gui::waterfall.setSNRSmoothing(snrSmoothing);
core::configManager.acquire();
core::configManager.conf["snrSmoothing"] = snrSmoothing;
core::configManager.release(true);
}
ImGui::SameLine();
ImGui::FillWidth();
if (ImGui::InputInt("##sdrpp_snr_smoothing_speed", &snrSmoothingSpeed)) {
snrSmoothingSpeed = std::max<int>(snrSmoothingSpeed, 1);
updateFFTSpeeds();
core::configManager.acquire();
core::configManager.conf["snrSmoothingSpeed"] = snrSmoothingSpeed;
core::configManager.release(true);
}
ImGui::LeftLabel("High-DPI Scaling");
ImGui::FillWidth();
if (ImGui::Combo("##sdrpp_ui_scale", &uiScaleId, uiScales.txt)) {

26
core/src/gui/widgets/waterfall.cpp
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@ -886,15 +886,22 @@ namespace ImGui {
// Apply smoothing if enabled
if (fftSmoothing && latestFFT != NULL && smoothingBuf != NULL && fftLines != 0) {
std::lock_guard<std::mutex> lck2(smoothingBufMtx);
volk_32f_s32f_multiply_32f(latestFFT, latestFFT, smoothingAlpha, dataWidth);
volk_32f_s32f_multiply_32f(smoothingBuf, smoothingBuf, smoothingBeta, dataWidth);
volk_32f_s32f_multiply_32f(latestFFT, latestFFT, fftSmoothingAlpha, dataWidth);
volk_32f_s32f_multiply_32f(smoothingBuf, smoothingBuf, fftSmoothingBeta, dataWidth);
volk_32f_x2_add_32f(smoothingBuf, latestFFT, smoothingBuf, dataWidth);
memcpy(latestFFT, smoothingBuf, dataWidth * sizeof(float));
}
if (selectedVFO != "" && vfos.size() > 0) {
float dummy;
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, selectedVFOSNR);
if (snrSmoothing) {
float newSNR = 0.0f;
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, newSNR);
selectedVFOSNR = (snrSmoothingBeta*selectedVFOSNR) + (snrSmoothingAlpha*newSNR);
}
else {
calculateVFOSignalInfo(waterfallVisible ? &rawFFTs[currentFFTLine * rawFFTSize] : rawFFTs, vfos[selectedVFO], dummy, selectedVFOSNR);
}
}
// If FFT hold is enabled, update it
@ -1155,8 +1162,17 @@ namespace ImGui {
void WaterFall::setFFTSmoothingSpeed(float speed) {
std::lock_guard<std::mutex> lck(smoothingBufMtx);
smoothingAlpha = speed;
smoothingBeta = 1.0f - speed;
fftSmoothingAlpha = speed;
fftSmoothingBeta = 1.0f - speed;
}
void WaterFall::setSNRSmoothing(bool enabled) {
snrSmoothing = enabled;
}
void WaterFall::setSNRSmoothingSpeed(float speed) {
snrSmoothingAlpha = speed;
snrSmoothingBeta = 1.0f - speed;
}
float* WaterFall::acquireLatestFFT(int& width) {

13
core/src/gui/widgets/waterfall.h
View File

@ -172,6 +172,9 @@ namespace ImGui {
void setFFTSmoothing(bool enabled);
void setFFTSmoothingSpeed(float speed);
void setSNRSmoothing(bool enabled);
void setSNRSmoothingSpeed(float speed);
float* acquireLatestFFT(int& width);
void releaseLatestFFT();
@ -185,7 +188,7 @@ namespace ImGui {
bool mouseInFFT = false;
bool mouseInWaterfall = false;
float selectedVFOSNR = NAN;
float selectedVFOSNR = 0.0f;
bool centerFrequencyLocked = false;
@ -331,8 +334,12 @@ namespace ImGui {
float fftHoldSpeed = 0.3f;
bool fftSmoothing = false;
float smoothingAlpha = 0.5;
float smoothingBeta = 0.5;
float fftSmoothingAlpha = 0.5;
float fftSmoothingBeta = 0.5;
bool snrSmoothing = false;
float snrSmoothingAlpha = 0.5;
float snrSmoothingBeta = 0.5;
// UI Select elements
bool fftResizeSelect = false;