CLEANUP: some compiler and static analysis warnings

src/process/FFTDataDistributor.cpp

@@ -4,7 +4,7 @@
 #include "FFTDataDistributor.h"
 
 FFTDataDistributor::FFTDataDistributor() : outputBuffers("FFTDataDistributorBuffers"), fftSize(DEFAULT_FFT_SIZE), linesPerSecond(DEFAULT_WATERFALL_LPS), lineRateAccum(0.0) {
-    bufferedItems = 0;
+
 }
 
 void FFTDataDistributor::setFFTSize(unsigned int fftSize) {
@@ -60,14 +60,14 @@ void FFTDataDistributor::process() {
 		double lineRateStep = ((double)linesPerSecond * inputTime)/(double)inputLines;
 
 		if (bufferedItems >= fftSize) {
-			int numProcessed = 0;
+			size_t numProcessed = 0;
 
 			if (lineRateAccum + (lineRateStep * ((double)bufferedItems/(double)fftSize)) < 1.0) {
 				// move along, nothing to see here..
 				lineRateAccum += (lineRateStep * ((double)bufferedItems/(double)fftSize));
 				numProcessed = bufferedItems;
 			} else {
-				for (unsigned int i = 0, iMax = bufferedItems; i < iMax; i += fftSize) {
+				for (size_t i = 0, iMax = bufferedItems; i < iMax; i += fftSize) {
 					if ((i + fftSize) > iMax) {
 						break;
 					}

src/process/FFTDataDistributor.h

@@ -23,5 +23,7 @@ protected:
     unsigned int fftSize;
     unsigned int linesPerSecond;
     double lineRateAccum;
-    size_t bufferMax, bufferOffset, bufferedItems;
+    size_t bufferMax = 0;
+    size_t bufferOffset = 0;
+    size_t bufferedItems = 0;
 };

src/process/ScopeVisualProcessor.h

@@ -10,7 +10,7 @@
 class ScopeRenderData: public ReferenceCounter {
 public:
 	std::vector<float> waveform_points;
-    ScopePanel::ScopeMode mode;
+    ScopePanel::ScopeMode mode = ScopePanel::SCOPE_MODE_Y;
     int inputRate;
     int sampleRate;
 	int channels;
@@ -39,7 +39,7 @@ protected:
     std::vector<liquid_float_complex> fftOutput;
     fftplan fftPlan;
     
-    unsigned int fftSize;
+    unsigned int fftSize = 0;
     int desiredInputSize;
     unsigned int maxScopeSamples;
     

src/process/SpectrumVisualProcessor.cpp

@@ -29,6 +29,7 @@ SpectrumVisualProcessor::SpectrumVisualProcessor() : outputBuffers("SpectrumVisu
     
     fft_ceil_ma = fft_ceil_maa = 100.0;
     fft_floor_ma = fft_floor_maa = 0.0;
+    fft_floor_peak = 0.0;
     desiredInputSize.store(0);
     fft_average_rate = 0.65f;
     scaleFactor.store(1.0);

src/process/VisualProcessor.h

@@ -87,7 +87,7 @@ protected:
         // distribute outputs
         std::lock_guard < std::recursive_mutex > busy_lock(busy_update);
 
-        output->setRefCount(outputs.size());
+        output->setRefCount((int)outputs.size());
         for (outputs_i = outputs.begin(); outputs_i != outputs.end(); outputs_i++) {
 
         	if (!(*outputs_i)->push(output)) {
@@ -96,7 +96,7 @@ protected:
         }
     }
 
-    ThreadQueue<InputDataType *> *input;
+    ThreadQueue<InputDataType *> *input = nullptr;
     std::vector<ThreadQueue<OutputDataType *> *> outputs;
 	typename std::vector<ThreadQueue<OutputDataType *> *>::iterator outputs_i;