new MovingAverage class

Author: pschatzmann

src/AudioTools/CoreAudio/AudioBasic/MovingAverage.h

@@ -0,0 +1,42 @@
+
+#include "Collections/List.h"
+
+namespace audio_tools {
+
+/**
+ * @brief Caclulates the moving average of a number of values
+ * @ingroup basic
+ * @author Phil Schatzmann
+ * @copyright GPLv3
+ */
+
+template <class N>
+class MovingAverage {
+ public:
+  MovingAverage(int size) {
+    this->size = size;
+    this->values = List<float>();
+    this->values.reserve(size);
+  }
+
+  void add(float value) {
+    if (this->values.size() == this->size) {
+      this->values.pop_front();
+    }
+    this->values.push_back(value);
+  }
+
+  float average() {
+    float sum = 0;
+    for (int i = 0; i < this->values.size(); i++) {
+      sum += this->values[i];
+    }
+    return sum / this->values.size();
+  }
+
+ protected:
+  List<N> values;
+  int size;
+};
+
+}  // namespace audio_tools