windowing.h

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#pragma once
 
#include <iostream>
#include <stdexcept>
#include <cassert>
#include <vector>
 
#ifndef M_PI
#define M_PI 3.14159265358979323846f
#endif
namespace krotos
{
    class Windowing
    {
      public:
        Windowing();
        ~Windowing();
 
        void configure(int size, const std::string& type, int zeroPadding, bool normalized, bool zeroPhase);
        void compute(const std::vector<float>& signal, std::vector<float>& windowedSignal);
 
        std::vector<double> m_window;
        void normalize_cola(int frame_shift);
 
      protected:
        void createWindow(const std::string& windowtype);
        void hamming();
        void hanning();
        void normalize();
 
        bool m_normalized;
        std::string m_type;
    };
} // namespace krotos