fft.h

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#ifndef FFT_H
#define FFT_H

#include <complex>
#include <fftw3.h>
#include <vector>

namespace fun
{
    class fft
    {
    public:


        fft(int fft_length);

        void forward(std::complex<double> data[64]);

        void inverse(std::vector<std::complex<double> > & data);

    private:

        static const int fft_map[64];

        int m_fft_length;        

        fftw_complex * m_fftw_in_forward;

        fftw_complex * m_fftw_out_forward;

        fftw_complex * m_fftw_in_inverse;

        fftw_complex * m_fftw_out_inverse;

        fftw_plan m_fftw_plan_forward;

        fftw_plan m_fftw_plan_inverse;
    };
}


#endif // FFT_H