hbaseband.h

#ifndef __HBASEBAND_H
#define __HBASEBAND_H
 
#include "hfilter.h"
#include "hreader.h"
#include "hwriter.h"
#include "hwriterconsumer.h"
#include "hprobe.h"
#include "hsoundcard.h"
#include "hfft.h"
 
#include <complex>
 
template <class T>
class HBaseband : public HFilter<T>
{
    private:
 
        int _blocksize;
 
        int _center;
        int _width;
        int _rate;
 
        std::complex<T>* _translated;
        std::complex<double>* _spectrum;
        HFft<T>* _fft;
 
        double* _cos;
        double* _sin;
 
        void Init();
        void PreCalculate();
 
    public:
 
        HBaseband(HWriter<T>* writer, H_SAMPLE_RATE rate, int center, int width, size_t blocksize, HProbe<T>* probe = NULL);
 
        HBaseband(HWriterConsumer<T>* consumer, H_SAMPLE_RATE rate, int center, int width, size_t blocksize, HProbe<T>* probe = NULL);
 
        HBaseband(HReader<T>* reader, H_SAMPLE_RATE rate, int center, int width, size_t blocksize, HProbe<T>* probe = NULL);
 
        ~HBaseband();
 
        virtual void Filter(T* src, T* dest, size_t blocksize);
 
        void SetSegment(int center, int width);
};
 
#endif