#include <iostream>
  #include "wavdata.h"
  #include "fft.h"
  #include <math.h>
  
  
  #define FREQ 22400
  #define AMPLITUDE 10
  #define FREQDO 261
  #define FREQLA	440
  #define SIZE FREQ*4
  
  
  int main(int argc, char **argv)
  {

  //Definition variables
      int i;

  	float pi=3.141592;
  	WavData w;

  	w.load("COW.WAV");
  	char *data = w.data();
  	printf("%d\n",w.datasize());
  	char *data2 = new char[w.datasize()];
  
      double test[w.datasize()*2][2];
  	double test1[w.datasize()*2][2];
  	double test2[w.datasize()*2][2];

  //Creation de la donnée
  	
  	for(i=0;i<w.datasize();i++){

  		test[i][0]=(double)data[i];

  		test[i][1]=0;

      }

  //FFT
  	fft(32768*2,test,test2);
  
  //FFT inverse

  	ifft(32768*2,test1,test2);
  

  //Récupération des données
  	for(i=0;i<w.datasize();i++){

  		//printf("%lf\n",test1[i][0]);
  		//if(test1[i][0]>50)test1[i][0]=50;
  		//if(test1[i][0]<-50)test1[i][0]=-50;

  		data2[i]=test1[i][0];
  	}
  

  //Preapation format final

  	w.setAudioFormat(1);
  	w.setNbrChanel(1);
  	w.setFrequency(FREQ);
  	w.setBytePerBloc(4);
  	w.setBytePerSec(FREQ);
  	w.setBitsPerSample(8);
  	w.clearData();
  	

  	w.setDatasize(w.datasize());

  	w.setData(data2);
  	w.save("cowfft.WAV");
  
  }