#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*2


int main(int argc, char **argv)
{
//Definition variables
    int i;
	float pi=3.141592;
	WavData w;
	w.load("COW.WAV");
	char *data = w.data();
    double test[w.datasize()*2][2];
	double test1[w.datasize()*2][2];
	double test2[w.datasize()*2][2];
	double test3[w.datasize()*2][2];
	
	
    printf("===Création data\n");
//Creation de la donnée
	char *data2 = new char[w.datasize()*2];
	printf("===load success\n");

	for(i=0;i<w.datasize();i++){
		test[i][0]=(double)data[i];
		test[i][1]=0;
    }
	
//FFT
	printf("===fft\n");
	fft(32768*2,test,test2);

//Modification dans le domaine fréquentiel
	printf("===modif freq\n");
	for(i=1;i<w.datasize()+1;i++){
		int x=i-1;

		test3[2*x][0]=test2[x][0];
		test3[2*x+1][0]=test2[x][0];
		test3[2*x][1]=0;
        test3[2*x+1][1]=0;
	}
	
//FFT inverse
	printf("===ifft\n");
	ifft(32768*2,test1,test3);

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

}