/****************************************************************************

Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.

This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
be copied by any method or incorporated into another program without
the express written consent of Aerospace C.Power. This Information or any portion
thereof remains the property of Aerospace C.Power. The Information contained herein
is believed to be accurate and Aerospace C.Power assumes no responsibility or
liability for its use in any way and conveys no license or title under
any patent or copyright and makes no representation or warranty that this
Information is free from patent or copyright infringement.

****************************************************************************/

#ifndef __FFT_H__
#define __FFT_H__

typedef struct complex
{
    float real;
    float imag;
}complex;

#define PI 3.1415926535897932384626433832795028841971

void conjugate_complex(int n,complex in[],complex out[]);
void c_plus(complex a,complex b,complex *c);
void c_mul(complex a,complex b,complex *c);
void c_sub(complex a,complex b,complex *c);
void c_div(complex a,complex b,complex *c);
void fft(int N,complex f[]);
void ifft(int N,complex f[]);
void c_abs(complex f[],float out[],int n);
#endif