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/*
* Copyright (c) 2003-2004, Mark Borgerding. All rights reserved.
* This file is part of KISS FFT - https://github.com/mborgerding/kissfft
*
* SPDX-License-Identifier: BSD-3-Clause
* See COPYING file for more information.
*/
#ifndef KISS_NDR_H
#define KISS_NDR_H
#include "kiss_fft.h"
#include "kiss_fftr.h"
#include "kiss_fftnd.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef struct kiss_fftndr_state *kiss_fftndr_cfg;
kiss_fftndr_cfg kiss_fftndr_alloc(const int *dims,int ndims,int inverse_fft,void*mem,size_t*lenmem);
/*
dims[0] must be even
If you don't care to allocate space, use mem = lenmem = NULL
*/
void kiss_fftndr(
kiss_fftndr_cfg cfg,
const kiss_fft_scalar *timedata,
kiss_fft_cpx *freqdata);
/*
input timedata has dims[0] X dims[1] X ... X dims[ndims-1] scalar points
output freqdata has dims[0] X dims[1] X ... X dims[ndims-1]/2+1 complex points
*/
void kiss_fftndri(
kiss_fftndr_cfg cfg,
const kiss_fft_cpx *freqdata,
kiss_fft_scalar *timedata);
/*
input and output dimensions are the exact opposite of kiss_fftndr
*/
#define kiss_fftndr_free free
#ifdef __cplusplus
}
#endif
#endif
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