1 #ifndef KISS_NDR_H
2 #define KISS_NDR_H
3 
4 #include "kiss_fft.h"
5 #include "kiss_fftr.h"
6 #include "kiss_fftnd.h"
7 
8 #ifdef __cplusplus
9 extern "C" {
10 #endif
11 
12 typedef struct kiss_fftndr_state *kiss_fftndr_cfg;
13 
14 
15 kiss_fftndr_cfg  kiss_fftndr_alloc(const int *dims,int ndims,int inverse_fft,void*mem,size_t*lenmem);
16 /*
17  dims[0] must be even
18 
19  If you don't care to allocate space, use mem = lenmem = NULL
20 */
21 
22 
23 void kiss_fftndr(
24         kiss_fftndr_cfg cfg,
25         const kiss_fft_scalar *timedata,
26         kiss_fft_cpx *freqdata);
27 /*
28  input timedata has dims[0] X dims[1] X ... X  dims[ndims-1] scalar points
29  output freqdata has dims[0] X dims[1] X ... X  dims[ndims-1]/2+1 complex points
30 */
31 
32 void kiss_fftndri(
33         kiss_fftndr_cfg cfg,
34         const kiss_fft_cpx *freqdata,
35         kiss_fft_scalar *timedata);
36 /*
37  input and output dimensions are the exact opposite of kiss_fftndr
38 */
39 
40 
41 #define kiss_fftr_free free
42 
43 #ifdef __cplusplus
44 }
45 #endif
46 
47 #endif
48