constant-q-cpp: src/ext/kissfft/tools/kiss

Update plugin versions in RDF

author	Chris Cannam <cannam@all-day-breakfast.com>
date	Fri, 28 Feb 2020 09:43:02 +0000
parents	5ed6e970541b
children

rev	line source
c@174	1 #ifndef KISS_FTR_H
c@174	2 #define KISS_FTR_H
c@174	3
c@174	4 #include "kiss_fft.h"
c@174	5 #ifdef __cplusplus
c@174	6 extern "C" {
c@174	7 #endif
c@174	8
c@174	9
c@174	10 /*
c@174	11
c@174	12 Real optimized version can save about 45% cpu time vs. complex fft of a real seq.
c@174	13
c@174	14
c@174	15
c@174	16 */
c@174	17
c@174	18 typedef struct kiss_fftr_state *kiss_fftr_cfg;
c@174	19
c@174	20
c@174	21 kiss_fftr_cfg kiss_fftr_alloc(int nfft,int inverse_fft,void * mem, size_t * lenmem);
c@174	22 /*
c@174	23 nfft must be even
c@174	24
c@174	25 If you don't care to allocate space, use mem = lenmem = NULL
c@174	26 */
c@174	27
c@174	28
c@174	29 void kiss_fftr(kiss_fftr_cfg cfg,const kiss_fft_scalar timedata,kiss_fft_cpx freqdata);
c@174	30 /*
c@174	31 input timedata has nfft scalar points
c@174	32 output freqdata has nfft/2+1 complex points
c@174	33 */
c@174	34
c@174	35 void kiss_fftri(kiss_fftr_cfg cfg,const kiss_fft_cpx freqdata,kiss_fft_scalar timedata);
c@174	36 /*
c@174	37 input freqdata has nfft/2+1 complex points
c@174	38 output timedata has nfft scalar points
c@174	39 */
c@174	40
c@174	41 #define kiss_fftr_free free
c@174	42
c@174	43 #ifdef __cplusplus
c@174	44 }
c@174	45 #endif
c@174	46 #endif

Mercurial > hg > constant-q-cpp