17typedef struct kiss_fftr_state *kiss_fftr_cfg;
20kiss_fftr_cfg PCL_EXPORTS kiss_fftr_alloc(
int nfft,
int inverse_fft,
void * mem,
size_t * lenmem);
28void PCL_EXPORTS kiss_fftr(kiss_fftr_cfg cfg,
const kiss_fft_scalar *timedata,
kiss_fft_cpx *freqdata);
34void PCL_EXPORTS kiss_fftri(kiss_fftr_cfg cfg,
const kiss_fft_cpx *freqdata,kiss_fft_scalar *timedata);
40#define kiss_fftr_free free