ref: 5140276e1926e5cbbbbb8ffdc2dd923c5a7a94dc
dir: /src/fft.h/
/* Copyright (C) 2003 Paul Brossier This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /** @file * Fft object (fftw3f) * */ #ifndef FFT_H_ #define FFT_H_ /* <complex.h> is not included here but only in aubio_priv.h, so that c++ * projects can still use their own complex definition. */ #include <fftw3.h> #if FFTW3F_SUPPORT #define FFTW_TYPE fftwf_complex #else #define FFTW_TYPE fftw_complex #endif #ifdef __cplusplus extern "C" { #endif typedef FFTW_TYPE fft_data_t; typedef struct _aubio_fft_t aubio_fft_t; /* fftw funcs */ extern aubio_fft_t * new_aubio_fft(uint_t size); extern void del_aubio_fft(aubio_fft_t * s); extern void aubio_fft_do (const aubio_fft_t *s, const smpl_t * data, fft_data_t * spectrum, const uint_t size); extern void aubio_fft_rdo(const aubio_fft_t *s, const fft_data_t * spectrum, smpl_t * data, const uint_t size); /** get norm from spectrum */ void aubio_fft_getnorm(smpl_t * norm, fft_data_t * spectrum, uint_t size); /** get phase from spectrum */ void aubio_fft_getphas(smpl_t * phase, fft_data_t * spectrum, uint_t size); typedef struct _aubio_mfft_t aubio_mfft_t; aubio_mfft_t * new_aubio_mfft(uint_t winsize, uint_t channels); void aubio_mfft_do (aubio_mfft_t * fft,fvec_t * in,cvec_t * fftgrain); void aubio_mfft_rdo(aubio_mfft_t * fft,cvec_t * fftgrain, fvec_t * out); void del_aubio_mfft(aubio_mfft_t * fft); #ifdef __cplusplus } #endif #endif