2 Copyright (C) 2003 Paul Brossier
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 /* <complex.h> is not included here but only in aubio_priv.h, so that c++
28 * projects can still use their own complex definition. */
32 #define FFTW_TYPE fftwf_complex
34 #define FFTW_TYPE fftw_complex
41 typedef FFTW_TYPE fft_data_t;
43 typedef struct _aubio_fft_t aubio_fft_t;
46 extern aubio_fft_t * new_aubio_fft(uint_t size);
47 extern void del_aubio_fft(aubio_fft_t * s);
48 extern void aubio_fft_do (const aubio_fft_t *s, const smpl_t * data,
49 fft_data_t * spectrum, const uint_t size);
50 extern void aubio_fft_rdo(const aubio_fft_t *s, const fft_data_t * spectrum,
51 smpl_t * data, const uint_t size);
52 /** get norm from spectrum */
53 void aubio_fft_getnorm(smpl_t * norm, fft_data_t * spectrum, uint_t size);
54 /** get phase from spectrum */
55 void aubio_fft_getphas(smpl_t * phase, fft_data_t * spectrum, uint_t size);
58 typedef struct _aubio_mfft_t aubio_mfft_t;
59 aubio_mfft_t * new_aubio_mfft(uint_t winsize, uint_t channels);
60 void aubio_mfft_do (aubio_mfft_t * fft,fvec_t * in,cvec_t * fftgrain);
61 void aubio_mfft_rdo(aubio_mfft_t * fft,cvec_t * fftgrain, fvec_t * out);
62 void del_aubio_mfft(aubio_mfft_t * fft);