ref: 437fa65d085d43c60cc57511c6ae9712a901e2d9
dir: /src/filter.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. */ #ifndef FILTER_H #define FILTER_H /** \file * filter * * \f$ y[n] = b_1 x[n] + ... + b_{order} x[n-order] - * a_2 y[n-1] - ... - a_{order} y[n-order]\f$ */ #ifdef __cplusplus extern "C" { #endif typedef struct _aubio_filter_t aubio_filter_t; void aubio_filter_do(aubio_filter_t * b, fvec_t * in); void aubio_filter_do_outplace(aubio_filter_t * b, fvec_t * in, fvec_t * out); void aubio_filter_do_filtfilt(aubio_filter_t * b, fvec_t * in, fvec_t * tmp); aubio_filter_t * new_aubio_filter(uint_t samplerate, uint_t order); aubio_filter_t * new_aubio_adsgn_filter(uint_t samplerate); aubio_filter_t * new_aubio_cdsgn_filter(uint_t samplerate); #ifdef __cplusplus } #endif #endif /*FILTER_H*/