/*  Copyright (C) 2003-2013 Paul Brossier <piem@aubio.org>   This file is part of aubio.   aubio 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 3 of the License, or  (at your option) any later version.   aubio 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 aubio.  If not, see <http://www.gnu.org/licenses/>. */ /** \file  Vector scaling function  This object, inspired from the scale object in FTS, the jMax engine, scales the values of a vector according to an affine function defined as follow:  \f$ y = (x - ilow)*(ohig-olow)/(ihig-ilow) + olow \f$ */#ifndef AUBIO_SCALE_H#define AUBIO_SCALE_H #ifdef __cplusplusextern "C" {#endif /** scale object */typedef struct _aubio_scale_t aubio_scale_t;#pragma incomplete aubio_scale_t /** create a scale object   \param flow lower value of output function  \param fhig higher value of output function  \param ilow lower value of input function  \param ihig higher value of output function */aubio_scale_t * new_aubio_scale(smpl_t flow, smpl_t fhig,    smpl_t ilow, smpl_t ihig);/** delete a scale object   \param s scale object as returned by new_aubio_scale */void del_aubio_scale(aubio_scale_t *s);/** scale input vector   \param s scale object as returned by new_aubio_scale  \param input vector to scale */void aubio_scale_do(aubio_scale_t *s, fvec_t * input);/** modify scale parameters after object creation   \param s scale object as returned by new_aubio_scale  \param olow lower value of output function  \param ohig higher value of output function  \param ilow lower value of input function  \param ihig higher value of output function */uint_t aubio_scale_set_limits (aubio_scale_t *s, smpl_t ilow, smpl_t ihig,    smpl_t olow, smpl_t ohig); #ifdef __cplusplus}#endif #endif /* AUBIO_SCALE_H */