/* * linear least squares model * * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */#ifndef FFMPEG_LLS_H#define FFMPEG_LLS_H#define MAX_VARS 32//FIXME avoid direct access to LLSModel from outside/** * Linear least squares model. */typedef struct LLSModel{    double covariance[MAX_VARS+1][MAX_VARS+1];    double coeff[MAX_VARS][MAX_VARS];    double variance[MAX_VARS];    int indep_count;}LLSModel;void av_init_lls(LLSModel *m, int indep_count);void av_update_lls(LLSModel *m, double *param, double decay);void av_solve_lls(LLSModel *m, double threshold, int min_order);double av_evaluate_lls(LLSModel *m, double *param, int order);#endif /* FFMPEG_LLS_H */