00001 /* 00002 * linear least squares model 00003 * 00004 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at> 00005 * 00006 * This file is part of FFmpeg. 00007 * 00008 * FFmpeg is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Lesser General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2.1 of the License, or (at your option) any later version. 00012 * 00013 * FFmpeg is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Lesser General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU Lesser General Public 00019 * License along with FFmpeg; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00021 */ 00022 00023 #ifndef AVUTIL_LLS_H 00024 #define AVUTIL_LLS_H 00025 00026 #define MAX_VARS 32 00027 00028 //FIXME avoid direct access to LLSModel from outside 00029 00033 typedef struct LLSModel{ 00034 double covariance[MAX_VARS+1][MAX_VARS+1]; 00035 double coeff[MAX_VARS][MAX_VARS]; 00036 double variance[MAX_VARS]; 00037 int indep_count; 00038 }LLSModel; 00039 00040 void av_init_lls(LLSModel *m, int indep_count); 00041 void av_update_lls(LLSModel *m, double *param, double decay); 00042 void av_solve_lls(LLSModel *m, double threshold, int min_order); 00043 double av_evaluate_lls(LLSModel *m, double *param, int order); 00044 00045 #endif /* AVUTIL_LLS_H */
1.5.8