Add FFMPEG_ prefix to all multiple inclusion guards.
[libav.git] / libavutil / lls.h
1 /*
2 * linear least squares model
3 *
4 * Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #ifndef FFMPEG_LLS_H
24 #define FFMPEG_LLS_H
25
26 #define MAX_VARS 32
27
28 //FIXME avoid direct access to LLSModel from outside
29
30 /**
31 * Linear least squares model.
32 */
33 typedef struct LLSModel{
34 double covariance[MAX_VARS+1][MAX_VARS+1];
35 double coeff[MAX_VARS][MAX_VARS];
36 double variance[MAX_VARS];
37 int indep_count;
38 }LLSModel;
39
40 void av_init_lls(LLSModel *m, int indep_count);
41 void av_update_lls(LLSModel *m, double *param, double decay);
42 void av_solve_lls(LLSModel *m, double threshold, int min_order);
43 double av_evaluate_lls(LLSModel *m, double *param, int order);
44
45 #endif /* FFMPEG_LLS_H */