Libav
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00001 /* 00002 * Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00026 #ifndef AVCODEC_EVAL_H 00027 #define AVCODEC_EVAL_H 00028 00029 typedef struct AVExpr AVExpr; 00030 00046 double ff_parse_and_eval_expr(const char *s, const double *const_value, const char * const *const_name, 00047 double (* const *func1)(void *, double), const char * const *func1_name, 00048 double (* const *func2)(void *, double, double), const char * const *func2_name, 00049 void *opaque, const char **error); 00050 00064 AVExpr *ff_parse_expr(const char *s, const char * const *const_name, 00065 double (* const *func1)(void *, double), const char * const *func1_name, 00066 double (* const *func2)(void *, double, double), const char * const *func2_name, 00067 const char **error); 00068 00076 double ff_eval_expr(AVExpr * e, const double *const_value, void *opaque); 00077 00081 void ff_free_expr(AVExpr *e); 00082 00100 double av_strtod(const char *numstr, char **tail); 00101 00102 #endif /* AVCODEC_EVAL_H */