libavcodec/eval.h

Go to the documentation of this file.

/*
 * Copyright (c) 2002 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 AVCODEC_EVAL_H
#define AVCODEC_EVAL_H

typedef struct AVExpr AVExpr;

double ff_parse_and_eval_expr(const char *s, const double *const_value, const char * const *const_name,
               double (* const *func1)(void *, double), const char * const *func1_name,
               double (* const *func2)(void *, double, double), const char * const *func2_name,
               void *opaque, const char **error);

AVExpr *ff_parse_expr(const char *s, const char * const *const_name,
               double (* const *func1)(void *, double), const char * const *func1_name,
               double (* const *func2)(void *, double, double), const char * const *func2_name,
               const char **error);

double ff_eval_expr(AVExpr * e, const double *const_value, void *opaque);

void ff_free_expr(AVExpr *e);

double av_strtod(const char *numstr, char **tail);

#endif /* AVCODEC_EVAL_H */

---