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50 lines
1.9 KiB
50 lines
1.9 KiB
/* |
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* simple arithmetic expression evaluator |
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* |
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* Copyright (c) 2002 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file eval.h |
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* eval header. |
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*/ |
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#ifndef AVCODEC_EVAL_H |
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#define AVCODEC_EVAL_H |
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#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0) |
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double ff_eval(char *s, double *const_value, const char **const_name, |
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double (**func1)(void *, double), const char **func1_name, |
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double (**func2)(void *, double, double), char **func2_name, |
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void *opaque); |
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#endif |
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double ff_eval2(char *s, double *const_value, const char **const_name, |
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double (**func1)(void *, double), const char **func1_name, |
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double (**func2)(void *, double, double), char **func2_name, |
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void *opaque, char **error); |
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typedef struct ff_expr_s AVEvalExpr; |
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AVEvalExpr * ff_parse(char *s, const char **const_name, |
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double (**func1)(void *, double), const char **func1_name, |
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double (**func2)(void *, double, double), char **func2_name, |
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char **error); |
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double ff_parse_eval(AVEvalExpr * e, double *const_value, void *opaque); |
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void ff_eval_free(AVEvalExpr * e); |
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#endif /* AVCODEC_EVAL_H */
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