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libavutil/integer.h

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00001 /*
00002  * arbitrary precision integers
00003  * Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
00004  *
00005  * This file is part of FFmpeg.
00006  *
00007  * FFmpeg is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or (at your option) any later version.
00011  *
00012  * FFmpeg is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with FFmpeg; if not, write to the Free Software
00019  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
00020  */
00021 
00028 #ifndef AVUTIL_INTEGER_H
00029 #define AVUTIL_INTEGER_H
00030 
00031 #include <stdint.h>
00032 #include "common.h"
00033 
00034 #define AV_INTEGER_SIZE 8
00035 
00036 typedef struct AVInteger{
00037     uint16_t v[AV_INTEGER_SIZE];
00038 } AVInteger;
00039 
00040 AVInteger av_add_i(AVInteger a, AVInteger b) av_const;
00041 AVInteger av_sub_i(AVInteger a, AVInteger b) av_const;
00042 
00048 int av_log2_i(AVInteger a) av_const;
00049 AVInteger av_mul_i(AVInteger a, AVInteger b) av_const;
00050 
00054 int av_cmp_i(AVInteger a, AVInteger b) av_const;
00055 
00061 AVInteger av_shr_i(AVInteger a, int s) av_const;
00062 
00067 AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b);
00068 
00072 AVInteger av_div_i(AVInteger a, AVInteger b) av_const;
00073 
00077 AVInteger av_int2i(int64_t a) av_const;
00078 
00084 int64_t av_i2int(AVInteger a) av_const;
00085 
00086 #endif /* AVUTIL_INTEGER_H */

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