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libavutil: Utility code from libavcodec moved to a separate library.

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Originally committed as revision 4489 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alexander Strasser 2005-08-01 20:07:05 +00:00
parent 0cc64d3d1c
commit c11c2bc20b
20 changed files with 369 additions and 175 deletions
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47
libavutil/integer.h Normal file
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/*
* arbitrary precision integers
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>
*
* This library 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 of the License, or (at your option) any later version.
*
* This library 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
/**
* @file integer.h
* arbitrary precision integers
* @author Michael Niedermayer <michaelni@gmx.at>
*/
#ifndef INTEGER_H
#define INTEGER_H
#define AV_INTEGER_SIZE 8
typedef struct AVInteger{
uint16_t v[AV_INTEGER_SIZE];
} AVInteger;
AVInteger av_add_i(AVInteger a, AVInteger b);
AVInteger av_sub_i(AVInteger a, AVInteger b);
int av_log2_i(AVInteger a);
AVInteger av_mul_i(AVInteger a, AVInteger b);
int av_cmp_i(AVInteger a, AVInteger b);
AVInteger av_shr_i(AVInteger a, int s);
AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b);
AVInteger av_div_i(AVInteger a, AVInteger b);
AVInteger av_int2i(int64_t a);
int64_t av_i2int(AVInteger a);
#endif // INTEGER_H