www.pudn.com > ffmpeg_c.rar > integer.h

/* 
 * arbitrary precision integers 
 * Copyright (c) 2004 Michael Niedermayer  
 * 
 * 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 
 * 
 */ 
 
/** 
 * @file integer.h 
 * arbitrary precision integers 
 * @author Michael Niedermayer  
 */ 
 
#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