ffmpeg / libavcodec / integer.h @ 20646267
History  View  Annotate  Download (1.49 KB)
1 
/*


2 
* arbitrary precision integers

3 
* Copyright (c) 2004 Michael Niedermayer <michaelni@gmx.at>

4 
*

5 
* This library is free software; you can redistribute it and/or

6 
* modify it under the terms of the GNU Lesser General Public

7 
* License as published by the Free Software Foundation; either

8 
* version 2 of the License, or (at your option) any later version.

9 
*

10 
* This library is distributed in the hope that it will be useful,

11 
* but WITHOUT ANY WARRANTY; without even the implied warranty of

12 
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

13 
* Lesser General Public License for more details.

14 
*

15 
* You should have received a copy of the GNU Lesser General Public

16 
* License along with this library; if not, write to the Free Software

17 
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 021111307 USA

18 
*

19 
*/

20 

21 
/**

22 
* @file integer.h

23 
* arbitrary precision integers

24 
* @author Michael Niedermayer <michaelni@gmx.at>

25 
*/

26 

27 
#ifndef INTEGER_H

28 
#define INTEGER_H

29  
30 
#define AV_INTEGER_SIZE 8 
31  
32 
typedef struct AVInteger{ 
33 
uint16_t v[AV_INTEGER_SIZE]; 
34 
} AVInteger; 
35  
36 
AVInteger av_add_i(AVInteger a, AVInteger b); 
37 
AVInteger av_sub_i(AVInteger a, AVInteger b); 
38 
int av_log2_i(AVInteger a);

39 
AVInteger av_mul_i(AVInteger a, AVInteger b); 
40 
int av_cmp_i(AVInteger a, AVInteger b);

41 
AVInteger av_shr_i(AVInteger a, int s);

42 
AVInteger av_mod_i(AVInteger *quot, AVInteger a, AVInteger b); 
43 
AVInteger av_div_i(AVInteger a, AVInteger b); 
44 
AVInteger av_int2i(int64_t a); 
45 
int64_t av_i2int(AVInteger a); 
46  
47 
#endif // INTEGER_H 