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lavu: add FF_CEIL_RSHIFT and use it in various places.

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This commit is contained in:
Clément Bœsch
2013-05-07 16:31:02 +02:00
parent d9cb1e0e15
commit 570d63eef3
17 changed files with 45 additions and 41 deletions
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2
libavutil/common.h
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@ -48,6 +48,8 @@
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
/* assume b>0 */
#define ROUNDED_DIV(a,b) (((a)>0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
/* assume a>0 and b>0 */
#define FF_CEIL_RSHIFT(a,b) (-((-(a)) >> (b)))
#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))