diff options
Diffstat (limited to 'libavutil/common.h')
| -rw-r--r-- | libavutil/common.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavutil/common.h b/libavutil/common.h index 9091070a01..c7c32fd363 100644 --- a/libavutil/common.h +++ b/libavutil/common.h @@ -49,7 +49,8 @@ /* 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 FF_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \ + : ((a) + (1<<(b)) - 1) >> (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))) |