lavu/common: fix FF_CEIL_RSHIFT() range comment

9 years ago · 84a967df03
parent f4c1a48483
commit 84a967df03
1 changed files with 1 additions and 1 deletions
--- a/libavutil/common.h
+++ b/libavutil/common.h
@ -54,7 +54,7 @@
 #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 */
+/* assume a>=0 and b>=0 */
 #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))