From f01028bf58b89a80132bda409167e39779de8835 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 28 Jun 2015 02:27:43 +0200 Subject: [PATCH] avcodec/jpeg2000: Avoid one shift in ff_jpeg2000_ceildivpow2() Signed-off-by: Michael Niedermayer --- libavcodec/jpeg2000.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/jpeg2000.h b/libavcodec/jpeg2000.h index 9bf6186176..a99c210bc8 100644 --- a/libavcodec/jpeg2000.h +++ b/libavcodec/jpeg2000.h @@ -215,7 +215,7 @@ typedef struct Jpeg2000Component { /* misc tools */ static inline int ff_jpeg2000_ceildivpow2(int a, int b) { - return (a + (1 << b) - 1) >> b; + return -((-a) >> b); } static inline int ff_jpeg2000_ceildiv(int a, int b)