avcodec/internal: Add () to argument of FF_SIGNBIT() to ensure correct order or operations

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
10 years ago · 9bb6e1175f
parent 4cd4a6de4f
commit 9bb6e1175f
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@ -35,7 +35,7 @@

 #define FF_SANE_NB_CHANNELS 63U

-#define FF_SIGNBIT(x) (x >> CHAR_BIT * sizeof(x) - 1)
+#define FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1)

 #if HAVE_AVX
 #   define STRIDE_ALIGN 32