Merge commit 'aa8b39d999589154f79300de9038994d0093cd34'

[ffmpeg] / libavcodec / internal.h

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index dcb2113f6fed81d63f9acee3340aac3c79618ed2..f4e12e80847975ec96a714fc91893c8f69abc4a2 100644 (file)
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -35,6 +35,8 @@
 
 #define FF_SANE_NB_CHANNELS 63U
 
+#define FF_SIGNBIT(x) ((x) >> CHAR_BIT * sizeof(x) - 1)
+
 #if HAVE_AVX
 #   define STRIDE_ALIGN 32
 #elif HAVE_SIMD_ALIGN_16