Merge commit '85dc006b1a829726dd5e3a9b0fcc6a1dbfe6dffa'

[ffmpeg] / libavcodec / internal.h

diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index dcb2113f6fed81d63f9acee3340aac3c79618ed2..b8ceb2e9f1920883430a9675e375cafc739e54a4 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