X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=src%2Fthird_party%2Flibyuv%2Futil%2Fssim.h;h=430eb71c3d076ba0b4ec77482eef66deb1d45925;hb=4a1a0bdd01eef90b0826a0e761d3379d3715c10f;hp=40120b4f4e7c8bebe0af9961f03056245462507f;hpb=b1be5ca53587d23e7aeb77b26861fdc0a181ffd8;p=platform%2Fframework%2Fweb%2Fcrosswalk.git

diff --git a/src/third_party/libyuv/util/ssim.h b/src/third_party/libyuv/util/ssim.h
index 40120b4..430eb71 100644
--- a/src/third_party/libyuv/util/ssim.h
+++ b/src/third_party/libyuv/util/ssim.h
@@ -13,6 +13,8 @@
 #ifndef UTIL_SSIM_H_  // NOLINT
 #define UTIL_SSIM_H_
 
+#include <math.h>  // For log10()
+
 #ifdef __cplusplus
 extern "C" {
 #endif
@@ -25,7 +27,6 @@ typedef unsigned char uint8;
 double CalcSSIM(const uint8* org, const uint8* rec,
                 const int image_width, const int image_height);
 
-// does -10.0 * log10(1.0 - ssim)
 double CalcLSSIM(double ssim);
 
 #ifdef __cplusplus