Upstream version 9.38.198.0

[platform/framework/web/crosswalk.git] / src / third_party / libyuv / util / ssim.h

diff --git a/src/third_party/libyuv/util/ssim.h b/src/third_party/libyuv/util/ssim.h
index 40120b4..430eb71 100644 (file)
--- 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