diff --git a/README.chromium b/README.chromium index 3fdee104b..bc3b69b5c 100644 --- a/README.chromium +++ b/README.chromium @@ -1,6 +1,6 @@ Name: libyuv URL: http://code.google.com/p/libyuv/ -Version: 1620 +Version: 1621 License: BSD License File: LICENSE diff --git a/include/libyuv/version.h b/include/libyuv/version.h index bbc3e0dfb..1f50abf40 100644 --- a/include/libyuv/version.h +++ b/include/libyuv/version.h @@ -11,6 +11,6 @@ #ifndef INCLUDE_LIBYUV_VERSION_H_ #define INCLUDE_LIBYUV_VERSION_H_ -#define LIBYUV_VERSION 1620 +#define LIBYUV_VERSION 1621 #endif // INCLUDE_LIBYUV_VERSION_H_ diff --git a/source/row_common.cc b/source/row_common.cc index aefa38c49..099ab600d 100644 --- a/source/row_common.cc +++ b/source/row_common.cc @@ -1143,20 +1143,21 @@ const struct YuvConstants SIMD_ALIGNED(kYvuJPEGConstants) = { #undef YG // BT.709 YUV to RGB reference -// * R = Y - V * -1.28033 -// * G = Y - U * 0.21482 - V * 0.38059 -// * B = Y - U * -2.12798 +// R = (Y - 16) * 1.164 - V * -1.793 +// G = (Y - 16) * 1.164 - U * 0.213 - V * 0.533 +// B = (Y - 16) * 1.164 - U * -2.112 +// See also http://www.equasys.de/colorconversion.html // Y contribution to R,G,B. Scale and bias. -#define YG 16320 /* round(1.000 * 64 * 256 * 256 / 257) */ -#define YGB 32 /* 64 / 2 */ +#define YG 18997 /* round(1.164 * 64 * 256 * 256 / 257) */ +#define YGB -1160 /* 1.164 * 64 * -16 + 64 / 2 */ -// TODO(fbarchard): Find way to express 2.12 instead of 2.0. +// TODO(fbarchard): Find way to express 2.112 instead of 2.0. // U and V contributions to R,G,B. -#define UB -128 /* max(-128, round(-2.12798 * 64)) */ -#define UG 14 /* round(0.21482 * 64) */ -#define VG 24 /* round(0.38059 * 64) */ -#define VR -82 /* round(-1.28033 * 64) */ +#define UB -128 /* max(-128, round(-2.112 * 64)) */ +#define UG 14 /* round(0.213 * 64) */ +#define VG 34 /* round(0.533 * 64) */ +#define VR -115 /* round(-1.793 * 64) */ // Bias values to round, and subtract 128 from U and V. #define BB (UB * 128 + YGB)