Add partial Rec. 2020 support.

[movit] / ycbcr_input.cpp

diff --git a/ycbcr_input.cpp b/ycbcr_input.cpp
index 4bc519ce7f20068e3b8da5faecd988e5708e693c..d1d849a2038e6a0d58958de61954e6d3edab10a0 100644 (file)
--- a/ycbcr_input.cpp
+++ b/ycbcr_input.cpp
@@ -202,6 +202,14 @@ std::string YCbCrInput::output_fragment_shader()
                coeff[1] = 0.7152;
                coeff[2] = 0.0722;
                break;
+
+       case YCBCR_REC_2020:
+               // Rec. 2020, page 4.
+               coeff[0] = 0.2627;
+               coeff[1] = 0.6780;
+               coeff[2] = 0.0593;
+               break;
+
        default:
                assert(false);
        }
@@ -215,7 +223,7 @@ std::string YCbCrInput::output_fragment_shader()
                scale[1] = 1.0;
                scale[2] = 1.0;
        } else {
-               // Rec. 601, page 4; Rec. 709, page 19.
+               // Rec. 601, page 4; Rec. 709, page 19; Rec. 2020, page 4.
                offset[0] = 16.0 / 255.0;
                offset[1] = 128.0 / 255.0;
                offset[2] = 128.0 / 255.0;