EXPECT_NEAR(128.0, offset[2] * 255.0, 1e-3);
}
+TEST(YCbCrTest, BlackmagicForwardMatrix) {
+ YCbCrFormat ycbcr_format;
+ ycbcr_format.luma_coefficients = YCBCR_REC_709;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 256;
+
+ float offset[3];
+ Eigen::Matrix3d ycbcr_to_rgb;
+ compute_ycbcr_matrix(ycbcr_format, offset, &ycbcr_to_rgb);
+
+ Eigen::Matrix3d rgb_to_ycbcr = ycbcr_to_rgb.inverse();
+
+ // Values from DeckLink SDK documentation.
+ EXPECT_NEAR( 0.183, rgb_to_ycbcr(0,0), 1e-3);
+ EXPECT_NEAR( 0.614, rgb_to_ycbcr(0,1), 1e-3);
+ EXPECT_NEAR( 0.062, rgb_to_ycbcr(0,2), 1e-3);
+
+ EXPECT_NEAR(-0.101, rgb_to_ycbcr(1,0), 1e-3);
+ EXPECT_NEAR(-0.338, rgb_to_ycbcr(1,1), 1e-3);
+ EXPECT_NEAR( 0.439, rgb_to_ycbcr(1,2), 1e-3);
+
+ EXPECT_NEAR( 0.439, rgb_to_ycbcr(2,0), 1e-3);
+ EXPECT_NEAR(-0.399, rgb_to_ycbcr(2,1), 1e-3);
+ EXPECT_NEAR(-0.040, rgb_to_ycbcr(2,2), 1e-3);
+
+ EXPECT_NEAR( 16.0, offset[0] * 255.0, 1e-3);
+ EXPECT_NEAR(128.0, offset[1] * 255.0, 1e-3);
+ EXPECT_NEAR(128.0, offset[2] * 255.0, 1e-3);
+}
+
+TEST(YCbCrInputTest, NoData) {
+ const int width = 1;
+ const int height = 5;
+
+ float out_data[4 * width * height];
+
+ EffectChainTester tester(NULL, width, height);
+
+ ImageFormat format;
+ format.color_space = COLORSPACE_sRGB;
+ format.gamma_curve = GAMMA_sRGB;
+
+ YCbCrFormat ycbcr_format;
+ ycbcr_format.luma_coefficients = YCBCR_REC_601;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 256;
+ ycbcr_format.chroma_subsampling_x = 1;
+ ycbcr_format.chroma_subsampling_y = 1;
+ ycbcr_format.cb_x_position = 0.5f;
+ ycbcr_format.cb_y_position = 0.5f;
+ ycbcr_format.cr_x_position = 0.5f;
+ ycbcr_format.cr_y_position = 0.5f;
+
+ YCbCrInput *input = new YCbCrInput(format, ycbcr_format, width, height);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // Don't care what the output was, just that it does not crash.
+}
+
} // namespace movit