expect_equal(expected_data, out_data, 4 * width, height, 0.025, 0.002);
}
+TEST(YCbCrInputTest, Interleaved444) {
+ const int width = 1;
+ const int height = 5;
+
+ // Same data as Simple444, just rearranged.
+ unsigned char data[width * height * 3] = {
+ 16, 128, 128,
+ 235, 128, 128,
+ 81, 90, 240,
+ 145, 54, 34,
+ 41, 240, 110,
+ };
+ float expected_data[4 * width * height] = {
+ 0.0, 0.0, 0.0, 1.0,
+ 1.0, 1.0, 1.0, 1.0,
+ 1.0, 0.0, 0.0, 1.0,
+ 0.0, 1.0, 0.0, 1.0,
+ 0.0, 0.0, 1.0, 1.0,
+ };
+ 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, YCBCR_INPUT_INTERLEAVED);
+ input->set_pixel_data(0, data);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // Y'CbCr isn't 100% accurate (the input values are rounded),
+ // so we need some leeway.
+ expect_equal(expected_data, out_data, 4 * width, height, 0.025, 0.002);
+}
+
TEST(YCbCrInputTest, FullRangeRec601) {
const int width = 1;
const int height = 5;
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;
// Don't care what the output was, just that it does not crash.
}
+TEST(YCbCrInputTest, TenBitInterleaved) {
+ const int width = 1;
+ const int height = 5;
+
+ // Pure-color inputs, calculated using formulas 3.2, 3.3 and 3.4 from
+ // Rec. 709. (Except the first two, which are obvious given the 64–940
+ // range of luminance.)
+ unsigned expanded_data[width * height * 3] = {
+ 64, 512, 512,
+ 940, 512, 512,
+ 250, 409, 960,
+ 691, 167, 105,
+ 127, 960, 471,
+ };
+ float expected_data[4 * width * height] = {
+ 0.0, 0.0, 0.0, 1.0,
+ 1.0, 1.0, 1.0, 1.0,
+ 1.0, 0.0, 0.0, 1.0,
+ 0.0, 1.0, 0.0, 1.0,
+ 0.0, 0.0, 1.0, 1.0,
+ };
+ float out_data[4 * width * height];
+
+ // Pack 32:32:32 to 10:10:10:2.
+ uint32_t data[width * height];
+ for (unsigned i = 0; i < width * height; ++i) {
+ data[i] =
+ expanded_data[i * 3 + 0] |
+ (expanded_data[i * 3 + 1] << 10) |
+ (expanded_data[i * 3 + 2] << 20);
+ }
+
+ 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_709;
+ ycbcr_format.full_range = false;
+ ycbcr_format.num_levels = 1024; // 10-bit.
+ 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, YCBCR_INPUT_INTERLEAVED, GL_UNSIGNED_INT_2_10_10_10_REV);
+ input->set_pixel_data(0, data);
+ tester.get_chain()->add_input(input);
+
+ tester.run(out_data, GL_RGBA, COLORSPACE_sRGB, GAMMA_sRGB);
+
+ // We can set much tighter limits on this than 8-bit Y'CbCr;
+ // even tighter than the default limits.
+ expect_equal(expected_data, out_data, 4 * width, height, 0.002, 0.0003);
+}
+
} // namespace movit