TESTS += white_balance_effect_test
TESTS += lift_gamma_gain_effect_test
TESTS += flat_input_test
+TESTS += ycbcr_input_test
# Core.
LIB_OBJS=util.o widgets.o effect.o effect_chain.o
$(CXX) -o $@ $^ $(LDFLAGS)
flat_input_test: flat_input_test.o $(TEST_OBJS) libmovit.a
$(CXX) -o $@ $^ $(LDFLAGS)
+ycbcr_input_test: ycbcr_input_test.o $(TEST_OBJS) libmovit.a
+ $(CXX) -o $@ $^ $(LDFLAGS)
OBJS=$(DEMO_OBJS) $(LIB_OBJS) $(TEST_OBJS) $(TESTS:=.o)
--- /dev/null
+// Unit tests for YCbCrInput.
+// FIXME: This class really ought to support mipmaps.
+
+#include "test_util.h"
+#include "gtest/gtest.h"
+#include "ycbcr_input.h"
+
+TEST(YCbCrInput, Simple444) {
+ const int width = 1;
+ const int height = 5;
+
+ // Pure-color test inputs, calculated with the formulas in Rec. 601
+ // section 2.5.4.
+ unsigned char y[width * height] = {
+ 16, 235, 81, 145, 41,
+ };
+ unsigned char cb[width * height] = {
+ 128, 128, 90, 54, 240,
+ };
+ unsigned char cr[width * height] = {
+ 128, 128, 240, 34, 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.chroma_subsampling_x = 1;
+ ycbcr_format.chroma_subsampling_y = 1;
+ ycbcr_format.chroma_x_position = 0.5f;
+ ycbcr_format.chroma_y_position = 0.5f;
+
+ YCbCrInput *input = new YCbCrInput(format, ycbcr_format, width, height);
+ input->set_pixel_data(0, y);
+ input->set_pixel_data(1, cb);
+ input->set_pixel_data(2, cr);
+ 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);
+}