--- /dev/null
+// Unit tests for DeinterlaceEffect.
+
+#include <epoxy/gl.h>
+
+#include <algorithm>
+
+#include "effect_chain.h"
+#include "gtest/gtest.h"
+#include "image_format.h"
+#include "input.h"
+#include "deinterlace_effect.h"
+#include "test_util.h"
+
+using namespace std;
+
+namespace movit {
+
+TEST(DeinterlaceTest, ConstantColor) {
+ float data[] = {
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ };
+ float expected_data[] = {
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ 0.3f, 0.3f,
+ };
+ float out_data[12];
+ EffectChainTester tester(NULL, 2, 6);
+ Effect *input1 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, 2, 3);
+ Effect *input2 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, 2, 3);
+ Effect *input3 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, 2, 3);
+ Effect *input4 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, 2, 3);
+ Effect *input5 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, 2, 3);
+ Effect *deinterlace_effect = tester.get_chain()->add_effect(new DeinterlaceEffect(), input1, input2, input3, input4, input5);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 0));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
+ expect_equal(expected_data, out_data, 2, 6);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 1));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
+ expect_equal(expected_data, out_data, 2, 6);
+}
+
+// Also tests that top/bottom change works like expected.
+TEST(DeinterlaceTest, VerticalInterpolation) {
+ const int width = 11;
+ const int height = 2;
+ float data[width * height] = {
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Differs from previous.
+ };
+ float expected_data_top[width * height * 2] = {
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Unchanged.
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.3f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Unchanged.
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Repeated.
+ };
+ float expected_data_bottom[width * height * 2] = {
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Repeated
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Unchanged.
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.3f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, // Unchanged.
+ };
+ float neg_blowout_data[width * height];
+ float pos_blowout_data[width * height];
+ float out_data[width * height * 2];
+
+ // Set previous and next fields to something so big that all the temporal checks
+ // are effectively turned off.
+ fill(neg_blowout_data, neg_blowout_data + width * height, -100.0f);
+ fill(neg_blowout_data, pos_blowout_data + width * height, 100.0f);
+
+ EffectChainTester tester(NULL, width, height * 2);
+ Effect *input1 = tester.add_input(neg_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input2 = tester.add_input(neg_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input3 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input4 = tester.add_input(pos_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input5 = tester.add_input(pos_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *deinterlace_effect = tester.get_chain()->add_effect(new DeinterlaceEffect(), input1, input2, input3, input4, input5);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 0));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
+ expect_equal(expected_data_top, out_data, width, height * 2);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 1));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR);
+ expect_equal(expected_data_bottom, out_data, width, height * 2);
+}
+
+TEST(DeinterlaceTest, DiagonalInterpolation) {
+ const int width = 11;
+ const int height = 3;
+ float data[width * height] = {
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, 0.0f, // Offset two pixels, one value modified.
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, // Offset four the other way.
+ };
+
+ // Expected degrees are marked in comments. Mostly we want +45 for the second line
+ // and -63 for the fourth, but due to the score being over three neighboring pixels,
+ // sometimes it doesn't work ideally like that.
+ float expected_data_top[width * height * 2] = {
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.2f, 0.6f, 0.8f, 0.0f, 0.0f, // Unchanged.
+ // | / / / / / / / / / |
+ // 0 +45 +45 +45 +45 +45 +45 +45 +45 +45 0
+ 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.3f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f,
+ // | / / / / / / / / / |
+ 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, 0.0f, 0.0f, 0.0f, 0.0f, // Unchanged.
+
+ // 0 -45 -63 -63 -63 -63 -63 -63 +63! +63! +63!
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.2f, 0.3f, 0.2f,
+
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, // Unchanged.
+ 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.4f, 0.6f, 0.4f, 0.6f, 0.8f, // Repeated.
+ };
+ float neg_blowout_data[width * height];
+ float pos_blowout_data[width * height];
+ float out_data[width * height * 2];
+
+ // Set previous and next fields to something so big that all the temporal checks
+ // are effectively turned off.
+ fill(neg_blowout_data, neg_blowout_data + width * height, -100.0f);
+ fill(pos_blowout_data, pos_blowout_data + width * height, 100.0f);
+
+ EffectChainTester tester(NULL, width, height * 2);
+ Effect *input1 = tester.add_input(neg_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input2 = tester.add_input(neg_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input3 = tester.add_input(data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input4 = tester.add_input(pos_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *input5 = tester.add_input(pos_blowout_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *deinterlace_effect = tester.get_chain()->add_effect(new DeinterlaceEffect(), input1, input2, input3, input4, input5);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 0));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+ expect_equal(expected_data_top, out_data, width, height * 2);
+}
+
+TEST(DeinterlaceTest, FlickerBox) {
+ const int width = 4;
+ const int height = 4;
+ float white_data[width * height] = {
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ };
+ float black_data[width * height] = {
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ };
+ float striped_data[width * height * 2] = {
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ 1.0f, 1.0f, 1.0f, 1.0f,
+ 0.0f, 0.0f, 0.0f, 0.0f,
+ };
+ float out_data[width * height * 2];
+
+ {
+ EffectChainTester tester(NULL, width, height * 2);
+ Effect *white_input = tester.add_input(white_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *black_input = tester.add_input(black_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *deinterlace_effect = tester.get_chain()->add_effect(new DeinterlaceEffect(), white_input, black_input, white_input, black_input, white_input);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 0));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+ expect_equal(white_data, out_data, width, height);
+ expect_equal(white_data, out_data + width * height, width, height);
+ }
+
+ {
+ EffectChainTester tester(NULL, width, height * 2);
+ Effect *white_input = tester.add_input(white_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *black_input = tester.add_input(black_data, FORMAT_GRAYSCALE, COLORSPACE_sRGB, GAMMA_LINEAR, width, height);
+ Effect *deinterlace_effect = tester.get_chain()->add_effect(new DeinterlaceEffect(), white_input, black_input, white_input, black_input, white_input);
+
+ ASSERT_TRUE(deinterlace_effect->set_int("enable_spatial_interlacing_check", 0));
+ ASSERT_TRUE(deinterlace_effect->set_int("current_field_position", 0));
+ tester.run(out_data, GL_RED, COLORSPACE_sRGB, GAMMA_LINEAR, OUTPUT_ALPHA_FORMAT_PREMULTIPLIED);
+ expect_equal(striped_data, out_data, width, height * 2);
+ }
+}
+
+} // namespace movit
projects / movit / blobdiff