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-rw-r--r--third_party/aom/test/film_grain_table_test.cc250
1 files changed, 250 insertions, 0 deletions
diff --git a/third_party/aom/test/film_grain_table_test.cc b/third_party/aom/test/film_grain_table_test.cc
new file mode 100644
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+++ b/third_party/aom/test/film_grain_table_test.cc
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+/*
+ * Copyright (c) 2018, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+#include <string>
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "aom_dsp/grain_table.h"
+#include "aom/internal/aom_codec_internal.h"
+#include "av1/encoder/grain_test_vectors.h"
+#include "test/video_source.h"
+
+void grain_equal(const aom_film_grain_t *expected,
+ const aom_film_grain_t *actual) {
+ EXPECT_EQ(expected->apply_grain, actual->apply_grain);
+ EXPECT_EQ(expected->update_parameters, actual->update_parameters);
+ if (!expected->update_parameters) return;
+ EXPECT_EQ(expected->num_y_points, actual->num_y_points);
+ EXPECT_EQ(expected->num_cb_points, actual->num_cb_points);
+ EXPECT_EQ(expected->num_cr_points, actual->num_cr_points);
+ EXPECT_EQ(0, memcmp(expected->scaling_points_y, actual->scaling_points_y,
+ expected->num_y_points *
+ sizeof(expected->scaling_points_y[0])));
+ EXPECT_EQ(0, memcmp(expected->scaling_points_cb, actual->scaling_points_cb,
+ expected->num_cb_points *
+ sizeof(expected->scaling_points_cb[0])));
+ EXPECT_EQ(0, memcmp(expected->scaling_points_cr, actual->scaling_points_cr,
+ expected->num_cr_points *
+ sizeof(expected->scaling_points_cr[0])));
+ EXPECT_EQ(expected->scaling_shift, actual->scaling_shift);
+ EXPECT_EQ(expected->ar_coeff_lag, actual->ar_coeff_lag);
+ EXPECT_EQ(expected->ar_coeff_shift, actual->ar_coeff_shift);
+
+ const int num_pos_luma =
+ 2 * expected->ar_coeff_lag * (expected->ar_coeff_lag + 1);
+ const int num_pos_chroma = num_pos_luma;
+ EXPECT_EQ(0, memcmp(expected->ar_coeffs_y, actual->ar_coeffs_y,
+ sizeof(expected->ar_coeffs_y[0]) * num_pos_luma));
+ if (actual->num_cb_points || actual->chroma_scaling_from_luma) {
+ EXPECT_EQ(0, memcmp(expected->ar_coeffs_cb, actual->ar_coeffs_cb,
+ sizeof(expected->ar_coeffs_cb[0]) * num_pos_chroma));
+ }
+ if (actual->num_cr_points || actual->chroma_scaling_from_luma) {
+ EXPECT_EQ(0, memcmp(expected->ar_coeffs_cr, actual->ar_coeffs_cr,
+ sizeof(expected->ar_coeffs_cr[0]) * num_pos_chroma));
+ }
+ EXPECT_EQ(expected->overlap_flag, actual->overlap_flag);
+ EXPECT_EQ(expected->chroma_scaling_from_luma,
+ actual->chroma_scaling_from_luma);
+ EXPECT_EQ(expected->grain_scale_shift, actual->grain_scale_shift);
+ // EXPECT_EQ(expected->random_seed, actual->random_seed);
+
+ // clip_to_restricted and bit_depth aren't written
+ if (expected->num_cb_points) {
+ EXPECT_EQ(expected->cb_mult, actual->cb_mult);
+ EXPECT_EQ(expected->cb_luma_mult, actual->cb_luma_mult);
+ EXPECT_EQ(expected->cb_offset, actual->cb_offset);
+ }
+ if (expected->num_cr_points) {
+ EXPECT_EQ(expected->cr_mult, actual->cr_mult);
+ EXPECT_EQ(expected->cr_luma_mult, actual->cr_luma_mult);
+ EXPECT_EQ(expected->cr_offset, actual->cr_offset);
+ }
+}
+
+TEST(FilmGrainTableTest, AddAndLookupSingleSegment) {
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+
+ aom_film_grain_t grain;
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain));
+
+ aom_film_grain_table_append(&table, 1000, 2000, film_grain_test_vectors + 0);
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain));
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain));
+
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain));
+
+ grain.bit_depth = film_grain_test_vectors[0].bit_depth;
+ EXPECT_EQ(0, memcmp(&grain, film_grain_test_vectors + 0, sizeof(table)));
+
+ // Extend the existing segment
+ aom_film_grain_table_append(&table, 2000, 3000, film_grain_test_vectors + 0);
+ EXPECT_EQ(0, table.head->next);
+
+ // Lookup and remove and check that the entry is no longer there
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, true, &grain));
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain));
+
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, true, &grain));
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain));
+
+ EXPECT_EQ(0, table.head);
+ EXPECT_EQ(0, table.tail);
+ aom_film_grain_table_free(&table);
+}
+
+TEST(FilmGrainTableTest, SplitSingleSegment) {
+ aom_film_grain_table_t table;
+ aom_film_grain_t grain;
+ memset(&table, 0, sizeof(table));
+
+ aom_film_grain_table_append(&table, 0, 1000, film_grain_test_vectors + 0);
+
+ // Test lookup and remove that adjusts start time
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 0, 100, true, &grain));
+ EXPECT_EQ(NULL, table.head->next);
+ EXPECT_EQ(100, table.head->start_time);
+
+ // Test lookup and remove that adjusts end time
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 900, 1000, true, &grain));
+ EXPECT_EQ(NULL, table.head->next);
+ EXPECT_EQ(100, table.head->start_time);
+ EXPECT_EQ(900, table.head->end_time);
+
+ // Test lookup and remove that splits the first entry
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, 400, 600, true, &grain));
+ EXPECT_EQ(100, table.head->start_time);
+ EXPECT_EQ(400, table.head->end_time);
+
+ ASSERT_NE((void *)NULL, table.head->next);
+ EXPECT_EQ(table.tail, table.head->next);
+ EXPECT_EQ(600, table.head->next->start_time);
+ EXPECT_EQ(900, table.head->next->end_time);
+
+ aom_film_grain_table_free(&table);
+}
+
+TEST(FilmGrainTableTest, AddAndLookupMultipleSegments) {
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+
+ aom_film_grain_t grain;
+ const int kNumTestVectors =
+ sizeof(film_grain_test_vectors) / sizeof(film_grain_test_vectors[0]);
+ for (int i = 0; i < kNumTestVectors; ++i) {
+ aom_film_grain_table_append(&table, i * 1000, (i + 1) * 1000,
+ film_grain_test_vectors + i);
+ }
+
+ for (int i = kNumTestVectors - 1; i >= 0; --i) {
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000,
+ true, &grain));
+ grain_equal(film_grain_test_vectors + i, &grain);
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000,
+ true, &grain));
+ }
+
+ // Verify that all the data has been removed
+ for (int i = 0; i < kNumTestVectors; ++i) {
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000,
+ true, &grain));
+ }
+ aom_film_grain_table_free(&table);
+}
+
+class FilmGrainTableIOTest : public ::testing::Test {
+ protected:
+ void SetUp() { memset(&error_, 0, sizeof(error_)); }
+ struct aom_internal_error_info error_;
+};
+
+TEST_F(FilmGrainTableIOTest, ReadMissingFile) {
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+ ASSERT_EQ(AOM_CODEC_ERROR, aom_film_grain_table_read(
+ &table, "/path/to/missing/file", &error_));
+}
+
+TEST_F(FilmGrainTableIOTest, ReadTruncatedFile) {
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+
+ std::string grain_file;
+ FILE *file = libaom_test::GetTempOutFile(&grain_file);
+ fwrite("deadbeef", 8, 1, file);
+ fclose(file);
+ ASSERT_EQ(AOM_CODEC_ERROR,
+ aom_film_grain_table_read(&table, grain_file.c_str(), &error_));
+ EXPECT_EQ(0, remove(grain_file.c_str()));
+}
+
+TEST_F(FilmGrainTableIOTest, RoundTripReadWrite) {
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+
+ aom_film_grain_t expected_grain[16];
+ const int kNumTestVectors =
+ sizeof(film_grain_test_vectors) / sizeof(film_grain_test_vectors[0]);
+ for (int i = 0; i < kNumTestVectors; ++i) {
+ expected_grain[i] = film_grain_test_vectors[i];
+ expected_grain[i].random_seed = i;
+ expected_grain[i].update_parameters = i % 2;
+ expected_grain[i].apply_grain = (i + 1) % 2;
+ expected_grain[i].bit_depth = 0;
+ aom_film_grain_table_append(&table, i * 1000, (i + 1) * 1000,
+ expected_grain + i);
+ }
+ std::string grain_file;
+ fclose(libaom_test::GetTempOutFile(&grain_file));
+ ASSERT_EQ(AOM_CODEC_OK,
+ aom_film_grain_table_write(&table, grain_file.c_str(), &error_));
+ aom_film_grain_table_free(&table);
+
+ memset(&table, 0, sizeof(table));
+ ASSERT_EQ(AOM_CODEC_OK,
+ aom_film_grain_table_read(&table, grain_file.c_str(), &error_));
+ for (int i = 0; i < kNumTestVectors; ++i) {
+ aom_film_grain_t grain;
+ EXPECT_TRUE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000,
+ true, &grain));
+ grain_equal(expected_grain + i, &grain);
+ }
+ aom_film_grain_table_free(&table);
+ EXPECT_EQ(0, remove(grain_file.c_str()));
+}
+
+TEST_F(FilmGrainTableIOTest, RoundTripSplit) {
+ std::string grain_file;
+ fclose(libaom_test::GetTempOutFile(&grain_file));
+
+ aom_film_grain_table_t table;
+ memset(&table, 0, sizeof(table));
+
+ aom_film_grain_t grain = film_grain_test_vectors[0];
+ aom_film_grain_table_append(&table, 0, 3000, &grain);
+ ASSERT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, true, &grain));
+ ASSERT_TRUE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain));
+ EXPECT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain));
+ ASSERT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain));
+ ASSERT_EQ(AOM_CODEC_OK,
+ aom_film_grain_table_write(&table, grain_file.c_str(), &error_));
+ aom_film_grain_table_free(&table);
+
+ memset(&table, 0, sizeof(table));
+ ASSERT_EQ(AOM_CODEC_OK,
+ aom_film_grain_table_read(&table, grain_file.c_str(), &error_));
+ ASSERT_TRUE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain));
+ ASSERT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain));
+ ASSERT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain));
+ aom_film_grain_table_free(&table);
+
+ EXPECT_EQ(0, remove(grain_file.c_str()));
+}
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