Johann | ab79c45 | 2018-06-27 10:11:30 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2018, Alliance for Open Media. All rights reserved |
| 3 | * |
| 4 | * This source code is subject to the terms of the BSD 2 Clause License and |
| 5 | * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License |
| 6 | * was not distributed with this source code in the LICENSE file, you can |
| 7 | * obtain it at www.aomedia.org/license/software. If the Alliance for Open |
| 8 | * Media Patent License 1.0 was not distributed with this source code in the |
| 9 | * PATENTS file, you can obtain it at www.aomedia.org/license/patent. |
| 10 | */ |
| 11 | |
Neil Birkbeck | eb895ef | 2018-03-14 17:51:03 -0700 | [diff] [blame] | 12 | #include <string> |
| 13 | #include "third_party/googletest/src/googletest/include/gtest/gtest.h" |
| 14 | #include "aom_dsp/grain_table.h" |
| 15 | #include "aom/internal/aom_codec_internal.h" |
| 16 | #include "av1/encoder/grain_test_vectors.h" |
| 17 | #include "test/video_source.h" |
| 18 | |
| 19 | void grain_equal(const aom_film_grain_t *expected, |
| 20 | const aom_film_grain_t *actual) { |
| 21 | EXPECT_EQ(expected->apply_grain, actual->apply_grain); |
| 22 | EXPECT_EQ(expected->update_parameters, actual->update_parameters); |
| 23 | if (!expected->update_parameters) return; |
| 24 | EXPECT_EQ(expected->num_y_points, actual->num_y_points); |
| 25 | EXPECT_EQ(expected->num_cb_points, actual->num_cb_points); |
| 26 | EXPECT_EQ(expected->num_cr_points, actual->num_cr_points); |
| 27 | EXPECT_EQ(0, memcmp(expected->scaling_points_y, actual->scaling_points_y, |
| 28 | expected->num_y_points * |
| 29 | sizeof(expected->scaling_points_y[0]))); |
| 30 | EXPECT_EQ(0, memcmp(expected->scaling_points_cb, actual->scaling_points_cb, |
| 31 | expected->num_cb_points * |
| 32 | sizeof(expected->scaling_points_cb[0]))); |
| 33 | EXPECT_EQ(0, memcmp(expected->scaling_points_cr, actual->scaling_points_cr, |
| 34 | expected->num_cr_points * |
| 35 | sizeof(expected->scaling_points_cr[0]))); |
| 36 | EXPECT_EQ(expected->scaling_shift, actual->scaling_shift); |
| 37 | EXPECT_EQ(expected->ar_coeff_lag, actual->ar_coeff_lag); |
| 38 | EXPECT_EQ(expected->ar_coeff_shift, actual->ar_coeff_shift); |
| 39 | |
| 40 | const int num_pos_luma = |
| 41 | 2 * expected->ar_coeff_lag * (expected->ar_coeff_lag + 1); |
| 42 | const int num_pos_chroma = num_pos_luma; |
| 43 | EXPECT_EQ(0, memcmp(expected->ar_coeffs_y, actual->ar_coeffs_y, |
| 44 | sizeof(expected->ar_coeffs_y[0]) * num_pos_luma)); |
| 45 | if (actual->num_cb_points || actual->chroma_scaling_from_luma) { |
| 46 | EXPECT_EQ(0, memcmp(expected->ar_coeffs_cb, actual->ar_coeffs_cb, |
| 47 | sizeof(expected->ar_coeffs_cb[0]) * num_pos_chroma)); |
| 48 | } |
| 49 | if (actual->num_cr_points || actual->chroma_scaling_from_luma) { |
| 50 | EXPECT_EQ(0, memcmp(expected->ar_coeffs_cr, actual->ar_coeffs_cr, |
| 51 | sizeof(expected->ar_coeffs_cr[0]) * num_pos_chroma)); |
| 52 | } |
| 53 | EXPECT_EQ(expected->overlap_flag, actual->overlap_flag); |
| 54 | EXPECT_EQ(expected->chroma_scaling_from_luma, |
| 55 | actual->chroma_scaling_from_luma); |
| 56 | EXPECT_EQ(expected->grain_scale_shift, actual->grain_scale_shift); |
| 57 | // EXPECT_EQ(expected->random_seed, actual->random_seed); |
| 58 | |
| 59 | // clip_to_restricted and bit_depth aren't written |
| 60 | if (expected->num_cb_points) { |
| 61 | EXPECT_EQ(expected->cb_mult, actual->cb_mult); |
| 62 | EXPECT_EQ(expected->cb_luma_mult, actual->cb_luma_mult); |
| 63 | EXPECT_EQ(expected->cb_offset, actual->cb_offset); |
| 64 | } |
| 65 | if (expected->num_cr_points) { |
| 66 | EXPECT_EQ(expected->cr_mult, actual->cr_mult); |
| 67 | EXPECT_EQ(expected->cr_luma_mult, actual->cr_luma_mult); |
| 68 | EXPECT_EQ(expected->cr_offset, actual->cr_offset); |
| 69 | } |
| 70 | } |
| 71 | |
| 72 | TEST(FilmGrainTableTest, AddAndLookupSingleSegment) { |
| 73 | aom_film_grain_table_t table; |
| 74 | memset(&table, 0, sizeof(table)); |
| 75 | |
| 76 | aom_film_grain_t grain; |
| 77 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain)); |
| 78 | |
| 79 | aom_film_grain_table_append(&table, 1000, 2000, film_grain_test_vectors + 0); |
| 80 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain)); |
| 81 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain)); |
| 82 | |
| 83 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain)); |
| 84 | |
| 85 | grain.bit_depth = film_grain_test_vectors[0].bit_depth; |
| 86 | EXPECT_EQ(0, memcmp(&grain, film_grain_test_vectors + 0, sizeof(table))); |
| 87 | |
| 88 | // Extend the existing segment |
| 89 | aom_film_grain_table_append(&table, 2000, 3000, film_grain_test_vectors + 0); |
| 90 | EXPECT_EQ(0, table.head->next); |
| 91 | |
| 92 | // Lookup and remove and check that the entry is no longer there |
| 93 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, true, &grain)); |
| 94 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain)); |
| 95 | |
| 96 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, true, &grain)); |
| 97 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain)); |
| 98 | |
| 99 | EXPECT_EQ(0, table.head); |
| 100 | EXPECT_EQ(0, table.tail); |
| 101 | aom_film_grain_table_free(&table); |
| 102 | } |
| 103 | |
| 104 | TEST(FilmGrainTableTest, SplitSingleSegment) { |
| 105 | aom_film_grain_table_t table; |
| 106 | aom_film_grain_t grain; |
| 107 | memset(&table, 0, sizeof(table)); |
| 108 | |
| 109 | aom_film_grain_table_append(&table, 0, 1000, film_grain_test_vectors + 0); |
| 110 | |
| 111 | // Test lookup and remove that adjusts start time |
| 112 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 0, 100, true, &grain)); |
| 113 | EXPECT_EQ(NULL, table.head->next); |
| 114 | EXPECT_EQ(100, table.head->start_time); |
| 115 | |
| 116 | // Test lookup and remove that adjusts end time |
| 117 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 900, 1000, true, &grain)); |
| 118 | EXPECT_EQ(NULL, table.head->next); |
| 119 | EXPECT_EQ(100, table.head->start_time); |
| 120 | EXPECT_EQ(900, table.head->end_time); |
| 121 | |
| 122 | // Test lookup and remove that splits the first entry |
| 123 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, 400, 600, true, &grain)); |
| 124 | EXPECT_EQ(100, table.head->start_time); |
| 125 | EXPECT_EQ(400, table.head->end_time); |
| 126 | |
| 127 | ASSERT_NE((void *)NULL, table.head->next); |
| 128 | EXPECT_EQ(table.tail, table.head->next); |
| 129 | EXPECT_EQ(600, table.head->next->start_time); |
| 130 | EXPECT_EQ(900, table.head->next->end_time); |
| 131 | |
| 132 | aom_film_grain_table_free(&table); |
| 133 | } |
| 134 | |
| 135 | TEST(FilmGrainTableTest, AddAndLookupMultipleSegments) { |
| 136 | aom_film_grain_table_t table; |
| 137 | memset(&table, 0, sizeof(table)); |
| 138 | |
| 139 | aom_film_grain_t grain; |
| 140 | const int kNumTestVectors = |
| 141 | sizeof(film_grain_test_vectors) / sizeof(film_grain_test_vectors[0]); |
| 142 | for (int i = 0; i < kNumTestVectors; ++i) { |
| 143 | aom_film_grain_table_append(&table, i * 1000, (i + 1) * 1000, |
| 144 | film_grain_test_vectors + i); |
| 145 | } |
| 146 | |
| 147 | for (int i = kNumTestVectors - 1; i >= 0; --i) { |
| 148 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000, |
| 149 | true, &grain)); |
| 150 | grain_equal(film_grain_test_vectors + i, &grain); |
| 151 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000, |
| 152 | true, &grain)); |
| 153 | } |
| 154 | |
| 155 | // Verify that all the data has been removed |
| 156 | for (int i = 0; i < kNumTestVectors; ++i) { |
| 157 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000, |
| 158 | true, &grain)); |
| 159 | } |
| 160 | aom_film_grain_table_free(&table); |
| 161 | } |
| 162 | |
| 163 | class FilmGrainTableIOTest : public ::testing::Test { |
| 164 | protected: |
| 165 | void SetUp() { memset(&error_, 0, sizeof(error_)); } |
| 166 | struct aom_internal_error_info error_; |
| 167 | }; |
| 168 | |
| 169 | TEST_F(FilmGrainTableIOTest, ReadMissingFile) { |
| 170 | aom_film_grain_table_t table; |
| 171 | memset(&table, 0, sizeof(table)); |
| 172 | ASSERT_EQ(AOM_CODEC_ERROR, aom_film_grain_table_read( |
| 173 | &table, "/path/to/missing/file", &error_)); |
| 174 | } |
| 175 | |
| 176 | TEST_F(FilmGrainTableIOTest, ReadTruncatedFile) { |
| 177 | aom_film_grain_table_t table; |
| 178 | memset(&table, 0, sizeof(table)); |
| 179 | |
| 180 | std::string grain_file; |
| 181 | FILE *file = libaom_test::GetTempOutFile(&grain_file); |
| 182 | fwrite("deadbeef", 8, 1, file); |
| 183 | fclose(file); |
| 184 | ASSERT_EQ(AOM_CODEC_ERROR, |
| 185 | aom_film_grain_table_read(&table, grain_file.c_str(), &error_)); |
| 186 | EXPECT_EQ(0, remove(grain_file.c_str())); |
| 187 | } |
| 188 | |
| 189 | TEST_F(FilmGrainTableIOTest, RoundTripReadWrite) { |
| 190 | aom_film_grain_table_t table; |
| 191 | memset(&table, 0, sizeof(table)); |
| 192 | |
| 193 | aom_film_grain_t expected_grain[16]; |
| 194 | const int kNumTestVectors = |
| 195 | sizeof(film_grain_test_vectors) / sizeof(film_grain_test_vectors[0]); |
| 196 | for (int i = 0; i < kNumTestVectors; ++i) { |
| 197 | expected_grain[i] = film_grain_test_vectors[i]; |
| 198 | expected_grain[i].random_seed = i; |
| 199 | expected_grain[i].update_parameters = i % 2; |
| 200 | expected_grain[i].apply_grain = (i + 1) % 2; |
| 201 | expected_grain[i].bit_depth = 0; |
| 202 | aom_film_grain_table_append(&table, i * 1000, (i + 1) * 1000, |
| 203 | expected_grain + i); |
| 204 | } |
| 205 | std::string grain_file; |
| 206 | fclose(libaom_test::GetTempOutFile(&grain_file)); |
| 207 | ASSERT_EQ(AOM_CODEC_OK, |
| 208 | aom_film_grain_table_write(&table, grain_file.c_str(), &error_)); |
| 209 | aom_film_grain_table_free(&table); |
| 210 | |
| 211 | memset(&table, 0, sizeof(table)); |
| 212 | ASSERT_EQ(AOM_CODEC_OK, |
| 213 | aom_film_grain_table_read(&table, grain_file.c_str(), &error_)); |
| 214 | for (int i = 0; i < kNumTestVectors; ++i) { |
| 215 | aom_film_grain_t grain; |
| 216 | EXPECT_TRUE(aom_film_grain_table_lookup(&table, i * 1000, (i + 1) * 1000, |
| 217 | true, &grain)); |
| 218 | grain_equal(expected_grain + i, &grain); |
| 219 | } |
| 220 | aom_film_grain_table_free(&table); |
| 221 | EXPECT_EQ(0, remove(grain_file.c_str())); |
| 222 | } |
| 223 | |
| 224 | TEST_F(FilmGrainTableIOTest, RoundTripSplit) { |
| 225 | std::string grain_file; |
| 226 | fclose(libaom_test::GetTempOutFile(&grain_file)); |
| 227 | |
| 228 | aom_film_grain_table_t table; |
| 229 | memset(&table, 0, sizeof(table)); |
| 230 | |
| 231 | aom_film_grain_t grain = film_grain_test_vectors[0]; |
| 232 | aom_film_grain_table_append(&table, 0, 3000, &grain); |
| 233 | ASSERT_TRUE(aom_film_grain_table_lookup(&table, 1000, 2000, true, &grain)); |
| 234 | ASSERT_TRUE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain)); |
| 235 | EXPECT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain)); |
| 236 | ASSERT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain)); |
| 237 | ASSERT_EQ(AOM_CODEC_OK, |
| 238 | aom_film_grain_table_write(&table, grain_file.c_str(), &error_)); |
| 239 | aom_film_grain_table_free(&table); |
| 240 | |
| 241 | memset(&table, 0, sizeof(table)); |
| 242 | ASSERT_EQ(AOM_CODEC_OK, |
| 243 | aom_film_grain_table_read(&table, grain_file.c_str(), &error_)); |
| 244 | ASSERT_TRUE(aom_film_grain_table_lookup(&table, 0, 1000, false, &grain)); |
| 245 | ASSERT_FALSE(aom_film_grain_table_lookup(&table, 1000, 2000, false, &grain)); |
| 246 | ASSERT_TRUE(aom_film_grain_table_lookup(&table, 2000, 3000, false, &grain)); |
| 247 | aom_film_grain_table_free(&table); |
| 248 | |
| 249 | EXPECT_EQ(0, remove(grain_file.c_str())); |
| 250 | } |