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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 "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/codec_factory.h"
#include "test/encode_test_driver.h"
#include "test/i420_video_source.h"
#include "test/util.h"
#include "test/video_source.h"
namespace {
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);
}
}
} // namespace
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(nullptr, 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(nullptr, table.head);
EXPECT_EQ(nullptr, table.tail);
aom_film_grain_table_free(&table);
}
TEST(FilmGrainTableTest, AddSingleSegmentRemoveBiggerSegment) {
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);
EXPECT_TRUE(aom_film_grain_table_lookup(&table, 0, 1100, true, &grain));
EXPECT_EQ(nullptr, table.head);
EXPECT_EQ(nullptr, 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(nullptr, 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(nullptr, 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(nullptr, 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() override { 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);
ASSERT_NE(file, nullptr);
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;
FILE *tmpfile = libaom_test::GetTempOutFile(&grain_file);
ASSERT_NE(tmpfile, nullptr);
fclose(tmpfile);
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;
FILE *tmpfile = libaom_test::GetTempOutFile(&grain_file);
ASSERT_NE(tmpfile, nullptr);
fclose(tmpfile);
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()));
}
const ::libaom_test::TestMode kFilmGrainEncodeTestModes[] = {
::libaom_test::kRealTime,
#if !CONFIG_REALTIME_ONLY
::libaom_test::kOnePassGood
#endif
};
class FilmGrainEncodeTest
: public ::libaom_test::CodecTestWith3Params<int, int,
::libaom_test::TestMode>,
public ::libaom_test::EncoderTest {
protected:
FilmGrainEncodeTest()
: EncoderTest(GET_PARAM(0)), test_monochrome_(GET_PARAM(1)),
key_frame_dist_(GET_PARAM(2)), test_mode_(GET_PARAM(3)) {}
~FilmGrainEncodeTest() override = default;
void SetUp() override {
InitializeConfig(test_mode_);
cfg_.monochrome = test_monochrome_ == 1;
cfg_.rc_target_bitrate = 300;
cfg_.kf_max_dist = key_frame_dist_;
cfg_.g_lag_in_frames = 0;
}
void PreEncodeFrameHook(::libaom_test::VideoSource *video,
::libaom_test::Encoder *encoder) override {
if (video->frame() == 0) {
encoder->Control(AOME_SET_CPUUSED,
test_mode_ == ::libaom_test::kRealTime ? 7 : 5);
encoder->Control(AV1E_SET_TUNE_CONTENT, AOM_CONTENT_FILM);
encoder->Control(AV1E_SET_DENOISE_NOISE_LEVEL, 1);
} else if (video->frame() == 1) {
cfg_.monochrome = (test_monochrome_ == 1 || test_monochrome_ == 2);
encoder->Config(&cfg_);
} else {
cfg_.monochrome = test_monochrome_ == 1;
encoder->Config(&cfg_);
}
}
bool DoDecode() const override { return false; }
void DoTest() {
::libaom_test::I420VideoSource video("hantro_collage_w352h288.yuv", 352,
288, 30, 1, 0, 3);
cfg_.g_w = video.img()->d_w;
cfg_.g_h = video.img()->d_h;
ASSERT_NO_FATAL_FAILURE(RunLoop(&video));
}
private:
// 0: monochroome always off.
// 1: monochrome always on.
// 2: monochrome changes from 0, 1, 0, for encoded frames 0, 1, 2.
// The case where monochrome changes from 1 to 0 (i.e., encoder initialized
// with monochrome = 1 and then subsequently encoded with monochrome = 0)
// will fail. The test InitMonochrome1_EncodeMonochrome0 below verifies this.
int test_monochrome_;
int key_frame_dist_;
::libaom_test::TestMode test_mode_;
};
TEST_P(FilmGrainEncodeTest, Test) { DoTest(); }
AV1_INSTANTIATE_TEST_SUITE(FilmGrainEncodeTest, ::testing::Range(0, 3),
::testing::Values(0, 10),
::testing::ValuesIn(kFilmGrainEncodeTestModes));
// Initialize encoder with monochrome = 1, and then encode frame with
// monochrome = 0. This will result in an error: see the following check
// in encoder_set_config() in av1/av1_cx_iface.c.
// TODO(marpan): Consider moving this test to another file, as the failure
// has nothing to do with film grain mode.
TEST(FilmGrainEncodeTest, InitMonochrome1EncodeMonochrome0) {
const int kWidth = 352;
const int kHeight = 288;
const int usage = AOM_USAGE_REALTIME;
aom_codec_iface_t *iface = aom_codec_av1_cx();
aom_codec_enc_cfg_t cfg;
ASSERT_EQ(aom_codec_enc_config_default(iface, &cfg, usage), AOM_CODEC_OK);
aom_codec_ctx_t enc;
cfg.g_w = kWidth;
cfg.g_h = kHeight;
// Initialize encoder, with monochrome = 0.
cfg.monochrome = 1;
aom_codec_err_t init_status = aom_codec_enc_init(&enc, iface, &cfg, 0);
ASSERT_EQ(init_status, AOM_CODEC_OK);
ASSERT_EQ(aom_codec_control(&enc, AOME_SET_CPUUSED, 7), AOM_CODEC_OK);
ASSERT_EQ(aom_codec_control(&enc, AV1E_SET_TUNE_CONTENT, AOM_CONTENT_FILM),
AOM_CODEC_OK);
ASSERT_EQ(aom_codec_control(&enc, AV1E_SET_DENOISE_NOISE_LEVEL, 1),
AOM_CODEC_OK);
// Set image with zero values.
constexpr size_t kBufferSize =
kWidth * kHeight + 2 * (kWidth + 1) / 2 * (kHeight + 1) / 2;
std::vector<unsigned char> buffer(kBufferSize);
aom_image_t img;
EXPECT_EQ(&img, aom_img_wrap(&img, AOM_IMG_FMT_I420, kWidth, kHeight, 1,
buffer.data()));
// Encode first frame.
ASSERT_EQ(aom_codec_encode(&enc, &img, 0, 1, 0), AOM_CODEC_OK);
// Second frame: update config with monochrome = 1.
cfg.monochrome = 0;
ASSERT_EQ(aom_codec_enc_config_set(&enc, &cfg), AOM_CODEC_INVALID_PARAM);
ASSERT_EQ(aom_codec_destroy(&enc), AOM_CODEC_OK);
}