1 /*
2 * Copyright (c) 2022, 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
12 #include <memory>
13
14 #include "aom_ports/mem.h"
15 #include "aom_dsp/ssim.h"
16 #include "av1/common/blockd.h"
17 #include "gtest/gtest.h"
18 #include "test/codec_factory.h"
19 #include "test/encode_test_driver.h"
20 #include "test/util.h"
21 #include "test/y4m_video_source.h"
22
23 namespace {
24
25 const unsigned int kFrames = 10;
26 const unsigned int kCqLevel = 18;
27 // List of ssim thresholds for speed settings 0-8 with all intra encoding mode.
28 const double kSsimThreshold[] = { 83.4, 83.4, 83.4, 83.3, 83.3,
29 83.0, 82.3, 81.1, 81.1 };
30
31 typedef struct {
32 const char *filename;
33 unsigned int input_bit_depth;
34 aom_img_fmt fmt;
35 aom_bit_depth_t bit_depth;
36 unsigned int profile;
37 } TestVideoParam;
38
operator <<(std::ostream & os,const TestVideoParam & test_arg)39 std::ostream &operator<<(std::ostream &os, const TestVideoParam &test_arg) {
40 return os << "TestVideoParam { filename:" << test_arg.filename
41 << " input_bit_depth:" << test_arg.input_bit_depth
42 << " fmt:" << test_arg.fmt << " bit_depth:" << test_arg.bit_depth
43 << " profile:" << test_arg.profile << " }";
44 }
45
46 const TestVideoParam kTestVectors[] = {
47 { "park_joy_90p_8_420.y4m", 8, AOM_IMG_FMT_I420, AOM_BITS_8, 0 },
48 { "park_joy_90p_8_422.y4m", 8, AOM_IMG_FMT_I422, AOM_BITS_8, 2 },
49 { "park_joy_90p_8_444.y4m", 8, AOM_IMG_FMT_I444, AOM_BITS_8, 1 },
50 #if CONFIG_AV1_HIGHBITDEPTH
51 { "park_joy_90p_10_420.y4m", 10, AOM_IMG_FMT_I42016, AOM_BITS_10, 0 },
52 { "park_joy_90p_10_422.y4m", 10, AOM_IMG_FMT_I42216, AOM_BITS_10, 2 },
53 { "park_joy_90p_10_444.y4m", 10, AOM_IMG_FMT_I44416, AOM_BITS_10, 1 },
54 { "park_joy_90p_12_420.y4m", 12, AOM_IMG_FMT_I42016, AOM_BITS_12, 2 },
55 { "park_joy_90p_12_422.y4m", 12, AOM_IMG_FMT_I42216, AOM_BITS_12, 2 },
56 { "park_joy_90p_12_444.y4m", 12, AOM_IMG_FMT_I44416, AOM_BITS_12, 2 },
57 #endif
58 };
59
60 // This class is used to check adherence to given ssim value, while using the
61 // "dist-metric=qm-psnr" option.
62 class EndToEndQMPSNRTest
63 : public ::libaom_test::CodecTestWith3Params<libaom_test::TestMode,
64 TestVideoParam, int>,
65 public ::libaom_test::EncoderTest {
66 protected:
EndToEndQMPSNRTest()67 EndToEndQMPSNRTest()
68 : EncoderTest(GET_PARAM(0)), encoding_mode_(GET_PARAM(1)),
69 test_video_param_(GET_PARAM(2)), cpu_used_(GET_PARAM(3)), nframes_(0),
70 ssim_(0.0) {}
71
72 ~EndToEndQMPSNRTest() override = default;
73
SetUp()74 void SetUp() override { InitializeConfig(encoding_mode_); }
75
BeginPassHook(unsigned int)76 void BeginPassHook(unsigned int) override {
77 nframes_ = 0;
78 ssim_ = 0.0;
79 }
80
CalculateFrameLevelSSIM(const aom_image_t * img_src,const aom_image_t * img_enc,aom_bit_depth_t bit_depth,unsigned int input_bit_depth)81 void CalculateFrameLevelSSIM(const aom_image_t *img_src,
82 const aom_image_t *img_enc,
83 aom_bit_depth_t bit_depth,
84 unsigned int input_bit_depth) override {
85 double frame_ssim;
86 double plane_ssim[MAX_MB_PLANE] = { 0.0, 0.0, 0.0 };
87 int crop_widths[PLANE_TYPES];
88 int crop_heights[PLANE_TYPES];
89 crop_widths[PLANE_TYPE_Y] = img_src->d_w;
90 crop_heights[PLANE_TYPE_Y] = img_src->d_h;
91 // Width of UV planes calculated based on chroma_shift values.
92 crop_widths[PLANE_TYPE_UV] =
93 img_src->x_chroma_shift == 1 ? (img_src->w + 1) >> 1 : img_src->w;
94 crop_heights[PLANE_TYPE_UV] =
95 img_src->y_chroma_shift == 1 ? (img_src->h + 1) >> 1 : img_src->h;
96 nframes_++;
97
98 #if CONFIG_AV1_HIGHBITDEPTH
99 uint8_t is_hbd = bit_depth > AOM_BITS_8;
100 if (is_hbd) {
101 // HBD ssim calculation.
102 uint8_t shift = bit_depth - input_bit_depth;
103 for (int i = AOM_PLANE_Y; i < MAX_MB_PLANE; ++i) {
104 const int is_uv = i > AOM_PLANE_Y;
105 plane_ssim[i] = aom_highbd_ssim2(
106 CONVERT_TO_BYTEPTR(img_src->planes[i]),
107 CONVERT_TO_BYTEPTR(img_enc->planes[i]),
108 img_src->stride[is_uv] >> is_hbd, img_enc->stride[is_uv] >> is_hbd,
109 crop_widths[is_uv], crop_heights[is_uv], input_bit_depth, shift);
110 }
111 frame_ssim = plane_ssim[AOM_PLANE_Y] * .8 +
112 .1 * (plane_ssim[AOM_PLANE_U] + plane_ssim[AOM_PLANE_V]);
113 // Accumulate to find sequence level ssim value.
114 ssim_ += frame_ssim;
115 return;
116 }
117 #else
118 (void)bit_depth;
119 (void)input_bit_depth;
120 #endif // CONFIG_AV1_HIGHBITDEPTH
121
122 // LBD ssim calculation.
123 for (int i = AOM_PLANE_Y; i < MAX_MB_PLANE; ++i) {
124 const int is_uv = i > AOM_PLANE_Y;
125 plane_ssim[i] = aom_ssim2(img_src->planes[i], img_enc->planes[i],
126 img_src->stride[is_uv], img_enc->stride[is_uv],
127 crop_widths[is_uv], crop_heights[is_uv]);
128 }
129 frame_ssim = plane_ssim[AOM_PLANE_Y] * .8 +
130 .1 * (plane_ssim[AOM_PLANE_U] + plane_ssim[AOM_PLANE_V]);
131 // Accumulate to find sequence level ssim value.
132 ssim_ += frame_ssim;
133 }
134
PreEncodeFrameHook(::libaom_test::VideoSource * video,::libaom_test::Encoder * encoder)135 void PreEncodeFrameHook(::libaom_test::VideoSource *video,
136 ::libaom_test::Encoder *encoder) override {
137 if (video->frame() == 0) {
138 encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
139 encoder->Control(AV1E_SET_TILE_COLUMNS, 4);
140 encoder->Control(AOME_SET_CPUUSED, cpu_used_);
141 encoder->Control(AOME_SET_TUNING, AOM_TUNE_SSIM);
142 encoder->Control(AOME_SET_CQ_LEVEL, kCqLevel);
143 encoder->SetOption("dist-metric", "qm-psnr");
144 }
145 }
146
GetAverageSsim() const147 double GetAverageSsim() const {
148 if (nframes_) return 100 * pow(ssim_ / nframes_, 8.0);
149 return 0.0;
150 }
151
GetSsimThreshold()152 double GetSsimThreshold() { return kSsimThreshold[cpu_used_]; }
153
DoTest()154 void DoTest() {
155 cfg_.g_profile = test_video_param_.profile;
156 cfg_.g_input_bit_depth = test_video_param_.input_bit_depth;
157 cfg_.g_bit_depth = test_video_param_.bit_depth;
158 if (cfg_.g_bit_depth > 8) init_flags_ |= AOM_CODEC_USE_HIGHBITDEPTH;
159
160 std::unique_ptr<libaom_test::VideoSource> video(
161 new libaom_test::Y4mVideoSource(test_video_param_.filename, 0,
162 kFrames));
163 ASSERT_NE(video, nullptr);
164 ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
165 const double ssim = GetAverageSsim();
166 EXPECT_GT(ssim, GetSsimThreshold())
167 << "encoding mode = " << encoding_mode_ << ", cpu used = " << cpu_used_;
168 }
169
170 private:
171 const libaom_test::TestMode encoding_mode_;
172 const TestVideoParam test_video_param_;
173 const int cpu_used_;
174 unsigned int nframes_;
175 double ssim_;
176 };
177
178 class EndToEndQMPSNRTestLarge : public EndToEndQMPSNRTest {};
179
TEST_P(EndToEndQMPSNRTestLarge,EndtoEndQMPSNRTest)180 TEST_P(EndToEndQMPSNRTestLarge, EndtoEndQMPSNRTest) { DoTest(); }
181
TEST_P(EndToEndQMPSNRTest,EndtoEndQMPSNRTest)182 TEST_P(EndToEndQMPSNRTest, EndtoEndQMPSNRTest) { DoTest(); }
183
184 AV1_INSTANTIATE_TEST_SUITE(EndToEndQMPSNRTestLarge,
185 ::testing::Values(::libaom_test::kAllIntra),
186 ::testing::ValuesIn(kTestVectors),
187 ::testing::Values(2, 4, 6, 8)); // cpu_used
188
189 AV1_INSTANTIATE_TEST_SUITE(EndToEndQMPSNRTest,
190 ::testing::Values(::libaom_test::kAllIntra),
191 ::testing::Values(kTestVectors[0]), // 420
192 ::testing::Values(6)); // cpu_used
193 } // namespace
194