190 lines
7.3 KiB
C++
190 lines
7.3 KiB
C++
/*
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* Copyright (c) 2021, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#include "aom_ports/mem.h"
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#include "aom_dsp/ssim.h"
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#include "av1/common/blockd.h"
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#include "test/codec_factory.h"
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#include "test/encode_test_driver.h"
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#include "test/util.h"
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#include "test/y4m_video_source.h"
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#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
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namespace {
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const unsigned int kFrames = 10;
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const unsigned int kCqLevel = 18;
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// List of ssim thresholds for speed settings 0-8 with all intra encoding mode.
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const double kSsimThreshold[] = { 83.4, 83.4, 83.4, 83.3, 83.3,
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83.0, 82.3, 81.1, 81.1 };
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typedef struct {
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const char *filename;
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unsigned int input_bit_depth;
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aom_img_fmt fmt;
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aom_bit_depth_t bit_depth;
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unsigned int profile;
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} TestVideoParam;
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std::ostream &operator<<(std::ostream &os, const TestVideoParam &test_arg) {
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return os << "TestVideoParam { filename:" << test_arg.filename
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<< " input_bit_depth:" << test_arg.input_bit_depth
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<< " fmt:" << test_arg.fmt << " bit_depth:" << test_arg.bit_depth
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<< " profile:" << test_arg.profile << " }";
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}
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const TestVideoParam kTestVectors[] = {
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{ "park_joy_90p_8_420.y4m", 8, AOM_IMG_FMT_I420, AOM_BITS_8, 0 },
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{ "park_joy_90p_8_422.y4m", 8, AOM_IMG_FMT_I422, AOM_BITS_8, 2 },
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{ "park_joy_90p_8_444.y4m", 8, AOM_IMG_FMT_I444, AOM_BITS_8, 1 },
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#if CONFIG_AV1_HIGHBITDEPTH
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{ "park_joy_90p_10_420.y4m", 10, AOM_IMG_FMT_I42016, AOM_BITS_10, 0 },
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{ "park_joy_90p_10_422.y4m", 10, AOM_IMG_FMT_I42216, AOM_BITS_10, 2 },
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{ "park_joy_90p_10_444.y4m", 10, AOM_IMG_FMT_I44416, AOM_BITS_10, 1 },
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{ "park_joy_90p_12_420.y4m", 12, AOM_IMG_FMT_I42016, AOM_BITS_12, 2 },
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{ "park_joy_90p_12_422.y4m", 12, AOM_IMG_FMT_I42216, AOM_BITS_12, 2 },
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{ "park_joy_90p_12_444.y4m", 12, AOM_IMG_FMT_I44416, AOM_BITS_12, 2 },
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#endif
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};
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// This class is used to check adherence to given ssim value.
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class EndToEndSSIMTest
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: public ::libaom_test::CodecTestWith3Params<libaom_test::TestMode,
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TestVideoParam, int>,
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public ::libaom_test::EncoderTest {
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protected:
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EndToEndSSIMTest()
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: EncoderTest(GET_PARAM(0)), encoding_mode_(GET_PARAM(1)),
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test_video_param_(GET_PARAM(2)), cpu_used_(GET_PARAM(3)), nframes_(0),
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ssim_(0.0) {}
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~EndToEndSSIMTest() override {}
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void SetUp() override { InitializeConfig(encoding_mode_); }
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void BeginPassHook(unsigned int) override {
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nframes_ = 0;
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ssim_ = 0.0;
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}
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void CalculateFrameLevelSSIM(const aom_image_t *img_src,
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const aom_image_t *img_enc,
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aom_bit_depth_t bit_depth,
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unsigned int input_bit_depth) override {
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double frame_ssim;
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double plane_ssim[MAX_MB_PLANE] = { 0.0, 0.0, 0.0 };
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int crop_widths[PLANE_TYPES];
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int crop_heights[PLANE_TYPES];
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crop_widths[PLANE_TYPE_Y] = img_src->d_w;
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crop_heights[PLANE_TYPE_Y] = img_src->d_h;
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// Width of UV planes calculated based on chroma_shift values.
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crop_widths[PLANE_TYPE_UV] =
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img_src->x_chroma_shift == 1 ? (img_src->w + 1) >> 1 : img_src->w;
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crop_heights[PLANE_TYPE_UV] =
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img_src->y_chroma_shift == 1 ? (img_src->h + 1) >> 1 : img_src->h;
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nframes_++;
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#if CONFIG_AV1_HIGHBITDEPTH
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uint8_t is_hbd = bit_depth > AOM_BITS_8;
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if (is_hbd) {
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// HBD ssim calculation.
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uint8_t shift = bit_depth - input_bit_depth;
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for (int i = AOM_PLANE_Y; i < MAX_MB_PLANE; ++i) {
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const int is_uv = i > AOM_PLANE_Y;
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plane_ssim[i] = aom_highbd_ssim2(
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CONVERT_TO_BYTEPTR(img_src->planes[i]),
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CONVERT_TO_BYTEPTR(img_enc->planes[i]),
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img_src->stride[is_uv] >> is_hbd, img_enc->stride[is_uv] >> is_hbd,
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crop_widths[is_uv], crop_heights[is_uv], input_bit_depth, shift);
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}
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frame_ssim = plane_ssim[AOM_PLANE_Y] * .8 +
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.1 * (plane_ssim[AOM_PLANE_U] + plane_ssim[AOM_PLANE_V]);
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// Accumulate to find sequence level ssim value.
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ssim_ += frame_ssim;
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return;
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}
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#else
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(void)bit_depth;
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(void)input_bit_depth;
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#endif // CONFIG_AV1_HIGHBITDEPTH
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// LBD ssim calculation.
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for (int i = AOM_PLANE_Y; i < MAX_MB_PLANE; ++i) {
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const int is_uv = i > AOM_PLANE_Y;
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plane_ssim[i] = aom_ssim2(img_src->planes[i], img_enc->planes[i],
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img_src->stride[is_uv], img_enc->stride[is_uv],
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crop_widths[is_uv], crop_heights[is_uv]);
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}
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frame_ssim = plane_ssim[AOM_PLANE_Y] * .8 +
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.1 * (plane_ssim[AOM_PLANE_U] + plane_ssim[AOM_PLANE_V]);
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// Accumulate to find sequence level ssim value.
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ssim_ += frame_ssim;
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}
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void PreEncodeFrameHook(::libaom_test::VideoSource *video,
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::libaom_test::Encoder *encoder) override {
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if (video->frame() == 0) {
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encoder->Control(AV1E_SET_FRAME_PARALLEL_DECODING, 1);
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encoder->Control(AV1E_SET_TILE_COLUMNS, 4);
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encoder->Control(AOME_SET_CPUUSED, cpu_used_);
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encoder->Control(AOME_SET_TUNING, AOM_TUNE_SSIM);
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encoder->Control(AOME_SET_CQ_LEVEL, kCqLevel);
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}
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}
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double GetAverageSsim() const {
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if (nframes_) return 100 * pow(ssim_ / nframes_, 8.0);
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return 0.0;
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}
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double GetSsimThreshold() { return kSsimThreshold[cpu_used_]; }
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void DoTest() {
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cfg_.g_profile = test_video_param_.profile;
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cfg_.g_input_bit_depth = test_video_param_.input_bit_depth;
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cfg_.g_bit_depth = test_video_param_.bit_depth;
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if (cfg_.g_bit_depth > 8) init_flags_ |= AOM_CODEC_USE_HIGHBITDEPTH;
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std::unique_ptr<libaom_test::VideoSource> video(
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new libaom_test::Y4mVideoSource(test_video_param_.filename, 0,
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kFrames));
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ASSERT_NE(video, nullptr);
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ASSERT_NO_FATAL_FAILURE(RunLoop(video.get()));
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const double ssim = GetAverageSsim();
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EXPECT_GT(ssim, GetSsimThreshold())
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<< "encoding mode = " << encoding_mode_ << ", cpu used = " << cpu_used_;
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}
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private:
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const libaom_test::TestMode encoding_mode_;
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const TestVideoParam test_video_param_;
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const int cpu_used_;
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unsigned int nframes_;
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double ssim_;
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};
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class EndToEndSSIMTestLarge : public EndToEndSSIMTest {};
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TEST_P(EndToEndSSIMTestLarge, EndtoEndSSIMTest) { DoTest(); }
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TEST_P(EndToEndSSIMTest, EndtoEndSSIMTest) { DoTest(); }
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AV1_INSTANTIATE_TEST_SUITE(EndToEndSSIMTestLarge,
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::testing::Values(::libaom_test::kAllIntra),
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::testing::ValuesIn(kTestVectors),
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::testing::Values(2, 4, 6, 8)); // cpu_used
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AV1_INSTANTIATE_TEST_SUITE(EndToEndSSIMTest,
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::testing::Values(::libaom_test::kAllIntra),
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::testing::Values(kTestVectors[0]), // 420
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::testing::Values(6)); // cpu_used
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} // namespace
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