test/av1_temporal_denoiser_test.cc

   1 /*
   2  * Copyright (c) 2016, 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 <math.h>
  13 #include <stdio.h>
  14 #include <stdlib.h>
  15 #include <tuple>
  16
  17 #include "config/av1_rtcd.h"
  18
  19 #include "test/acm_random.h"
  20 #include "test/util.h"
  21 #include "test/register_state_check.h"
  22
  23 #include "aom_scale/yv12config.h"
  24 #include "aom/aom_integer.h"
  25 #include "av1/common/reconinter.h"
  26 #include "av1/encoder/context_tree.h"
  27 #include "av1/encoder/av1_temporal_denoiser.h"
  28
  29 using libaom_test::ACMRandom;
  30
  31 namespace {
  32
  33 const int kNumPixels = 128 * 128;
  34
  35 typedef int (*Av1DenoiserFilterFunc)(const uint8_t *sig, int sig_stride,
  36                                      const uint8_t *mc_avg, int mc_avg_stride,
  37                                      uint8_t *avg, int avg_stride,
  38                                      int increase_denoising, BLOCK_SIZE bs,
  39                                      int motion_magnitude);
  40 typedef std::tuple<Av1DenoiserFilterFunc, BLOCK_SIZE> AV1DenoiserTestParam;
  41
  42 class AV1DenoiserTest
  43     : public ::testing::Test,
  44       public ::testing::WithParamInterface<AV1DenoiserTestParam> {
  45  public:
  46   virtual ~AV1DenoiserTest() {}
  47
  48   virtual void SetUp() { bs_ = GET_PARAM(1); }
  49
  50   virtual void TearDown() {}
  51
  52  protected:
  53   BLOCK_SIZE bs_;
  54 };
  55
  56 TEST_P(AV1DenoiserTest, BitexactCheck) {
  57   ACMRandom rnd(ACMRandom::DeterministicSeed());
  58   const int count_test_block = 4000;
  59
  60   // Allocate the space for input and output,
  61   // where sig_block is the block to be denoised,
  62   // mc_avg_block is the denoised reference block,
  63   // avg_block_c is the denoised result from C code,
  64   // avg_block_sse2 is the denoised result from SSE2 code.
  65   DECLARE_ALIGNED(16, uint8_t, sig_block[kNumPixels]);
  66   DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
  67   DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
  68   DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
  69
  70   for (int i = 0; i < count_test_block; ++i) {
  71     // Generate random motion magnitude, 20% of which exceed the threshold.
  72     const int motion_magnitude_random =
  73         rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
  74
  75     // Initialize a test block with random number in range [0, 255].
  76     for (int j = 0; j < kNumPixels; ++j) {
  77       int temp = 0;
  78       sig_block[j] = rnd.Rand8();
  79       // The pixels in mc_avg_block are generated by adding a random
  80       // number in range [-19, 19] to corresponding pixels in sig_block.
  81       temp =
  82           sig_block[j] + ((rnd.Rand8() % 2 == 0) ? -1 : 1) * (rnd.Rand8() % 20);
  83       // Clip.
  84       mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
  85     }
  86
  87     API_REGISTER_STATE_CHECK(
  88         av1_denoiser_filter_c(sig_block, 128, mc_avg_block, 128, avg_block_c,
  89                               128, 0, bs_, motion_magnitude_random));
  90
  91     API_REGISTER_STATE_CHECK(GET_PARAM(0)(sig_block, 128, mc_avg_block, 128,
  92                                           avg_block_sse2, 128, 0, bs_,
  93                                           motion_magnitude_random));
  94
  95     // Test bitexactness.
  96     for (int h = 0; h < block_size_high[bs_]; ++h) {
  97       for (int w = 0; w < block_size_wide[bs_]; ++w) {
  98         EXPECT_EQ(avg_block_c[h * 128 + w], avg_block_sse2[h * 128 + w]);
  99       }
 100     }
 101   }
 102 }
 103
 104 using std::make_tuple;
 105
 106 // Test for all block size.
 107 #if HAVE_SSE2
 108 INSTANTIATE_TEST_SUITE_P(
 109     SSE2, AV1DenoiserTest,
 110     ::testing::Values(make_tuple(&av1_denoiser_filter_sse2, BLOCK_8X8),
 111                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_8X16),
 112                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_16X8),
 113                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_16X16),
 114                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_16X32),
 115                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_32X16),
 116                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_32X32),
 117                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_32X64),
 118                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_64X32),
 119                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_64X64),
 120                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_128X64),
 121                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_64X128),
 122                       make_tuple(&av1_denoiser_filter_sse2, BLOCK_128X128)));
 123 #endif  // HAVE_SSE2
 124
 125 #if HAVE_NEON
 126 INSTANTIATE_TEST_SUITE_P(
 127     NEON, AV1DenoiserTest,
 128     ::testing::Values(make_tuple(&av1_denoiser_filter_neon, BLOCK_8X8),
 129                       make_tuple(&av1_denoiser_filter_neon, BLOCK_8X16),
 130                       make_tuple(&av1_denoiser_filter_neon, BLOCK_16X8),
 131                       make_tuple(&av1_denoiser_filter_neon, BLOCK_16X16),
 132                       make_tuple(&av1_denoiser_filter_neon, BLOCK_16X32),
 133                       make_tuple(&av1_denoiser_filter_neon, BLOCK_32X16),
 134                       make_tuple(&av1_denoiser_filter_neon, BLOCK_32X32),
 135                       make_tuple(&av1_denoiser_filter_neon, BLOCK_32X64),
 136                       make_tuple(&av1_denoiser_filter_neon, BLOCK_64X32),
 137                       make_tuple(&av1_denoiser_filter_neon, BLOCK_64X64),
 138                       make_tuple(&av1_denoiser_filter_neon, BLOCK_128X64),
 139                       make_tuple(&av1_denoiser_filter_neon, BLOCK_64X128),
 140                       make_tuple(&av1_denoiser_filter_neon, BLOCK_128X128)));
 141 #endif
 142 }  // namespace