granicus.if.org Git - libvpx/blob - test/vp9_denoiser_test.cc

   1 /*
   2  *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11 #include <math.h>
  12 #include <stdlib.h>
  13 #include <string.h>
  14
  15 #include "third_party/googletest/src/include/gtest/gtest.h"
  16 #include "test/acm_random.h"
  17 #include "test/clear_system_state.h"
  18 #include "test/register_state_check.h"
  19 #include "test/util.h"
  20
  21 #include "vpx_scale/yv12config.h"
  22 #include "vpx/vpx_integer.h"
  23 #include "vp9/common/vp9_reconinter.h"
  24 #include "vp9/encoder/vp9_context_tree.h"
  25 #include "vp9/encoder/vp9_denoiser.h"
  26
  27 using libvpx_test::ACMRandom;
  28
  29 namespace {
  30
  31 const int kNumPixels = 64 * 64;
  32
  33 typedef int (*Vp9DenoiserFilterFunc)(const uint8_t *sig, int sig_stride,
  34                                      const uint8_t *mc_avg, int mc_avg_stride,
  35                                      uint8_t *avg, int avg_stride,
  36                                      int increase_denoising, BLOCK_SIZE bs,
  37                                      int motion_magnitude);
  38 typedef std::tr1::tuple<Vp9DenoiserFilterFunc, BLOCK_SIZE> VP9DenoiserTestParam;
  39
  40 class VP9DenoiserTest
  41     : public ::testing::Test,
  42       public ::testing::WithParamInterface<VP9DenoiserTestParam> {
  43  public:
  44   virtual ~VP9DenoiserTest() {}
  45
  46   virtual void SetUp() { bs_ = GET_PARAM(1); }
  47
  48   virtual void TearDown() { libvpx_test::ClearSystemState(); }
  49
  50  protected:
  51   BLOCK_SIZE bs_;
  52 };
  53
  54 TEST_P(VP9DenoiserTest, BitexactCheck) {
  55   ACMRandom rnd(ACMRandom::DeterministicSeed());
  56   const int count_test_block = 4000;
  57
  58   // Allocate the space for input and output,
  59   // where sig_block is the block to be denoised,
  60   // mc_avg_block is the denoised reference block,
  61   // avg_block_c is the denoised result from C code,
  62   // avg_block_sse2 is the denoised result from SSE2 code.
  63   DECLARE_ALIGNED(16, uint8_t, sig_block[kNumPixels]);
  64   DECLARE_ALIGNED(16, uint8_t, mc_avg_block[kNumPixels]);
  65   DECLARE_ALIGNED(16, uint8_t, avg_block_c[kNumPixels]);
  66   DECLARE_ALIGNED(16, uint8_t, avg_block_sse2[kNumPixels]);
  67
  68   for (int i = 0; i < count_test_block; ++i) {
  69     // Generate random motion magnitude, 20% of which exceed the threshold.
  70     const int motion_magnitude_random =
  71         rnd.Rand8() % static_cast<int>(MOTION_MAGNITUDE_THRESHOLD * 1.2);
  72
  73     // Initialize a test block with random number in range [0, 255].
  74     for (int j = 0; j < kNumPixels; ++j) {
  75       int temp = 0;
  76       sig_block[j] = rnd.Rand8();
  77       // The pixels in mc_avg_block are generated by adding a random
  78       // number in range [-19, 19] to corresponding pixels in sig_block.
  79       temp =
  80           sig_block[j] + ((rnd.Rand8() % 2 == 0) ? -1 : 1) * (rnd.Rand8() % 20);
  81       // Clip.
  82       mc_avg_block[j] = (temp < 0) ? 0 : ((temp > 255) ? 255 : temp);
  83     }
  84
  85     ASM_REGISTER_STATE_CHECK(vp9_denoiser_filter_c(sig_block, 64, mc_avg_block,
  86                                                    64, avg_block_c, 64, 0, bs_,
  87                                                    motion_magnitude_random));
  88
  89     ASM_REGISTER_STATE_CHECK(GET_PARAM(0)(sig_block, 64, mc_avg_block, 64,
  90                                           avg_block_sse2, 64, 0, bs_,
  91                                           motion_magnitude_random));
  92
  93     // Test bitexactness.
  94     for (int h = 0; h < (4 << b_height_log2_lookup[bs_]); ++h) {
  95       for (int w = 0; w < (4 << b_width_log2_lookup[bs_]); ++w) {
  96         EXPECT_EQ(avg_block_c[h * 64 + w], avg_block_sse2[h * 64 + w]);
  97       }
  98     }
  99   }
 100 }
 101
 102 using std::tr1::make_tuple;
 103
 104 // Test for all block size.
 105 #if HAVE_SSE2
 106 INSTANTIATE_TEST_CASE_P(
 107     SSE2, VP9DenoiserTest,
 108     ::testing::Values(make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X8),
 109                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_8X16),
 110                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X8),
 111                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X16),
 112                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_16X32),
 113                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X16),
 114                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X32),
 115                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_32X64),
 116                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X32),
 117                       make_tuple(&vp9_denoiser_filter_sse2, BLOCK_64X64)));
 118 #endif  // HAVE_SSE2
 119
 120 #if HAVE_NEON
 121 INSTANTIATE_TEST_CASE_P(
 122     NEON, VP9DenoiserTest,
 123     ::testing::Values(make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X8),
 124                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_8X16),
 125                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X8),
 126                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X16),
 127                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_16X32),
 128                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X16),
 129                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X32),
 130                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_32X64),
 131                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X32),
 132                       make_tuple(&vp9_denoiser_filter_neon, BLOCK_64X64)));
 133 #endif
 134 }  // namespace