Import aom library

This is the reference implementation for the Alliance for Open Media's av1 video code.

The commit used was 4d668d7feb1f8abd809d1bca0418570a7f142a36.

1 files changed, 237 insertions, 0 deletions

diff --git a/third_party/aom/test/hbd_metrics_test.cc b/third_party/aom/test/hbd_metrics_test.cc
new file mode 100644
index 000000000..4def53b21
--- /dev/null
+++ b/third_party/aom/test/hbd_metrics_test.cc
@@ -0,0 +1,237 @@
+/*
+ * Copyright (c) 2016, 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 <math.h>
+#include <stdlib.h>
+#include <new>
+
+#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
+#include "test/acm_random.h"
+#include "test/util.h"
+#include "./aom_config.h"
+#include "aom_dsp/psnr.h"
+#include "aom_dsp/ssim.h"
+#include "aom_ports/mem.h"
+#include "aom_ports/msvc.h"
+#include "aom_scale/yv12config.h"
+
+using libaom_test::ACMRandom;
+
+namespace {
+
+typedef double (*LBDMetricFunc)(const YV12_BUFFER_CONFIG *source,
+                                const YV12_BUFFER_CONFIG *dest);
+typedef double (*HBDMetricFunc)(const YV12_BUFFER_CONFIG *source,
+                                const YV12_BUFFER_CONFIG *dest, uint32_t in_bd,
+                                uint32_t bd);
+
+double compute_hbd_psnr(const YV12_BUFFER_CONFIG *source,
+                        const YV12_BUFFER_CONFIG *dest, uint32_t in_bd,
+                        uint32_t bd) {
+  PSNR_STATS psnr;
+  aom_calc_highbd_psnr(source, dest, &psnr, bd, in_bd);
+  return psnr.psnr[0];
+}
+
+double compute_psnr(const YV12_BUFFER_CONFIG *source,
+                    const YV12_BUFFER_CONFIG *dest) {
+  PSNR_STATS psnr;
+  aom_calc_psnr(source, dest, &psnr);
+  return psnr.psnr[0];
+}
+
+double compute_hbd_psnrhvs(const YV12_BUFFER_CONFIG *source,
+                           const YV12_BUFFER_CONFIG *dest, uint32_t in_bd,
+                           uint32_t bd) {
+  double tempy, tempu, tempv;
+  return aom_psnrhvs(source, dest, &tempy, &tempu, &tempv, bd, in_bd);
+}
+
+double compute_psnrhvs(const YV12_BUFFER_CONFIG *source,
+                       const YV12_BUFFER_CONFIG *dest) {
+  double tempy, tempu, tempv;
+  return aom_psnrhvs(source, dest, &tempy, &tempu, &tempv, 8, 8);
+}
+
+double compute_hbd_fastssim(const YV12_BUFFER_CONFIG *source,
+                            const YV12_BUFFER_CONFIG *dest, uint32_t in_bd,
+                            uint32_t bd) {
+  double tempy, tempu, tempv;
+  return aom_calc_fastssim(source, dest, &tempy, &tempu, &tempv, bd, in_bd);
+}
+
+double compute_fastssim(const YV12_BUFFER_CONFIG *source,
+                        const YV12_BUFFER_CONFIG *dest) {
+  double tempy, tempu, tempv;
+  return aom_calc_fastssim(source, dest, &tempy, &tempu, &tempv, 8, 8);
+}
+
+double compute_hbd_aomssim(const YV12_BUFFER_CONFIG *source,
+                           const YV12_BUFFER_CONFIG *dest, uint32_t in_bd,
+                           uint32_t bd) {
+  double ssim, weight;
+  ssim = aom_highbd_calc_ssim(source, dest, &weight, bd, in_bd);
+  return 100 * pow(ssim / weight, 8.0);
+}
+
+double compute_aomssim(const YV12_BUFFER_CONFIG *source,
+                       const YV12_BUFFER_CONFIG *dest) {
+  double ssim, weight;
+  ssim = aom_calc_ssim(source, dest, &weight);
+  return 100 * pow(ssim / weight, 8.0);
+}
+
+class HBDMetricsTestBase {
+ public:
+  virtual ~HBDMetricsTestBase() {}
+
+ protected:
+  void RunAccuracyCheck() {
+    const int width = 1920;
+    const int height = 1080;
+    size_t i = 0;
+    const uint8_t kPixFiller = 128;
+    YV12_BUFFER_CONFIG lbd_src, lbd_dst;
+    YV12_BUFFER_CONFIG hbd_src, hbd_dst;
+    ACMRandom rnd(ACMRandom::DeterministicSeed());
+    double lbd_db, hbd_db;
+
+    memset(&lbd_src, 0, sizeof(lbd_src));
+    memset(&lbd_dst, 0, sizeof(lbd_dst));
+    memset(&hbd_src, 0, sizeof(hbd_src));
+    memset(&hbd_dst, 0, sizeof(hbd_dst));
+
+    aom_alloc_frame_buffer(&lbd_src, width, height, 1, 1, 0, 32, 16);
+    aom_alloc_frame_buffer(&lbd_dst, width, height, 1, 1, 0, 32, 16);
+    aom_alloc_frame_buffer(&hbd_src, width, height, 1, 1, 1, 32, 16);
+    aom_alloc_frame_buffer(&hbd_dst, width, height, 1, 1, 1, 32, 16);
+
+    memset(lbd_src.buffer_alloc, kPixFiller, lbd_src.buffer_alloc_sz);
+    while (i < lbd_src.buffer_alloc_sz) {
+      uint16_t spel, dpel;
+      spel = lbd_src.buffer_alloc[i];
+      // Create some distortion for dst buffer.
+      dpel = rnd.Rand8();
+      lbd_dst.buffer_alloc[i] = (uint8_t)dpel;
+      ((uint16_t *)(hbd_src.buffer_alloc))[i] = spel << (bit_depth_ - 8);
+      ((uint16_t *)(hbd_dst.buffer_alloc))[i] = dpel << (bit_depth_ - 8);
+      i++;
+    }
+
+    lbd_db = lbd_metric_(&lbd_src, &lbd_dst);
+    hbd_db = hbd_metric_(&hbd_src, &hbd_dst, input_bit_depth_, bit_depth_);
+    EXPECT_LE(fabs(lbd_db - hbd_db), threshold_);
+
+    i = 0;
+    while (i < lbd_src.buffer_alloc_sz) {
+      uint16_t dpel;
+      // Create some small distortion for dst buffer.
+      dpel = 120 + (rnd.Rand8() >> 4);
+      lbd_dst.buffer_alloc[i] = (uint8_t)dpel;
+      ((uint16_t *)(hbd_dst.buffer_alloc))[i] = dpel << (bit_depth_ - 8);
+      i++;
+    }
+
+    lbd_db = lbd_metric_(&lbd_src, &lbd_dst);
+    hbd_db = hbd_metric_(&hbd_src, &hbd_dst, input_bit_depth_, bit_depth_);
+    EXPECT_LE(fabs(lbd_db - hbd_db), threshold_);
+
+    i = 0;
+    while (i < lbd_src.buffer_alloc_sz) {
+      uint16_t dpel;
+      // Create some small distortion for dst buffer.
+      dpel = 126 + (rnd.Rand8() >> 6);
+      lbd_dst.buffer_alloc[i] = (uint8_t)dpel;
+      ((uint16_t *)(hbd_dst.buffer_alloc))[i] = dpel << (bit_depth_ - 8);
+      i++;
+    }
+
+    lbd_db = lbd_metric_(&lbd_src, &lbd_dst);
+    hbd_db = hbd_metric_(&hbd_src, &hbd_dst, input_bit_depth_, bit_depth_);
+    EXPECT_LE(fabs(lbd_db - hbd_db), threshold_);
+
+    aom_free_frame_buffer(&lbd_src);
+    aom_free_frame_buffer(&lbd_dst);
+    aom_free_frame_buffer(&hbd_src);
+    aom_free_frame_buffer(&hbd_dst);
+  }
+
+  int input_bit_depth_;
+  int bit_depth_;
+  double threshold_;
+  LBDMetricFunc lbd_metric_;
+  HBDMetricFunc hbd_metric_;
+};
+
+typedef std::tr1::tuple<LBDMetricFunc, HBDMetricFunc, int, int, double>
+    MetricTestTParam;
+class HBDMetricsTest : public HBDMetricsTestBase,
+                       public ::testing::TestWithParam<MetricTestTParam> {
+ public:
+  virtual void SetUp() {
+    lbd_metric_ = GET_PARAM(0);
+    hbd_metric_ = GET_PARAM(1);
+    input_bit_depth_ = GET_PARAM(2);
+    bit_depth_ = GET_PARAM(3);
+    threshold_ = GET_PARAM(4);
+  }
+  virtual void TearDown() {}
+};
+
+TEST_P(HBDMetricsTest, RunAccuracyCheck) { RunAccuracyCheck(); }
+
+// Allow small variation due to floating point operations.
+static const double kSsim_thresh = 0.001;
+// Allow some additional errors accumulated in floating point operations.
+static const double kFSsim_thresh = 0.03;
+// Allow some extra variation due to rounding error accumulated in dct.
+static const double kPhvs_thresh = 0.3;
+
+INSTANTIATE_TEST_CASE_P(
+    AOMSSIM, HBDMetricsTest,
+    ::testing::Values(MetricTestTParam(&compute_aomssim, &compute_hbd_aomssim,
+                                       8, 10, kSsim_thresh),
+                      MetricTestTParam(&compute_aomssim, &compute_hbd_aomssim,
+                                       10, 10, kPhvs_thresh),
+                      MetricTestTParam(&compute_aomssim, &compute_hbd_aomssim,
+                                       8, 12, kSsim_thresh),
+                      MetricTestTParam(&compute_aomssim, &compute_hbd_aomssim,
+                                       12, 12, kPhvs_thresh)));
+INSTANTIATE_TEST_CASE_P(
+    FASTSSIM, HBDMetricsTest,
+    ::testing::Values(MetricTestTParam(&compute_fastssim, &compute_hbd_fastssim,
+                                       8, 10, kFSsim_thresh),
+                      MetricTestTParam(&compute_fastssim, &compute_hbd_fastssim,
+                                       10, 10, kFSsim_thresh),
+                      MetricTestTParam(&compute_fastssim, &compute_hbd_fastssim,
+                                       8, 12, kFSsim_thresh),
+                      MetricTestTParam(&compute_fastssim, &compute_hbd_fastssim,
+                                       12, 12, kFSsim_thresh)));
+INSTANTIATE_TEST_CASE_P(
+    PSNRHVS, HBDMetricsTest,
+    ::testing::Values(MetricTestTParam(&compute_psnrhvs, &compute_hbd_psnrhvs,
+                                       8, 10, kPhvs_thresh),
+                      MetricTestTParam(&compute_psnrhvs, &compute_hbd_psnrhvs,
+                                       10, 10, kPhvs_thresh),
+                      MetricTestTParam(&compute_psnrhvs, &compute_hbd_psnrhvs,
+                                       8, 12, kPhvs_thresh),
+                      MetricTestTParam(&compute_psnrhvs, &compute_hbd_psnrhvs,
+                                       12, 12, kPhvs_thresh)));
+INSTANTIATE_TEST_CASE_P(
+    PSNR, HBDMetricsTest,
+    ::testing::Values(
+        MetricTestTParam(&compute_psnr, &compute_hbd_psnr, 8, 10, kPhvs_thresh),
+        MetricTestTParam(&compute_psnr, &compute_hbd_psnr, 10, 10,
+                         kPhvs_thresh),
+        MetricTestTParam(&compute_psnr, &compute_hbd_psnr, 8, 12, kPhvs_thresh),
+        MetricTestTParam(&compute_psnr, &compute_hbd_psnr, 12, 12,
+                         kPhvs_thresh)));
+}  // namespace