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/*
* 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 "config/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 ::testing::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
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