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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.
*/
#ifndef AOM_TEST_UTIL_H_
#define AOM_TEST_UTIL_H_
#include <math.h>
#include <stdio.h>
#include <string.h>
#include "gtest/gtest.h"
#include "aom/aom_image.h"
#include "aom_ports/aom_timer.h"
// Macros
#define GET_PARAM(k) std::get<k>(GetParam())
inline int is_extension_y4m(const char *filename) {
const char *dot = strrchr(filename, '.');
if (!dot || dot == filename) return 0;
return !strcmp(dot, ".y4m");
}
inline double compute_psnr(const aom_image_t *img1, const aom_image_t *img2) {
assert((img1->fmt == img2->fmt) && (img1->d_w == img2->d_w) &&
(img1->d_h == img2->d_h));
const unsigned int width_y = img1->d_w;
const unsigned int height_y = img1->d_h;
unsigned int i, j;
int64_t sqrerr = 0;
for (i = 0; i < height_y; ++i)
for (j = 0; j < width_y; ++j) {
int64_t d = img1->planes[AOM_PLANE_Y][i * img1->stride[AOM_PLANE_Y] + j] -
img2->planes[AOM_PLANE_Y][i * img2->stride[AOM_PLANE_Y] + j];
sqrerr += d * d;
}
double mse = static_cast<double>(sqrerr) / (width_y * height_y);
double psnr = 100.0;
if (mse > 0.0) {
psnr = 10 * log10(255.0 * 255.0 / mse);
}
return psnr;
}
static inline double get_time_mark(aom_usec_timer *t) {
aom_usec_timer_mark(t);
return static_cast<double>(aom_usec_timer_elapsed(t));
}
#endif // AOM_TEST_UTIL_H_