зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.5 KiB
C++
47 строки
1.5 KiB
C++
/*
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* Copyright (c) 2016, Alliance for Open Media. All rights reserved
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*
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* This source code is subject to the terms of the BSD 2 Clause License and
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* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
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* was not distributed with this source code in the LICENSE file, you can
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* obtain it at www.aomedia.org/license/software. If the Alliance for Open
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* Media Patent License 1.0 was not distributed with this source code in the
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* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
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*/
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#ifndef TEST_UTIL_H_
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#define TEST_UTIL_H_
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#include <stdio.h>
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#include <math.h>
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#include "third_party/googletest/src/googletest/include/gtest/gtest.h"
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#include "aom/aom_image.h"
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// Macros
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#define GET_PARAM(k) std::tr1::get<k>(GetParam())
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inline double compute_psnr(const aom_image_t *img1, const aom_image_t *img2) {
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assert((img1->fmt == img2->fmt) && (img1->d_w == img2->d_w) &&
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(img1->d_h == img2->d_h));
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const unsigned int width_y = img1->d_w;
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const unsigned int height_y = img1->d_h;
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unsigned int i, j;
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int64_t sqrerr = 0;
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for (i = 0; i < height_y; ++i)
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for (j = 0; j < width_y; ++j) {
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int64_t d = img1->planes[AOM_PLANE_Y][i * img1->stride[AOM_PLANE_Y] + j] -
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img2->planes[AOM_PLANE_Y][i * img2->stride[AOM_PLANE_Y] + j];
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sqrerr += d * d;
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}
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double mse = static_cast<double>(sqrerr) / (width_y * height_y);
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double psnr = 100.0;
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if (mse > 0.0) {
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psnr = 10 * log10(255.0 * 255.0 / mse);
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}
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return psnr;
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}
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#endif // TEST_UTIL_H_
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