db49a22cfa
googletest imports tuple into testing to allow for compatibility across c++ versions where tuple may be in std::tr1 or std. fixes deprecation warnings under visual studio 2017 Change-Id: Id78b372d5478b12d8c8f63fd3f2166fec25aa8be
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/*
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* Copyright (c) 2012 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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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/include/gtest/gtest.h"
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#include "vpx/vpx_image.h"
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// Macros
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#define GET_PARAM(k) ::testing::get<k>(GetParam())
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inline double compute_psnr(const vpx_image_t *img1, const vpx_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[VPX_PLANE_Y][i * img1->stride[VPX_PLANE_Y] + j] -
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img2->planes[VPX_PLANE_Y][i * img2->stride[VPX_PLANE_Y] + j];
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sqrerr += d * d;
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}
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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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