2 * Copyright (c) 2012 The WebM project authors. All Rights Reserved.
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
11 #ifndef VPX_TEST_UTIL_H_
12 #define VPX_TEST_UTIL_H_
18 #include "third_party/googletest/src/include/gtest/gtest.h"
19 #include "vpx/vpx_image.h"
22 #define GET_PARAM(k) std::get<k>(GetParam())
24 inline double compute_psnr(const vpx_image_t *img1, const vpx_image_t *img2) {
25 assert((img1->fmt == img2->fmt) && (img1->d_w == img2->d_w) &&
26 (img1->d_h == img2->d_h));
28 const unsigned int width_y = img1->d_w;
29 const unsigned int height_y = img1->d_h;
33 for (i = 0; i < height_y; ++i) {
34 for (j = 0; j < width_y; ++j) {
35 int64_t d = img1->planes[VPX_PLANE_Y][i * img1->stride[VPX_PLANE_Y] + j] -
36 img2->planes[VPX_PLANE_Y][i * img2->stride[VPX_PLANE_Y] + j];
40 double mse = static_cast<double>(sqrerr) / (width_y * height_y);
43 psnr = 10 * log10(255.0 * 255.0 / mse);
48 #endif // VPX_TEST_UTIL_H_