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 TEST_MD5_HELPER_H_
12 #define TEST_MD5_HELPER_H_
14 #include "./md5_utils.h"
15 #include "vpx/vpx_decoder.h"
17 namespace libvpx_test {
20 MD5() { MD5Init(&md5_); }
22 void Add(const vpx_image_t *img) {
23 for (int plane = 0; plane < 3; ++plane) {
24 const uint8_t *buf = img->planes[plane];
25 // Calculate the width and height to do the md5 check. For the chroma
26 // plane, we never want to round down and thus skip a pixel so if
27 // we are shifting by 1 (chroma_shift) we add 1 before doing the shift.
28 // This works only for chroma_shift of 0 and 1.
29 const int bytes_per_sample =
30 (img->fmt & VPX_IMG_FMT_HIGHBITDEPTH) ? 2 : 1;
32 plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift
35 (plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift
39 for (int y = 0; y < h; ++y) {
40 MD5Update(&md5_, buf, w);
41 buf += img->stride[plane];
46 void Add(const uint8_t *data, size_t size) {
47 MD5Update(&md5_, data, static_cast<uint32_t>(size));
50 const char *Get(void) {
51 static const char hex[16] = {
52 '0', '1', '2', '3', '4', '5', '6', '7',
53 '8', '9', 'a', 'b', 'c', 'd', 'e', 'f',
56 MD5Context ctx_tmp = md5_;
58 MD5Final(tmp, &ctx_tmp);
59 for (int i = 0; i < 16; i++) {
60 res_[i * 2 + 0] = hex[tmp[i] >> 4];
61 res_[i * 2 + 1] = hex[tmp[i] & 0xf];
73 } // namespace libvpx_test
75 #endif // TEST_MD5_HELPER_H_