diff options
Diffstat (limited to '')
-rw-r--r-- | third_party/aom/test/md5_helper.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/third_party/aom/test/md5_helper.h b/third_party/aom/test/md5_helper.h new file mode 100644 index 0000000000..69f1ae76b0 --- /dev/null +++ b/third_party/aom/test/md5_helper.h @@ -0,0 +1,76 @@ +/* + * 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_MD5_HELPER_H_ +#define AOM_TEST_MD5_HELPER_H_ + +#include "aom/aom_decoder.h" +#include "common/md5_utils.h" + +namespace libaom_test { +class MD5 { + public: + MD5() { MD5Init(&md5_); } + + void Add(const aom_image_t *img) { + for (int plane = 0; plane < 3; ++plane) { + const uint8_t *buf = img->planes[plane]; + // Calculate the width and height to do the md5 check. For the chroma + // plane, we never want to round down and thus skip a pixel so if + // we are shifting by 1 (chroma_shift) we add 1 before doing the shift. + // This works only for chroma_shift of 0 and 1. + const int bytes_per_sample = + (img->fmt & AOM_IMG_FMT_HIGHBITDEPTH) ? 2 : 1; + const int h = + plane ? (img->d_h + img->y_chroma_shift) >> img->y_chroma_shift + : img->d_h; + const int w = + (plane ? (img->d_w + img->x_chroma_shift) >> img->x_chroma_shift + : img->d_w) * + bytes_per_sample; + + for (int y = 0; y < h; ++y) { + MD5Update(&md5_, buf, w); + buf += img->stride[plane]; + } + } + } + + void Add(const uint8_t *data, size_t size) { + MD5Update(&md5_, data, static_cast<uint32_t>(size)); + } + + const char *Get() { + static const char hex[16] = { + '0', '1', '2', '3', '4', '5', '6', '7', + '8', '9', 'a', 'b', 'c', 'd', 'e', 'f', + }; + uint8_t tmp[16]; + MD5Context ctx_tmp = md5_; + + MD5Final(tmp, &ctx_tmp); + for (int i = 0; i < 16; i++) { + res_[i * 2 + 0] = hex[tmp[i] >> 4]; + res_[i * 2 + 1] = hex[tmp[i] & 0xf]; + } + res_[32] = 0; + + return res_; + } + + protected: + char res_[33]; + MD5Context md5_; +}; + +} // namespace libaom_test + +#endif // AOM_TEST_MD5_HELPER_H_ |