/* * Copyright (c) 2013 The WebM project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */#include <cstdio>#include <cstdlib>#include <string>#include <vector>#include "third_party/googletest/src/include/gtest/gtest.h"#include "test/codec_factory.h"#include "test/ivf_video_source.h"namespace {// In a real use the 'decrypt_state' parameter will be a pointer to a struct// with whatever internal state the decryptor uses. For testing we'll just// xor with a constant key, and decrypt_state will point to the start of// the original buffer.const uint8_t test_key[16] = { 0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78, 0x89, 0x9a, 0xab, 0xbc, 0xcd, 0xde, 0xef, 0xf0 };void encrypt_buffer(const uint8_t *src, uint8_t *dst, size_t size, ptrdiff_t offset) { for (size_t i = 0; i < size; ++i) { dst[i] = src[i] ^ test_key[(offset + i) & 15]; }}void test_decrypt_cb(void *decrypt_state, const uint8_t *input, uint8_t *output, int count) { encrypt_buffer(input, output, count, input - reinterpret_cast<uint8_t *>(decrypt_state));}} // namespacenamespace libvpx_test {TEST(TestDecrypt, DecryptWorksVp8) { libvpx_test::IVFVideoSource video("vp80-00-comprehensive-001.ivf"); video.Init(); vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t(); VP8Decoder decoder(dec_cfg, 0); video.Begin(); // no decryption vpx_codec_err_t res = decoder.DecodeFrame(video.cxdata(), video.frame_size()); ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError(); // decrypt frame video.Next(); std::vector<uint8_t> encrypted(video.frame_size()); encrypt_buffer(video.cxdata(), &encrypted[0], video.frame_size(), 0); vpx_decrypt_init di = { test_decrypt_cb, &encrypted[0] }; decoder.Control(VPXD_SET_DECRYPTOR, &di); res = decoder.DecodeFrame(&encrypted[0], encrypted.size()); ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();}} // namespace libvpx_test
/*
* Copyright (c) 2013 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include <cstdio>
#include <cstdlib>
#include <string>
#include <vector>
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "test/codec_factory.h"
#include "test/ivf_video_source.h"
namespace {
// In a real use the 'decrypt_state' parameter will be a pointer to a struct
// with whatever internal state the decryptor uses. For testing we'll just
// xor with a constant key, and decrypt_state will point to the start of
// the original buffer.
const uint8_t test_key[16] = { 0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78,
0x89, 0x9a, 0xab, 0xbc, 0xcd, 0xde, 0xef, 0xf0 };
void encrypt_buffer(const uint8_t *src, uint8_t *dst, size_t size,
ptrdiff_t offset) {
for (size_t i = 0; i < size; ++i) {
dst[i] = src[i] ^ test_key[(offset + i) & 15];
}
}
void test_decrypt_cb(void *decrypt_state, const uint8_t *input, uint8_t *output,
int count) {
encrypt_buffer(input, output, count,
input - reinterpret_cast<uint8_t *>(decrypt_state));
}
} // namespace
namespace libvpx_test {
TEST(TestDecrypt, DecryptWorksVp8) {
libvpx_test::IVFVideoSource video("vp80-00-comprehensive-001.ivf");
video.Init();
vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();
VP8Decoder decoder(dec_cfg, 0);
video.Begin();
// no decryption
vpx_codec_err_t res = decoder.DecodeFrame(video.cxdata(), video.frame_size());
ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
// decrypt frame
video.Next();
std::vector<uint8_t> encrypted(video.frame_size());
encrypt_buffer(video.cxdata(), &encrypted[0], video.frame_size(), 0);
vpx_decrypt_init di = { test_decrypt_cb, &encrypted[0] };
decoder.Control(VPXD_SET_DECRYPTOR, &di);
res = decoder.DecodeFrame(&encrypted[0], encrypted.size());
ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
}
} // namespace libvpx_test