2 * Copyright (c) 2013 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.
15 #include "third_party/googletest/src/include/gtest/gtest.h"
16 #include "test/codec_factory.h"
17 #include "test/ivf_video_source.h"
20 // In a real use the 'decrypt_state' parameter will be a pointer to a struct
21 // with whatever internal state the decryptor uses. For testing we'll just
22 // xor with a constant key, and decrypt_state will point to the start of
23 // the original buffer.
24 const uint8_t test_key[16] = {
25 0x01, 0x12, 0x23, 0x34, 0x45, 0x56, 0x67, 0x78,
26 0x89, 0x9a, 0xab, 0xbc, 0xcd, 0xde, 0xef, 0xf0
29 void encrypt_buffer(const uint8_t *src, uint8_t *dst, size_t size,
31 for (size_t i = 0; i < size; ++i) {
32 dst[i] = src[i] ^ test_key[(offset + i) & 15];
36 void test_decrypt_cb(void *decrypt_state, const uint8_t *input,
37 uint8_t *output, int count) {
38 encrypt_buffer(input, output, count,
39 input - reinterpret_cast<uint8_t *>(decrypt_state));
44 namespace libvpx_test {
46 TEST(TestDecrypt, DecryptWorksVp8) {
47 libvpx_test::IVFVideoSource video("vp80-00-comprehensive-001.ivf");
50 vpx_codec_dec_cfg_t dec_cfg = vpx_codec_dec_cfg_t();
51 VP8Decoder decoder(dec_cfg, 0);
56 vpx_codec_err_t res = decoder.DecodeFrame(video.cxdata(), video.frame_size());
57 ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
62 std::vector<uint8_t> encrypted(video.frame_size());
63 encrypt_buffer(video.cxdata(), &encrypted[0], video.frame_size(), 0);
64 vpx_decrypt_init di = { test_decrypt_cb, &encrypted[0] };
65 decoder.Control(VPXD_SET_DECRYPTOR, &di);
67 res = decoder.DecodeFrame(&encrypted[0], encrypted.size());
68 ASSERT_EQ(VPX_CODEC_OK, res) << decoder.DecodeError();
71 } // namespace libvpx_test