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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "media/base/test_data_util.h"
#include <stdint.h>
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/numerics/safe_conversions.h"
#include "base/path_service.h"
#include "media/base/decoder_buffer.h"
namespace media {
namespace {
// Key used to encrypt test files.
const uint8_t kSecretKey[] = {0xeb, 0xdd, 0x62, 0xf1, 0x68, 0x14, 0xd2, 0x7b,
0x68, 0xef, 0x12, 0x2a, 0xfc, 0xe4, 0xae, 0x3c};
// The key ID for all encrypted files.
const uint8_t kKeyId[] = {0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
0x38, 0x39, 0x30, 0x31, 0x32, 0x33, 0x34, 0x35};
}
const base::FilePath::CharType kTestDataPath[] =
FILE_PATH_LITERAL("media/test/data");
base::FilePath GetTestDataFilePath(const std::string& name) {
base::FilePath file_path;
CHECK(PathService::Get(base::DIR_SOURCE_ROOT, &file_path));
return file_path.Append(GetTestDataPath()).AppendASCII(name);
}
base::FilePath GetTestDataPath() {
return base::FilePath(kTestDataPath);
}
std::string GetURLQueryString(const base::StringPairs& query_params) {
std::string query = "";
base::StringPairs::const_iterator itr = query_params.begin();
for (; itr != query_params.end(); ++itr) {
if (itr != query_params.begin())
query.append("&");
query.append(itr->first + "=" + itr->second);
}
return query;
}
scoped_refptr<DecoderBuffer> ReadTestDataFile(const std::string& name) {
base::FilePath file_path = GetTestDataFilePath(name);
int64_t tmp = 0;
CHECK(base::GetFileSize(file_path, &tmp))
<< "Failed to get file size for '" << name << "'";
int file_size = base::checked_cast<int>(tmp);
scoped_refptr<DecoderBuffer> buffer(new DecoderBuffer(file_size));
CHECK_EQ(file_size,
base::ReadFile(
file_path, reinterpret_cast<char*>(buffer->writable_data()),
file_size)) << "Failed to read '" << name << "'";
return buffer;
}
bool LookupTestKeyVector(const std::vector<uint8_t>& key_id,
bool allow_rotation,
std::vector<uint8_t>* key) {
std::vector<uint8_t> starting_key_id(kKeyId, kKeyId + arraysize(kKeyId));
size_t rotate_limit = allow_rotation ? starting_key_id.size() : 1;
for (size_t pos = 0; pos < rotate_limit; ++pos) {
std::rotate(starting_key_id.begin(), starting_key_id.begin() + pos,
starting_key_id.end());
if (key_id == starting_key_id) {
key->assign(kSecretKey, kSecretKey + arraysize(kSecretKey));
std::rotate(key->begin(), key->begin() + pos, key->end());
return true;
}
}
return false;
}
bool LookupTestKeyString(const std::string& key_id,
bool allow_rotation,
std::string* key) {
std::vector<uint8_t> key_vector;
bool result =
LookupTestKeyVector(std::vector<uint8_t>(key_id.begin(), key_id.end()),
allow_rotation, &key_vector);
if (result)
*key = std::string(key_vector.begin(), key_vector.end());
return result;
}
} // namespace media
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