1 /*
2  * Copyright (c) 2022 Huawei Device Co., Ltd.
3  * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *     http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 #ifndef AV_SESSION_HASH_CALCULATOR_H
17 #define AV_SESSION_HASH_CALCULATOR_H
18 
19 #include <vector>
20 #include <openssl/sha.h>
21 
22 #include "avsession_errors.h"
23 #include "avsession_log.h"
24 
25 namespace OHOS::AVSession {
26 class HashCalculator {
27 public:
28     HashCalculator() = default;
29 
30     ~HashCalculator();
31 
32     int32_t Init();
33 
34     int32_t Update(const std::vector<uint8_t> &value);
35 
36     int32_t GetResult(std::vector<uint8_t> &value);
37 
38 private:
39     SHA256_CTX *context_ = nullptr;
40 };
41 }
42 #endif // AV_SESSION_HASH_CALCULATOR_H