1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef CLEARKEY_CRYPTO_PLUGIN_H_
18 #define CLEARKEY_CRYPTO_PLUGIN_H_
19 
20 #include <media/hardware/CryptoAPI.h>
21 #include <media/stagefright/foundation/ABase.h>
22 #include <media/stagefright/foundation/AString.h>
23 #include <utils/Errors.h>
24 #include <utils/StrongPointer.h>
25 
26 #include "ClearKeyTypes.h"
27 #include "Session.h"
28 #include "Utils.h"
29 
30 namespace clearkeydrm {
31 
32 class CryptoPlugin : public android::CryptoPlugin {
33 public:
CryptoPlugin(const android::sp<Session> & session)34     CryptoPlugin(const android::sp<Session>& session) : mSession(session) {}
~CryptoPlugin()35     virtual ~CryptoPlugin() {}
36 
requiresSecureDecoderComponent(const char * mime)37     virtual bool requiresSecureDecoderComponent(const char* mime) const {
38         UNUSED(mime);
39         return false;
40     }
41 
42     virtual ssize_t decrypt(
43             bool secure, const KeyId keyId, const Iv iv,
44             Mode mode, const void* srcPtr,
45             const SubSample* subSamples, size_t numSubSamples,
46             void* dstPtr, android::AString* errorDetailMsg);
47 
48 private:
49     DISALLOW_EVIL_CONSTRUCTORS(CryptoPlugin);
50 
51     android::sp<Session> mSession;
52 };
53 
54 } // namespace clearkeydrm
55 
56 #endif // CLEARKEY_CRYPTO_PLUGIN_H_
57