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      1 /*
      2  * Copyright 2012, 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 _ANDROID_MEDIA_CRYPTO_H_
     18 #define _ANDROID_MEDIA_CRYPTO_H_
     19 
     20 #include "jni.h"
     21 
     22 #include <media/stagefright/foundation/ABase.h>
     23 #include <utils/Errors.h>
     24 #include <utils/RefBase.h>
     25 
     26 namespace android {
     27 
     28 struct ICrypto;
     29 
     30 struct JCrypto : public RefBase {
     31     static bool IsCryptoSchemeSupported(const uint8_t uuid[16]);
     32 
     33     JCrypto(JNIEnv *env, jobject thiz,
     34             const uint8_t uuid[16], const void *initData, size_t initSize);
     35 
     36     status_t initCheck() const;
     37 
     38     bool requiresSecureDecoderComponent(const char *mime) const;
     39 
     40     static sp<ICrypto> GetCrypto(JNIEnv *env, jobject obj);
     41 
     42 protected:
     43     virtual ~JCrypto();
     44 
     45 private:
     46     jweak mObject;
     47     sp<ICrypto> mCrypto;
     48 
     49     static sp<ICrypto> MakeCrypto();
     50 
     51     static sp<ICrypto> MakeCrypto(
     52             const uint8_t uuid[16], const void *initData, size_t initSize);
     53 
     54     DISALLOW_EVIL_CONSTRUCTORS(JCrypto);
     55 };
     56 
     57 }  // namespace android
     58 
     59 #endif  // _ANDROID_MEDIA_CRYPTO_H_
     60