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      1 /*
      2  * Copyright (C) 2017 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_HARDWARE_CAS_V1_0_DESCRAMBLER_IMPL_H_
     18 #define ANDROID_HARDWARE_CAS_V1_0_DESCRAMBLER_IMPL_H_
     19 
     20 #include <media/stagefright/foundation/ABase.h>
     21 #include <android/hardware/cas/native/1.0/IDescrambler.h>
     22 
     23 namespace android {
     24 struct DescramblerPlugin;
     25 using namespace hardware::cas::native::V1_0;
     26 
     27 namespace hardware {
     28 namespace cas {
     29 namespace V1_0 {
     30 namespace implementation {
     31 
     32 class SharedLibrary;
     33 
     34 class DescramblerImpl : public IDescrambler {
     35 public:
     36     DescramblerImpl(const sp<SharedLibrary>& library, DescramblerPlugin *plugin);
     37     virtual ~DescramblerImpl();
     38 
     39     virtual Return<Status> setMediaCasSession(
     40             const HidlCasSessionId& sessionId) override;
     41 
     42     virtual Return<bool> requiresSecureDecoderComponent(
     43             const hidl_string& mime) override;
     44 
     45     virtual Return<void> descramble(
     46             ScramblingControl scramblingControl,
     47             const hidl_vec<SubSample>& subSamples,
     48             const SharedBuffer& srcBuffer,
     49             uint64_t srcOffset,
     50             const DestinationBuffer& dstBuffer,
     51             uint64_t dstOffset,
     52             descramble_cb _hidl_cb) override;
     53 
     54     virtual Return<Status> release() override;
     55 
     56 private:
     57     sp<SharedLibrary> mLibrary;
     58     std::shared_ptr<DescramblerPlugin> mPluginHolder;
     59 
     60     DISALLOW_EVIL_CONSTRUCTORS(DescramblerImpl);
     61 };
     62 
     63 } // namespace implementation
     64 } // namespace V1_0
     65 } // namespace cas
     66 } // namespace hardware
     67 } // namespace android
     68 
     69 #endif // ANDROID_HARDWARE_CAS_V1_0_DESCRAMBLER_IMPL_H_
     70