1/* 2 * Copyright 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_MEDIA_DESCRAMBLER_H_ 18#define _ANDROID_MEDIA_DESCRAMBLER_H_ 19 20#include "jni.h" 21 22#include <binder/Status.h> 23#include <media/cas/DescramblerAPI.h> 24#include <media/stagefright/foundation/ABase.h> 25#include <utils/Mutex.h> 26#include <utils/RefBase.h> 27 28namespace android { 29class IMemory; 30class MemoryDealer; 31namespace media { 32class IDescrambler; 33}; 34using namespace media; 35using binder::Status; 36 37struct JDescrambler : public RefBase { 38 JDescrambler(JNIEnv *env, jobject descramberBinderObj); 39 40 Status descramble( 41 jbyte key, 42 size_t numSubSamples, 43 ssize_t totalLength, 44 DescramblerPlugin::SubSample *subSamples, 45 const void *srcPtr, 46 jint srcOffset, 47 void *dstPtr, 48 jint dstOffset, 49 ssize_t *result); 50 51protected: 52 virtual ~JDescrambler(); 53 54private: 55 sp<IDescrambler> mDescrambler; 56 sp<IMemory> mMem; 57 sp<MemoryDealer> mDealer; 58 Mutex mSharedMemLock; 59 60 void ensureBufferCapacity(size_t neededSize); 61 62 DISALLOW_EVIL_CONSTRUCTORS(JDescrambler); 63}; 64 65} // namespace android 66 67#endif // _ANDROID_MEDIA_DESCRAMBLER_H_ 68