DrmManager.h revision 27ed8ad2db653f6ac07dcf8bcc05e2409c8bb024
1/* 2 * Copyright (C) 2010 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 __DRM_MANAGER_H__ 18#define __DRM_MANAGER_H__ 19 20#include <utils/Errors.h> 21#include <utils/threads.h> 22#include <drm/drm_framework_common.h> 23#include "IDrmEngine.h" 24#include "PlugInManager.h" 25#include "IDrmServiceListener.h" 26 27namespace android { 28 29class IDrmManager; 30class DrmRegistrationInfo; 31class DrmUnregistrationInfo; 32class DrmRightsAcquisitionInfo; 33class DrmContentIds; 34class DrmConstraints; 35class DrmRights; 36class DrmInfo; 37class DrmInfoStatus; 38class DrmConvertedStatus; 39class DrmInfoRequest; 40class DrmSupportInfo; 41class ActionDescription; 42 43/** 44 * This is implementation class for DRM Manager. This class delegates the 45 * functionality to corresponding DRM Engine. 46 * 47 * The DrmManagerService class creates an instance of this class. 48 * 49 */ 50class DrmManager : public IDrmEngine::OnInfoListener { 51public: 52 DrmManager(); 53 virtual ~DrmManager(); 54 55public: 56 57 status_t loadPlugIns(int uniqueId); 58 59 status_t loadPlugIns(int uniqueId, const String8& plugInDirPath); 60 61 status_t setDrmServiceListener( 62 int uniqueId, const sp<IDrmServiceListener>& drmServiceListener); 63 64 status_t unloadPlugIns(int uniqueId); 65 66 status_t installDrmEngine(int uniqueId, const String8& drmEngineFile); 67 68 DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action); 69 70 bool canHandle(int uniqueId, const String8& path, const String8& mimeType); 71 72 DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo); 73 74 DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest); 75 76 void saveRights(int uniqueId, const DrmRights& drmRights, 77 const String8& rightsPath, const String8& contentPath); 78 79 String8 getOriginalMimeType(int uniqueId, const String8& path); 80 81 int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType); 82 83 int checkRightsStatus(int uniqueId, const String8& path, int action); 84 85 void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve); 86 87 void setPlaybackStatus( 88 int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position); 89 90 bool validateAction( 91 int uniqueId, const String8& path, int action, const ActionDescription& description); 92 93 void removeRights(int uniqueId, const String8& path); 94 95 void removeAllRights(int uniqueId); 96 97 int openConvertSession(int uniqueId, const String8& mimeType); 98 99 DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData); 100 101 DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId); 102 103 status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray); 104 105 DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length); 106 107 void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle); 108 109 void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, 110 int decryptUnitId, const DrmBuffer* headerInfo); 111 112 status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, 113 int decryptUnitId, const DrmBuffer* encBuffer,DrmBuffer** decBuffer); 114 115 void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId); 116 117 ssize_t pread(int uniqueId, DecryptHandle* decryptHandle, 118 void* buffer, ssize_t numBytes, off_t offset); 119 120 void onInfo(const DrmInfoEvent& event); 121 122private: 123 String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType); 124 125 String8 getSupportedPlugInId(const String8& mimeType); 126 127 String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path); 128 129 void populate(int uniqueId); 130 131 bool canHandle(int uniqueId, const String8& path); 132 133 void initializePlugIns(int uniqueId); 134 135private: 136 static const String8 EMPTY_STRING; 137 138 int mDecryptSessionId; 139 int mConvertId; 140 Mutex mLock; 141 Mutex mDecryptLock; 142 Mutex mConvertLock; 143 TPlugInManager<IDrmEngine> mPlugInManager; 144 KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap; 145 KeyedVector< int, IDrmEngine*> mConvertSessionMap; 146 KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners; 147 KeyedVector< int, IDrmEngine*> mDecryptSessionMap; 148}; 149 150}; 151 152#endif /* __DRM_MANAGER_H__ */ 153 154