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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __DRM_MANAGER_H__
#define __DRM_MANAGER_H__
#include <utils/Errors.h>
#include <utils/threads.h>
#include <drm/drm_framework_common.h>
#include "IDrmEngine.h"
#include "PlugInManager.h"
#include "IDrmServiceListener.h"
namespace android {
class IDrmManager;
class DrmRegistrationInfo;
class DrmUnregistrationInfo;
class DrmRightsAcquisitionInfo;
class DrmContentIds;
class DrmConstraints;
class DrmRights;
class DrmInfo;
class DrmInfoStatus;
class DrmConvertedStatus;
class DrmInfoRequest;
class DrmSupportInfo;
class ActionDescription;
/**
* This is implementation class for DRM Manager. This class delegates the
* functionality to corresponding DRM Engine.
*
* The DrmManagerService class creates an instance of this class.
*
*/
class DrmManager : public IDrmEngine::OnInfoListener {
public:
DrmManager();
virtual ~DrmManager();
public:
status_t loadPlugIns(int uniqueId);
status_t loadPlugIns(int uniqueId, const String8& plugInDirPath);
status_t setDrmServiceListener(
int uniqueId, const sp<IDrmServiceListener>& drmServiceListener);
status_t unloadPlugIns(int uniqueId);
status_t installDrmEngine(int uniqueId, const String8& drmEngineFile);
DrmConstraints* getConstraints(int uniqueId, const String8* path, const int action);
bool canHandle(int uniqueId, const String8& path, const String8& mimeType);
DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo);
DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
void saveRights(int uniqueId, const DrmRights& drmRights,
const String8& rightsPath, const String8& contentPath);
String8 getOriginalMimeType(int uniqueId, const String8& path);
int getDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
int checkRightsStatus(int uniqueId, const String8& path, int action);
void consumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
void setPlaybackStatus(
int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int position);
bool validateAction(
int uniqueId, const String8& path, int action, const ActionDescription& description);
void removeRights(int uniqueId, const String8& path);
void removeAllRights(int uniqueId);
int openConvertSession(int uniqueId, const String8& mimeType);
DrmConvertedStatus* convertData(int uniqueId, int convertId, const DrmBuffer* inputData);
DrmConvertedStatus* closeConvertSession(int uniqueId, int convertId);
status_t getAllSupportInfo(int uniqueId, int* length, DrmSupportInfo** drmSupportInfoArray);
DecryptHandle* openDecryptSession(int uniqueId, int fd, int offset, int length);
void closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
void initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
int decryptUnitId, const DrmBuffer* headerInfo);
status_t decrypt(int uniqueId, DecryptHandle* decryptHandle,
int decryptUnitId, const DrmBuffer* encBuffer,DrmBuffer** decBuffer);
void finalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
ssize_t pread(int uniqueId, DecryptHandle* decryptHandle,
void* buffer, ssize_t numBytes, off_t offset);
void onInfo(const DrmInfoEvent& event);
private:
String8 getSupportedPlugInId(int uniqueId, const String8& path, const String8& mimeType);
String8 getSupportedPlugInId(const String8& mimeType);
String8 getSupportedPlugInIdFromPath(int uniqueId, const String8& path);
void populate(int uniqueId);
bool canHandle(int uniqueId, const String8& path);
void initializePlugIns(int uniqueId);
private:
static const String8 EMPTY_STRING;
int mDecryptSessionId;
int mConvertId;
Mutex mLock;
Mutex mDecryptLock;
Mutex mConvertLock;
TPlugInManager<IDrmEngine> mPlugInManager;
KeyedVector< DrmSupportInfo, String8 > mSupportInfoToPlugInIdMap;
KeyedVector< int, IDrmEngine*> mConvertSessionMap;
KeyedVector< int, sp<IDrmServiceListener> > mServiceListeners;
KeyedVector< int, IDrmEngine*> mDecryptSessionMap;
};
};
#endif /* __DRM_MANAGER_H__ */
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