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      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_PASSTHRU_PLUGIN_H__
     18 #define __DRM_PASSTHRU_PLUGIN_H__
     19 
     20 #include <DrmEngineBase.h>
     21 
     22 namespace android {
     23 
     24 class DrmPassthruPlugIn : public DrmEngineBase {
     25 
     26 public:
     27     DrmPassthruPlugIn();
     28     virtual ~DrmPassthruPlugIn();
     29 
     30 protected:
     31     DrmConstraints* onGetConstraints(int uniqueId, const String8* path, int action);
     32 
     33     DrmMetadata* onGetMetadata(int uniqueId, const String8* path);
     34 
     35     status_t onInitialize(int uniqueId);
     36 
     37     status_t onSetOnInfoListener(int uniqueId, const IDrmEngine::OnInfoListener* infoListener);
     38 
     39     status_t onTerminate(int uniqueId);
     40 
     41     bool onCanHandle(int uniqueId, const String8& path);
     42 
     43     DrmInfoStatus* onProcessDrmInfo(int uniqueId, const DrmInfo* drmInfo);
     44 
     45     status_t onSaveRights(int uniqueId, const DrmRights& drmRights,
     46             const String8& rightsPath, const String8& contentPath);
     47 
     48     DrmInfo* onAcquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest);
     49 
     50     String8 onGetOriginalMimeType(int uniqueId, const String8& path, int fd);
     51 
     52     int onGetDrmObjectType(int uniqueId, const String8& path, const String8& mimeType);
     53 
     54     int onCheckRightsStatus(int uniqueId, const String8& path, int action);
     55 
     56     status_t onConsumeRights(int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve);
     57 
     58     status_t onSetPlaybackStatus(
     59             int uniqueId, DecryptHandle* decryptHandle, int playbackStatus, int64_t position);
     60 
     61     bool onValidateAction(
     62             int uniqueId, const String8& path, int action, const ActionDescription& description);
     63 
     64     status_t onRemoveRights(int uniqueId, const String8& path);
     65 
     66     status_t onRemoveAllRights(int uniqueId);
     67 
     68     status_t onOpenConvertSession(int uniqueId, int convertId);
     69 
     70     DrmConvertedStatus* onConvertData(int uniqueId, int convertId, const DrmBuffer* inputData);
     71 
     72     DrmConvertedStatus* onCloseConvertSession(int uniqueId, int convertId);
     73 
     74     DrmSupportInfo* onGetSupportInfo(int uniqueId);
     75 
     76     status_t onOpenDecryptSession(
     77             int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length);
     78 
     79     status_t onOpenDecryptSession(
     80             int uniqueId, DecryptHandle* decryptHandle, const char* uri);
     81 
     82     status_t onCloseDecryptSession(int uniqueId, DecryptHandle* decryptHandle);
     83 
     84     status_t onInitializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle,
     85             int decryptUnitId, const DrmBuffer* headerInfo);
     86 
     87     status_t onDecrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId,
     88             const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV);
     89 
     90     status_t onFinalizeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId);
     91 
     92     ssize_t onPread(int uniqueId, DecryptHandle* decryptHandle,
     93             void* buffer, ssize_t numBytes, off64_t offset);
     94 
     95 private:
     96     DecryptHandle* openDecryptSessionImpl();
     97 };
     98 
     99 };
    100 
    101 #endif /* __DRM_PASSTHRU_PLUGIN_H__ */
    102 
    103