IDrmEngine.h revision a2cd44cb5067b4fe98794860690394254d3ac73c
127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi/* 227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Copyright (C) 2010 The Android Open Source Project 327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Licensed under the Apache License, Version 2.0 (the "License"); 527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * you may not use this file except in compliance with the License. 627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * You may obtain a copy of the License at 727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * http://www.apache.org/licenses/LICENSE-2.0 927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 1027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Unless required by applicable law or agreed to in writing, software 1127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * distributed under the License is distributed on an "AS IS" BASIS, 1227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * See the License for the specific language governing permissions and 1427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * limitations under the License. 1527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 1627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 1727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi#ifndef __IDRM_ENGINE_H__ 1827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi#define __IDRM_ENGINE_H__ 1927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 2027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi#include <drm/drm_framework_common.h> 2127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 2227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshinamespace android { 2327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 2427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmContentIds; 2527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmConstraints; 2627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmRights; 2727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmInfo; 2827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmInfoStatus; 2927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmConvertedStatus; 3027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmInfoRequest; 3127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmSupportInfo; 3227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass DrmInfoEvent; 3327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 3427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi/** 3527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * This class is an interface for plug-in user 3627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 3727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Responsibility of this class is provide generic interface to DRM Engine Manager. 3827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Each interface need to be as abstract as possible. 3927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 4027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshiclass IDrmEngine { 4127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshipublic: 4227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual ~IDrmEngine() { 4327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi } 4427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 4527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshipublic: 4627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi class OnInfoListener { 4727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 4827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi public: 4927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual void onInfo(const DrmInfoEvent& event) = 0; 5027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 5127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual ~OnInfoListener() { } 5227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi }; 5327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 5427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshipublic: 5527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 5627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi ////////////////////////////////// 5727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi // Implementation of IDrmEngine // 5827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi ////////////////////////////////// 5927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 6027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 6127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Initialize plug-in 6227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 6327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 6427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return status_t 6527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 6627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 6727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual status_t initialize(int uniqueId) = 0; 6827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 6927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 7027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Register a callback to be invoked when the caller required to 7127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * receive necessary information 7227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 7327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 7427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] infoListener Listener 7527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return status_t 7627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 7727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 7827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual status_t setOnInfoListener( 7927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, const IDrmEngine::OnInfoListener* infoListener) = 0; 8027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 8127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 8227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Terminate the plug-in 8327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * and release resource bound to plug-in 8427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * e.g.) release native resource 8527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 8627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 8727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return status_t 8827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 8927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 9027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual status_t terminate(int uniqueId) = 0; 9127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 9227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 9327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Get constraint information associated with input content 9427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 9527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 9627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the protected content 9727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] action Actions defined such as, 9827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Action::DEFAULT, Action::PLAY, etc 9927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return DrmConstraints 10027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * key-value pairs of constraint are embedded in it 10127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @note 10227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * In case of error, return NULL 10327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 10427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmConstraints* getConstraints( 10527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, const String8* path, int action) = 0; 10627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 10727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 10827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Get whether the given content can be handled by this plugin or not 10927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 11027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 11127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path the protected object 11227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return bool 11327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * true if this plugin can handle , false in case of not able to handle 11427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 11527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual bool canHandle(int uniqueId, const String8& path) = 0; 11627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 11727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 11827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Executes given drm information based on its type 11927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 12027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 12127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] drmInfo Information needs to be processed 12227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return DrmInfoStatus 12327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * instance as a result of processing given input 12427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 12527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmInfoStatus* processDrmInfo(int uniqueId, const DrmInfo* drmInfo) = 0; 12627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 12727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 12827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Retrieves necessary information for registration, unregistration or rights 12927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * acquisition information. 13027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 13127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 13227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] drmInfoRequest Request information to retrieve drmInfo 13327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return DrmInfo 13427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * instance as a result of processing given input 13527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 13627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmInfo* acquireDrmInfo(int uniqueId, const DrmInfoRequest* drmInfoRequest) = 0; 13727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 13827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 13927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Save DRM rights to specified rights path 14027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * and make association with content path 14127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 14227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 14327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] drmRights DrmRights to be saved 14427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] rightsPath File path where rights to be saved 14527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] contentPath File path where content was saved 1462272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 1472272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 14827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 1492272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t saveRights(int uniqueId, const DrmRights& drmRights, 15027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi const String8& rightsPath, const String8& contentPath) = 0; 15127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 15227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 15327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Retrieves the mime type embedded inside the original content 15427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 15527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 15627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the protected content 15727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return String8 15827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns mime-type of the original content, such as "video/mpeg" 15927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 16027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual String8 getOriginalMimeType(int uniqueId, const String8& path) = 0; 16127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 16227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 16327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Retrieves the type of the protected object (content, rights, etc..) 16427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * using specified path or mimetype. At least one parameter should be non null 16527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * to retrieve DRM object type 16627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 16727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 16827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the content or null. 16927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] mimeType Mime type of the content or null. 17027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return type of the DRM content, 17127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * such as DrmObjectType::CONTENT, DrmObjectType::RIGHTS_OBJECT 17227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 17327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual int getDrmObjectType( 17427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, const String8& path, const String8& mimeType) = 0; 17527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 17627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 17727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Check whether the given content has valid rights or not 17827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 17927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 18027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the protected content 18127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] action Action to perform (Action::DEFAULT, Action::PLAY, etc) 18227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return the status of the rights for the protected content, 18327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * such as RightsStatus::RIGHTS_VALID, RightsStatus::RIGHTS_EXPIRED, etc. 18427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 18527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual int checkRightsStatus(int uniqueId, const String8& path, int action) = 0; 18627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 18727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 18827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Consumes the rights for a content. 18927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * If the reserve parameter is true the rights is reserved until the same 19027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * application calls this api again with the reserve parameter set to false. 19127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 19227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 19327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 19427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] action Action to perform. (Action::DEFAULT, Action::PLAY, etc) 19527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] reserve True if the rights should be reserved. 1962272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 1972272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 19827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 1992272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t consumeRights( 20027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, DecryptHandle* decryptHandle, int action, bool reserve) = 0; 20127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 20227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 20327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Informs the DRM Engine about the playback actions performed on the DRM files. 20427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 20527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 20627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 20727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] playbackStatus Playback action (Playback::START, Playback::STOP, Playback::PAUSE) 20827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] position Position in the file (in milliseconds) where the start occurs. 20927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Only valid together with Playback::START. 2102272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 2112272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 21227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 2132272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t setPlaybackStatus(int uniqueId, DecryptHandle* decryptHandle, 214a2cd44cb5067b4fe98794860690394254d3ac73cGloria Wang int playbackStatus, int64_t position) = 0; 21527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 21627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 21727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Validates whether an action on the DRM content is allowed or not. 21827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 21927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 22027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the protected content 22127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] action Action to validate (Action::PLAY, Action::TRANSFER, etc) 22227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] description Detailed description of the action 22327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return true if the action is allowed. 22427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 22527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual bool validateAction(int uniqueId, const String8& path, 22627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int action, const ActionDescription& description) = 0; 22727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 22827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 22927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Removes the rights associated with the given protected content 23027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 23127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 23227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] path Path of the protected content 2332272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 2342272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 23527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 2362272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t removeRights(int uniqueId, const String8& path) = 0; 23727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 23827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 23927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Removes all the rights information of each plug-in associated with 24027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * DRM framework. Will be used in master reset 24127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 24227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 2432272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 2442272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 24527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 2462272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t removeAllRights(int uniqueId) = 0; 24727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 24827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 24927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * This API is for Forward Lock based DRM scheme. 25027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Each time the application tries to download a new DRM file 25127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * which needs to be converted, then the application has to 25227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * begin with calling this API. 25327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 25427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 25527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] convertId Handle for the convert session 2562272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 2572272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 25827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 2592272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t openConvertSession(int uniqueId, int convertId) = 0; 26027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 26127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 26227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Accepts and converts the input data which is part of DRM file. 26327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * The resultant converted data and the status is returned in the DrmConvertedInfo 26427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * object. This method will be called each time there are new block 26527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * of data received by the application. 26627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 26727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 26827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] convertId Handle for the convert session 26927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] inputData Input Data which need to be converted 27027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return Return object contains the status of the data conversion, 27127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * the output converted data and offset. In this case the 27227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * application will ignore the offset information. 27327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 27427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmConvertedStatus* convertData( 27527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, int convertId, const DrmBuffer* inputData) = 0; 27627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 27727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 27827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Informs the Drm Agent when there is no more data which need to be converted 27927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * or when an error occurs. Upon successful conversion of the complete data, 28027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * the agent will inform that where the header and body signature 28127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * should be added. This signature appending is needed to integrity 28227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * protect the converted file. 28327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 28427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 28527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] convertId Handle for the convert session 28627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return Return object contains the status of the data conversion, 28727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * the header and body signature data. It also informs 28827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * the application on which offset these signature data 28927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * should be appended. 29027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 29127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmConvertedStatus* closeConvertSession( int uniqueId, int convertId) = 0; 29227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 29327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 29427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns the information about the Drm Engine capabilities which includes 29527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * supported MimeTypes and file suffixes. 29627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 29727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 29827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return DrmSupportInfo 29927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * instance which holds the capabilities of a plug-in 30027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 30127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual DrmSupportInfo* getSupportInfo(int uniqueId) = 0; 30227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 30327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 30427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Open the decrypt session to decrypt the given protected content 30527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 30627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 30727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the current decryption session 30827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] fd File descriptor of the protected content to be decrypted 30927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] offset Start position of the content 31027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] length The length of the protected content 31127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return 31227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success 31327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 31427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual status_t openDecryptSession( 315a2cd44cb5067b4fe98794860690394254d3ac73cGloria Wang int uniqueId, DecryptHandle* decryptHandle, int fd, off64_t offset, off64_t length) = 0; 31627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 31727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 318e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * Open the decrypt session to decrypt the given protected content 319e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * 320e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * @param[in] uniqueId Unique identifier for a session 321e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * @param[in] decryptHandle Handle for the current decryption session 322e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * @param[in] uri Path of the protected content to be decrypted 323e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * @return 324e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi * DRM_ERROR_CANNOT_HANDLE for failure and DRM_NO_ERROR for success 325e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi */ 326e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi virtual status_t openDecryptSession( 327e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi int uniqueId, DecryptHandle* decryptHandle, const char* uri) = 0; 328e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi 329e943f84129326ab885cc7a69dcfa17f766b72b89Takeshi Aimi /** 33027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Close the decrypt session for the given handle 33127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 33227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 33327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 3342272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 3352272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 33627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 3372272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t closeDecryptSession(int uniqueId, DecryptHandle* decryptHandle) = 0; 33827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 33927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 34027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Initialize decryption for the given unit of the protected content 34127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 34227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 34327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 34427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID 34527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] headerInfo Information for initializing decryption of this decrypUnit 3462272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 3472272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 34827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 3492272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t initializeDecryptUnit(int uniqueId, DecryptHandle* decryptHandle, 35027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int decryptUnitId, const DrmBuffer* headerInfo) = 0; 35127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 35227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 35327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Decrypt the protected content buffers for the given unit 35427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * This method will be called any number of times, based on number of 35527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * encrypted streams received from application. 35627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 35727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 35827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 35927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID 36027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] encBuffer Encrypted data block 36127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[out] decBuffer Decrypted data block 3622272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @param[in] IV Optional buffer 36327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return status_t 36427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Returns the error code for this API 36527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * DRM_NO_ERROR for success, and one of DRM_ERROR_UNKNOWN, DRM_ERROR_LICENSE_EXPIRED 36627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * DRM_ERROR_SESSION_NOT_OPENED, DRM_ERROR_DECRYPT_UNIT_NOT_INITIALIZED, 36727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * DRM_ERROR_DECRYPT for failure. 36827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 3692272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t decrypt(int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId, 3702272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi const DrmBuffer* encBuffer, DrmBuffer** decBuffer, DrmBuffer* IV) = 0; 37127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 37227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 37327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Finalize decryption for the given unit of the protected content 37427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 37527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 37627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 37727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptUnitId ID which specifies decryption unit, such as track ID 3782272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * @return status_t 3792272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi * Returns DRM_NO_ERROR for success, DRM_ERROR_UNKNOWN for failure 38027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 3812272ee27d9022d173b6eab45c409b3c3f57f30ecTakeshi Aimi virtual status_t finalizeDecryptUnit( 38227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi int uniqueId, DecryptHandle* decryptHandle, int decryptUnitId) = 0; 38327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 38427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi /** 38527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * Reads the specified number of bytes from an open DRM file. 38627ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 38727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] uniqueId Unique identifier for a session 38827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] decryptHandle Handle for the decryption session 38927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[out] buffer Reference to the buffer that should receive the read data. 39027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] numBytes Number of bytes to read. 39127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @param[in] offset Offset with which to update the file position. 39227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * 39327ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi * @return Number of bytes read. Returns -1 for Failure. 39427ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi */ 39527ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi virtual ssize_t pread(int uniqueId, DecryptHandle* decryptHandle, 396a2cd44cb5067b4fe98794860690394254d3ac73cGloria Wang void* buffer, ssize_t numBytes, off64_t offset) = 0; 39727ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi}; 39827ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 39927ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi}; 40027ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 40127ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi#endif /* __IDRM_ENGINE_H__ */ 40227ed8ad2db653f6ac07dcf8bcc05e2409c8bb024aimitakeshi 403