| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * 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 PVAUTHORENGINEFACTORY_H_INCLUDED |
| #define PVAUTHORENGINEFACTORY_H_INCLUDED |
| |
| // Forward declaration |
| class PVAuthorEngineInterface; |
| class PVCommandStatusObserver; |
| class PVInformationalEventObserver; |
| class PVErrorEventObserver; |
| |
| |
| /** |
| * PVAuthorEngineFactory Class |
| * |
| * PVAuthorEngineFactory class is a singleton class which instantiates and provides |
| * access to pvAuthor engine. It returns an PVAuthorEngineInterface |
| * reference, the interface class of the pvAuthor SDK. |
| * |
| * The application is expected to contain and maintain a pointer to the |
| * PVAuthorEngineInterface instance at all time that pvAuthor engine is active. |
| **/ |
| class PVAuthorEngineFactory |
| { |
| public: |
| /** |
| * Creates an instance of a pvAuthor engine. If the creation fails, this function will leave. |
| * |
| * @param aCmdStatusObserver The observer for command status |
| * @param aErrorEventObserver The observer for unsolicited error events |
| * @param aInfoEventObserver The observer for unsolicited informational events |
| * @returns A pointer to an author or leaves if instantiation fails |
| **/ |
| OSCL_IMPORT_REF static PVAuthorEngineInterface* CreateAuthor(PVCommandStatusObserver* aCmdStatusObserver, |
| PVErrorEventObserver *aErrorEventObserver, PVInformationalEventObserver *aInfoEventObserver); |
| |
| /** |
| * This function allows the application to delete an instance of a pvAuthor |
| * and reclaim all allocated resources. An author can be deleted only in |
| * the idle state. An attempt to delete an author in any other state will |
| * fail and return false. |
| * |
| * @param aAuthor The author to be deleted. |
| * @returns A status code indicating success or failure. |
| **/ |
| OSCL_IMPORT_REF static bool DeleteAuthor(PVAuthorEngineInterface* aAuthor); |
| }; |
| |
| #endif // PVAUTHORENGINEFACTORY_H_INCLUDED |