1 /* ------------------------------------------------------------------ 2 * Copyright (C) 1998-2009 PacketVideo 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 13 * express or implied. 14 * See the License for the specific language governing permissions 15 * and limitations under the License. 16 * ------------------------------------------------------------------- 17 */ 18 #ifndef PVMI_MEDIA_IO_OBSERVER_H_INCLUDED 19 #define PVMI_MEDIA_IO_OBSERVER_H_INCLUDED 20 21 #ifndef PVMF_EVENT_HANDLING_H_INCLUDED 22 #include "pvmf_event_handling.h" 23 #endif 24 25 /** 26 * Observer interface for asynchronous PvmiMIOControl requests. Clients using PvmiMIOControl interface 27 * must implement this observer interface to receive callbacks for PvmiMIOControl requests. 28 */ 29 class PvmiMIOObserver 30 { 31 public: ~PvmiMIOObserver()32 virtual ~PvmiMIOObserver() {} 33 34 /** 35 * Signal of completion for asynchronous PvmiMIOControl requests. 36 * @param aResponse Completion response containing status and other data 37 */ 38 virtual void RequestCompleted(const PVMFCmdResp& aResponse) = 0; 39 virtual void ReportErrorEvent(PVMFEventType aEventType, PVInterface* aExtMsg = NULL) = 0; 40 virtual void ReportInfoEvent(PVMFEventType aEventType, PVInterface* aExtMsg = NULL) = 0; 41 }; 42 43 #endif // PVMI_MEDIA_IO_OBSERVER_H_INCLUDED 44