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 PVMF_OMX_AUDIODEC_FACTORY_H_INCLUDED 19 #define PVMF_OMX_AUDIODEC_FACTORY_H_INCLUDED 20 21 #ifndef OSCL_BASE_H_INCLUDED 22 #include "oscl_base.h" 23 #endif 24 25 #ifndef OSCL_SCHEDULER_AO_H_INCLUDED 26 #include "oscl_scheduler_ao.h" 27 #endif 28 29 // Forward declaration 30 class PVMFNodeInterface; 31 32 /* Audio decoder node factory related definitions*/ 33 34 #define KPVMFOMXAudioDecNodeUuid PVUuid(0x9fe9e9e1,0x2222,0x4394,0xad,0x85,0x43,0xd3,0x29,0x11,0x9a,0x4a) 35 /** 36 * PVMFOMXAudioDecNodeFactory Class 37 * 38 * a singleton class which instantiates and provides 39 * access to OMX audio decoder node. It returns a PVMFNodeInterface 40 * reference, the interface class of the PVMFAudioDecNode. 41 * 42 * The client is expected to contain and maintain a pointer to the instance created 43 * while the node is active. 44 */ 45 class PVMFOMXAudioDecNodeFactory 46 { 47 public: 48 /** 49 * Creates an instance of a PVMFOMXAudioDecNode. If the creation fails, this function will leave. 50 * 51 * @param aPriority The active object priority for the node. Default is standard priority if not specified 52 * @returns A pointer to an instance of PVMFOMXAudioDecNode as PVMFNodeInterface reference or leaves if instantiation fails 53 **/ 54 OSCL_IMPORT_REF static PVMFNodeInterface* CreatePVMFOMXAudioDecNode(int32 aPriority = OsclActiveObject::EPriorityNominal); 55 56 /** 57 * Deletes an instance of PVMFOMXAudioDecNode 58 * and reclaims all allocated resources. An instance can be deleted only in 59 * the idle state. An attempt to delete in any other state will fail and return false. 60 * 61 * @param aNode The PVMFAVCDecNode instance to be deleted 62 * @returns A status code indicating success or failure of deletion 63 **/ 64 OSCL_IMPORT_REF static bool DeletePVMFOMXAudioDecNode(PVMFNodeInterface* aNode); 65 }; 66 67 #endif // PVMF_OMX_AUDIODEC_FACTORY_H_INCLUDED 68 69