00001 /***************************************************************** 00002 | 00003 | AP4 - Common Interfaces 00004 | 00005 | Copyright 2002-2006 Gilles Boccon-Gibod & Julien Boeuf 00006 | 00007 | 00008 | This file is part of Bento4/AP4 (MP4 Atom Processing Library). 00009 | 00010 | Unless you have obtained Bento4 under a difference license, 00011 | this version of Bento4 is Bento4|GPL. 00012 | Bento4|GPL is free software; you can redistribute it and/or modify 00013 | it under the terms of the GNU General Public License as published by 00014 | the Free Software Foundation; either version 2, or (at your option) 00015 | any later version. 00016 | 00017 | Bento4|GPL is distributed in the hope that it will be useful, 00018 | but WITHOUT ANY WARRANTY; without even the implied warranty of 00019 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00020 | GNU General Public License for more details. 00021 | 00022 | You should have received a copy of the GNU General Public License 00023 | along with Bento4|GPL; see the file COPYING. If not, write to the 00024 | Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA 00025 | 02111-1307, USA. 00026 | 00027 ****************************************************************/ 00028 00029 #ifndef _AP4_INTERFACES_H_ 00030 #define _AP4_INTERFACES_H_ 00031 00032 /*---------------------------------------------------------------------- 00033 | includes 00034 +---------------------------------------------------------------------*/ 00035 #include "Ap4Types.h" 00036 00037 /*---------------------------------------------------------------------- 00038 | macros 00039 +---------------------------------------------------------------------*/ 00040 #define AP4_RELEASE(o) do { if (o) (o)->Release(); (o) = NULL; } while (0) 00041 #define AP4_ADD_REFERENCE(o) do { if (o) (o)->AddReference(); } while (0) 00042 00043 /*---------------------------------------------------------------------- 00044 | AP4_Exception 00045 +---------------------------------------------------------------------*/ 00046 class AP4_Exception 00047 { 00048 public: 00049 // methods 00050 AP4_Exception(AP4_Result error) : m_Error(error) {} 00051 00052 // members 00053 AP4_Result m_Error; 00054 }; 00055 00056 /*---------------------------------------------------------------------- 00057 | AP4_Referenceable 00058 +---------------------------------------------------------------------*/ 00059 class AP4_Referenceable 00060 { 00061 public: 00062 // methods 00063 virtual ~AP4_Referenceable() {} 00064 virtual void AddReference() = 0; 00065 virtual void Release() = 0; 00066 }; 00067 00068 #endif // _AP4_INTERFACES_H_