00001 /***************************************************************** 00002 | 00003 | AP4 - grpi Atom 00004 | 00005 | Copyright 2008 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_GRPI_ATOM_H_ 00030 #define _AP4_GRPI_ATOM_H_ 00031 00032 /*---------------------------------------------------------------------- 00033 | includes 00034 +---------------------------------------------------------------------*/ 00035 #include "Ap4Types.h" 00036 #include "Ap4Atom.h" 00037 #include "Ap4String.h" 00038 #include "Ap4DataBuffer.h" 00039 00040 /*---------------------------------------------------------------------- 00041 | AP4_GrpiAtom 00042 +---------------------------------------------------------------------*/ 00043 class AP4_GrpiAtom : public AP4_Atom 00044 { 00045 public: 00046 // class methods 00047 static AP4_GrpiAtom* Create(AP4_Size size, 00048 AP4_ByteStream& stream); 00049 00050 // constructor 00051 AP4_GrpiAtom(AP4_UI08 key_encryption_method, 00052 const char* group_id, 00053 const AP4_UI08* group_key, 00054 AP4_Size group_key_length); 00055 00056 // methods 00057 virtual AP4_Result InspectFields(AP4_AtomInspector& inspector); 00058 virtual AP4_Result WriteFields(AP4_ByteStream& stream); 00059 virtual AP4_Atom* Clone(); 00060 00061 // accessors 00062 AP4_UI08 GetKeyEncryptionMethod() const { return m_KeyEncryptionMethod; } 00063 void SetKeyEncryptionMethod(AP4_UI08 encryption_method) { m_KeyEncryptionMethod = encryption_method; } 00064 const AP4_String& GetGroupId() const { return m_GroupId; } 00065 const AP4_DataBuffer& GetGroupKey() const { return m_GroupKey; } 00066 00067 private: 00068 // methods 00069 AP4_GrpiAtom(AP4_UI32 size, 00070 AP4_UI32 version, 00071 AP4_UI32 flags, 00072 AP4_ByteStream& stream); 00073 00074 // members 00075 AP4_UI08 m_KeyEncryptionMethod; 00076 AP4_String m_GroupId; 00077 AP4_DataBuffer m_GroupKey; 00078 }; 00079 00080 #endif // _AP4_GRPI_ATOM_H_