Ap4FileByteStream.h
Go to the documentation of this file.00001 /***************************************************************** 00002 | 00003 | AP4 - FileByteStream 00004 | 00005 | Copyright 2002-2008 Axiomatic Systems, LLC 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 /*---------------------------------------------------------------------- 00030 | includes 00031 +---------------------------------------------------------------------*/ 00032 #include "Ap4Types.h" 00033 #include "Ap4ByteStream.h" 00034 #include "Ap4Config.h" 00035 00036 #ifndef _AP4_FILE_BYTE_STREAM_H_ 00037 #define _AP4_FILE_BYTE_STREAM_H_ 00038 00039 /*---------------------------------------------------------------------- 00040 | AP4_FileByteStream 00041 +---------------------------------------------------------------------*/ 00042 class AP4_FileByteStream: public AP4_ByteStream 00043 { 00044 public: 00045 // types 00046 typedef enum { 00047 STREAM_MODE_READ = 0, 00048 STREAM_MODE_WRITE = 1, 00049 STREAM_MODE_READ_WRITE = 2 00050 } Mode; 00051 00062 static AP4_Result Create(const char* name, Mode mode, AP4_ByteStream*& stream); 00063 00064 // constructors 00065 AP4_FileByteStream(AP4_ByteStream* delegate) : m_Delegate(delegate) {} 00066 00067 #if !defined(AP4_CONFIG_NO_EXCEPTIONS) 00068 00071 AP4_FileByteStream(const char* name, Mode mode); 00072 #endif 00073 00074 // AP4_ByteStream methods 00075 AP4_Result ReadPartial(void* buffer, 00076 AP4_Size bytesToRead, 00077 AP4_Size& bytesRead) { 00078 return m_Delegate->ReadPartial(buffer, bytesToRead, bytesRead); 00079 } 00080 AP4_Result WritePartial(const void* buffer, 00081 AP4_Size bytesToWrite, 00082 AP4_Size& bytesWritten) { 00083 return m_Delegate->WritePartial(buffer, bytesToWrite, bytesWritten); 00084 } 00085 AP4_Result Seek(AP4_Position position) { return m_Delegate->Seek(position); } 00086 AP4_Result Tell(AP4_Position& position) { return m_Delegate->Tell(position); } 00087 AP4_Result GetSize(AP4_LargeSize& size) { return m_Delegate->GetSize(size); } 00088 AP4_Result Flush() { return m_Delegate->Flush(); } 00089 00090 // AP4_Referenceable methods 00091 void AddReference() { m_Delegate->AddReference(); } 00092 void Release() { m_Delegate->Release(); } 00093 00094 protected: 00095 // methods 00096 virtual ~AP4_FileByteStream() { 00097 delete m_Delegate; 00098 } 00099 00100 // members 00101 AP4_ByteStream* m_Delegate; 00102 }; 00103 00104 #endif // _AP4_FILE_BYTE_STREAM_H_ 00105 00106 00107 00108 00109 00110 00111 00112
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