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# Ap4FileByteStream.h

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    00001 /*****************************************************************
    00002 |
    00003 |    AP4 - FileByteStream
    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 /*----------------------------------------------------------------------
    00030 |   includes
    00031 +---------------------------------------------------------------------*/
    00032 #include "Ap4Types.h"
    00033 #include "Ap4ByteStream.h"
    00034
    00035 #ifndef _AP4_FILE_BYTE_STREAM_H_
    00036 #define _AP4_FILE_BYTE_STREAM_H_
    00037
    00038 /*----------------------------------------------------------------------
    00039 |   AP4_FileByteStream
    00040 +---------------------------------------------------------------------*/
    00041 class AP4_FileByteStream: public AP4_ByteStream
    00042 {
    00043 public:
    00044     // types
    00045     typedef enum {
    00046         STREAM_MODE_READ,
    00047         STREAM_MODE_WRITE,
    00048         STREAM_MODE_READ_WRITE
    00049     } Mode;
    00050
    00051     // methods
    00052     AP4_FileByteStream(const char* name, Mode mode);
    00053
    00054     // AP4_ByteStream methods
    00055     AP4_Result ReadPartial(void*    buffer,
    00056                            AP4_Size  bytesToRead,
    00057                            AP4_Size& bytesRead) {
    00058         return m_Delegate->ReadPartial(buffer, bytesToRead, bytesRead);
    00059     }
    00060     AP4_Result WritePartial(const void* buffer,
    00061                             AP4_Size    bytesToWrite,
    00062                             AP4_Size&   bytesWritten) {
    00063         return m_Delegate->WritePartial(buffer, bytesToWrite, bytesWritten);
    00064     }
    00065     AP4_Result Seek(AP4_Position position)  { return m_Delegate->Seek(position); }
    00066     AP4_Result Tell(AP4_Position& position) { return m_Delegate->Tell(position); }
    00067     AP4_Result GetSize(AP4_LargeSize& size) { return m_Delegate->GetSize(size);  }
    00068     AP4_Result Flush() { return m_Delegate->Flush(); }
    00069
    00070     // AP4_Referenceable methods
    00071     void AddReference() { m_Delegate->AddReference(); }
    00072     void Release()      { m_Delegate->Release();      }
    00073
    00074 protected:
    00075     // methods
    00076     virtual ~AP4_FileByteStream() {
    00077         delete m_Delegate;
    00078     }
    00079
    00080     // members
    00081     AP4_ByteStream* m_Delegate;
    00082 };
    00083
    00084 #endif // _AP4_FILE_BYTE_STREAM_H_
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