Bento4 MP4 SDK: Ap4TfraAtom.h Source File

Bento4 MP4 SDK

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Ap4TfraAtom.h

00001 /*****************************************************************
00002 |
00003 |    AP4 - tfra Atoms 
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 #ifndef _AP4_TFRA_ATOM_H_
00030 #define _AP4_TFRA_ATOM_H_
00031 
00032 /*----------------------------------------------------------------------
00033 |   includes
00034 +---------------------------------------------------------------------*/
00035 #include "Ap4Types.h"
00036 #include "Ap4Atom.h"
00037 #include "Ap4Array.h"
00038 
00039 /*----------------------------------------------------------------------
00040 |   class references
00041 +---------------------------------------------------------------------*/
00042 class AP4_ByteStream;
00043 
00044 /*----------------------------------------------------------------------
00045 |   AP4_TfraAtom
00046 +---------------------------------------------------------------------*/
00047 class AP4_TfraAtom : public AP4_Atom
00048 {
00049 public:
00050     AP4_IMPLEMENT_DYNAMIC_CAST_D(AP4_TfraAtom, AP4_Atom)
00051 
00052     // types
00053     struct Entry {
00054         Entry() : m_Time(0), m_MoofOffset(0), m_TrafNumber(0), m_TrunNumber(0), m_SampleNumber(0) {}
00055         AP4_UI64 m_Time;
00056         AP4_UI64 m_MoofOffset;
00057         AP4_UI32 m_TrafNumber;
00058         AP4_UI32 m_TrunNumber;
00059         AP4_UI32 m_SampleNumber;
00060     };
00061     
00062     // class methods
00063     static AP4_TfraAtom* Create(AP4_Size size, AP4_ByteStream& stream);
00064     
00065     // constructors 
00066     AP4_TfraAtom();
00067 
00068     // methods
00069     virtual AP4_Result InspectFields(AP4_AtomInspector& inspector);
00070     virtual AP4_Result WriteFields(AP4_ByteStream& stream);
00071 
00072     // accessors
00073     AP4_Array<Entry>& GetEntries() { return m_Entries; }
00074 
00075 private:
00076     // methods
00077     AP4_TfraAtom(AP4_UI32 size, AP4_UI32 version, AP4_UI32 flags, AP4_ByteStream& stream);
00078 
00079     // members
00080     AP4_UI32         m_TrackId;
00081     AP4_UI08         m_LengthSizeOfTrafNumber;
00082     AP4_UI08         m_LengthSizeOfTrunNumber;
00083     AP4_UI08         m_LengthSizeOfSampleNumber;
00084     AP4_Array<Entry> m_Entries;
00085 };
00086 
00087 #endif // _AP4_TFRA_ATOM_H_
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