/*****************************************************************
|
| AP4 - Sample Objects
|
| Copyright 2002-2005 Gilles Boccon-Gibod & Julien Boeuf
|
|
| This file is part of Bento4/AP4 (MP4 Atom Processing Library).
|
| Unless you have obtained Bento4 under a difference license,
| this version of Bento4 is Bento4|GPL.
| Bento4|GPL is free software; you can redistribute it and/or modify
| it under the terms of the GNU General Public License as published by
| the Free Software Foundation; either version 2, or (at your option)
| any later version.
|
| Bento4|GPL is distributed in the hope that it will be useful,
| but WITHOUT ANY WARRANTY; without even the implied warranty of
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
| GNU General Public License for more details.
|
| You should have received a copy of the GNU General Public License
| along with Bento4|GPL; see the file COPYING. If not, write to the
| Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
| 02111-1307, USA.
|
****************************************************************/
#ifndef _AP4_SAMPLE_H_
#define _AP4_SAMPLE_H_
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap4.h"
#include "Ap4ByteStream.h"
#include "Ap4DataBuffer.h"
/*----------------------------------------------------------------------
| AP4_Sample DO NOT DERIVE FROM THIS CLASS
+---------------------------------------------------------------------*/
class AP4_Sample
{
public:
// constructors and destructor
AP4_Sample();
AP4_Sample(const AP4_Sample& other);
AP4_Sample(AP4_ByteStream& data_stream,
AP4_Offset offset,
AP4_Size size,
AP4_Ordinal description_index,
AP4_TimeStamp dts,
AP4_TimeStamp cts_offset,
AP4_Duration duration,
bool sync_flag);
~AP4_Sample(); // not virtual on purpose: do not derive from it
// operators
AP4_Sample& operator=(const AP4_Sample& other);
// methods
AP4_Result ReadData(AP4_DataBuffer& data);
AP4_Result ReadData(AP4_DataBuffer& data,
AP4_Size size,
AP4_Offset offset = 0);
// sample properties accessors
AP4_ByteStream* GetDataStream();
void SetDataStream(AP4_ByteStream& stream);
AP4_Offset GetOffset() const { return m_Offset; }
void SetOffset(AP4_Offset offset) { m_Offset = offset; }
AP4_Size GetSize() { return m_Size; }
void SetSize(AP4_Size size) { m_Size = size; }
AP4_Ordinal GetDescriptionIndex() const { return m_DescriptionIndex; }
void SetDescriptionIndex(AP4_Ordinal index) { m_DescriptionIndex = index; }
AP4_TimeStamp GetDts() const { return m_Dts; }
void SetDts(AP4_TimeStamp dts) { m_Dts = dts; }
AP4_TimeStamp GetDuration() const { return m_Duration; }
void SetDuration(AP4_Duration duration) { m_Duration = duration;}
AP4_SI64 GetCts() const { return m_Cts; }
void SetCts(AP4_SI64 cts) { m_Cts = cts; }
bool IsSync() const { return m_IsSync; }
void SetSync(bool is_sync) { m_IsSync = is_sync; }
protected:
AP4_ByteStream* m_DataStream;
AP4_Offset m_Offset;
AP4_Size m_Size;
AP4_Ordinal m_DescriptionIndex;
AP4_TimeStamp m_Dts;
AP4_SI64 m_Cts;
AP4_Duration m_Duration;
bool m_IsSync;
};
#endif // _AP4_SAMPLE_H_
↑ V802 On 64-bit platform, structure size can be reduced from 64 to 56 bytes by rearranging the fields according to their sizes in decreasing order.