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|
/*****************************************************************
|
| AP4 - stts Atoms
|
| Copyright 2002-2008 Axiomatic Systems, LLC
|
|
| 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_STTS_ATOM_H_
#define _AP4_STTS_ATOM_H_
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap4Array.h"
#include "Ap4Atom.h"
/*----------------------------------------------------------------------
| AP4_SttsTableEntry
+---------------------------------------------------------------------*/
class AP4_SttsTableEntry {
public:
AP4_SttsTableEntry() :
m_SampleCount(0),
m_SampleDuration(0) {}
AP4_SttsTableEntry(AP4_UI32 sample_count,
AP4_UI32 sample_duration) :
m_SampleCount(sample_count),
m_SampleDuration(sample_duration) {}
AP4_UI32 m_SampleCount;
AP4_UI32 m_SampleDuration;
};
/*----------------------------------------------------------------------
| AP4_SttsAtom
+---------------------------------------------------------------------*/
class AP4_SttsAtom : public AP4_Atom
{
public:
AP4_IMPLEMENT_DYNAMIC_CAST_D(AP4_SttsAtom, AP4_Atom)
// class methods
static AP4_SttsAtom* Create(AP4_Size size, AP4_ByteStream& stream);
// methods
AP4_SttsAtom();
virtual AP4_Result InspectFields(AP4_AtomInspector& inspector);
virtual AP4_Result GetDts(AP4_Ordinal sample, AP4_UI64& dts, AP4_UI32* duration = NULL);
virtual AP4_Result AddEntry(AP4_UI32 sample_count, AP4_UI32 sample_duration);
virtual AP4_Result GetSampleIndexForTimeStamp(AP4_UI64 ts,
AP4_Ordinal& sample_index);
virtual AP4_Result WriteFields(AP4_ByteStream& stream);
private:
// methods
AP4_SttsAtom(AP4_UI32 size,
AP4_UI08 version,
AP4_UI32 flags,
AP4_ByteStream& stream);
// members
AP4_Array<AP4_SttsTableEntry> m_Entries;
struct {
AP4_Ordinal entry_index;
AP4_Ordinal sample;
AP4_UI64 dts;
} m_LookupCache;
};
#endif // _AP4_STTS_ATOM_H_
|
