Ap4TkhdAtom.h
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- /*****************************************************************
- |
- | AP4 - tkhd Atoms
- |
- | Copyright 2002 Gilles Boccon-Gibod
- |
- |
- | 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_TKHD_ATOM_H_
- #define _AP4_TKHD_ATOM_H_
- /*----------------------------------------------------------------------
- | includes
- +---------------------------------------------------------------------*/
- #include "Ap4.h"
- #include "Ap4ByteStream.h"
- #include "Ap4List.h"
- #include "Ap4Atom.h"
- /*----------------------------------------------------------------------
- | constants
- +---------------------------------------------------------------------*/
- const int AP4_TKHD_FLAG_TRACK_ENABLED = 1;
- const int AP4_TKHD_FLAG_TRACK_IN_MOVIE = 2;
- const int AP4_TKHD_FLAG_TRACK_IN_PREVIEW = 4;
- const int AP4_TKHD_FLAG_DEFAULTS = 7;
- /*----------------------------------------------------------------------
- | AP4_TkhdAtom
- +---------------------------------------------------------------------*/
- class AP4_TkhdAtom : public AP4_Atom
- {
- public:
- // methods
- AP4_TkhdAtom(AP4_UI32 creation_time,
- AP4_UI32 modification_time,
- AP4_UI32 track_id,
- AP4_UI32 duration,
- AP4_UI16 volume,
- AP4_UI32 width,
- AP4_UI32 height);
- AP4_TkhdAtom(AP4_Size size, AP4_ByteStream& stream);
- virtual AP4_Result InspectFields(AP4_AtomInspector& inspector);
- virtual AP4_Result WriteFields(AP4_ByteStream& stream);
- AP4_UI32 GetDuration() { return m_Duration; }
- AP4_Result SetDuration(AP4_UI32 duration) {
- m_Duration = duration;
- return AP4_SUCCESS;
- }
- AP4_UI32 GetTrackId() { return m_TrackId; }
- AP4_Result SetTrackId(AP4_UI32 track_id) {
- m_TrackId = track_id;
- return AP4_SUCCESS;
- }
- void GetTranslation(AP4_Float& x, AP4_Float& y)
- {
- x = (AP4_Float)(*(int*)&m_Matrix[6]) / 65536;
- y = (AP4_Float)(*(int*)&m_Matrix[7]) / 65536;
- }
- private:
- // members
- AP4_UI32 m_CreationTime;
- AP4_UI32 m_ModificationTime;
- AP4_UI32 m_TrackId;
- AP4_UI32 m_Reserved1;
- AP4_UI32 m_Duration;
- AP4_UI08 m_DataVersion1[32];
- AP4_UI32 m_Reserved2[2];
- AP4_UI16 m_Layer;
- AP4_UI16 m_AlternateGroup;
- AP4_UI16 m_Volume;
- AP4_UI16 m_Reserved3;
- AP4_UI32 m_Matrix[9];
- AP4_UI32 m_Width;
- AP4_UI32 m_Height;
- };
- #endif // _AP4_TKHD_ATOM_H_