Ap4TfhdAtom.h
Go to the documentation of this file.00001 /***************************************************************** 00002 | 00003 | AP4 - tfhd 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_TFHD_ATOM_H_ 00030 #define _AP4_TFHD_ATOM_H_ 00031 00032 /*---------------------------------------------------------------------- 00033 | includes 00034 +---------------------------------------------------------------------*/ 00035 #include "Ap4Atom.h" 00036 00037 /*---------------------------------------------------------------------- 00038 | constants 00039 +---------------------------------------------------------------------*/ 00040 const AP4_UI32 AP4_TFHD_FLAG_BASE_DATA_OFFSET_PRESENT = 0x00001; 00041 const AP4_UI32 AP4_TFHD_FLAG_SAMPLE_DESCRIPTION_INDEX_PRESENT = 0x00002; 00042 const AP4_UI32 AP4_TFHD_FLAG_DEFAULT_SAMPLE_DURATION_PRESENT = 0x00008; 00043 const AP4_UI32 AP4_TFHD_FLAG_DEFAULT_SAMPLE_SIZE_PRESENT = 0x00010; 00044 const AP4_UI32 AP4_TFHD_FLAG_DEFAULT_SAMPLE_FLAGS_PRESENT = 0x00020; 00045 const AP4_UI32 AP4_TFHD_FLAG_DURATION_IS_EMPTY = 0x10000; 00046 00047 /*---------------------------------------------------------------------- 00048 | AP4_TfhdAtom 00049 +---------------------------------------------------------------------*/ 00050 class AP4_TfhdAtom : public AP4_Atom 00051 { 00052 public: 00053 AP4_IMPLEMENT_DYNAMIC_CAST(AP4_TfhdAtom) 00054 00055 // class methods 00056 static AP4_TfhdAtom* Create(AP4_Size size, AP4_ByteStream& stream); 00057 static AP4_UI32 ComputeSize(AP4_UI32 flags); 00058 00059 // methods 00060 AP4_TfhdAtom(AP4_UI32 flags, 00061 AP4_UI32 track_id, 00062 AP4_UI64 base_data_offset, 00063 AP4_UI32 sample_description_index, 00064 AP4_UI32 default_sample_duration, 00065 AP4_UI32 default_sample_size, 00066 AP4_UI32 default_sample_flags); 00067 virtual AP4_Result InspectFields(AP4_AtomInspector& inspector); 00068 virtual AP4_Result WriteFields(AP4_ByteStream& stream); 00069 00070 AP4_UI32 GetTrackId() { return m_TrackId; } 00071 void SetTrackId(AP4_UI32 track_id) { m_TrackId = track_id; } 00072 AP4_UI64 GetBaseDataOffset() { return m_BaseDataOffset; } 00073 void SetBaseDataOffset(AP4_UI64 offset) { m_BaseDataOffset = offset; } 00074 AP4_UI32 GetSampleDescriptionIndex() { return m_SampleDescriptionIndex; } 00075 void SetSampleDescriptionIndex(AP4_UI32 indx) { m_SampleDescriptionIndex = indx; } 00076 AP4_UI32 GetDefaultSampleDuration() { return m_DefaultSampleDuration; } 00077 void SetDefaultSampleDuration(AP4_UI32 duration) { m_DefaultSampleDuration = duration; } 00078 AP4_UI32 GetDefaultSampleSize() { return m_DefaultSampleSize; } 00079 void SetDefaultSampleSize(AP4_UI32 size) { m_DefaultSampleSize = size; } 00080 AP4_UI32 GetDefaultSampleFlags() { return m_DefaultSampleFlags; } 00081 void SetDefaultSampleFlags(AP4_UI32 flags) { m_DefaultSampleFlags = flags; } 00082 00083 private: 00084 // methods 00085 AP4_TfhdAtom(AP4_UI32 size, 00086 AP4_UI32 version, 00087 AP4_UI32 flags, 00088 AP4_ByteStream& stream); 00089 00090 // members 00091 AP4_UI32 m_TrackId; 00092 AP4_UI64 m_BaseDataOffset; 00093 AP4_UI32 m_SampleDescriptionIndex; 00094 AP4_UI32 m_DefaultSampleDuration; 00095 AP4_UI32 m_DefaultSampleSize; 00096 AP4_UI32 m_DefaultSampleFlags; 00097 }; 00098 00099 #endif // _AP4_TFHD_ATOM_H_
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