1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*****************************************************************
|
| AP4 - 8bdl Atoms
|
| Copyright 2002-2009 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.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap48bdlAtom.h"
#include "Ap4Utils.h"
/*----------------------------------------------------------------------
| dynamic cast support
+---------------------------------------------------------------------*/
AP4_DEFINE_DYNAMIC_CAST_ANCHOR(AP4_8bdlAtom)
/*----------------------------------------------------------------------
| AP4_8bdlAtom::AP4_8bdlAtom
+---------------------------------------------------------------------*/
AP4_8bdlAtom::AP4_8bdlAtom(AP4_UI32 encoding,
AP4_UI32 encoding_version,
const AP4_Byte* data,
AP4_Size data_size) :
AP4_Atom(AP4_ATOM_TYPE_8BDL, (AP4_UI32)(AP4_ATOM_HEADER_SIZE+8+data_size)),
m_Encoding(encoding),
m_EncodingVersion(encoding_version),
m_BundleData(data, data_size)
{
}
/*----------------------------------------------------------------------
| AP4_8bdlAtom::Create
+---------------------------------------------------------------------*/
AP4_8bdlAtom*
AP4_8bdlAtom::Create(AP4_Size size, AP4_ByteStream& stream)
{
// make sure we have enough data
if (size < AP4_ATOM_HEADER_SIZE+8) {
return NULL;
} else {
return new AP4_8bdlAtom(size, stream);
}
}
/*----------------------------------------------------------------------
| AP4_8bdlAtom::AP4_8bdlAtom
+---------------------------------------------------------------------*/
AP4_8bdlAtom::AP4_8bdlAtom(AP4_Size size,
AP4_ByteStream& stream) :
AP4_Atom(AP4_ATOM_TYPE_8BDL, (AP4_UI32)(size)),
m_Encoding(AP4_8BDL_XML_DATA_ENCODING),
m_EncodingVersion(0),
m_BundleData(size-AP4_ATOM_HEADER_SIZE-8)
{
stream.ReadUI32(m_Encoding);
stream.ReadUI32(m_EncodingVersion);
m_BundleData.SetDataSize(m_BundleData.GetBufferSize());
stream.Read(m_BundleData.UseData(), m_BundleData.GetDataSize());
}
/*----------------------------------------------------------------------
| AP4_8bdlAtom::WriteFields
+---------------------------------------------------------------------*/
AP4_Result
AP4_8bdlAtom::WriteFields(AP4_ByteStream& stream)
{
AP4_Result result;
// encoding
result = stream.WriteUI32(m_Encoding);
if (AP4_FAILED(result)) return result;
// encoding version
result = stream.WriteUI32(m_EncodingVersion);
if (AP4_FAILED(result)) return result;
// bundle_data
result = stream.Write(m_BundleData.GetData(), m_BundleData.GetDataSize());
if (AP4_FAILED(result)) return result;
return result;
}
/*----------------------------------------------------------------------
| AP4_8bdlAtom::InspectFields
+---------------------------------------------------------------------*/
AP4_Result
AP4_8bdlAtom::InspectFields(AP4_AtomInspector& inspector)
{
char enc[5];
AP4_FormatFourChars(enc, m_Encoding);
inspector.AddField("encoding", enc);
inspector.AddField("encoding_version", m_EncodingVersion);
if (m_Encoding == AP4_8BDL_XML_DATA_ENCODING) {
// we, in fact have an xml string
AP4_String xml((const char*)m_BundleData.GetData(), m_BundleData.GetDataSize());
inspector.AddField("bundle_data", xml.GetChars());
} else {
inspector.AddField("bundle_data", m_BundleData.GetData(), m_BundleData.GetDataSize());
}
return AP4_SUCCESS;
}
|
