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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
/*****************************************************************
|
| AP4 - IPMP
|
| 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.
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Ap4Utils.h"
#include "Ap4ByteStream.h"
#include "Ap4Ipmp.h"
#include "Ap4Atom.h"
/*----------------------------------------------------------------------
| dynamic cast support
+---------------------------------------------------------------------*/
AP4_DEFINE_DYNAMIC_CAST_ANCHOR(AP4_IpmpDescriptor)
AP4_DEFINE_DYNAMIC_CAST_ANCHOR(AP4_IpmpDescriptorPointer)
/*----------------------------------------------------------------------
| AP4_IpmpDescriptorPointer::AP4_IpmpDescriptorPointer
+---------------------------------------------------------------------*/
AP4_IpmpDescriptorPointer::AP4_IpmpDescriptorPointer(AP4_UI08 descriptor_id) :
AP4_Descriptor(AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR_POINTER, 2, 1),
m_DescriptorId(descriptor_id),
m_DescriptorIdEx(0),
m_EsId(0)
{
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptorPointer::AP4_IpmpDescriptorPointer
+---------------------------------------------------------------------*/
AP4_IpmpDescriptorPointer::AP4_IpmpDescriptorPointer(AP4_ByteStream& stream,
AP4_Size header_size,
AP4_Size payload_size) :
AP4_Descriptor(AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR_POINTER, header_size, payload_size)
{
stream.ReadUI08(m_DescriptorId);
if (m_DescriptorId == 0xFF && payload_size >= 5) {
stream.ReadUI16(m_DescriptorIdEx);
stream.ReadUI16(m_EsId);
}
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptorPointer::WriteFields
+---------------------------------------------------------------------*/
AP4_Result
AP4_IpmpDescriptorPointer::WriteFields(AP4_ByteStream& stream)
{
stream.WriteUI08(m_DescriptorId);
if (m_DescriptorId == 0xFF) {
stream.WriteUI16(m_DescriptorIdEx);
stream.WriteUI16(m_EsId);
}
return AP4_SUCCESS;
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptorPointer::Inspect
+---------------------------------------------------------------------*/
AP4_Result
AP4_IpmpDescriptorPointer::Inspect(AP4_AtomInspector& inspector)
{
inspector.StartDescriptor("IPMP_DescriptorPointer", GetHeaderSize(), GetSize());
inspector.AddField("IPMP_DescriptorID", m_DescriptorId);
if (m_DescriptorId == 0xFF) {
inspector.AddField("IPMP_DescriptorIDEx", m_DescriptorIdEx);
inspector.AddField("IPMP_ES_ID", m_EsId);
}
inspector.EndDescriptor();
return AP4_SUCCESS;
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptor::AP4_IpmpDescriptor
+---------------------------------------------------------------------*/
AP4_IpmpDescriptor::AP4_IpmpDescriptor(AP4_UI08 descriptor_id, AP4_UI16 ipmps_type) :
AP4_Descriptor(AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR, 2, 3),
m_DescriptorId(descriptor_id),
m_IpmpsType(ipmps_type),
m_DescriptorIdEx(0),
m_ControlPointCode(0),
m_SequenceCode(0)
{
AP4_SetMemory(m_ToolId, 0, sizeof(m_ToolId));
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptor::AP4_IpmpDescriptor
+---------------------------------------------------------------------*/
AP4_IpmpDescriptor::AP4_IpmpDescriptor(AP4_ByteStream& stream,
AP4_Size header_size,
AP4_Size payload_size) :
AP4_Descriptor(AP4_DESCRIPTOR_TAG_IPMP_DESCRIPTOR, header_size, payload_size),
m_DescriptorIdEx(0),
m_ControlPointCode(0),
m_SequenceCode(0)
{
stream.ReadUI08(m_DescriptorId);
stream.ReadUI16(m_IpmpsType);
AP4_SetMemory(m_ToolId, 0, sizeof(m_ToolId));
if (m_DescriptorId == 0xFF && m_IpmpsType == 0xFFFF) {
AP4_Size fields_size = 3+3;
stream.ReadUI16(m_DescriptorIdEx);
stream.Read(m_ToolId, 16);
stream.ReadUI08(m_ControlPointCode);
if (m_ControlPointCode > 0) {
stream.ReadUI08(m_SequenceCode);
++fields_size;
}
if (fields_size < payload_size) {
m_Data.SetDataSize(payload_size-fields_size);
stream.Read(m_Data.UseData(), payload_size-fields_size);
}
} else if (m_IpmpsType == 0) {
if (payload_size > 3) {
char* buffer = new char[1+payload_size-3];
buffer[payload_size-3] = '\0';
stream.Read(buffer, payload_size-3);
m_Url.Assign(buffer, payload_size-3);
delete[] buffer;
}
} else {
if (payload_size > 3) {
m_Data.SetDataSize(payload_size-3);
stream.Read(m_Data.UseData(), payload_size-3);
}
}
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptor::SetData
+---------------------------------------------------------------------*/
void
AP4_IpmpDescriptor::SetData(const unsigned char* data, AP4_Size data_size)
{
m_Data.SetData(data, data_size);
m_PayloadSize += data_size;
m_HeaderSize = MinHeaderSize(m_PayloadSize);
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptor::WriteFields
+---------------------------------------------------------------------*/
AP4_Result
AP4_IpmpDescriptor::WriteFields(AP4_ByteStream& stream)
{
stream.WriteUI08(m_DescriptorId);
stream.WriteUI16(m_IpmpsType);
if (m_DescriptorId == 0xFF && m_IpmpsType == 0xFFFF) {
stream.WriteUI16(m_DescriptorIdEx);
stream.Write(m_ToolId, 16);
stream.WriteUI08(m_ControlPointCode);
if (m_ControlPointCode > 0) {
stream.WriteUI08(m_SequenceCode);
}
if (m_Data.GetDataSize()) {
stream.Write(m_Data.GetData(), m_Data.GetDataSize());
}
} else if (m_IpmpsType == 0) {
stream.Write(m_Url.GetChars(), m_Url.GetLength()+1);
} else {
stream.Write(m_Data.GetData(), m_Data.GetDataSize());
}
return AP4_SUCCESS;
}
/*----------------------------------------------------------------------
| AP4_IpmpDescriptor::Inspect
+---------------------------------------------------------------------*/
AP4_Result
AP4_IpmpDescriptor::Inspect(AP4_AtomInspector& inspector)
{
inspector.StartDescriptor("IPMP_Descriptor", GetHeaderSize(), GetSize());
inspector.AddField("IPMP_DescriptorID", m_DescriptorId);
inspector.AddField("IPMPS_Type", m_IpmpsType, AP4_AtomInspector::HINT_HEX);
if (m_DescriptorId == 0xFF && m_IpmpsType == 0xFFFF) {
inspector.AddField("IPMP_DescriptorIDEx", m_DescriptorIdEx);
inspector.AddField("IPMP_ToolID", (const unsigned char*)(&m_ToolId[0]), 16, AP4_AtomInspector::HINT_HEX);
inspector.AddField("controlPointCode", m_ControlPointCode);
if (m_ControlPointCode > 0) {
inspector.AddField("sequenceCode", m_SequenceCode);
}
} else if (m_IpmpsType == 0) {
inspector.AddField("URL", m_Url.GetChars());
} else {
inspector.AddField("data size", m_Data.GetDataSize());
}
inspector.EndDescriptor();
return AP4_SUCCESS;
}
|
