blob: c5cb586f4ed471fc84c396b90fd2b6b98a692d89 (
plain)
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
|
/*
* Copyright 2011 castLabs, Berlin
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.googlecode.mp4parser.boxes.mp4.objectdescriptors;
import com.coremedia.iso.IsoTypeReader;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.ArrayList;
import java.util.List;
/*
class ObjectDescriptor extends ObjectDescriptorBase : bit(8) tag=ObjectDescrTag {
bit(10) ObjectDescriptorID;
bit(1) URL_Flag;
const bit(5) reserved=0b1111.1;
if (URL_Flag) {
bit(8) URLlength;
bit(8) URLstring[URLlength];
} else {
ES_Descriptor esDescr[1 .. 255];
OCI_Descriptor ociDescr[0 .. 255];
IPMP_DescriptorPointer ipmpDescrPtr[0 .. 255];
IPMP_Descriptor ipmpDescr [0 .. 255];
}
ExtensionDescriptor extDescr[0 .. 255];
}
*/
@Descriptor(tags = {0x01, 0x11})
public class ObjectDescriptor extends ObjectDescriptorBase {
private int objectDescriptorId;
int objectDescriptorUrlFlag;
int objectDescriptorUrlLength;
String objectDescriptorUrlString;
private int streamCount;
private int extensionFlag;
private List<ESDescriptor> esDescriptors = new ArrayList<ESDescriptor>();
private int descriptorLength;
private List<ExtensionDescriptor> extensionDescriptors = new ArrayList<ExtensionDescriptor>();
public static ObjectDescriptor createFrom(ByteBuffer in) throws IOException {
/*
tmp = in.readUInt16();
esDescriptor.objectDescriptorId = tmp & 0x3f;
esDescriptor.objectDescriptorUrlFlag = (tmp >> 5) & 0x1;
if (esDescriptor.objectDescriptorUrlFlag == 1) {
esDescriptor.objectDescriptorUrlLength = in.readUInt8();
esDescriptor.objectDescriptorUrlString = new String(in.read(esDescriptor.objectDescriptorUrlLength));
}
*/
ObjectDescriptor objectDescriptor = new ObjectDescriptor();
int data = IsoTypeReader.readUInt16(in);
objectDescriptor.objectDescriptorId = data & 0xFFC0;
objectDescriptor.streamCount = data & 0x3E;
objectDescriptor.extensionFlag = data & 0x1;
// for (int i = 0; i < objectDescriptor.streamCount; i++) {
// objectDescriptor.esDescriptors.add(ESDescriptor.createFrom(in));
// }
//
// if (objectDescriptor.extensionFlag == 1) {
// objectDescriptor.descriptorLength = in.readUInt8();
// for (int i = 0; i < objectDescriptor.descriptorLength;) {
// ExtensionDescriptor extensionDescriptor = ExtensionDescriptor.createFrom(in);
// objectDescriptor.extensionDescriptors.add(extensionDescriptor);
// i = i + extensionDescriptor.descriptorDataLength + 1;
// }
// }
return objectDescriptor;
}
@Override
public String toString() {
return "ObjectDescriptor{" +
"objectDescriptorId=" + objectDescriptorId +
", streamCount=" + streamCount +
", extensionFlag=" + extensionFlag +
", esDescriptors=" + esDescriptors +
", descriptorLength=" + descriptorLength +
", extensionDescriptors=" + extensionDescriptors +
'}';
}
}
|
