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
|
/*
* Copyright 2009 castLabs GmbH, 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.coremedia.iso.boxes.fragment;
import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BitReaderBuffer;
import com.googlecode.mp4parser.boxes.mp4.objectdescriptors.BitWriterBuffer;
import java.io.IOException;
import java.nio.ByteBuffer;
/**
* bit(6) reserved=0;
* unsigned int(2) sample_depends_on;
* unsigned int(2) sample_is_depended_on;
* unsigned int(2) sample_has_redundancy;
* bit(3) sample_padding_value;
* bit(1) sample_is_difference_sample;
* // i.e. when 1 signals a non-key or non-sync sample
* unsigned int(16) sample_degradation_priority;
*/
public class SampleFlags {
private int reserved;
private int sampleDependsOn;
private int sampleIsDependedOn;
private int sampleHasRedundancy;
private int samplePaddingValue;
private boolean sampleIsDifferenceSample;
private int sampleDegradationPriority;
public SampleFlags() {
}
public SampleFlags(ByteBuffer bb) {
BitReaderBuffer brb = new BitReaderBuffer(bb);
reserved = brb.readBits(6);
sampleDependsOn = brb.readBits(2);
sampleIsDependedOn = brb.readBits(2);
sampleHasRedundancy = brb.readBits(2);
samplePaddingValue = brb.readBits(3);
sampleIsDifferenceSample = brb.readBits(1) == 1;
sampleDegradationPriority = brb.readBits(16);
}
public void getContent(ByteBuffer os) {
BitWriterBuffer bitWriterBuffer = new BitWriterBuffer(os);
bitWriterBuffer.writeBits(reserved, 6);
bitWriterBuffer.writeBits(sampleDependsOn, 2);
bitWriterBuffer.writeBits(sampleIsDependedOn, 2);
bitWriterBuffer.writeBits(sampleHasRedundancy, 2);
bitWriterBuffer.writeBits(samplePaddingValue, 3);
bitWriterBuffer.writeBits(this.sampleIsDifferenceSample ? 1 : 0, 1);
bitWriterBuffer.writeBits(sampleDegradationPriority, 16);
}
public int getReserved() {
return reserved;
}
public void setReserved(int reserved) {
this.reserved = reserved;
}
/**
* @see #setSampleDependsOn(int)
*/
public int getSampleDependsOn() {
return sampleDependsOn;
}
/**
* sample_depends_on takes one of the following four values:
* <pre>
* 0: the dependency of this sample is unknown;
* 1: this sample does depend on others (not an I picture);
* 2: this sample does not depend on others (I picture);
* 3: reserved
* </pre>
*
*/
public void setSampleDependsOn(int sampleDependsOn) {
this.sampleDependsOn = sampleDependsOn;
}
/**
* @see #setSampleIsDependedOn(int)
*/
public int getSampleIsDependedOn() {
return sampleIsDependedOn;
}
/**
* sample_is_depended_on takes one of the following four values:
* <pre>
* 0: the dependency of other samples on this sample is unknown;
* 1: other samples may depend on this one (not disposable);
* 2: no other sample depends on this one (disposable);
* 3: reserved
* </pre>
*
*/
public void setSampleIsDependedOn(int sampleIsDependedOn) {
this.sampleIsDependedOn = sampleIsDependedOn;
}
/**
* @see #setSampleHasRedundancy(int)
*/
public int getSampleHasRedundancy() {
return sampleHasRedundancy;
}
/**
* sample_has_redundancy takes one of the following four values:
* <pre>
* 0: it is unknown whether there is redundant coding in this sample;
* 1: there is redundant coding in this sample;
* 2: there is no redundant coding in this sample;
* 3: reserved
* </pre>
*/
public void setSampleHasRedundancy(int sampleHasRedundancy) {
this.sampleHasRedundancy = sampleHasRedundancy;
}
public int getSamplePaddingValue() {
return samplePaddingValue;
}
public void setSamplePaddingValue(int samplePaddingValue) {
this.samplePaddingValue = samplePaddingValue;
}
public boolean isSampleIsDifferenceSample() {
return sampleIsDifferenceSample;
}
public void setSampleIsDifferenceSample(boolean sampleIsDifferenceSample) {
this.sampleIsDifferenceSample = sampleIsDifferenceSample;
}
public int getSampleDegradationPriority() {
return sampleDegradationPriority;
}
public void setSampleDegradationPriority(int sampleDegradationPriority) {
this.sampleDegradationPriority = sampleDegradationPriority;
}
@Override
public String toString() {
return "SampleFlags{" +
"reserved=" + reserved +
", sampleDependsOn=" + sampleDependsOn +
", sampleHasRedundancy=" + sampleHasRedundancy +
", samplePaddingValue=" + samplePaddingValue +
", sampleIsDifferenceSample=" + sampleIsDifferenceSample +
", sampleDegradationPriority=" + sampleDegradationPriority +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
SampleFlags that = (SampleFlags) o;
if (reserved != that.reserved) return false;
if (sampleDegradationPriority != that.sampleDegradationPriority) return false;
if (sampleDependsOn != that.sampleDependsOn) return false;
if (sampleHasRedundancy != that.sampleHasRedundancy) return false;
if (sampleIsDependedOn != that.sampleIsDependedOn) return false;
if (sampleIsDifferenceSample != that.sampleIsDifferenceSample) return false;
if (samplePaddingValue != that.samplePaddingValue) return false;
return true;
}
@Override
public int hashCode() {
int result = reserved;
result = 31 * result + sampleDependsOn;
result = 31 * result + sampleIsDependedOn;
result = 31 * result + sampleHasRedundancy;
result = 31 * result + samplePaddingValue;
result = 31 * result + (sampleIsDifferenceSample ? 1 : 0);
result = 31 * result + sampleDegradationPriority;
return result;
}
}
|
