AbstractTrackEncryptionBox.java revision dd9eb897ee7c7b507cbdcf80263bb4b5de6966bf 
1package com.googlecode.mp4parser.boxes;
2
3import com.coremedia.iso.IsoTypeReader;
4import com.coremedia.iso.IsoTypeWriter;
5import com.googlecode.mp4parser.AbstractFullBox;
6
7import java.nio.ByteBuffer;
8import java.nio.ByteOrder;
9import java.util.Arrays;
10import java.util.UUID;
11
12/**
13 *
14 */
15public abstract class AbstractTrackEncryptionBox extends AbstractFullBox {
16    int defaultAlgorithmId;
17    int defaultIvSize;
18    byte[] default_KID;
19
20    protected AbstractTrackEncryptionBox(String type) {
21        super(type);
22    }
23
24    public int getDefaultAlgorithmId() {
25        return defaultAlgorithmId;
26    }
27
28    public void setDefaultAlgorithmId(int defaultAlgorithmId) {
29        this.defaultAlgorithmId = defaultAlgorithmId;
30    }
31
32    public int getDefaultIvSize() {
33        return defaultIvSize;
34    }
35
36    public void setDefaultIvSize(int defaultIvSize) {
37        this.defaultIvSize = defaultIvSize;
38    }
39
40    public String getDefault_KID() {
41        ByteBuffer b = ByteBuffer.wrap(default_KID);
42        b.order(ByteOrder.BIG_ENDIAN);
43        return new UUID(b.getLong(), b.getLong()).toString();
44    }
45
46    public void setDefault_KID(byte[] default_KID) {
47        this.default_KID = default_KID;
48    }
49
50    @Override
51    public void _parseDetails(ByteBuffer content) {
52        parseVersionAndFlags(content);
53        defaultAlgorithmId = IsoTypeReader.readUInt24(content);
54        defaultIvSize = IsoTypeReader.readUInt8(content);
55        default_KID = new byte[16];
56        content.get(default_KID);
57    }
58
59    @Override
60    protected void getContent(ByteBuffer byteBuffer) {
61        writeVersionAndFlags(byteBuffer);
62        IsoTypeWriter.writeUInt24(byteBuffer, defaultAlgorithmId);
63        IsoTypeWriter.writeUInt8(byteBuffer, defaultIvSize);
64        byteBuffer.put(default_KID);
65    }
66
67    @Override
68    protected long getContentSize() {
69        return 24;
70    }
71
72    @Override
73    public boolean equals(Object o) {
74        if (this == o) return true;
75        if (o == null || getClass() != o.getClass()) return false;
76
77        AbstractTrackEncryptionBox that = (AbstractTrackEncryptionBox) o;
78
79        if (defaultAlgorithmId != that.defaultAlgorithmId) return false;
80        if (defaultIvSize != that.defaultIvSize) return false;
81        if (!Arrays.equals(default_KID, that.default_KID)) return false;
82
83        return true;
84    }
85
86    @Override
87    public int hashCode() {
88        int result = defaultAlgorithmId;
89        result = 31 * result + defaultIvSize;
90        result = 31 * result + (default_KID != null ? Arrays.hashCode(default_KID) : 0);
91        return result;
92    }
93}
94