1 package com.googlecode.mp4parser.boxes.piff;
2 
3 import com.googlecode.mp4parser.boxes.AbstractSampleEncryptionBox;
4 
5 /**
6  * <pre>
7  * aligned(8) class SampleEncryptionBox extends FullBox(‘uuid’, extended_type= 0xA2394F52-5A9B-4f14-A244-6C427C648DF4, version=0, flags=0)
8  * {
9  *  if (flags & 0x000001)
10  *  {
11  *   unsigned int(24) AlgorithmID;
12  *   unsigned int(8) IV_size;
13  *   unsigned int(8)[16] KID;
14  *  }
15  *  unsigned int (32) sample_count;
16  *  {
17  *   unsigned int(IV_size) InitializationVector;
18  *   if (flags & 0x000002)
19  *   {
20  *    unsigned int(16) NumberOfEntries;
21  *    {
22  *     unsigned int(16) BytesOfClearData;
23  *     unsigned int(32) BytesOfEncryptedData;
24  *    } [ NumberOfEntries]
25  *   }
26  *  }[ sample_count ]
27  * }
28  * </pre>
29  */
30 public class PiffSampleEncryptionBox extends AbstractSampleEncryptionBox {
31 
32     /**
33      * Creates a AbstractSampleEncryptionBox for non-h264 tracks.
34      */
PiffSampleEncryptionBox()35     public PiffSampleEncryptionBox() {
36         super("uuid");
37 
38     }
39 
40     @Override
getUserType()41     public byte[] getUserType() {
42         return new byte[]{(byte) 0xA2, 0x39, 0x4F, 0x52, 0x5A, (byte) 0x9B, 0x4f, 0x14, (byte) 0xA2, 0x44, 0x6C, 0x42, 0x7C, 0x64, (byte) 0x8D, (byte) 0xF4};
43     }
44 
45 }
46