1 package com.coremedia.iso.boxes.apple; 2 3 import com.googlecode.mp4parser.AbstractFullBox; 4 5 import java.nio.ByteBuffer; 6 7 /** 8 * Most stupid box of the world. Encapsulates actual data within 9 */ 10 public final class AppleDataBox extends AbstractFullBox { 11 public static final String TYPE = "data"; 12 13 private byte[] fourBytes = new byte[4]; 14 private byte[] data; 15 16 private static AppleDataBox getEmpty() { 17 AppleDataBox appleDataBox = new AppleDataBox(); 18 appleDataBox.setVersion(0); 19 appleDataBox.setFourBytes(new byte[4]); 20 return appleDataBox; 21 } 22 23 public static AppleDataBox getStringAppleDataBox() { 24 AppleDataBox appleDataBox = getEmpty(); 25 appleDataBox.setFlags(1); 26 appleDataBox.setData(new byte[]{0}); 27 return appleDataBox; 28 } 29 30 public static AppleDataBox getUint8AppleDataBox() { 31 AppleDataBox appleDataBox = new AppleDataBox(); 32 appleDataBox.setFlags(21); 33 appleDataBox.setData(new byte[]{0}); 34 return appleDataBox; 35 } 36 37 public static AppleDataBox getUint16AppleDataBox() { 38 AppleDataBox appleDataBox = new AppleDataBox(); 39 appleDataBox.setFlags(21); 40 appleDataBox.setData(new byte[]{0, 0}); 41 return appleDataBox; 42 } 43 44 public static AppleDataBox getUint32AppleDataBox() { 45 AppleDataBox appleDataBox = new AppleDataBox(); 46 appleDataBox.setFlags(21); 47 appleDataBox.setData(new byte[]{0, 0, 0, 0}); 48 return appleDataBox; 49 } 50 51 public AppleDataBox() { 52 super(TYPE); 53 } 54 55 protected long getContentSize() { 56 return data.length + 8; 57 } 58 59 public void setData(byte[] data) { 60 this.data = new byte[data.length]; 61 System.arraycopy(data, 0, this.data, 0, data.length); 62 } 63 64 public void setFourBytes(byte[] fourBytes) { 65 System.arraycopy(fourBytes, 0, this.fourBytes, 0, 4); 66 } 67 68 @Override 69 public void _parseDetails(ByteBuffer content) { 70 parseVersionAndFlags(content); 71 fourBytes = new byte[4]; 72 content.get(fourBytes); 73 data = new byte[content.remaining()]; 74 content.get(data); 75 } 76 77 78 @Override 79 protected void getContent(ByteBuffer byteBuffer) { 80 writeVersionAndFlags(byteBuffer); 81 byteBuffer.put(fourBytes, 0, 4); 82 byteBuffer.put(data); 83 } 84 85 public byte[] getFourBytes() { 86 return fourBytes; 87 } 88 89 public byte[] getData() { 90 return data; 91 } 92 } 93
