Package com.bfo.box

Class ExtensionBox

java.lang.Object

com.bfo.box.Box

com.bfo.box.ExtensionBox

Direct Known Subclasses:

C2PAContainerBox, XMPBox

public class ExtensionBox
extends Box

This superclass of Box handles the standad "extension" format defined in ISO14496-12 s 11. It's simply a box where the first 16 bytes have a further type (called "uuid" in ISO14496, "content-type" in ISO19566, "guid" in 16684). We'll call it "subtype" and we will trim from 16 hex digits to four letters if it ends with the "standard" suffix defined in ISO14496.

Since:

5

Constructor Summary

Constructors

Constructor	Description
ExtensionBox()	Create a new uninitialized box, for loading.
ExtensionBox(String type, String subtype)	Create a new ExtensionBox.

Method Summary

Modifier and Type	Method	Description
String	subtype()	Return the subtype of this box, either a 4-character alpha-numeric string (if the type is a "standard" subtype) or a 32-character hex string
String	toString()	Return a String representation of this Box, which will be parseable as JSON

Methods inherited from class com.bfo.box.Box

add, dump, duplicate, first, fullType, getEncoded, insertBefore, isSparse, length, next, parent, remove, type

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Details

ExtensionBox

public ExtensionBox()

Create a new uninitialized box, for loading. Don't call this constructor

ExtensionBox

public ExtensionBox(String type,
 String subtype)

Create a new ExtensionBox. Both parameter are erquired

Parameters:

type - a four letter alphanumeric code, often "uuid"

subtype - either a four letter alphanumeric code or a sixteen-letter hex code

Method Details

subtype

public String subtype()

Return the subtype of this box, either a 4-character alpha-numeric string (if the type is a "standard" subtype) or a 32-character hex string

Returns:

the subtype

toString

public String toString()

Description copied from class: Box

Return a String representation of this Box, which will be parseable as JSON

Overrides:

toString in class Box