org.farng.mp3.id3
Class FrameBodyAENC

java.lang.Object
  org.farng.mp3.AbstractMP3FileItem
      org.farng.mp3.AbstractMP3FragmentBody
          org.farng.mp3.id3.AbstractID3v2FrameBody
              org.farng.mp3.id3.FrameBodyAENC

public class FrameBodyAENC

extends AbstractID3v2FrameBody

4.19. Audio encryption

This frame indicates if the actual audio stream is encrypted, and by

whom. Since standardisation of such encryption scheme is beyond this
document, all "AENC" frames begin with a terminated string with a
URL containing an email address, or a link to a location where an
email address can be found, that belongs to the organisation

responsible for this specific encrypted audio file. Questions
regarding the encrypted audio should be sent to the email address
specified. If a $00 is found directly after the 'Frame size' and the
audio file indeed is encrypted, the whole file may be considered
useless.

After the 'Owner identifier', a pointer to an unencrypted part of the
audio can be specified. The 'Preview start' and 'Preview length' is
described in frames. If no part is unencrypted, these fields should
be left zeroed. After the 'preview length' field follows optionally a
data block required for decryption of the audio. There may be more

than one "AENC" frames in a tag, but only one with the same 'Owner
identifier'.

<Header for 'Audio encryption', ID: "AENC">
Owner identifier <text string> $00

Preview start $xx xx
Preview length $xx xx
Encryption info <binary data>

Version:

$Revision: 1.4 $

Author:

Eric Farng

Constructor Summary

FrameBodyAENC()
Creates a new FrameBodyAENC object.

FrameBodyAENC(FrameBodyAENC body)
Creates a new FrameBodyAENC object.

FrameBodyAENC(java.io.RandomAccessFile file)
Creates a new FrameBodyAENC object.

FrameBodyAENC(java.lang.String owner, short previewStart, short previewLength, byte[] data)
Creates a new FrameBodyAENC object.

Method Summary

java.lang.String	getIdentifier() ID string that usually corresponds to the class name, but can be displayed to the user.
java.lang.String	getOwner()
void	getOwner(java.lang.String description)
protected void	setupObjectList() Create the order of MP3Object objects that this body expects.

Methods inherited from class org.farng.mp3.id3.AbstractID3v2FrameBody

equals, readHeader, writeHeader

Methods inherited from class org.farng.mp3.AbstractMP3FragmentBody

appendToObjectList, getBriefDescription, getDescription, getObject, getObjectListIterator, getSize, has6ByteHeader, isSubsetOf, iterator, read, setObject, toString, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

FrameBodyAENC

public FrameBodyAENC()

Creates a new FrameBodyAENC object.

FrameBodyAENC

public FrameBodyAENC(FrameBodyAENC body)

Creates a new FrameBodyAENC object.

FrameBodyAENC

public FrameBodyAENC(java.lang.String owner,
                     short previewStart,
                     short previewLength,
                     byte[] data)

Creates a new FrameBodyAENC object.

FrameBodyAENC

public FrameBodyAENC(java.io.RandomAccessFile file)
              throws java.io.IOException,
                     InvalidTagException

Creates a new FrameBodyAENC object.

Method Detail

getIdentifier

public java.lang.String getIdentifier()

Description copied from class: AbstractMP3FileItem

ID string that usually corresponds to the class name, but can be displayed to the user. It is not indended to identify each individual instance.

Specified by:

getIdentifier in class AbstractMP3FileItem

Returns:

ID string

getOwner

public java.lang.String getOwner()

getOwner

public void getOwner(java.lang.String description)

setupObjectList

protected void setupObjectList()

Description copied from class: AbstractMP3FragmentBody

Create the order of MP3Object objects that this body expects. This method needs to be overwritten.

Specified by:

setupObjectList in class AbstractMP3FragmentBody