de.ueberdosis.mp3info.id3v2
Class FrameAENC
java.lang.Object
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+--de.ueberdosis.mp3info.id3v2.ID3V2Frame
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+--de.ueberdosis.mp3info.id3v2.FrameAENC
- All Implemented Interfaces:
- Defines
- public class FrameAENC
- extends ID3V2Frame
Audio encryption
This frame indicates if the actual audio stream is encrypted, and by whom.
Since standardisation of such encrypion 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 audiofile 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 datablock 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'.
Owner identifier $00
Preview start $xx xx
Preview length $xx xx
Encryption info
Constructor Summary |
FrameAENC(de.ueberdosis.mp3info.id3v2.ID3V2Frame frame)
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FrameAENC(de.ueberdosis.mp3info.id3v2.ID3V2Frame frm,
de.ueberdosis.mp3info.id3v2.DataSource ds)
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Methods inherited from class de.ueberdosis.mp3info.id3v2.ID3V2Frame |
containsData, createPanel, deprecatedSince, equals, getData, getDataLengthIndicator, getFileAlterPreservation, getFrameID, getSize, getTagAlterPreservation, getUnsynchronisation, hasGroupingIdentity, isAltered, isCompressed, isEncrypted, isReadOnly, isValid, toByteArray |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
FrameAENC
public FrameAENC(de.ueberdosis.mp3info.id3v2.ID3V2Frame frame)
FrameAENC
public FrameAENC(de.ueberdosis.mp3info.id3v2.ID3V2Frame frm,
de.ueberdosis.mp3info.id3v2.DataSource ds)
throws SeekPastEndException
getLongName
public java.lang.String getLongName()
legalSince
public int legalSince()
- Description copied from class:
ID3V2Frame
- Informs since which version of ID3V2 this Frame is legal
Only major versions are supported (eg. 4 stands for ID3 v 2.4.0)
- Overrides:
legalSince
in class ID3V2Frame
- Returns:
- a number between 0 and (currently) 4. -1 means the actual
frame didn't overwrite the method.
toString
public java.lang.String toString()
- Overrides:
toString
in class ID3V2Frame
getOwnerIdentifier
public java.lang.String getOwnerIdentifier()
setOwnerIdentifier
public void setOwnerIdentifier(java.lang.String s)
getPreviewStart
public int getPreviewStart()
setPreviewStart
public void setPreviewStart(int s)
getPreviewLength
public int getPreviewLength()
setPreviewLength
public void setPreviewLength(int l)
getEncryptionInfo
public byte[] getEncryptionInfo()
- Returns:
- copy of the contained data
setEncryptionInfo
public void setEncryptionInfo(byte[] b)
canDisplay
public boolean canDisplay()
- Can be displayed
- Overrides:
canDisplay
in class ID3V2Frame
canEdit
public boolean canEdit()
- Can not be edited
- Overrides:
canEdit
in class ID3V2Frame
createJPanel
public de.ueberdosis.mp3info.gui.Id3JPanel createJPanel(boolean edit,
boolean selfupdate)
- Description copied from class:
ID3V2Frame
- Creates a JPanel to display or edit the contents of the frame.
To be overwritten by subclasses.
The results of canDisplay / canEdit are only binding for this
method (ie. for JPanels). AWT-Panels may or may not be
implemented.
- Overrides:
createJPanel
in class ID3V2Frame
- Parameters:
edit
- switches between display- (false) and edit-mode (true)selfupdate
- switches if the created component takes care of
updating its data or not. Generally this means that the component
carries its own update-button.
Of course, selfupdate is useless without edit set to true.
- Returns:
- a JPanel that can be used to display or edit the contents