de.quippy.javamod.multimedia.mp3.id3

Class ID3v2ExtendedHeader

java.lang.Object

de.quippy.javamod.multimedia.mp3.id3.ID3v2ExtendedHeader

public class ID3v2ExtendedHeader
extends Object

Description: If the id3v2 tag has an extended header, this class will read/write the information contained within it. NOTE: this class is untested and has no mutators. In other words, this class will only be used if an mp3 already has an extended header (at this point at least).

Constructor Summary

Constructors

Constructor and Description
ID3v2ExtendedHeader(RandomAccessInputStream raf) Create an extended header object from the file passed.

Method Summary

Methods

Modifier and Type	Method and Description
byte[]	getBytes() Return an array of bytes representing this extended header in the standard format to be written to a file.
byte[]	getCRC() If there is crc data in the extended header, then the attached 5 byte crc will be returned.
boolean	getCRCed() Returns true if CRC information is provided for this tag
boolean	getImageEncode() Returns true if the image encode flag is set
int	getImageRestriction() Returns the value of the image restriction field or -1 if not set
int	getMaxFrames() Returns the maximum number of frames if set.
int	getMaxTagSize() Returns the maximum tag size or -1 if unset
int	getMaxTextSize() Returns the maximum length of a string if set or -1
int	getNumFlagBytes() Returns the number of extended flag bytes
int	getSize() Returns the size of the extended header
boolean	getTextEncode() Returns true if the text encode flag is set
boolean	getUpdate() Returns true if this tag is an update of a previous tag
String	toString() Returns a string representation of this object that contains all information within.

Methods inherited from class java.lang.Object

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

Constructor Detail

ID3v2ExtendedHeader

public ID3v2ExtendedHeader(RandomAccessInputStream raf)
                    throws IOException,
                           ID3v2FormatException

Create an extended header object from the file passed. Information in the file's extended header will be read and stored.

Parameters:

mp3 - the file to read/write to

Throws:

FileNotFoundException - if an error occurs

IOException - if an error occurs

ID3v2FormatException - if an error occurs

Method Detail

getBytes

public byte[] getBytes()

Return an array of bytes representing this extended header in the standard format to be written to a file.

Returns:

a binary represenation of this extended header

getSize

public int getSize()

Returns the size of the extended header

Returns:

the size of the extended header

getNumFlagBytes

public int getNumFlagBytes()

Returns the number of extended flag bytes

Returns:

the number of extended flag bytes

getMaxFrames

public int getMaxFrames()

Returns the maximum number of frames if set. If unset, returns -1

Returns:

the maximum number of frames or -1 if unset

getMaxTagSize

public int getMaxTagSize()

Returns the maximum tag size or -1 if unset

Returns:

the maximum tag size or -1 if unset

getTextEncode

public boolean getTextEncode()

Returns true if the text encode flag is set

Returns:

true if the text encode flag is set

getMaxTextSize

public int getMaxTextSize()

Returns the maximum length of a string if set or -1

Returns:

the maximum length of a string if set or -1

getImageEncode

public boolean getImageEncode()

Returns true if the image encode flag is set

Returns:

true if the image encode flag is set

getImageRestriction

public int getImageRestriction()

Returns the value of the image restriction field or -1 if not set

Returns:

the value of the image restriction field or -1 if not set

getUpdate

public boolean getUpdate()

Returns true if this tag is an update of a previous tag

Returns:

true if this tag is an update of a previous tag

getCRCed

public boolean getCRCed()

Returns true if CRC information is provided for this tag

Returns:

true if CRC information is provided for this tag

getCRC

public byte[] getCRC()

If there is crc data in the extended header, then the attached 5 byte crc will be returned. An empty array will be returned if this has not been set.

Returns:

the attached crc data if there is any

toString

public String toString()

Returns a string representation of this object that contains all information within.

Overrides:

toString in class Object

Returns:

a string representation of this object