org.jaudiotagger.tag.mp4.field
Class Mp4TagCoverField

java.lang.Object
  org.jaudiotagger.tag.mp4.Mp4TagField
      org.jaudiotagger.tag.mp4.field.Mp4TagBinaryField
          org.jaudiotagger.tag.mp4.field.Mp4TagCoverField

All Implemented Interfaces:

TagField

public class Mp4TagCoverField
extends Mp4TagBinaryField

Represents Cover Art

Note:Within this library we have a seperate TagCoverField for every image stored, however this does not map very directly to how they are physically stored within a file, because all are stored under a single covr atom, so a more complex conversion has to be done then for other fields when writing multiple images back to file.

Field Summary

private int	dataAndHeaderSize
private Mp4FieldType	imageType

Fields inherited from class org.jaudiotagger.tag.mp4.field.Mp4TagBinaryField

dataBytes, dataSize, isBinary

Fields inherited from class org.jaudiotagger.tag.mp4.Mp4TagField

id, logger, parentHeader

Constructor Summary

Mp4TagCoverField()
Empty CoverArt Field

Mp4TagCoverField(byte[] data)
Construct new cover art with binarydata provided

Identifies the imageType by looking at the data

Mp4TagCoverField(java.nio.ByteBuffer raw, Mp4FieldType imageType)
Construct CoverField by reading data from audio file

Method Summary

protected void	build(java.nio.ByteBuffer raw) Processes the data and sets the position of the data buffer to just after the end of this fields data ready for processing next field.
int	getDataAndHeaderSize()
Mp4FieldType	getFieldType() Return field type, for artwork this also identifies the imagetype
static java.lang.String	getMimeTypeForImageType(Mp4FieldType imageType)
boolean	isBinary() Determines whether the represented field contains (is made up of) binary data, instead of text data. Software can identify fields to be displayed because they are human readable if this method returns false.
java.lang.String	toString() This method returns a human readable description of the fields contents. For text fields it should be the text itself.

Methods inherited from class org.jaudiotagger.tag.mp4.field.Mp4TagBinaryField

copyContent, getData, getDataBytes, getDataSize, isEmpty, setData

Methods inherited from class org.jaudiotagger.tag.mp4.Mp4TagField

getId, getIdBytes, getRawContent, getRawContentDataOnly, isBinary, isCommon

Methods inherited from class java.lang.Object

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

Field Detail

imageType

private Mp4FieldType imageType

dataAndHeaderSize

private int dataAndHeaderSize

Constructor Detail

Mp4TagCoverField

public Mp4TagCoverField()

Empty CoverArt Field

Mp4TagCoverField

public Mp4TagCoverField(java.nio.ByteBuffer raw,
                        Mp4FieldType imageType)
                 throws java.io.UnsupportedEncodingException

Construct CoverField by reading data from audio file

Parameters:

raw -

imageType -

Throws:

java.io.UnsupportedEncodingException

Mp4TagCoverField

public Mp4TagCoverField(byte[] data)

Construct new cover art with binarydata provided

Identifies the imageType by looking at the data

Parameters:

data -

Throws:

java.io.UnsupportedEncodingException

Method Detail

getDataAndHeaderSize

public int getDataAndHeaderSize()

Returns:

data and header size

getFieldType

public Mp4FieldType getFieldType()

Return field type, for artwork this also identifies the imagetype

Overrides:

getFieldType in class Mp4TagBinaryField

Returns:

field type

isBinary

public boolean isBinary()

Description copied from interface: TagField

Determines whether the represented field contains (is made up of) binary data, instead of text data.
Software can identify fields to be displayed because they are human readable if this method returns false.

Specified by:

isBinary in interface TagField

Overrides:

isBinary in class Mp4TagBinaryField

Returns:

true if field represents binary data (not human readable).

toString

public java.lang.String toString()

Description copied from interface: TagField

This method returns a human readable description of the fields contents.
For text fields it should be the text itself. Other fields containing images may return a formatted string with image properties like width, height and so on.

Specified by:

toString in interface TagField

Overrides:

toString in class java.lang.Object

Returns:

Description of the fields content.

build

protected void build(java.nio.ByteBuffer raw)

Description copied from class: Mp4TagField

Processes the data and sets the position of the data buffer to just after the end of this fields data ready for processing next field.

Overrides:

build in class Mp4TagBinaryField

getMimeTypeForImageType

public static java.lang.String getMimeTypeForImageType(Mp4FieldType imageType)

Parameters:

imageType -

Returns:

the corresponding mimetype