CADI.Common.LogicalTarget.JPEG2000.File
Class ReadJP2File

java.lang.Object
  CADI.Common.LogicalTarget.JPEG2000.File.ReadJP2File

All Implemented Interfaces:

JP2BoxIdentifiers

public class ReadJP2File
extends java.lang.Object
implements JP2BoxIdentifiers

This class reads a JP2 file.

Version:

1.1 2008/10/07

Author:

Group on Interactive Coding of Images (GICI)

Field Summary

private int	fileFormat Definition in JP2LogicalTarget.fileFormatType
private BufferedDataInputStream	in Is an object with the input stream where the main header is read from.
private boolean	jp2HeaderBoxFound Indicates whether the JP2 header box has been found.
private JPCParameters	jpcParameters Is an object where the main header are saved.
private long	mainHeaderInitialPos Is the file pointer to the first byte of the main header.
private int	mainHeaderLength Is the length of the main header.

Fields inherited from interface CADI.Common.LogicalTarget.JPEG2000.File.JP2BoxIdentifiers

BITS_PER_COMPONENT_BOX_TYPE, CAPTURE_RESOLUTION_BOX_TYPE, CHANNEL_DEFINITION_BOX_TYPE, COLOR_SPECIFICATION_BOX_TYPE, COMPONENT_MAPPING_BOX_TYPE, CONTIGUOUS_CODESTREAM_BOX_TYPE, DEFAULT_DISPLAY_RESOLUTION_BOX_TYPE, FILE_TYPE_BOX_BRAND, FILE_TYPE_BOX_TYPE, IMAGE_HEADER_BOX_TYPE, INTELLECTUAL_PROPERTY_BOX_TYPE, JP2_HEADER_BOX_TYPE, PALETTE_BOX_TYPE, RESOLUTION_BOX_TYPE, SIGNATURE_BOX_CONTENT, SIGNATURE_BOX_LENGTH, SIGNATURE_BOX_TYPE, UUID_BOX_TYPE, UUID_INFO_BOX_TYPE, XML_BOX_TYPE

Constructor Summary

ReadJP2File(BufferedDataInputStream in)
Constructor.

Method Summary

int	getFileFormat() Returns the fileFormat attribute.
JPCParameters	getJPCParameters() Returns the jpcParameters attribute.
long	getMainHeaderInitialPos() Returns the mainHeaderInitialPos attribute.
int	getMainHeaderLength() Returns the mainHeaderLength attribute.
private void	readContiguousCodestreamBox(long length) Reads the Contiguous Codestream Box and checks its conformity.
private void	readIntPropertyBox(long length)
private void	readUUIDBox(long length)
private void	readUUIDInfoBox(long length)
private void	readXMLBox(long length)
void	run() Reads the boxes of the JP2 headers and checks their conformity.

Methods inherited from class java.lang.Object

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

Field Detail

in

private BufferedDataInputStream in

Is an object with the input stream where the main header is read from.

jpcParameters

private JPCParameters jpcParameters

Is an object where the main header are saved.

mainHeaderInitialPos

private long mainHeaderInitialPos

Is the file pointer to the first byte of the main header.

mainHeaderLength

private int mainHeaderLength

Is the length of the main header.

fileFormat

private int fileFormat

Definition in JP2LogicalTarget.fileFormatType

jp2HeaderBoxFound

private boolean jp2HeaderBoxFound

Indicates whether the JP2 header box has been found.

Constructor Detail

ReadJP2File

public ReadJP2File(BufferedDataInputStream in)

Constructor.

Parameters:

in - input stream where data will be read from.

Method Detail

run

public void run()
         throws ErrorException,
                java.io.EOFException,
                java.io.IOException

Reads the boxes of the JP2 headers and checks their conformity.

Throws:

ErrorException - when the header information is ambiguous or incorrect

java.io.EOFException

java.io.IOException

getFileFormat

public int getFileFormat()

Returns the fileFormat attribute.

Returns:

the fileFormat attribute.

getJPCParameters

public JPCParameters getJPCParameters()

Returns the jpcParameters attribute.

Returns:

the jpcParameters attribute.

getMainHeaderInitialPos

public long getMainHeaderInitialPos()

Returns the mainHeaderInitialPos attribute.

Returns:

the mainHeaderInitialPos attribute.

getMainHeaderLength

public int getMainHeaderLength()

Returns the mainHeaderLength attribute.

Returns:

the mainHeaderLength attribute.

readContiguousCodestreamBox

private void readContiguousCodestreamBox(long length)
                                  throws ErrorException

Reads the Contiguous Codestream Box and checks its conformity.

Throws:

ErrorException - when the header information is ambiguous or incorrect

readIntPropertyBox

private void readIntPropertyBox(long length)
                         throws java.io.IOException

Parameters:

length -

Throws:

java.io.IOException

readXMLBox

private void readXMLBox(long length)
                 throws java.io.IOException

Parameters:

length -

Throws:

java.io.IOException

readUUIDBox

private void readUUIDBox(long length)
                  throws java.io.IOException

Parameters:

length -

Throws:

java.io.IOException

readUUIDInfoBox

private void readUUIDInfoBox(long length)
                      throws java.io.IOException

Parameters:

length -

Throws:

java.io.IOException