OpenJDK 27 · com.sun.imageio.plugins.tiff.TIFFT4Compressor

Modifier and Type	Field and Description
private boolean	is1DMode
private boolean	isEOLAligned

Access	Constructor and Description
public	TIFFT4Compressor()

Method Summary

Modifier and Type	Method and Description
public int	encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride) Implements abstract com.sun.imageio.plugins.tiff.TIFFCompressor.encode. Encodes the supplied image data, writing to the currently set `ImageOutputStream`.
public int	Returns: The number of bytes saved in the compressed data array. encodeT4(boolean Whether to perform one-dimensional encoding. is1DMode, boolean Whether EOL bit sequences should be padded. isEOLAligned, byte[] The row of data to compress. data, int Byte step between the same sample in different rows. lineStride, int Bit offset within first `data[rowOffset]`. colOffset, int Number of bits in the row. width, int Number of rows in the buffer. height, byte[] The compressed data. compData) Encode a buffer of data using CCITT T.4 Compression also known as Group 3 facsimile compression.
public void	setMetadata(IIOMetadata the `IIOMetadata` object for the image being written. metadata) Overrides com.sun.imageio.plugins.tiff.TIFFFaxCompressor.setMetadata. Sets the value of the `metadata` field.

Inherited from com.sun.imageio.plugins.tiff.TIFFFaxCompressor:: add1DBits add2DBits addEOFB addEOL encode1D initBitBuf nextState

is1DMode	back to summary
private boolean is1DMode

isEOLAligned	back to summary
private boolean isEOLAligned

TIFFT4Compressor	back to summary
public TIFFT4Compressor()

encode back to summary

encode	back to summary
public int encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride) throws IOException Implements abstract com.sun.imageio.plugins.tiff.TIFFCompressor.encode. Doc from com.sun.imageio.plugins.tiff.TIFFCompressor.encode. Encodes the supplied image data, writing to the currently set `ImageOutputStream`. Annotations @Override Exceptions IOException: if the supplied data cannot be encoded by this `TIFFCompressor`, or if any I/O error occurs during writing.

public int encode(byte[] b, int off, int width, int height, int[] bitsPerSample, int scanlineStride) throws IOException

Encodes the supplied image data, writing to the currently set ImageOutputStream.

Annotations

Exceptions

IOException:: if the supplied data cannot be encoded by this TIFFCompressor, or if any I/O error occurs during writing.

encodeT4 back to summary

encodeT4	back to summary
public int encodeT4(boolean is1DMode, boolean isEOLAligned, byte[] data, int lineStride, int colOffset, int width, int height, byte[] compData) Encode a buffer of data using CCITT T.4 Compression also known as Group 3 facsimile compression. Parameters is1DMode:boolean Whether to perform one-dimensional encoding. isEOLAligned:boolean Whether EOL bit sequences should be padded. data:byte[] The row of data to compress. lineStride:int Byte step between the same sample in different rows. colOffset:int Bit offset within first `data[rowOffset]`. width:int Number of bits in the row. height:int Number of rows in the buffer. compData:byte[] The compressed data. Returns:int The number of bytes saved in the compressed data array.

public int encodeT4(boolean is1DMode, boolean isEOLAligned, byte[] data, int lineStride, int colOffset, int width, int height, byte[] compData)

Encode a buffer of data using CCITT T.4 Compression also known as Group 3 facsimile compression.

Parameters

Returns:int

The number of bytes saved in the compressed data array.

setMetadata back to summary

public void setMetadata(IIOMetadata metadata)

Sets the value of the metadata field.

The implementation in this class also sets local options from the T4_OPTIONS field if it exists, and if it doesn't, adds it with default values.

Parameters

Annotations

See Also

getMetadata()