loci.formats.codec

Interface Codec

All Known Implementing Classes:

Base64Codec, BaseCodec, HuffmanCodec, JPEG2000Codec, JPEGCodec, JPEGXRCodec, LosslessJPEGCodec, LuraWaveCodec, LZOCodec, LZWCodec, MJPBCodec, MSRLECodec, MSVideoCodec, NikonCodec, PackbitsCodec, PassthroughCodec, QTRLECodec, RPZACodec, TargaRLECodec, ZlibCodec

public interface Codec

This class is an interface for any kind of compression or decompression. Data is presented to the compressor in a 1D or 2D byte array, with (optionally, depending on the compressor) pixel dimensions and an Object containing any other options the compressor may need. If an argument is not appropriate for the compressor type, it is expected to completely ignore the argument. i.e.: Passing a compressor that does not require pixel dimensions null for the dimensions must not cause the compressor to throw a NullPointerException. Classes implementing the Codec interface are expected to either implement both compression methods or neither. (The same is expected for decompression).

Author:

Eric Kjellman egkjellman at wisc.edu

Method Summary

Modifier and Type	Method and Description
byte[]	compress(byte[][] data, CodecOptions options) Compresses a block of data.
byte[]	compress(byte[] data, CodecOptions options) Compresses a block of data.
byte[]	decompress(byte[] data) Decompresses a block of data.
byte[]	decompress(byte[][] data) Decompresses a block of data.
byte[]	decompress(byte[][] data, CodecOptions options) Decompresses a block of data.
byte[]	decompress(byte[] data, CodecOptions options) Decompresses a block of data.
byte[]	decompress(loci.common.RandomAccessInputStream in, CodecOptions options) Decompresses data from the given RandomAccessInputStream.

Method Detail

compress

byte[] compress(byte[] data,
                CodecOptions options)
         throws FormatException

Compresses a block of data.

Parameters:

data - The data to be compressed.

options - Options to be used during compression, if appropriate.

Returns:

The compressed data.

Throws:

FormatException - If input is not a compressed data block of the appropriate type.

compress

byte[] compress(byte[][] data,
                CodecOptions options)
         throws FormatException

Compresses a block of data.

Parameters:

data - The data to be compressed.

options - Options to be used during compression, if appropriate.

Returns:

The compressed data.

Throws:

FormatException - If input is not a compressed data block of the appropriate type.

decompress

byte[] decompress(byte[] data,
                  CodecOptions options)
           throws FormatException

Decompresses a block of data.

Parameters:

data - the data to be decompressed

options - Options to be used during decompression.

Returns:

the decompressed data.

Throws:

FormatException - If data is not valid.

decompress

byte[] decompress(byte[][] data,
                  CodecOptions options)
           throws FormatException

Decompresses a block of data.

Parameters:

data - the data to be decompressed

options - Options to be used during decompression.

Returns:

the decompressed data.

Throws:

FormatException - If data is not valid.

decompress

byte[] decompress(byte[] data)
           throws FormatException

Decompresses a block of data.

Parameters:

data - the data to be decompressed.

Returns:

The decompressed data.

Throws:

FormatException - If data is not valid compressed data for this decompressor.

decompress

byte[] decompress(byte[][] data)
           throws FormatException

Decompresses a block of data.

Parameters:

data - The data to be decompressed.

Returns:

The decompressed data.

Throws:

FormatException - If data is not valid compressed data for this decompressor.

decompress

byte[] decompress(loci.common.RandomAccessInputStream in,
                  CodecOptions options)
           throws FormatException,
                  IOException

Decompresses data from the given RandomAccessInputStream.

Parameters:

in - The stream from which to read compressed data.

options - Options to be used during decompression.

Returns:

The decompressed data.

Throws:

FormatException - If data is not valid compressed data for this decompressor.

IOException