Class CompressorHuffmanTree

Represents the Huffman Tree.

Inheritance

System.Object

CompressorHuffmanTree

Namespace: Syncfusion.Compression

Assembly: Syncfusion.Compression.Portable.dll

Syntax

public class CompressorHuffmanTree : Object

Constructors

CompressorHuffmanTree(CompressedStreamWriter, Int32, Int32, Int32)

Create a new Huffman tree

Declaration

public CompressorHuffmanTree(CompressedStreamWriter writer, int iElementsCount, int iMinimumCodes, int iMaximumLength)

Parameters

Type	Name	Description
CompressedStreamWriter	writer
System.Int32	iElementsCount
System.Int32	iMinimumCodes
System.Int32	iMaximumLength

Properties

CodeFrequences

Code frequences.

Declaration

public short[] CodeFrequences { get; }

Property Value

Type
System.Int16[]

CodeLengths

Lengths of codes in tree.

Declaration

public byte[] CodeLengths { get; }

Property Value

Type
System.Byte[]

TreeLength

Length of the tree.

Declaration

public int TreeLength { get; }

Property Value

Type
System.Int32

Methods

BuildCodes()

Calculates codes from their frequences.

Declaration

public void BuildCodes()

BuildTree()

Builds tree.

Declaration

public void BuildTree()

CalcBLFreq(CompressorHuffmanTree)

Calculates code frequences.

Declaration

public void CalcBLFreq(CompressorHuffmanTree blTree)

Parameters

Type	Name	Description
CompressorHuffmanTree	blTree	Tree.

CheckEmpty()

Checks wheather tree is empty. If tree is not empty, then exception will be raised.

Declaration

public void CheckEmpty()

GetEncodedLength()

Calculates length of the compressed data.

Declaration

public int GetEncodedLength()

Returns

Type	Description
System.Int32	Count of bits, the data will occupy.

Reset()

Resets all code data in tree.

Declaration

public void Reset()

SetStaticCodes(Int16[], Byte[])

Specifies new arrays of codes and their lengths.

Declaration

public void SetStaticCodes(short[] codes, byte[] lengths)

Parameters

Type	Name	Description
System.Int16[]	codes	Array of codes.
System.Byte[]	lengths	Array of code lengths.

WriteCodeToStream(Int32)

Writes code to the compressor output stream.

Declaration

public void WriteCodeToStream(int code)

Parameters

Type	Name	Description
System.Int32	code	Code to be written.

WriteTree(CompressorHuffmanTree)

Writes tree to output stream.

Declaration

public void WriteTree(CompressorHuffmanTree blTree)

Parameters

Type	Name	Description
CompressorHuffmanTree	blTree	Tree to be written.