Intel® Integrated Performance Primitives Developer Guide and Reference

ID 790148
Date 11/07/2023
Public

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Document Table of Contents

UnpackHuffContext_BZ2

Performs the bzip2-specific decoding of Huffman context.

Syntax

IppStatus ippsUnpackHuffContext_BZ2_8u16u(Ipp32u* pCode, int* pCodeLenBits, Ipp8u** ppSrc, int* pSrcLen, IppDecodeHuffState_BZ2* pDecodeHuffState);

Include Files

ippdc.h

Domain Dependencies

Headers: ippcore.h, ippvm.h, ipps.h

Libraries: ippcore.lib, ippvm.lib, ipps.lib

Parameters

pCode

Pointer to the bit buffer.

pCodeLenBits

Number of valid bits in the bit buffer.

ppSrc

Double pointer to the source vector.

pSrcLen

Pointer to the size of source buffer on input, pointer to the resulting length of the source vector on output.

pDecodeHuffState

Pointer to internal state structure for bzip2 specific Huffman decoding.

Description

This function performs the bzip2-specific decoding of the Huffman context. The function uses the bzip2-specific Huffman decoding state structure pDecodeHuffState. This structure must be initialized by ippsDecodeHuffInit_BZ2 beforehand.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

Indicates an error if one of the pointers is NULL.

ippStsSizeErr

Indicates an error if length of the destination buffer is less than or equal to 0.

ippStsSrcSizeLessExpected

Indicates a warning if size of the source buffer is insufficient to store all output elements.