Developer Reference for Intel® Integrated Performance Primitives 2018

DecodeLZ4

Performs LZ4 decoding.

Syntax

IppStatus ippsDecodeLZ4_8u(const Ipp8u* pSrc, int srcLen, Ipp8u* pDst, int* pDstLen);

IppStatus ippsDecodeLZ4Dict_8u(const Ipp8u* pSrc, int* pSrcLen, Ipp8u* pDst, int dstIdx, int* pDstLen, const Ipp8u* pDict, int dictSize);

Include Files

ippdc.h

Domain Dependencies

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

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

Parameters

pSrc

Pointer to the source data.

srcLen

Length of the source data for decompression.

pSrcLen

Pointer to the length of the source data for decompression.

pDst

Pointer to the compressed data.

pDstLen

Pointer to the length of the uncompressed data.

dstIdx

Index of the starting byte in the destination vector.

pDict

Pointer to the dictionary.

dictSize

Length of the dictionary.

Description

This function performs decoding of the source data pSrc using the LZ4 algorithm. The destination buffer must have sufficient length for the operation. The length of the uncompressed data is set to pDstLen.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

Indicates an error if at lease one of the specified pointers is NULL.

ippStsSizeErr

Indicates an error if the srcLen value is less than, or equal to zero.

ippStsMemAllocErr

Indicates an error if the size of the allocated memory is not sufficient for decompression.

Example

LZ4.c