DecodeLZ77

Performs LZ77 decoding.

Syntax

IppStatus ippsDecodeLZ77_8u(IppLZ77Pair** ppSrc, int* pSrcLen, Ipp8u** ppDst, int* pDstLen, IppLZ77Flush flush, IppLZ77State_8u* pLZ77State);

Parameters

ppSrc	Double pointer to the source buffer.
pSrcLen	Pointer to the length of the source buffer.
ppDst	Double pointer to the destination buffer.
pDstLen	Pointer to the length of the destination buffer.
flush	Specifies the encoding mode for data blocks.
pLZ77State	Pointer to the LZ77 decoding structure.

Description

The function ippsDecodeLZ77 is declared in the ippdc.h file. This function performs LZ77 decoding of a sequence of pairs of the IppLZ77Pair type. The sliding wind ow technique implemented in this function ensures compatibility with the RFC1950, RFC1951, and RFC1952 specifications.

The function ippsDecodeLZ77 can be used for decoding data not only in the DEFLATE, ZLIB, GZIP format, but in any other format based on the LZ77 algorithm.

Code example shows how to use the ippsDecodeLZ77 function.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error if the pointer ppLZ77State is NULL.
ippStsSizeErr	Indicates an error if DstLen is less than or equal to 0.
ippStsDstSizeLessExpected	Indicates a warning that the destination buffer is full.