DeflateDictionarySet

Presets the user's dictionary for LZ77 encoding.

Syntax

IppStatus ippsDeflateDictionarySet_8u(const Ipp8u* pDictSrc, Ipp32u dictLen, Ipp32s* pHashHeadDst, Ipp32u hashSize, Ipp32s* pHashPrevDst, Ipp8u* pWindowDst, Ipp32u winSize, int comprLevel);

Parameters

pDictSrc	Pointer to the user's dictionary.
dictLen	Length of the user's dictionary.
pHashHeadDst	Pointer to the table containing heads of the hash chains.
pHashPrevDst	Pointer to the table containing indexes to the previous strings with the same hash key.
hashSize	Size of the pHashHeadDst table.
pWindowDst	Pointer to the sliding window that is used as the dictionary for LZ77 encoding.
winSize	Size of the sliding window and the elements of the pHashPrevDst table.
comprLevel	Compression level in range [0..9] in accordance with ZLIB.

Description

The function ippsDeflateDictionarySet is declared in the ippdc.h file. This function presets the user's dictionary for LZ77 encoding.

Return Values

ippStsNoErr	Indicates no error.
ippStsNullPtrErr	Indicates an error if one of the specified pointers is NULL.