Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

EncodeLZSS

Performs LZSS encoding.

Syntax

IppStatus ippsEncodeLZSS_8u (Ipp8u**
ppSrc
, int*
pSrcLen
, Ipp8u**
ppDst
, int*
pDstLen
, IppLZSSState_8u*
pLZSSState
);
Include Files
ippdc.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
,
ipps.h
Libraries:
ippcore.lib
,
ippvm.lib
,
ipps.lib
Parameters
ppSrc
Double pointer to the source buffer.
pSrcLen
Pointer to the number of elements in the source buffer; it is updated after encoding.
ppDst
Double pointer to the destination buffer.
pDstLen
Pointer to the length of the destination buffer; it is updated and returns the length of the destination buffer after encoding.
pLZSSState
Pointer to the LZSS encoding state structure.
Description
This function performs LZSS encoding of data in the source buffer
ppSrc
of length
pSrcLen
and stores the result in the destination buffer
pDst
of length
pDstLen
. The LZSS encoder state structure
pLZSSState
must be initialized by
ippsEncodeLZSSInit
beforehand.
After encoding the function returns the pointers to source and destination buffers shifted by the number of successfully read and encoded bytes, respectively. The function updates
pSrcLen
and
pDstLen
so they return the actual number of elements in the source and destination buffers respectively.
Code example shows how to use the function
ippsEncodeLZSS_8u
and supporting functions.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error if one of the specified pointers is
NULL
.
ippStsSizeErr
Indicates an error if
srcLen
is less than or equal to 0.
ippStsDstSizeLessExpected
Indicates a warning that the size of the destination buffer is insufficient for completing the operation.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804