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/* LzmaLib.c -- LZMA library wrapper

2023-04-02 : Igor Pavlov : Public domain */

#include "Precomp.h"

#include "Alloc.h"

#include "LzmaDec.h"

#include "LzmaEnc.h"

#include "LzmaLib.h"

Z7_STDAPI LzmaCompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t srcLen,

unsigned char *outProps, size_t *outPropsSize,

int level, /* 0 <= level <= 9, default = 5 */

unsigned dictSize, /* use (1 << N) or (3 << N). 4 KB < dictSize <= 128 MB */

int lc, /* 0 <= lc <= 8, default = 3 */

int lp, /* 0 <= lp <= 4, default = 0 */

int pb, /* 0 <= pb <= 4, default = 2 */

int fb, /* 5 <= fb <= 273, default = 32 */

int numThreads /* 1 or 2, default = 2 */

)

{

CLzmaEncProps props;

LzmaEncProps_Init(&props);

props.level = level;

props.dictSize = dictSize;

props.lc = lc;

props.lp = lp;

props.pb = pb;

props.fb = fb;

props.numThreads = numThreads;

return LzmaEncode(dest, destLen, src, srcLen, &props, outProps, outPropsSize, 0,

NULL, &g_Alloc, &g_Alloc);

}

Z7_STDAPI LzmaUncompress(unsigned char *dest, size_t *destLen, const unsigned char *src, size_t *srcLen,

const unsigned char *props, size_t propsSize)

{

ELzmaStatus status;

return LzmaDecode(dest, destLen, src, srcLen, props, (unsigned)propsSize, LZMA_FINISH_ANY, &status, &g_Alloc);

}