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/* LzmaEnc.h -- LZMA Encoder
2009-02-07 : Igor Pavlov : Public domain */
#ifndef __LZMA_ENC_H
#define __LZMA_ENC_H
#include "Types.h"
#define LZMA_PROPS_SIZE 5
struct CLzmaEncProps
{
int level; /* 0 <= level <= 9 */
uint32_t dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
(1 << 12) <= dictSize <= (1 << 30) for 64-bit version
default = (1 << 24) */
int lc; /* 0 <= lc <= 8, default = 3 */
int lp; /* 0 <= lp <= 4, default = 0 */
int pb; /* 0 <= pb <= 4, default = 2 */
int algo; /* 0 - fast, 1 - normal, default = 1 */
int fb; /* 5 <= fb <= 273, default = 32 */
int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
int numHashBytes; /* 2, 3 or 4, default = 4 */
uint32_t mc; /* 1 <= mc <= (1 << 30), default = 32 */
unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
int numThreads; /* 1 or 2, default = 2 */
};
void LzmaEncProps_Init(struct CLzmaEncProps *p);
void LzmaEncProps_Normalize(struct CLzmaEncProps *p);
uint32_t LzmaEncProps_GetDictSize(const struct CLzmaEncProps *props2);
/* ---------- CLzmaEncHandle Interface ---------- */
/* LzmaEnc_* functions can return the following exit codes:
Returns:
SZ_OK - OK
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_PARAM - Incorrect paramater in props
SZ_ERROR_WRITE - Write callback error.
SZ_ERROR_PROGRESS - some break from progress callback
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
*/
typedef void * CLzmaEncHandle;
CLzmaEncHandle LzmaEnc_Create(struct ISzAlloc *alloc);
void LzmaEnc_Destroy(CLzmaEncHandle p, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
SRes LzmaEnc_SetProps(CLzmaEncHandle p, const struct CLzmaEncProps *props);
SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, uint8_t *properties, size_t *size);
SRes LzmaEnc_Encode(CLzmaEncHandle p, struct ISeqOutStream *outStream, struct ISeqInStream *inStream,
struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
SRes LzmaEnc_MemEncode(CLzmaEncHandle p, uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
int writeEndMark, struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
/* ---------- One Call Interface ---------- */
/* LzmaEncode
Return code:
SZ_OK - OK
SZ_ERROR_MEM - Memory allocation error
SZ_ERROR_PARAM - Incorrect paramater
SZ_ERROR_OUTPUT_EOF - output buffer overflow
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
*/
SRes LzmaEncode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
const struct CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize, int writeEndMark,
struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
#endif
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