/* LzmaEnc.h -- LZMA Encoder 2009-02-07 : Igor Pavlov : Public domain */ #ifndef __LZMA_ENC_H #define __LZMA_ENC_H #include "Types.h" #ifdef __cplusplus extern "C" { #endif #define LZMA_PROPS_SIZE 5 typedef struct _CLzmaEncProps { int level; /* 0 <= level <= 9 */ UInt32 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 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 */ } CLzmaEncProps; void LzmaEncProps_Init(CLzmaEncProps *p); /* ---------- 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(ISzAlloc *alloc); void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); #ifdef __cplusplus } #endif #endif