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- /* LzmaEnc.h -- LZMA Encoder
- 2008-10-04 : Igor Pavlov : Public domain */
- #ifndef __LZMAENC_H
- #define __LZMAENC_H
- #include "Types.h"
- #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);
- void LzmaEncProps_Normalize(CLzmaEncProps *p);
- UInt32 LzmaEncProps_GetDictSize(const 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(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_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
- SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
- int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, 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(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
- const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
- ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
- #endif
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