| /* 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 |
| |
| typedef 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 */ |
| } CLzmaEncProps; |
| |
| void LzmaEncProps_Init(CLzmaEncProps *p); |
| void LzmaEncProps_Normalize(CLzmaEncProps *p); |
| uint32_t 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, uint8_t *properties, size_t *size); |
| SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, |
| ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
| SRes LzmaEnc_MemEncode(CLzmaEncHandle p, uint8_t *dest, size_t *destLen, const uint8_t *src, size_t 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(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen, |
| const CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize, int writeEndMark, |
| ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
| |
| #endif |