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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 99 | pmbaty | 1 | /* LzmaEnc.h -- LZMA Encoder |
| 2 | 2008-10-04 : Igor Pavlov : Public domain */ |
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| 3 | |||
| 4 | #ifndef __LZMAENC_H |
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| 5 | #define __LZMAENC_H |
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| 6 | |||
| 7 | #include "Types.h" |
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| 8 | |||
| 9 | #define LZMA_PROPS_SIZE 5 |
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| 10 | |||
| 11 | typedef struct _CLzmaEncProps |
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| 12 | { |
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| 13 | int level; /* 0 <= level <= 9 */ |
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| 14 | UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version |
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| 15 | (1 << 12) <= dictSize <= (1 << 30) for 64-bit version |
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| 16 | default = (1 << 24) */ |
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| 17 | int lc; /* 0 <= lc <= 8, default = 3 */ |
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| 18 | int lp; /* 0 <= lp <= 4, default = 0 */ |
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| 19 | int pb; /* 0 <= pb <= 4, default = 2 */ |
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| 20 | int algo; /* 0 - fast, 1 - normal, default = 1 */ |
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| 21 | int fb; /* 5 <= fb <= 273, default = 32 */ |
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| 22 | int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ |
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| 23 | int numHashBytes; /* 2, 3 or 4, default = 4 */ |
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| 24 | UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ |
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| 25 | unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ |
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| 26 | int numThreads; /* 1 or 2, default = 2 */ |
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| 27 | } CLzmaEncProps; |
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| 28 | |||
| 29 | void LzmaEncProps_Init(CLzmaEncProps *p); |
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| 30 | void LzmaEncProps_Normalize(CLzmaEncProps *p); |
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| 31 | UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); |
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| 32 | |||
| 33 | |||
| 34 | /* ---------- CLzmaEncHandle Interface ---------- */ |
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| 35 | |||
| 36 | /* LzmaEnc_* functions can return the following exit codes: |
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| 37 | Returns: |
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| 38 | SZ_OK - OK |
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| 39 | SZ_ERROR_MEM - Memory allocation error |
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| 40 | SZ_ERROR_PARAM - Incorrect paramater in props |
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| 41 | SZ_ERROR_WRITE - Write callback error. |
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| 42 | SZ_ERROR_PROGRESS - some break from progress callback |
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| 43 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) |
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| 44 | */ |
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| 45 | |||
| 46 | typedef void * CLzmaEncHandle; |
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| 47 | |||
| 48 | CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc); |
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| 49 | void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); |
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| 50 | SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); |
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| 51 | SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); |
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| 52 | SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, |
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| 53 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
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| 54 | SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, |
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| 55 | int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
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| 56 | |||
| 57 | /* ---------- One Call Interface ---------- */ |
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| 58 | |||
| 59 | /* LzmaEncode |
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| 60 | Return code: |
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| 61 | SZ_OK - OK |
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| 62 | SZ_ERROR_MEM - Memory allocation error |
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| 63 | SZ_ERROR_PARAM - Incorrect paramater |
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| 64 | SZ_ERROR_OUTPUT_EOF - output buffer overflow |
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| 65 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) |
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| 66 | */ |
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| 67 | |||
| 68 | SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, |
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| 69 | const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, |
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| 70 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
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| 71 | |||
| 72 | #endif |