| 1 | /* LzmaEnc.h -- LZMA Encoder
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| 2 | 2008-04-27
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| 3 | Copyright (c) 1999-2008 Igor Pavlov
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| 4 | Read LzFind.h for license options */
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| 5 |
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| 6 | #ifndef __LZMAENC_H
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| 7 | #define __LZMAENC_H
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| 8 |
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| 9 | #include "Types.h"
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| 10 |
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| 11 | #define LZMA_PROPS_SIZE 5
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| 12 |
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| 13 | typedef struct _CLzmaEncProps
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| 14 | {
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| 15 | int level; /* 0 <= level <= 9 */
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| 16 | UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
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| 17 | (1 << 12) <= dictSize <= (1 << 30) for 64-bit version
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| 18 | default = (1 << 24) */
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| 19 | int lc; /* 0 <= lc <= 8, default = 3 */
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| 20 | int lp; /* 0 <= lp <= 4, default = 0 */
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| 21 | int pb; /* 0 <= pb <= 4, default = 2 */
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| 22 | int algo; /* 0 - fast, 1 - normal, default = 1 */
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| 23 | int fb; /* 5 <= fb <= 273, default = 32 */
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| 24 | int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
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| 25 | int numHashBytes; /* 2, 3 or 4, default = 4 */
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| 26 | UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */
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| 27 | unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
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| 28 | int numThreads; /* 1 or 2, default = 2 */
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| 29 | } CLzmaEncProps;
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| 30 |
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| 31 | void LzmaEncProps_Init(CLzmaEncProps *p);
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| 32 | void LzmaEncProps_Normalize(CLzmaEncProps *p);
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| 33 | UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
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| 34 |
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| 35 |
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| 36 | /* ---------- CLzmaEncHandle Interface ---------- */
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| 37 |
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| 38 | /* LzmaEnc_* functions can return the following exit codes:
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| 39 | Returns:
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| 40 | SZ_OK - OK
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| 41 | SZ_ERROR_MEM - Memory allocation error
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| 42 | SZ_ERROR_PARAM - Incorrect paramater in props
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| 43 | SZ_ERROR_WRITE - Write callback error.
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| 44 | SZ_ERROR_PROGRESS - some break from progress callback
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| 45 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
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| 46 | */
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| 47 |
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| 48 | typedef void * CLzmaEncHandle;
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| 49 |
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| 50 | CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);
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| 51 | void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
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| 52 | SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
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| 53 | SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
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| 54 | SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
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| 55 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
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| 56 | SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
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| 57 | int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
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| 58 |
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| 59 | /* ---------- One Call Interface ---------- */
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| 60 |
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| 61 | /* LzmaEncode
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| 62 | Return code:
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| 63 | SZ_OK - OK
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| 64 | SZ_ERROR_MEM - Memory allocation error
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| 65 | SZ_ERROR_PARAM - Incorrect paramater
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| 66 | SZ_ERROR_OUTPUT_EOF - output buffer overflow
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| 67 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
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| 68 | */
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| 69 |
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| 70 | SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
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| 71 | const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
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| 72 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
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| 73 |
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| 74 | #endif
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