73 lines
2.9 KiB
C
73 lines
2.9 KiB
C
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/* LzmaEnc.h -- LZMA Encoder
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2009-02-07 : Igor Pavlov : Public domain */
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#ifndef __LZMA_ENC_H
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#define __LZMA_ENC_H
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#include "Types.h"
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#define LZMA_PROPS_SIZE 5
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struct CLzmaEncProps
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{
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int level; /* 0 <= level <= 9 */
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uint32_t dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
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(1 << 12) <= dictSize <= (1 << 30) for 64-bit version
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default = (1 << 24) */
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int lc; /* 0 <= lc <= 8, default = 3 */
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int lp; /* 0 <= lp <= 4, default = 0 */
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int pb; /* 0 <= pb <= 4, default = 2 */
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int algo; /* 0 - fast, 1 - normal, default = 1 */
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int fb; /* 5 <= fb <= 273, default = 32 */
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int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
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int numHashBytes; /* 2, 3 or 4, default = 4 */
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uint32_t mc; /* 1 <= mc <= (1 << 30), default = 32 */
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unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
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int numThreads; /* 1 or 2, default = 2 */
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};
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void LzmaEncProps_Init(struct CLzmaEncProps *p);
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void LzmaEncProps_Normalize(struct CLzmaEncProps *p);
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uint32_t LzmaEncProps_GetDictSize(const struct CLzmaEncProps *props2);
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/* ---------- CLzmaEncHandle Interface ---------- */
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/* LzmaEnc_* functions can return the following exit codes:
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Returns:
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SZ_OK - OK
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SZ_ERROR_MEM - Memory allocation error
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SZ_ERROR_PARAM - Incorrect parameter in props
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SZ_ERROR_WRITE - Write callback error.
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SZ_ERROR_PROGRESS - some break from progress callback
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SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
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*/
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typedef void * CLzmaEncHandle;
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CLzmaEncHandle LzmaEnc_Create(struct ISzAlloc *alloc);
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void LzmaEnc_Destroy(CLzmaEncHandle p, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
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SRes LzmaEnc_SetProps(CLzmaEncHandle p, const struct CLzmaEncProps *props);
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SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, uint8_t *properties, size_t *size);
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SRes LzmaEnc_Encode(CLzmaEncHandle p, struct ISeqOutStream *outStream, struct ISeqInStream *inStream,
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struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
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SRes LzmaEnc_MemEncode(CLzmaEncHandle p, uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
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int writeEndMark, struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
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/* ---------- One Call Interface ---------- */
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/* LzmaEncode
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Return code:
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SZ_OK - OK
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SZ_ERROR_MEM - Memory allocation error
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SZ_ERROR_PARAM - Incorrect parameter
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SZ_ERROR_OUTPUT_EOF - output buffer overflow
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SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
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*/
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SRes LzmaEncode(uint8_t *dest, size_t *destLen, const uint8_t *src, size_t srcLen,
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const struct CLzmaEncProps *props, uint8_t *propsEncoded, size_t *propsSize, int writeEndMark,
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struct ICompressProgress *progress, struct ISzAlloc *alloc, struct ISzAlloc *allocBig);
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#endif
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