100 lines
3.8 KiB
C
100 lines
3.8 KiB
C
/*
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* This file is a part of Pcompress, a chunked parallel multi-
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* algorithm lossless compression and decompression program.
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*
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* Copyright (C) 2012-2013 Moinak Ghosh. All rights reserved.
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* Use is subject to license terms.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program.
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* If not, see <http://www.gnu.org/licenses/>.
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*
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* moinakg@belenix.org, http://moinakg.wordpress.com/
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*
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*/
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/* LzmaEnc.h -- LZMA Encoder
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2008-10-04 : Igor Pavlov : Public domain */
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#ifndef __LZMAENC_H
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#define __LZMAENC_H
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#include "Types.h"
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#define LZMA_PROPS_SIZE 5
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typedef struct _CLzmaEncProps
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{
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int level; /* 0 <= level <= 9 */
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UInt32 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 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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int normalized;
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size_t litprob_sz;
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} CLzmaEncProps;
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extern void LzmaEncProps_Init(CLzmaEncProps *p);
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void LzmaEncProps_Normalize(CLzmaEncProps *p);
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UInt32 LzmaEncProps_GetDictSize(const 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 paramater 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(ISzAlloc *alloc);
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void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
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SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
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SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
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SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
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ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
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SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
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int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, 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 paramater
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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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extern SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
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CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
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ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
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#endif
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