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comparison src/win32/7zip/7z/C/LzmaEnc.h @ 1:f9f4f1b99eed

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importing src directory
author Robert McIntyre <rlm@mit.edu>
date Sat, 03 Mar 2012 10:31:27 -0600
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0:8ced16adf2e1 1:f9f4f1b99eed
1 /* LzmaEnc.h -- LZMA Encoder
2 2008-10-04 : Igor Pavlov : Public domain */
3
4 #ifndef __LZMAENC_H
5 #define __LZMAENC_H
6
7 #include "Types.h"
8
9 #define LZMA_PROPS_SIZE 5
10
11 typedef struct _CLzmaEncProps
12 {
13 int level; /* 0 <= level <= 9 */
14 UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
15 (1 << 12) <= dictSize <= (1 << 30) for 64-bit version
16 default = (1 << 24) */
17 int lc; /* 0 <= lc <= 8, default = 3 */
18 int lp; /* 0 <= lp <= 4, default = 0 */
19 int pb; /* 0 <= pb <= 4, default = 2 */
20 int algo; /* 0 - fast, 1 - normal, default = 1 */
21 int fb; /* 5 <= fb <= 273, default = 32 */
22 int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
23 int numHashBytes; /* 2, 3 or 4, default = 4 */
24 UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */
25 unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
26 int numThreads; /* 1 or 2, default = 2 */
27 } CLzmaEncProps;
28
29 void LzmaEncProps_Init(CLzmaEncProps *p);
30 void LzmaEncProps_Normalize(CLzmaEncProps *p);
31 UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
32
33
34 /* ---------- CLzmaEncHandle Interface ---------- */
35
36 /* LzmaEnc_* functions can return the following exit codes:
37 Returns:
38 SZ_OK - OK
39 SZ_ERROR_MEM - Memory allocation error
40 SZ_ERROR_PARAM - Incorrect paramater in props
41 SZ_ERROR_WRITE - Write callback error.
42 SZ_ERROR_PROGRESS - some break from progress callback
43 SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
44 */
45
46 typedef void * CLzmaEncHandle;
47
48 CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);
49 void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
50 SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
51 SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
52 SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
53 ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
54 SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
55 int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
56
57 /* ---------- One Call Interface ---------- */
58
59 /* LzmaEncode
60 Return code:
61 SZ_OK - OK
62 SZ_ERROR_MEM - Memory allocation error
63 SZ_ERROR_PARAM - Incorrect paramater
64 SZ_ERROR_OUTPUT_EOF - output buffer overflow
65 SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
66 */
67
68 SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
69 const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
70 ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
71
72 #endif