1
/* LzmaEnc.h -- LZMA Encoder
2
2011-01-27 : Igor Pavlov : Public domain */
11
#define LZMA_PROPS_SIZE 5
13
typedef struct _CLzmaEncProps
15
int level; /* 0 <= level <= 9 */
16
UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version
17
(1 << 12) <= dictSize <= (1 << 30) for 64-bit version
18
default = (1 << 24) */
19
UInt32 reduceSize; /* estimated size of data that will be compressed. default = 0xFFFFFFFF.
20
Encoder uses this value to reduce dictionary size */
21
int lc; /* 0 <= lc <= 8, default = 3 */
22
int lp; /* 0 <= lp <= 4, default = 0 */
23
int pb; /* 0 <= pb <= 4, default = 2 */
24
int algo; /* 0 - fast, 1 - normal, default = 1 */
25
int fb; /* 5 <= fb <= 273, default = 32 */
26
int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */
27
int numHashBytes; /* 2, 3 or 4, default = 4 */
28
UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */
29
unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */
30
int numThreads; /* 1 or 2, default = 2 */
33
void LzmaEncProps_Init(CLzmaEncProps *p);
34
void LzmaEncProps_Normalize(CLzmaEncProps *p);
35
UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2);
38
/* ---------- CLzmaEncHandle Interface ---------- */
40
/* LzmaEnc_* functions can return the following exit codes:
43
SZ_ERROR_MEM - Memory allocation error
44
SZ_ERROR_PARAM - Incorrect paramater in props
45
SZ_ERROR_WRITE - Write callback error.
46
SZ_ERROR_PROGRESS - some break from progress callback
47
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
50
typedef void * CLzmaEncHandle;
52
CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc);
53
void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig);
54
SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props);
55
SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size);
56
SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream,
57
ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
58
SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
59
int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);
61
/* ---------- One Call Interface ---------- */
66
SZ_ERROR_MEM - Memory allocation error
67
SZ_ERROR_PARAM - Incorrect paramater
68
SZ_ERROR_OUTPUT_EOF - output buffer overflow
69
SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version)
72
SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen,
73
const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark,
74
ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig);