bashi@chromium.org | c2a9375 | 2012-05-02 00:18:22 +0000 | [diff] [blame] | 1 | /* LzmaEnc.h -- LZMA Encoder |
agl@chromium.org | 92ae161 | 2012-06-26 19:58:38 +0000 | [diff] [blame] | 2 | 2009-02-07 : Igor Pavlov : Public domain |
| 3 | in the public domain */ |
bashi@chromium.org | c2a9375 | 2012-05-02 00:18:22 +0000 | [diff] [blame] | 4 | |
| 5 | #ifndef __LZMA_ENC_H |
| 6 | #define __LZMA_ENC_H |
| 7 | |
| 8 | #include "Types.h" |
| 9 | |
| 10 | #ifdef __cplusplus |
| 11 | extern "C" { |
| 12 | #endif |
| 13 | |
| 14 | #define LZMA_PROPS_SIZE 5 |
| 15 | |
| 16 | typedef struct _CLzmaEncProps |
| 17 | { |
| 18 | int level; /* 0 <= level <= 9 */ |
| 19 | UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version |
| 20 | (1 << 12) <= dictSize <= (1 << 30) for 64-bit version |
| 21 | default = (1 << 24) */ |
| 22 | int lc; /* 0 <= lc <= 8, default = 3 */ |
| 23 | int lp; /* 0 <= lp <= 4, default = 0 */ |
| 24 | int pb; /* 0 <= pb <= 4, default = 2 */ |
| 25 | int algo; /* 0 - fast, 1 - normal, default = 1 */ |
| 26 | int fb; /* 5 <= fb <= 273, default = 32 */ |
| 27 | int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ |
| 28 | int numHashBytes; /* 2, 3 or 4, default = 4 */ |
| 29 | UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ |
| 30 | unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ |
| 31 | int numThreads; /* 1 or 2, default = 2 */ |
| 32 | } CLzmaEncProps; |
| 33 | |
| 34 | void LzmaEncProps_Init(CLzmaEncProps *p); |
| 35 | void LzmaEncProps_Normalize(CLzmaEncProps *p); |
| 36 | UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); |
| 37 | |
| 38 | |
| 39 | /* ---------- CLzmaEncHandle Interface ---------- */ |
| 40 | |
| 41 | /* LzmaEnc_* functions can return the following exit codes: |
| 42 | Returns: |
| 43 | SZ_OK - OK |
| 44 | SZ_ERROR_MEM - Memory allocation error |
| 45 | SZ_ERROR_PARAM - Incorrect paramater in props |
| 46 | SZ_ERROR_WRITE - Write callback error. |
| 47 | SZ_ERROR_PROGRESS - some break from progress callback |
| 48 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) |
| 49 | */ |
| 50 | |
| 51 | typedef void * CLzmaEncHandle; |
| 52 | |
| 53 | CLzmaEncHandle LzmaEnc_Create(ISzAlloc *alloc); |
| 54 | void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAlloc *alloc, ISzAlloc *allocBig); |
| 55 | SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); |
| 56 | SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); |
| 57 | SRes LzmaEnc_Encode(CLzmaEncHandle p, ISeqOutStream *outStream, ISeqInStream *inStream, |
| 58 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
| 59 | SRes LzmaEnc_MemEncode(CLzmaEncHandle p, Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, |
| 60 | int writeEndMark, ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
| 61 | |
| 62 | /* ---------- One Call Interface ---------- */ |
| 63 | |
| 64 | /* LzmaEncode |
| 65 | Return code: |
| 66 | SZ_OK - OK |
| 67 | SZ_ERROR_MEM - Memory allocation error |
| 68 | SZ_ERROR_PARAM - Incorrect paramater |
| 69 | SZ_ERROR_OUTPUT_EOF - output buffer overflow |
| 70 | SZ_ERROR_THREAD - errors in multithreading functions (only for Mt version) |
| 71 | */ |
| 72 | |
| 73 | SRes LzmaEncode(Byte *dest, SizeT *destLen, const Byte *src, SizeT srcLen, |
| 74 | const CLzmaEncProps *props, Byte *propsEncoded, SizeT *propsSize, int writeEndMark, |
| 75 | ICompressProgress *progress, ISzAlloc *alloc, ISzAlloc *allocBig); |
| 76 | |
| 77 | #ifdef __cplusplus |
| 78 | } |
| 79 | #endif |
| 80 | |
| 81 | #endif |