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| | | /* LzmaEnc.h -- LZMA Encoder |
| | | 2023-04-13 : Igor Pavlov : Public domain */ |
| | | |
| | | #ifndef ZIP7_INC_LZMA_ENC_H |
| | | #define ZIP7_INC_LZMA_ENC_H |
| | | |
| | | #include "7zTypes.h" |
| | | |
| | | EXTERN_C_BEGIN |
| | | |
| | | #define LZMA_PROPS_SIZE 5 |
| | | |
| | | typedef struct |
| | | { |
| | | int level; /* 0 <= level <= 9 */ |
| | | UInt32 dictSize; /* (1 << 12) <= dictSize <= (1 << 27) for 32-bit version |
| | | (1 << 12) <= dictSize <= (3 << 29) for 64-bit version |
| | | default = (1 << 24) */ |
| | | int lc; /* 0 <= lc <= 8, default = 3 */ |
| | | int lp; /* 0 <= lp <= 4, default = 0 */ |
| | | int pb; /* 0 <= pb <= 4, default = 2 */ |
| | | int algo; /* 0 - fast, 1 - normal, default = 1 */ |
| | | int fb; /* 5 <= fb <= 273, default = 32 */ |
| | | int btMode; /* 0 - hashChain Mode, 1 - binTree mode - normal, default = 1 */ |
| | | int numHashBytes; /* 2, 3 or 4, default = 4 */ |
| | | unsigned numHashOutBits; /* default = ? */ |
| | | UInt32 mc; /* 1 <= mc <= (1 << 30), default = 32 */ |
| | | unsigned writeEndMark; /* 0 - do not write EOPM, 1 - write EOPM, default = 0 */ |
| | | int numThreads; /* 1 or 2, default = 2 */ |
| | | |
| | | // int _pad; |
| | | |
| | | UInt64 reduceSize; /* estimated size of data that will be compressed. default = (UInt64)(Int64)-1. |
| | | Encoder uses this value to reduce dictionary size */ |
| | | |
| | | UInt64 affinity; |
| | | } CLzmaEncProps; |
| | | |
| | | void LzmaEncProps_Init(CLzmaEncProps *p); |
| | | void LzmaEncProps_Normalize(CLzmaEncProps *p); |
| | | UInt32 LzmaEncProps_GetDictSize(const CLzmaEncProps *props2); |
| | | |
| | | /* ---------- CLzmaEncHandle Interface ---------- */ |
| | | |
| | | /* LzmaEnc* functions can return the following exit codes: |
| | | SRes: |
| | | SZ_OK - OK |
| | | SZ_ERROR_MEM - Memory allocation error |
| | | SZ_ERROR_PARAM - Incorrect paramater in props |
| | | SZ_ERROR_WRITE - ISeqOutStream write callback error |
| | | SZ_ERROR_OUTPUT_EOF - output buffer overflow - version with (Byte *) output |
| | | SZ_ERROR_PROGRESS - some break from progress callback |
| | | SZ_ERROR_THREAD - error in multithreading functions (only for Mt version) |
| | | */ |
| | | |
| | | typedef struct CLzmaEnc CLzmaEnc; |
| | | typedef CLzmaEnc *CLzmaEncHandle; |
| | | // Z7_DECLARE_HANDLE(CLzmaEncHandle) |
| | | |
| | | CLzmaEncHandle LzmaEnc_Create(ISzAllocPtr alloc); |
| | | void LzmaEnc_Destroy(CLzmaEncHandle p, ISzAllocPtr alloc, ISzAllocPtr allocBig); |
| | | |
| | | SRes LzmaEnc_SetProps(CLzmaEncHandle p, const CLzmaEncProps *props); |
| | | void LzmaEnc_SetDataSize(CLzmaEncHandle p, UInt64 expectedDataSiize); |
| | | SRes LzmaEnc_WriteProperties(CLzmaEncHandle p, Byte *properties, SizeT *size); |
| | | unsigned LzmaEnc_IsWriteEndMark(CLzmaEncHandle p); |
| | | |
| | | SRes LzmaEnc_Encode( |
| | | CLzmaEncHandle p, ISeqOutStreamPtr outStream, ISeqInStreamPtr inStream, ICompressProgressPtr progress, ISzAllocPtr alloc, ISzAllocPtr allocBig); |
| | | SRes LzmaEnc_MemEncode(CLzmaEncHandle p, |
| | | Byte *dest, |
| | | SizeT *destLen, |
| | | const Byte *src, |
| | | SizeT srcLen, |
| | | int writeEndMark, |
| | | ICompressProgressPtr progress, |
| | | ISzAllocPtr alloc, |
| | | ISzAllocPtr allocBig); |
| | | |
| | | /* ---------- One Call Interface ---------- */ |
| | | |
| | | SRes LzmaEncode(Byte *dest, |
| | | SizeT *destLen, |
| | | const Byte *src, |
| | | SizeT srcLen, |
| | | const CLzmaEncProps *props, |
| | | Byte *propsEncoded, |
| | | SizeT *propsSize, |
| | | int writeEndMark, |
| | | ICompressProgressPtr progress, |
| | | ISzAllocPtr alloc, |
| | | ISzAllocPtr allocBig); |
| | | |
| | | EXTERN_C_END |
| | | |
| | | #endif |