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LZMA SDK (Software Development Kit)
The LZMA SDK provides the documentation, samples, header files, libraries,
and tools you need to develop applications that use LZMA compression.
Link |
Size |
Date |
Version |
Description |
Download |
500 KB |
2010-11-18 |
9.20 |
LZMA SDK (C, C++, C#, Java) |
Download |
500 KB |
2011-04-19 |
9.22 Beta |
LZMA SDK (C, C++, C#, Java) |
Download |
900 KB |
2014-12-07 |
9.35 beta |
LZMA SDK (C, C++, C#, Java) (with binaries for Windows) |
Download |
18 KB |
2013-07-28 |
|
LZMA Specification (Draft) |
Note: If you use some C / C++ files from LZMA SDK,
you can use new versions of same C / C++ files from 7-Zip 9.34 source code.
If the source code file is included to both the 7-Zip source code and the LZMA SDK,
such file can be used as public domain code (as LZMA SDK files).
Note: If you use XZ code from LZMA SDK, it's recommended to upgrade to new
XZ code from 7-Zip 9.35 beta. That new code fixes some bugs.
What's new:
- 9.35: Some bugs were fixed. AES code and SFXs modules were included to SDK.
- 9.20: New small SFX module for installers.
- 9.11: PPMd support.
- 9.04: LZMA2 and XZ support.
- 4.62: Some fixes. LZMA SDK is placed in the public domain.
- 4.58: Speed optimizations. New ANSI-C code for LZMA compression.
- 4.57: Speed optimizations. Some fixes.
- 4.49: .7z ANSI-C decoder was improved. C++ code for .7z archive handling was
included.
LZMA is the default and general compression method of 7z format
in the 7-Zip program. LZMA provides a high compression ratio and
very fast decompression, so it is very suitable for embedded applications.
For example, it can be used for ROM (firmware) compressing.
LZMA SDK includes:
- C++ source code of LZMA Encoder and Decoder
- C++ source code for .7z compression and decompression (reduced version)
- ANSI-C compatible source code for LZMA / LZMA2 / XZ compression and decompression
- ANSI-C compatible source code for 7z decompression with example
- C# source code for LZMA compression and decompression
- Java source code for LZMA compression and decompression
- lzma.exe for .lzma compression and decompression
- 7zr.exe to work with 7z archives (reduced version of 7z.exe from 7-Zip)
ANSI-C and C++ source code in LZMA SDK is subset of source code of 7-Zip.
LZMA features:
- Compression speed: 2 MB/s on 2 GHz dual-core CPU.
- Decompression speed:
- 20-30 MB/s on 2 GHz Intel Core2 or AMD Athlon 64.
- 1-2 MB/s on 200 MHz ARM, MIPS, PowerPC or other simple RISC CPU.
- Small memory requirements for decompression: 8-32 KB + DictionarySize
- Small code size for decompression: 2-8 KB (depending on speed optimizations)
The LZMA decoder uses only CPU integer instructions and can be
implemented for any modern 32-bit CPU (or, on a 16-bit CPU with some conditions).
License
LZMA SDK is placed in the public domain.
LZMA Links
Copyright (C) 2014 Igor Pavlov.
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