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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) |
What's new:
- 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
- LZMA at Wikipedia
- Port of LZMA SDK for JAVA from independent developer
- Port of LZMA SDK to Pascal (Delphi, Kylix and Freepascal)
- PyLZMA: Python bindings for LZMA
- XZ Utils / LZMA utils
- LZMA Streams in Java
- LZMA Benchmark results for different CPUs
Copyright (C) 2011 Igor Pavlov.