Search Results for "algorithms"

...Zstd can trade compression speed for stronger compression ratios. It is configurable by small increment. Decompression speed is preserved and remain roughly the same at all settings, a property shared by most LZ compression algorithms, such as zlib or lzma.

LZ4 is lossless compression algorithm, providing compression speed > 500 MB/s per core (>0.15 Bytes/cycle). It features an extremely fast decoder, with speed in multiple GB/s per core (~1 Byte/cycle). A high compression derivative, called LZ4_HC, is available, trading customizable CPU time for compression ratio. LZ4 library is provided as open-source software using a BSD license. This benchmark simulates simple "static content transfer" scenario such as OS Kernel compression or video game's...

Library and command line tools for XZ and LZMA compressed files

Major looseless compression algorithms library and documentation. First project: Arithmetic, Huffman, LZ77, LZ78, LZW, RLE. Second project reimplements Deflate. Documentation explains major Entropy Compression Methods.

Moved to GitHub.com/gdraheim/zziplib/ The ZZIPlib provides read access on ZIP-archives. The library uses only the patent-free compression-algorithms supported by Zlib. It provides functions that transparently access files being either real files or zipped files, both with the same filepath

Command-line tool for identifying and uncompressing a wide array of archive formats. It aims to unlock old and hard-to-find archive types.

minidjvu is a DjVu encoder for black-and-white images.

Lossless compression program with various algorithms included. Intended for large XML files, but can compress any files. Best results with block compression (BWT+MTF+RLE) on large block over alphabet of words.

Basic Compression Library is a portable library of well known compression algorithms, such as Huffman coding, written in standard ANSI C. It is intended to serve as a set of building blocks for specialized compression algorithms.

A compression engine based on the Huffman trie algorithm. The algorithm is pretty cpu-light, and as such, runs much more quickly than RAR or other 'heavy' algorithms, but could still achieve decent compression. Use with tar for multi-file archives.

LZO is a compression library which is widely used around the world. The main problem with LZO is that it is absolutely not human readable. People have done crazy stuff to get LZO to run in their language. Usually it implies inline assembly or trying to execute data which actually contains machine code. This is sick. Whoever is responsible for this sorry situation ought to be ashamed. So I'm going to deobfuscate LZO and provide a ISC implementation of this algorithm in Python and C. In...

Experimental command line compression utility to experiment with various compression algorithms.

Lrzip is a lossless compression application designed to scale with modern hardware resources using a variety of different back end compression algorithms with the ability to have unlimited size compression windows and optional high grade encryption. The larger the file the better the compression possible and the more powerful the hardware the faster it can compress with a heavily multithreaded design.