Search Results for "file compression"

Zstandard is a fast compression algorithm, providing high compression ratios. It also offers a special mode for small data, called dictionary compression. The reference library offers a very wide range of speed / compression trade-off, and is backed by an extremely fast decoder (see benchmarks below). Zstandard library is provided as open source software using a BSD license. Its format is stable and published as IETF RFC 8478. The negative compression levels, specified with --fast=#, offer...

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

This is a research project to possible improve compression using LZ77, LZSS or bwt, bwt is used on the bzip2 compression library, the v28 from 04/dec/2022 is the first version to almost beat lzma, indeed it is a tweak of lzma, the decoder for v28 will follow in a few days Important: in 13/August/2026 was added the C file lz77_enhanced.c in the section Files, it have an enhanced lz77 implementation, it is better than standard lz77, it compress better, take a look

The gSOAP toolkit is an extensive suite of portable C and C++ software to develop XML Web services with powerful type-safe XML data bindings. Easy-to-use code-generator tools allow you to directly integrate XML data in C and C++. Serializes native application data in XML. Includes WSDL/XSD schema binding and auto-coding tools, stub/skeleton compiler, Web server integration with Apache module and IIS extension, high-performance XML processing with schema validation, fast MIME/MTOM streaming,...

C code and DLL (with sample project) with library libarchive and GNU tar 1.34 to list, update, delete, extract and create latest GNU tar files uncompressed or compressed with gzip, gzip2, gzip2 multi-thread, bzip2, bzip3, bzip3 multi-thread, lzip, lzop, lzop2, lzop2 multi-thread, lz4, lz5 multi-thread, lzma, brotli, brotli2 multi-thread, Zstandard, xz , the old Unix compression utility 'compress' (.Z) , compress2 multi-thread (.Z2), zip, 7zip and many more formats with full Unicode support when creating and extracting files in windows, compiled with mingw, notice that we have developed a replacement for tar when running in windows with support to file attributes, it is extensible without breaking compatibility with older files, this means that if in the future we add new features to the format it still will be able to extract older VAL files, this is the recommended mode to be used, the extension is .val, support to AES 256, RC4, Serpent, MARS, RC6 and TWOFISH encryption

MozJPEG improves JPEG compression efficiency achieving higher visual quality and smaller file sizes at the same time. It is compatible with the JPEG standard, and the vast majority of the world's deployed JPEG decoders. MozJPEG is compatible with the libjpeg API and ABI. It is intended to be a drop-in replacement for libjpeg. MozJPEG is a strict superset of libjpeg-turbo's functionality.

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.

The goal of this project is to provide a generator for lexical analyzers of maximum computational efficiency and maximum range of applications. This includes the support for Unicode (UTF8, UTF16, ...) and a large variety of other encodings directly and via nested converters such as ICU(tm) and IConv. Sophisticated buffer handling allows to operate on plain file streams, on sockets, or manually fed buffer content. 'Ready-to-build' examples explain related concepts and facilitate practical...

Simple, fast implementation of LZW (Lempel–Ziv–Welch) data compression algorithm in C. - Console encoder/decoder tools - OS independent - Could be used in embedded projects - Works with raw code-stream LZW features: - Hardcoded dictionary size - Variable code size - Code search is performed by hash table and embedded in dictionary linked lists (encoder) - No dynamic memory allocation

pngcrush and other tools for manipulating PNG (Portable Network Graphics) and MNG (Multiple-image Network Graphics) files.

liblzg is a minimal implementation of an LZ77 class compression library. The main characteristic of the library is that the decoding routine is very simple, fast and requires no memory.

gzx is a C library and a command line tool for fully GZIP-compliant file compression with fast random access read support. gzx includes a FUSE (filesystem in userspace) client that allows to access the compressed files with arbitrary applications.

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

file packing library with zlib compression & tea encryption

TclTrf is an extension library to the script language tcl, as created by John Ousterhout. It extends the language at the C-and Tcl-with ``transformer''-commands to encode and compress data. Based on the stacked channels of the tcl core (ability inter

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

Shoelacer generates C code to compress short strings based upon provided sample data. The resulting routines use small models with low memory overhead.

UPX Tool is a GUI for the popular UPX EXE Compressor. Windows Programs and Dlls, and DOS Programs can be compressed.

Microsoft Visual 6.0 C++ :New 4gl Windows API, Sql, Queries( Data Base : Excel,Access,Foxpro,Dbase,Text,csv),Ado, Sort, Reporting , Sms phone,Ftp server, mail/mapi,generate Pdf(acrobat) Text,office:Excel/Word, un/Compression(cabsdk),GIf anim,jpg,bmp...

makeutil is a set of portable public domain programs designed to support C/C++ projects. It provides tools for build operations outside of the normal compile/link pipeline. It is designed to be unobtrusively included directly in your own project.

Tcl Channel drivers for gzip'd and bzip2'd files. Read and wirte compressed files directly from within TCL. This library allows you to use two new commands (openBzip and openGzip) in your tcl scripts. Since they take exactly the same Options as the st

Xinstaller is a program written in C for Linux. It will allow you to make an installer file for your programs. The user will have only to start the executable and to answer some easy questions(mostly "next" :)).

A CVS with simple architecture and easy interface. Use to sincronize automatically a directory, project or for backup. Works in any OS with Perl. FEATURES: web access; client/server; protocol compression; own chksum; Web Admin.

A port of zlib 1.1.4 to the Palm OS as a SysLib. Facilitates decompression/compression of infozip and PK-ZIP 2.x (.zip) as well as gzip (.gz) compression formats on the Palm PDA.