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SQUASHFS - A squashed read-only filesystem for Linux
Squashfs is a highly compressed read-only filesystem for Linux (kernel 2.4.x). It uses Gzip compression to compress files, inodes and directories. Inodes in the system are very small and all blocks are packed to minimise data overhead. Block sizes greater than 4K are supported up to a maximum of 64K.
Version 3.2 of squashfs released in […]
JPEG 2000 Browser Plugin
Elysium says that this product is the first publicly released JPEG 2000 plugin for the Windows platform. It works with Netscape, Opera, and IE browsers, and is free.
TTA Lossless Audio Compressor
A lossless codec developed in Russia originally for radio telescope data. Apparently that specialized codec turned out to be good on audio data as well. Distributed under a free license.
Genetic Algorithms for Fractal Image and Image Sequence Compression
In this paper we present a method that uses Genetic Algorithms (GAs) to find a Local Iterated Function System (LIFS) that encodes a single image. By doing this, the time needed to achieve this LIFS is reduced by about compared with Barnsley’s method if similar image quality is desired. If less quality is acceptable, […]
Zip and Unzip Using VB5 or VB6
Some sample code and a tutorial explaining how to use the InfoZip DLLs with VB.
http://www.codeguru.com/vb/gen/vb_graphics/fileformats/article.php/c6743/
Fractal Image Compression for Spaceborne Transputers
A dissertation by Keith Howell which evaluates the suitability of Fractal Compression for spacecraft images. Keith says he is willing to supply source code upon request.
Package: unrar (1:0.0.1-1)
Unrar can extract files from .rar archives. Can’t handle archives in the RAR 3.0 format.
SynCE - Dynamite
Dynamite is a tool and library for decompressing data compressed with PKWARE Data Compression Library and it was created from the specification provided by a post in the comp.compression newsgroup.
Stuns
This program tries to unpack the given file by application of several algorithms byte-by-byte. Result of work of the program is the set of files with the unpacked data. Many of the produced files are not correct. However, among them there can be correctly unpacked data. Correctly unpacked files have […]
Ch zlib Package
Ch zlib Package is Ch interface to zlib. Ch is a C/C++ interpretive freely available from htpp://www.softintegration.com. Ch zlib Package alllows zlib applications with compression and decompression function runs in Ch across platform without compilation. Ch zlib Package includes the source code for building the binding to zlib.
Read tags of .ogg files
This is a simple class that reads default tags (the ones suggested by xiph.org) and the common “COMMENT” tag used by WinAmp and other players and tag editors.
mp3stat
Mp3stat is Linux a utility program to compare encoders against an MP3 that was VBR encoded. It outputs a linear graphical bitstream analysis of each MP3 being compared and gives you a breakdown of how many frames of each bitrate are found in the MP3. It basically allows you to see how encoders treat areas […]
PicoZip
PicoZip is an award winning file compression utility that runs on all 32-bit Windows platforms such as Windows 95, 98, ME, NT4, 2000 and XP. It is extremely easy to use, yet contains many advanced features that helps you create or unzip ZIP files, as well as most other popular archive formats like RAR, ACE, […]
Animal - AN IMAging Library
Yet another imaging library that claims to support over 80 image formats under Win32. This is listed as an Alpha status project that is shipping version 0.14.0 as of July, 2004.
DynaZIP ZIP/UNZIP toolkits
DynaZIP offers just about everything you’d want to work with Zip files in a Win32 environment.
DataCompression.info user Mike L. had this to say: Creates huge output executables. Features contained in multiple packages are contained in a single package in comparable products. Pricing is very steep compared to comparable products.
PowerArchiver
Yet another Windows archiving program. PowerArchiver comes with a nice long list of supported formats: ZIP, CAB, LHA (LZH), TAR, TAR.GZ, TAR.BZ2, BH, RAR, ARJ, ARC, ACE, ZOO, GZ, BZIP2, XXE, and UUE. Plus a built-in viewer for JPG, GIF, and a few other formats.
Release 9.0 of PowerArchiver shipped July, 2004.
Symbian OggPlay
OggPlay is an Ogg vorbis audio player for smartphones. I started working on this project in early April 2003. The 1st version for the SonyEriccson P800 was released end of April. Many people have contributed localized versions, new skins, documentation, and are helping with porting the application to other phones since then. OggPlay has become […]
About LZW Compression
A tutorial by Martin Zolnieryk on LZW, along with some pseudo code and links.
axPAQ
A compressor built with the world-beating PAQAR 3.0 compressor. axPAQ wraps a GUI around the engine, and includes complete source.
JMAC: Open Source Java Monkey’s Audio Decoder/JavaSound SPI
JMAC is a Java implementation of the Monkey’s Audio decoder/JavaSound SPI. Currently, Monkey’s Audio format up to 3.97 version supported. JMAC is distributed under the terms of the GNU Library General Public License.
Version 1.65 of JMAC is shipping as of July, 2004.
Taking Advantage of libpng
Reputedly an excellent set of resources for using libpng - but don’t take my word for it - my Japanese is non-existent.
FreeImage
FreeImage is yet another free library for image reading, writing, and manipulation. FreeImage supports a long list of compressed formats, including JPEG, PNG, TIFF, and more. Claims to support multiple platforms, but it does apear that most of the experience with this project is on Win32 systems.
Version 3.4.0 is shipping in July, 2004.
Experiments in archival-quality image compression
Some image compression tests by Mike Muus, the author of ping.
WMA To MP3 Converte
WMA To MP3 Converter was written for converting WMA to or from MP3/WAV files. So, with WMA to MP3 Converter, you may convert WMA to MP3, convert WMA to WAV, convert WAV to WMA, convert MP3 to WMA.
JSPFileManager
JSPFM supports the standard file operations of creation, editing, copying, moving, deleting, renaming and compression/decompression of files and directories. JSPFM also supports some special file operations specific to certain file types such as transposition and resizing of image type files.
wmeTV
wmeTV is a Windows Media Encoder based TV viewing and video capturing application (PVR) suitable for most modern capture cards. Features include scheduling, capturing and viewing at high resolution and remote control support.
Practical Compressor Test
Unlike some other compressor comparison sites, I won’t be looking for a compressor offering for the last bit of compression. Instead I’ll try to find the most practical compressor out there.
JIU - The Java Imaging Utilities - An image processing library
JIU, the Java Imaging Utilities, is a library which offers functionality to load, analyze, process and save pixel images. It is written in Java and comes with full source code under the GNU General Public License (GPL) version 2.
Managed C++ wrapper for Zlib
In this article I present a namespace of managed types that provide a wrapper to some of the standard functionalities exported by ZLib. ZLib is a well known free, general-purpose lossless data-compression library for use on any operating system.
EmilCont Ultracompression
This site compares compressors on the basis of compression ratios only. Speed is not an issue.
