14 projects tagged "Compression"
Updated 22 Sep 2010
bzip2
| Pop | 708.59 |
|---|---|
| Vit | 9.21 |
bzip2 is a portable, lossless data compressor based on the Burrows-Wheeler transform. It achieves good compression and runs on practically every (32/64-bit) platform in the known universe. The compression engine is also available as a library (libbz2), should you desire a programmatic interface.
Updated 31 Jan 2012
UnZip
| Pop | 581.97 |
|---|---|
| Vit | 8.79 |
UnZip will list, test, or extract files from a ZIP archive, commonly found on DOS and Windows systems. A companion program, Zip, creates ZIP archives; both are part of the Info-ZIP project. Both programs are compatible with archives created by PKWARE's PKZIP or Nico Mak's WinZip, but in many cases the program options or default behaviors differ.
Updated 02 Jan 2006
Dump/Restore
| Pop | 338.69 |
|---|---|
| Vit | 8.27 |
The dump package contains both dump and restore. Dump examines files in a filesystem, determines which ones need to be backed up, and copies those files to a specified disk, tape or other storage medium. The restore command performs the inverse function of dump; it can restore a full backup of a filesystem. Subsequent incremental backups can then be layered on top of the full backup. Single files and directory subtrees may also be restored from full or partial backups.
Updated 31 Jan 2012
Zip
| Pop | 276.95 |
|---|---|
| Vit | 5.75 |
Zip is a compression and file packaging utility for Unix, VMS, DOS, OS/2, Windows 9x/NT, Amiga, Atari, Macintosh, BeOS, SMS/QDOS, MVS, VM/CMS, and others. It is analogous to a combination of the Unix commands tar(1) and compress(1) and is compatible with PKWARE's PKZIP and Nico Mak's WinZip. It's part of the Info-ZIP project.
Updated 16 Feb 2012
RabbIT
| Pop | 204.53 |
|---|---|
| Vit | 31.88 |
RabbIt is a mutating, caching Web proxy used to speed up surfing over slow links like modems. It does this by removing advertising and background images and scaling down images to low quality JPEGs. RabbIT is written in Java and should be able to run on any platform. It does depend upon an image converter if image scaling is on. The recommended image converter is "convert" from the ImageMagick package.
Updated 02 Nov 2011
Parallel BZIP2
| Pop | 181.86 |
|---|---|
| Vit | 10.94 |
PBZIP2 is a parallel implementation of the bzip2 block-sorting file compressor that uses pthreads and achieves near-linear speedup on SMP machines. The output of this version is fully compatible with bzip2 1.0.2 or newer (ie: anything compressed with PBZIP2 can be decompressed with bzip2).
Updated 01 Apr 2005
murk
| Pop | 76.32 |
|---|---|
| Vit | 2.07 |
murk is an rsync-friendly encryption that runs on the Unix command line. Users can encrypt a file and backup the changes to an untrusted host.
Updated 01 Jan 2012
pngquant
| Pop | 66.14 |
|---|---|
| Vit | 7.24 |
pngquant is a batch conversion utility to quantize and dither truecolor PNG images, especially those with a full alpha channel, down to "RGBA-palette" PNGs (i.e., PLTE + tRNS in PNG parlance). Such images are usually two to four times smaller than the full 32-bit versions, and partial transparency is preserved quite nicely. This makes pngquant especially useful both for Web sites and for PlayStation 2 development, where one of the texture formats is RGBA-palette-based (though not PNG-compressed).
Updated 02 Oct 2007
JBDiff
| Pop | 63.28 |
|---|---|
| Vit | 1.71 |
JBDiff (Java Binary Diff) utility is a Java port of the C based bsdiff utility by Colin Percival.
Updated 19 Jul 2007
Parallel MPI BZIP2
| Pop | 44.60 |
|---|---|
| Vit | 1.00 |
MPIBZIP2 is a parallel implementation of the bzip2 block-sorting file compressor that uses MPI and achieves significant speedup on cluster machines. The output of this version is fully compatible with bzip2 1.0.2 or newer (i.e. anything compressed with MPIBZIP2 can be decompressed with bzip2).
