Free Software Foundation!

Join now

Difference between revisions of "Lzip"

From Free Software Directory
Jump to: navigation,
Line 3: Line 3:
 
|Short description=a lossless data compressor based on the LZMA algorithm.
 
|Short description=a lossless data compressor based on the LZMA algorithm.
 
|Full description=Lzip is a lossless data compressor based on the LZMA (Lempel-Ziv-Markov chain-Algorithm) algorithm designed by Igor Pavlov. The high compression of LZMA comes from combining two basic, well-proven compression ideas: sliding dictionaries (i.e. LZ77/78), and markov models (i.e. the thing used by every compression algorithm that uses a range encoder or similar order-0 entropy coder as its last stage) with segregation of contexts according to what the bits are used for. Lzip is not a replacement for gzip or bzip2, but a complement; which one is best to use depends on user's needs.
 
|Full description=Lzip is a lossless data compressor based on the LZMA (Lempel-Ziv-Markov chain-Algorithm) algorithm designed by Igor Pavlov. The high compression of LZMA comes from combining two basic, well-proven compression ideas: sliding dictionaries (i.e. LZ77/78), and markov models (i.e. the thing used by every compression algorithm that uses a range encoder or similar order-0 entropy coder as its last stage) with segregation of contexts according to what the bits are used for. Lzip is not a replacement for gzip or bzip2, but a complement; which one is best to use depends on user's needs.
 +
|Homepage URL=http://www.nongnu.org/lzip/lzip.html
 +
|Is GNU=No
 
|User level=beginner
 
|User level=beginner
|Status=Live
 
|Component programs=
 
|Homepage URL=
 
 
|VCS checkout command=cvs -z3 -d:ext:<membername>@cvs.savannah.nongnu.org:/web/lzip co lzip
 
|VCS checkout command=cvs -z3 -d:ext:<membername>@cvs.savannah.nongnu.org:/web/lzip co lzip
 
|Computer languages=C++
 
|Computer languages=C++
 
|Documentation note=http://download.savannah.gnu.org/releases/lzip/manual/
 
|Documentation note=http://download.savannah.gnu.org/releases/lzip/manual/
|Paid support=
 
|IRC help=
 
|IRC general=
 
|IRC development=
 
 
|Related projects=Lzlib,Zutils,gzip,Plzip
 
|Related projects=Lzlib,Zutils,gzip,Plzip
 
|Keywords=C++,Compression,gzip,compress,algorithm,bzip,bzip2,compressed,compress/uncompress,compression ratio
 
|Keywords=C++,Compression,gzip,compress,algorithm,bzip,bzip2,compressed,compress/uncompress,compression ratio
|Is GNU=n
+
|Version identifier=1.13
|Last review by=Kelly Hopkins
+
|Version date=2012/03/13
|Last review date=2009-01-28
+
|Version status=stable
 +
|Version download=http://download.savannah.gnu.org/releases/lzip/lzip-1.13.tar.gz
 +
|Last review by=Matt Lee
 +
|Last review date=2012/03/13
 
|Submitted by=Database conversion
 
|Submitted by=Database conversion
 
|Submitted date=2011-04-01
 
|Submitted date=2011-04-01
|Version identifier=1.11
 
|Version date=2010-09-26
 
|Version status=stable
 
|Version download=http://download.savannah.gnu.org/releases/lzip/lzip-1.11.tar.gz
 
 
|License verified date=2010-09-27
 
|License verified date=2010-09-27
|Version comment=
+
}}
 +
{{Project license
 +
|License=GPLv3orlater
 +
|License verified by=Kelly Hopkins
 +
|License verified date=2010-09-27
 
}}
 
}}
 
{{Person
 
{{Person
|Role=Maintainer
 
 
|Real name=Antonio Diaz Diaz
 
|Real name=Antonio Diaz Diaz
 +
|Role=Maintainer
 
|Email=ant_diaz@teleline.es
 
|Email=ant_diaz@teleline.es
|Resource URL=
 
 
}}
 
}}
 
{{Resource
 
{{Resource
Line 64: Line 61:
 
|Use=system-administration
 
|Use=system-administration
 
}}
 
}}
{{Project license
+
{{Featured}}
|License=GPLv3orlater
+
|License verified by=Kelly Hopkins
+
|License verified date=2010-09-27
+
}}
+

Revision as of 13:59, 13 March 2012

[edit]

Lzip

http://www.nongnu.org/lzip/lzip.html
Lzip is a lossless data compressor based on the LZMA (Lempel-Ziv-Markov chain-Algorithm) algorithm designed by Igor Pavlov. The high compression of LZMA comes from combining two basic, well-proven compression ideas: sliding dictionaries (i.e. LZ77/78), and markov models (i.e. the thing used by every compression algorithm that uses a range encoder or similar order-0 entropy coder as its last stage) with segregation of contexts according to what the bits are used for. Lzip is not a replacement for gzip or bzip2, but a complement; which one is best to use depends on user's needs.

Related subprojects include:

Clzip
A C implementation of lzip for systems lacking a C++ compiler.
Plzip
A multi-threaded compressor using the lzip file format.
Lzlib
A compression library for the lzip file format.
Lunzip
A small decompressor for lzip files.
Lziprecover
A data recovery tool and decompressor for lzip files.
Pdlzip
A limited, "public domain" implementation of the lzip data compressor,

intended for those who can't distribute GPL licensed Free Software. Pdlzip is also able to decompress legacy lzma-alone (.lzma) files.

Documentation

Manual

Related Projects




Licensing

LicenseVerified byVerified onNotes
GPLv3orlaterKelly Hopkins27 September 2010



Leaders and contributors

Contact(s)Role
"Email ant_diaz@teleline.es" Antonio Diaz Diaz Maintainer


Resources and communication

Audience Resource type URI
Support E-mail mailto:lzip-bug@nongnu.org
Help Homepage http://freshmeat.net/projects/lzip/
Developer Homepage https://savannah.nongnu.org/projects/lzip/
Bug Tracking Mailing List Info/Archive http://lists.nongnu.org/mailman/listinfo/lzip-bug
Developer Download http://download.savannah.gnu.org/releases-noredirect/lzip/


Software prerequisites

This entry (in part or in whole) was last reviewed on 13 March 2012.



Entry






























Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the page “GNU Free Documentation License”.

The copyright and license notices on this page only apply to the text on this page. Any software or copyright-licenses or other similar notices described in this text has its own copyright notice and license, which can usually be found in the distribution or license text itself.


Personal tools
Namespaces

Variants
Actions
Navigation
Contribute