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util/pack/xpkBZP2.lha

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Showing:m68k-amigaosppc-amigaosppc-morphosi386-arosi386-amithlonppc-warpupppc-powerupgeneric
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Short:Bzip2 xpk compression library V1.7 (68k,OS4,WOS,MOS)
Author:oliver at futaura.co.uk (Oliver Roberts)
Uploader:oliver futaura co uk (Oliver Roberts)
Type:util/pack
Version:1.7
Requires:OS 3.0+,68020+,xpkmaster.library
Architecture:m68k-amigaos; ppc-amigaos; ppc-morphos; ppc-warpup
Date:2005-03-05
Download:http://aminet.net/util/pack/xpkBZP2.lha - View contents
Readme:http://aminet.net/util/pack/xpkBZP2.readme
Downloads:1303

Changes since previous Aminet release:

 - PPC OS4 native version public release - rebuilt with GCC 3.4.3,
   now 10% faster at packing, and upto 30% faster unpacking
 - MorphOS and WarpOS versions recompiled with VBCC 0.8h, both
   now 2% faster at packing/unpacking and 6% faster unpacking for MorphOS


DESCRIPTION

Julian Sadler's bzip2 compresses files using the Burrows-Wheeler block
sorting text compression algorithm, and Huffman coding. Compression is
generally considerably better than that achieved by more conventional
LZ77/LZ78-based compressors, and approaches the performance of the PPM
family of statistical compressors.

xpkBZP2.library uses the same compression algorithm as bzip2, and allows
you to compress files with the same high crunch factor as bzip2, but under
the XPK interface.

In summary, xpkBZP2.library offers generally a very high compression ratio,
typically around 70-90%.  Of course, there's no such thing as a free lunch,
and the downside is that the compression routines require lots of memory,
although there are modes available which use less memory, at the expense of
compression efficiency.


Contents of util/pack/xpkBZP2.lha
 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[unknown]                 1848    2802  66.0% -lh5- 4d48 Apr 16  2000 xpkBZP2.info
[unknown]                 1189    3634  32.7% -lh5- c5e3 Mar 24  2004 xpkBZP2/Install_xpkBZP2
[unknown]                 1540    2024  76.1% -lh5- 3f79 Apr 16  2000 xpkBZP2/Install_xpkBZP2.info
[unknown]                15090   34876  43.3% -lh5- 0834 Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.020
[unknown]                  131     144  91.0% -lh5- d83c Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.030.pch
[unknown]                 1312    1764  74.4% -lh5- 892a Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.040.pch
[unknown]                 3495    5276  66.2% -lh5- 0f7d Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.060.pch
[unknown]                10402   20816  50.0% -lh5- 35e1 Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.mos.pch
[unknown]                23183   55572  41.7% -lh5- 4df4 Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.os4
[unknown]                21129   54720  38.6% -lh5- 4eae Mar  4  2005 xpkBZP2/Libs/Compressors/xpkBZP2.library.wos
[unknown]                 9285   14636  63.4% -lh5- e89d May 16  1996 xpkBZP2/spatch
[unknown]                 4160   11080  37.5% -lh5- 2789 Mar  4  2005 xpkBZP2/xpkBZP2.guide
[unknown]                 2308    2924  78.9% -lh5- 9746 Apr 16  2000 xpkBZP2/xpkBZP2.guide.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        13 files   95072  210268  45.2%            Mar  5  2005

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