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Thread: FreeArc 0.40 preview

  1. #1
    Programmer Bulat Ziganshin's Avatar
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    as Vacon suggested, i piblish current state-of-the-art with FreeArc:

    http://www.haskell.org/bz/FreeArcBeta.7z
    online russian docs: http://www.haskell.org/bz/FreeArc040.htm

    please
    - don't use it for real compression tasks - program still contain bugs and compression formats will be changed in released version
    - don't advertise it outside of this forum

    Main improvements:
    • Exhaustive Russian docs (I plan to make English translation this month)
    • Sources with easy-to-follow building guide
    • Multimedia compression using TrueAudio, GRZIP and my own MM detector/preprocessor
    • Enabling LZMA multithreading makes main compression algorithm 1.5x faster on dual-core CPUs
    • Using temporary files for memory-hungry compression modes allows to raise maximum compression level up to –m8
    • Fast Tornado compression used in –m1 and –m2 modes, providing 10-100 mb/sec compression speed with zip-like compression levels
    • User-defined external compressors in arc.ini, so now you can use your favorite compressors (LPAQ, PPMonstr , CCM and any other) inside .arc archives
    • Encryption of data using aes and archive headers using aes256+twofish+serpent, keyfiles support (-p, -hp, -kf, -ae, -hae)

    There is also number of minor changes:
    • Use -mx for maximum internal compression
    • Use -max for maximum compression involving external compressors (PPMonstr, ECM, Precomp and PackJPG as defined in shipped arc.ini)
    • Implemented –m6p..-m9q methods
    • File filtering based on modification time, size, name (-ta, -tb, -tn, -to, -sl, -sm, -n)
    • New 'lb' command lists bare filenames of files in archive
    • 'y' command renamed to 'ch' for compatibility with RAR
    • No more need to add "--recompress" when recompressing archives using "ch" command: "Arc ch archive –mx"
    • --display option was greatly enhanced; use -di to display all information
    • -z also works on extracting, saving archive comment to file
    • Improved help displayed by "Arc", added help to user queries
    • Temporary files are deleted when exiting by Ctrl-Break
    • Renamed groups in arc.groups : $audio -> $wav, $rgb -> $bmp; added $precomp, $jpg, $iso groups

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    Thanks Bulat!

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    Member Vacon's Avatar
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    Hello everyone,

    Quote Originally Posted by Bulat Ziganshin
    as Vacon suggested, i piblish current state-of-the-art with FreeArc
    It is _my_ pleasure to have the possibility to enjoy the power of FreeArc, Pimple, PIM, FastTurtle and corresponding compressors developed by all the fine people here and I really appreciate the work of all people here.
    Its only natural to ask for a most recent version (specially if I had to learn a very new programming-language to profit from the results you got).
    Thank you for publishing! I believe many people will give very good feedback!

    Best regards!

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    Thanks Bulat! I found it a little bit dissapointing, that all of my extensionless files are compressed with PPMonstr Will add extensions and post both test results here!

    __version________________________size_______in___o ut _ speed
    FreeArc 0.40 (extensionless) ______11 840 821___132 / 133
    FreeArc 0.40 (extensions added)* __11 842 821___733 / 1 057 (kB/s)

    *) Precomp crashes on my PPS file, so I didn't add its extension and left it to be compressed via PPMonstr. I have informed Christian about this issue.

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    Programmer Bulat Ziganshin's Avatar
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    Quote Originally Posted by Black_Fox
    all of my extensionless files are compressed with PPMonstr
    i know that this is a problem. planned to be fixed in 0.41 by adding file contents analysis. btw, how about testing -m1..-m4, -mx modes (with extensions, of course)?

    Vacon
    of course, you are right. its me whose behavior is rather strange

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    ___version_param_____size________in____out __ speed (kB/s)
    FreeArc 0.40 -m1___19 107 800___9 548 / 16 619
    FreeArc 0.40 -m2___13 521 365___5 286 / 9 548
    FreeArc 0.40 -m3___12 906 084___2 574 / 6 166
    FreeArc 0.40 -m4___12 447 159___2 387 / 5 692
    FreeArc 0.40 -mx ___12 472 704___2 070 / 5 103
    FreeArc 0.40 -max __11 842 821____ 733 / 1 057

    including pps's extension (with exception of -max)

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    Programmer Bulat Ziganshin's Avatar
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    thank you

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    Programmer Bulat Ziganshin's Avatar
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    i've deleted the program because in 7-zip forum there was a link to this thread. sorry, but i don't want to widely spread verson which create archives which will be incompatible with 0.40 final - this will only make users disappointed. if anyone really want to test this version just to see how it works and/or need sources - please mail me

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    As has been said in first post...
    Quote Originally Posted by Bulat Ziganshin
    - dont advertise it outside of this forum

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    Member Vacon's Avatar
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    Hello everyone,

    Quote Originally Posted by Bulat Ziganshin
    ive deleted the program...
    Sad, but reasonable...
    I hope, that will be no reason to delay announcements / publishing of future-versions! Until now there has been only one little slip, dont bother too much!

    Best regards!

  11. #11
    Programmer Bulat Ziganshin's Avatar
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    no problem for me, i just protect less experienced users from misusing this demo version for real work

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    Hello everyone,

    Quote Originally Posted by Bulat Ziganshin
    i just protect less experienced users from misusing this demo version
    That a bonus-point for you!...

    Quote Originally Posted by Bulat Ziganshin
    no problem for me,
    And you prevent a whole bunch of "so called experts" shooting at you, because of unfinished features or lacking compatibility between beta and final. Sharing progress in development should lead to sharing ideas and improving code, not to stop development by bothering author with problems he already is solving.
    And: Youve got a reputation to loose!

    Best regards!

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    >FreeArc archiver (Haskell application)
    >Homepage: http://www.haskell.org/bz/arc.htm

    I got a 404 of the freearc homepage.
    Please fix it. Thanks.

  14. #14
    Programmer Bulat Ziganshin's Avatar
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    you can download 0.36 version as http://www.haskell.org/bz/FreeArc.7z

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    Quote Originally Posted by Bulat Ziganshin
    you can download 0.36 version as http://www.haskell.org/bz/FreeArc.7z
    This is also a 404 page too.

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  17. #17
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    Quote Originally Posted by Bulat Ziganshin
    This link works, thanks.

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