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  • Bijective BWT (7 Comments)

    David Scott has written a bijective BWT transform, which brings all the advantages of bijectiveness to BWT based compressors. Among other things, making BWT more suitable for compression-before-encryption and also give (slightly) better compression.

  • Asymmetric Binary System (116 Comments)

    Jarek Duda’s “Asymmetric Binary System” promises to be an alternate to arithmetic coding, having all the advantages, but being much simpler. Matt has coded a PAQ based compressor using ABS for back-end encoding. Update: Andrew Polar has written an alternate implementation of ABS.

  • Precomp: More Compression for your Compressed Files (3 Comments)

    So many of today’s files are already compressed (using old, outdated algorithms) that newer algorithms don’t even get a chance to touch them. Christian Schneider’s Precomp comes to rescue by undoing the harm.

  • On2 Technologies is Hiring

    There aren’t too many companies working on cutting edge codecs, and of those few this one is hiring. Best of luck.

  • China’s AVS Specifications Available (2 Comments)

    Its old news that China has developed their own Advanced Video Standard to avoid high licensing fees. English translation of the standard is now available, along with the IPR policy. Finally something technical that you can get your hands on to feed your appetite.

CodeProject reaches 1,000,000 Zip/Unzip projects

Posted by Mark Nelson on 14th March 2006 | Permanent Link

Well, maybe not a million, but sometimes it seems that way. Today’s version is from Jeff Glatt, who brings us the new article LiteZip and LiteUnzip, a project that creates a pair of DLLs to, you guessed, insert and extract files from zip archives. As Jeff puts it:

LiteZip.dll and LiteUnzip.dll are two Win32 Dynamic Link libraries. The former has functions to create a ZIP archive (ie, compress numerous files into a ZIP file). The latter has functions to extract the contents of a ZIP archive.

This project is largely based upon work by Lucian Wischik, who in turn based his work on gzip 1.1.4, zlib, and info-zip which are by Jean-Loup Gailly and Mark Adler. Lucian’s code has been reworked to be written in plain C, using only the Win32 API, and packaged into 2 DLLs. (Also some improvements to error-checking, some added functionality, and code-reduction/stream-lining was accomplished).

2 Responses to “CodeProject reaches 1,000,000 Zip/Unzip projects”

  1. Mark Adler Says:
    March 14th, 2006 at 8:42 am

    The article said: “based his work on gzip 1.1.4, zlib, and info-zip which are by Jean-Loup Gailly and Mark Adler.”

    The 1.1.4 version number must be referring to zlib, not gzip. (And readers should note that the most recent version of zlib is 1.2.3.) gzip and zlib are by those authors, but the Info-ZIP utilities are by many authors, including those.

  2. Mark Says:
    March 14th, 2006 at 8:16 pm

    Sorry for the poor fact checking on my part Mark - I guess I just don’t pay much attention to the stuff inside the blockquote tag since I didn’t write it.

    BTW, were you on the exultant aerobraking team?

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This entry was posted on Tuesday, March 14th, 2006 at 4:26 am by Mark Nelson. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.