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HPAVC
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HPAVC CD-ROM.iso
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CODECS.ZIP
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README
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1995-10-16
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You will find in this directory four files:
- codecs.tgz V1.5 contains several compressers/decompressers
- a description of CompuServe-Unisys copyright, file LZW-COPYRIGHT
- this file, README
- the file LISEZMOI, the translation of README, but in French
Only the first file is compressed with 'gzip' and is a 'tar' archive.
How to recover the orginal files?
UNIX or DOS or any Operating system>gzip -d codecs.tgz
UNIX or DOS or any Operating system>tar xvf codecs.tar
You obtain a tree of directory with several codecs (coders/decoders) and a file
with some explainations (in the file compress.txt).
The tar file is no more useful and can be removed:
UNIX or DOS or any Operating system>rm codecs.tar
How to get tar and gzip programs? Just read comp.compression news group FAQ.
A copy of FAQ of comp.compression news group is available by ftp in
rtfm.mit.edu:/pub/usenet/news.answers/compression.faq/part[1-3].
One of the codecs is an LZW codec. LZW is is covered by U.S. Patent 4,558,302
and foreign equivalent patents, which are owned by Unisys Corporation.
The code may not be used for commercial or for profit purposes or incorporated
in another product, without first obtaining a license from Unisys Corporation.
Please read file LZW-COPYRIGHT.
Furthermore, the LZW codec of the package is more than a GIF encoder/decoder,
since it is able to handle general LZW file (as GIF, TIFF, etc).
If you have some problems or infos to give, please use the following e-mail:
dbourgin@ufrima.imag.fr
(David Bourgin)