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moonlight
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 Posted: Sun Sep 14, 2003 8:33 pm Post subject: Questions of using zlib |
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Can someone tell me what kinds of data stream ZLIB compression be applied
well, or any kind?
Besides ZLIB is there any other open-source compression methods you would
like to recommend? |
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Mike Brindley
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| Posted: Tue Sep 16, 2003 1:24 am Post subject: Re: Questions of using zlib |
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ZLib uses the same deflate method as PKZIP/WinZip etc. (excluding the new
deflate64 method).
Deflate is a very good general purpose method (i.e. good compression/good
speed)
that is used effectively on both text and binary data.
Other alternatives include BZip2 and PPM. These methods are much slower but
generally
give better compression ratios. BZip2 is supposed to be quite good on XML
data.
Personally, I think that ZLib offers excellent performance and is free to
use. It is used extensively
in many applications.
Julian Seward offers a BZip2 compression solution
(http://sources.redhat.com/bzip2) which is used
by PKZip for it>s BZip2 compression method.
regards
Mike
There are also open source offerings for PPM (do a google search).
"moonlight" <moonlight@168.net> wrote in message
news:XS%8b.141517$3o3.10129199@bgtnsc05-news.ops.worldnet.att.net...
[quote]Can someone tell me what kinds of data stream ZLIB compression be applied
well, or any kind?
Besides ZLIB is there any other open-source compression methods you would
like to recommend?
[/quote] |
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