> I don't know if there's a compression library available that
> fit's our need. First and most important it must have a
> license that permits us to include it in the distribution
> under our existing license. Second it's implementation must
> not cause any problems in the backend like memory leakage or
> the like.
LZO (Lempel-Ziv-Oberhuemer) sounds like a candidate.
http://wildsau.idv.uni-linz.ac.at/mfx/lzo.html
It is a realtime compressor, designed for real time
compression/decompression of data.
It is really fast, like >20 Mb/s decompressions are easily possible and has
a pretty good compression ratio,
almost as good as gzip, since it favours speed over ratio.
It seems to have a pretty safe and compatible license.
It comes with a gzip cmdline compatible program called lzop.
I really love it.
Andreas