non-GPL, LZO-alike data compression libraries?

Hi,

I'm working on a project that requires data compression and lightning speed
de-compression. So I looked at a few solutions. BZip, is apparently the best
to get a higher compression ratio. ZLib is good, but it's not fast enough.
LZO fits my requirement, but it's GPL. My project wasn't GPL, and I can't
afford its commercial license.

Is there any similar non-GPL data-compression libraries that does similar to
LZO in terms of decompression speed?

Thanks in advance,
--
He Shiming

He Shiming wrote:
> Hi,
>
> I'm working on a project that requires data compression and lightning spee
d
> de-compression. So I looked at a few solutions. BZip, is apparently the be
st
> to get a higher compression ratio. ZLib is good, but it's not fast enough.
> LZO fits my requirement, but it's GPL. My project wasn't GPL, and I can't
> afford its commercial license.
>
> Is there any similar non-GPL data-compression libraries that does similar 
to
> LZO in terms of decompression speed?
>
> Thanks in advance,

Have you tried changing the compression level and the strategy in zlib?

--
Michel Bardiaux
Peaktime Belgium S.A.  Bd. du Souverain, 191  B-1160 Bruxelles
Tel : +32 2 790.29.41

> Is there any similar non-GPL data-compression libraries that does similar to
> LZO in terms of decompression speed?

There are various speed improvements to zlib, frequently depending on
processor, environment and usage.  One of them is:
http://BitWagon.com/zlib_arm/zlib_arm.html

Also, it is quite easy to write from scratch a _de_compressor for LZO.
(It is so fast that there cannot be much to do!)  The file format
is documented, and the code for the _com_pressor may be consulted
without creating a derived work.

--