[Ffmpeg-devel] lzw compression in tiff encoder (qualification task for GSoC)

Michael Niedermayer michaelni
Fri Apr 6 16:40:09 CEST 2007


On Fri, Apr 06, 2007 at 03:30:43PM +0200, Baptiste Coudurier wrote:
> Hi
> Bartlomiej Wolowiec wrote:
> > Hi,
> > As a supplement to my qualification task for GSoC I implemented LZW 
> > compressor. I think that my code is fast, universal and it can be easily used 
> > in other encoders. My implementation use hash table with simple hash function 
> > (I've used LZW prefix code and xor to calculate new hash value). So, I'm 
> > sending two files: one with lzw encoder (lzw.patch) and one with patch to 
> > tiffenc.c (tifflzw.patch). 
> Good, you may be interested in using your lzw encoder with gif also,
> which atm does not use lzw compression.
> I also quickly tested tiff encoder, and unfortunately it does not play
> in quicktime, if you can have a look.

i think tiff in QT support is very low priority ...


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I have often repented speaking, but never of holding my tongue.
-- Xenocrates
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