Re: MNG decoder performance very bad

Glenn,

Am Fre, 2003-08-15 um 04.46 schrieb Glenn Randers-Pehrson:
> At 04:21 AM 8/15/03 +0200, Markus Meyer wrote:
> >Glenn,
> >
> >Am Fre, 2003-08-15 um 03.48 schrieb Glenn Randers-Pehrson:
> >> At 07:48 PM 8/14/03 +0200, you wrote:
> >> >
> >> >Time (ms)  Function
> >> >----------------------------------------------
> >> >1401,371  _filter_paeth (libmng_filter.obj)
> >> 
> >> Try using the sub filter or "none" filter when compressing your images.
> >> The Paeth filter is the slowest PNG filter to decompress.
> >
> >Thanks for the quick answer! Maybe you can recommend a program which is
> >able to write such images?
> 
> maybe ImageMagick (depends on what MNG features are present in your files)
> 
> convert in.mng -quality 90 none.mng

Thanks for the hint! That helped a lot. I also disabled
mng_set_cacheplayback and mng_set_doprogressive now, and now performance
is fine.

Thanks again!


Markus



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