Re: Why is it that png files are not dependable over the long haul
Dustin Oprea <[email protected]> Mon, 6 Aug 2018 16:52:42 -0400
| Newsgroups | gmane.comp.graphics.png.devel |
|---|---|
| Message-ID | <CAOr1xOGewNw-VFv9S=zjTz2JhC-H5LmeqE9yZOFSUFoe-syo=Q@mail.gmail.com> |
Yeah, but, for the sake of your images, I'd consider writing them back out into some stable, standard format. - If this option keeps the write window as the default, you should theoretically just read then write them, and your images will be fixed. - If not the above, then maybe you can somehow tweak the reading window to be the size you need and the output window to be the default size with the help of this list. - If not the above, then encode and save the raw bytes, revert the hack, and then re-read the raw bytes, decode, and write them as once-again happy, conformant PNGs. Dustin On Mon, Aug 6, 2018, 16:16 Ruben Safir <ruben-v1XHP5QhJixWk0Htik3J/[email protected]> wrote: > On 08/06/2018 02:20 PM, Dustin Oprea wrote: > > The issue that you're having has existed for one month fourteen years > ago. > > Next year, it'll be fifteen years. In five years, it'll be about twenty > > since it happened. It's in the distant past by this point. Unfortunately, > > you were negatively affected by it. Unfortunately, not many others were. > > Unfortunately, it's not a quick fix. > > > > If you need to tweak libpng's behavior, just clone it, modify it, build > it, > > and keep it separate from the system version. No need for it to get > > complicated. > > > I see. So these options cause a break in libpng's behavior from the > sepecification, but allow me to render these images. > > I can rerender them then and forget about this happening again. > > > > -- > So many immigrant groups have swept through our town > that Brooklyn, like Atlantis, reaches mythological > proportions in the mind of the world - RI Safir 1998 > http://www.mrbrklyn.com > DRM is THEFT - We are the STAKEHOLDERS - RI Safir 2002 > > http://www.nylxs.com - Leadership Development in Free Software > http://www.brooklyn-living.com > > Being so tracked is for FARM ANIMALS and and extermination camps, > but incompatible with living as a free human being. -RI Safir 2013 > > > ------------------------------------------------------------------------------ > Check out the vibrant tech community on one of the world's most > engaging tech sites, Slashdot.org! http://sdm.link/slashdot > _______________________________________________ > png-mng-implement mailing list > png-mng-implement-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org > https://lists.sourceforge.net/lists/listinfo/png-mng-implement > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ png-mng-implement mailing list png-mng-implement-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org https://lists.sourceforge.net/lists/listinfo/png-mng-implement