Bug#391988: advpng: makes 2-bit PNGs become 8-bit

2006-10-20 Thread Piotr Ozarowski 
After taking a deeper look at lib/png.c file I think this behaviour IS
intentional. It will be mentioned in manpage.
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pgpj7ECtLQbEW.pgp
Description: PGP signature

Bug#391988: advpng: makes 2-bit PNGs become 8-bit

2006-10-09 Thread Dan Jacobson 
Package: advancecomp
Version: 1.15-1
Severity: minor

I notice advpng causes 2-bit PNGs become 8-bit:
$ file *
a.png: PNG image data, 92 x 51, 2-bit colormap, non-interlaced
b.png: PNG image data, 92 x 51, 8-bit colormap, non-interlaced

But the man page doesn't mention if this is intentional or what the
tradeoffs are.


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Bug#391988: advpng: makes 2-bit PNGs become 8-bit

2006-10-09 Thread Piotr Ozarowski 
tags 391988 + confirmed upstream
thanks

I have forwarded this bug upstream:
http://sourceforge.net/tracker/index.php?func=detailaid=1573995group_id=33717atid=409010

test file can be downloaded from here:
http://www.libpng.org/pub/png/PngSuite/basn3p02.png


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