[opensuse-factory] libpng16 will not read some (broken) png images
Hi List, JFYI, libpng 1.6.2, which is currently in factory can introduce fails when reading png, namely 'IDAT: invalid distance too far back'. See e. g. multimedia:apps/lilypond build for factory. Very probably, these images will not read anymore with newer libpngs. For multimedia:apps/lilypond example, there are 195 png images, only three fails to read. It is possible to use optipng to fix them or wait for 1.6.3, which will ship png-fix-too-far-back tool (see graphics/libpng17). I am going to create corresponding rpm macro to find and fix these PNGs in a package, where it is called. Again, these PNGs are said to be broken; they should be fixed upstream. If I've understood correctly, not supporting them should help libpng to be more memory-efficient. Further reading & links: https://git.reviewboard.kde.org/r/110314/ Thanks, Petr
Hi, On 23-05-2013 10:28, pgajdos@suse.cz wrote:
Hi List,
JFYI, libpng 1.6.2, which is currently in factory can introduce fails when reading png, namely 'IDAT: invalid distance too far back'.
See e. g. multimedia:apps/lilypond build for factory. Very probably, these images will not read anymore with newer libpngs.
For multimedia:apps/lilypond example, there are 195 png images, only three fails to read.
It is possible to use optipng to fix them or wait for 1.6.3, which will ship png-fix-too-far-back tool (see graphics/libpng17). I am going to create corresponding rpm macro to find and fix these PNGs in a package, where it is called.
Again, these PNGs are said to be broken; they should be fixed upstream. If I've understood correctly, not supporting them should help libpng to be more memory-efficient.
Further reading & links: https://git.reviewboard.kde.org/r/110314/
Unrelated to this, in Mono:Community/keepass we are getting libpng error: invalid after png_start_read_image or png_read_update_info Any idea about this one? Thanks. -- SUSE LINUX Products GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
On Fri, May 24, 2013 at 12:35:31PM +0200, Ismail Doenmez wrote:
Unrelated to this, in Mono:Community/keepass we are getting
libpng error: invalid after png_start_read_image or png_read_update_info
Any idea about this one?
Really unrelated. Feels like http://lists.cairographics.org/archives/cairo/2013-March/024160.html despite the false 'out of memory' error string: http://lists.cairographics.org/archives/cairo/2013-March/024162.html Try talk to John and/or Glenn (glennrp, john.cunningham.bowler both at gmail). Petr
On 24-05-2013 12:50, pgajdos@suse.cz wrote:
On Fri, May 24, 2013 at 12:35:31PM +0200, Ismail Doenmez wrote:
Unrelated to this, in Mono:Community/keepass we are getting
libpng error: invalid after png_start_read_image or png_read_update_info
Any idea about this one?
Really unrelated.
Feels like http://lists.cairographics.org/archives/cairo/2013-March/024160.html despite the false 'out of memory' error string: http://lists.cairographics.org/archives/cairo/2013-March/024162.html
Try talk to John and/or Glenn (glennrp, john.cunningham.bowler both at gmail).
Ok looks like we need the cairo patch. I'll see what I can do. Thanks! -- SUSE LINUX Products GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer, HRB 16746 (AG Nürnberg) -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org
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