https://bugs.kde.org/show_bug.cgi?id=461661
--- Comment #3 from John <kdelo...@mozej.com> --- After updating, yesterday, wallpaper was gone (see bug text above) and substituted without my consent to KDEs default. After updating, yesterday, SDDM background was gone (see bug text above) and substituted without my consent to KDEs default. After updating yesterday, KDE lock screen background was gone (see bug text above) and became blank (PURE "SHOUTY" WHITE). Nerve wracking as, I thougth update broke something/resetted my KDE configs. It did. I CANNOT reinstate .avif as: 1. Wallpaper, 2. SDD Background 3. Lock Screen. Webp works but is 2.3x bigger than avif. How the file was made: 1. Creation of HQ PNG Art 2. Scaling with SINC with graphics magic [$ gm ....) 3. Using libaom avif to compress it: $ avifenc -c aom -j all -s 0 -a aq-mode=2 -d 8 input.png output.avif Various Test Resaults: Info: All Files from RAW/ARW/NEF imported with dcraw preprocessed with Gimp (exposure fix for multifolder ones). Also huge NASA TIF Zero reencoding from one lossy compression to the other lossy compression. Zero defaults. Always the best parameters (--preset, --hints, scaling, sharp color conversion and multithreading for speed - e.g. in cwebp -mt .... as well as using HQ PNG as intermediary for compression when appropriate). Always according to documentation and man pages. Visual inspection always done. Size numbers: tiff/jpg=14794194/2248182=6.581 (no exif, no thumbs arythmetic, color profile...) tiff/jpg=14794194/2261881= 6.541 (full, arythmetic) tiff/jpg=14794194/2413580=6.130 (plain, color profile) tiff/webp=14794194/2844252=5.201 (z9, losless) tiff/avif=14794194/158132=93.556 (avifenc -c aom -j all -s 0 -a aq-mode=2 -d 8) web/avif=2844252/158132=17.987 In the last example you can see that AVIF was 18x smaller than webp. I did at least 13 different photos: Picture, Photos, Text, RAW file. big HQ PNG Art, photos with more small details, photos with less details and stuff etc to see compression sizes and quality. -- You are receiving this mail because: You are watching all bug changes.
