Created attachment 167181 [details] AOM Compressed AVIF- Dolphin Cannot Display Thumbnail (Gwenview OK). SUMMARY *** Dolphin (see what is installed in additional info below) cannot display thumbnails for certain AOM compressed AVIF files (avifenc). Some are displayed but some are not. Gwenview can open them properly and displays thumbnails. Dolphin cannot display thumbnails for such AOM compressed photos. I give you an attatchment as example. Some other compressed AVIF files Dolphin displays properly. Since I have tons of AVIF (AOM) compressed photos all fail to display as thumbs in Dolphin (I made them in KDE 5 and there all was OK. Only KDE6 suddenly stopped supporting them, i.e. Dolphin has no thumbs. Gwenview displays them and has thumbnails). Talk about shared libraries (!) between KDE projects (Gwenview and Dolphin). See what is installed below in additional info. *** STEPS TO REPRODUCE 1. Get the attatchment 2. Open it in Dolphin 3. No thumbnail OBSERVED RESULT No thumbnail for this AOM compressed photos. (Gwenview OK). EXPECTED RESULT Fix the regression. Make Dolphin be compatible with AOM Compressed AVIFs. Just like in KDE 5. SOFTWARE/OS VERSIONS: KDE Plasma Version: 6.0.1 KDE Frameworks Version: 6.0.0 Qt Version: 6.6.2 Graphics Platform: X11 Graphics Processor: Intel Only ADDITIONAL INFORMATION: $ pacman Qs 'xxxx': kdesdk-thumbnailers 24.02 kdegraphics-thumbnailers 24.02 ffmpegthumbs 24.02 qt6-imageformats 6.6.2 kimageformats 6.0.0 libpng 1.6.43 libavif 1.0.4 libheif 1.17.6 libwebp 1.3.2 libjxl 0.10.2 webp-pixbuf-loader 0.2.7 libjpeg-turbo 3.0.2 openjpeg2 2.5.2
Worse here. I can't see any preview, thumbnail, nothing in Dolphin and GwenView, but Krita can open. All associated packages (and even more are) have been installed: kimageformats, libavif-bin, libavif-gdk-pixbuf, libavif15, libavif16, shared-mime-info) Dolphin version: 23.08.1 Operating System: Debian Trixie (Testing) KDE Plasma Version: 5.27.10 KDE Frameworks Version: 5.107.0 Qt Version: 5.15.10