0.99.1 Weird JPEG-XL view bug - depends on Filename!

Bugs which are supposed to be fixed in the next test version (not available yet)

Moderators: XnTriq, xnview, Dreamer

Jou
Posts: 60
Joined: Sat Nov 03, 2007 9:38 pm

0.99.1 Weird JPEG-XL view bug - depends on Filename!

Post by Jou »

XnViewMP: 0.99.1 x64
OS: Windows 11 x64 and Server 2022 x64

JPEG-XL is viewed wrong like thumbnail resolution depending on the file name.

The files (foo large to attach): https://joumxyzptlk.de/tmp/XnVewMP-0.99 ... ilename.7z
The .jpeg is the original. The .jxl was created using cjxl.exe 0.7 with -d 0 -e 8, it transcoded the jpeg to .jxl as expected. The exact version used is: https://github.com/libjxl/libjxl/action ... 1295435010

However: The result in XnViewMP looks like this:
Original-filename-looks-weird.png

"Fix": Take the -разное out of the name. I.e. rename it from "1981 retro-science-fiction-разное-Robert-Tinney-Shigeru-Komatsuzaki-6834658.jxl" to "1981 retro-science-fiction-Robert-Tinney-Shigeru-Komatsuzaki-6834658.jxl" and is will view fine, just like this:
Renamed-looks-good.png

This is the most weird XnViewMP bug I came across yet - at first I thought the encoder failed :D. The .jpeg with the same name views fine.
You do not have the required permissions to view the files attached to this post.
Gaming in 4k / 6k / 8k / 15k / 16k? Yes! https://joumxyzptlk.de
Jou
Posts: 60
Joined: Sat Nov 03, 2007 9:38 pm

Re: 0.99.1 Weird JPEG-XL view bug - depends on Filename!

Post by Jou »

Oh, another one : D . XnViewMP cannot display it until it gets renamed. Just take "-девушка-теннис" out of the file name and it works. The original .jpeg works WITH the Russian characters.
I'll keep on converting knowing now where the problem is.
You do not have the required permissions to view the files attached to this post.
Gaming in 4k / 6k / 8k / 15k / 16k? Yes! https://joumxyzptlk.de
Jou
Posts: 60
Joined: Sat Nov 03, 2007 9:38 pm

Re: 0.99.1 Weird JPEG-XL view bug - depends on Filename!

Post by Jou »

Japanese / Chinese characters cause the same issue too, in both versions showing either a weird picture or simply being unable to open them, as long as they are JPEG-XL.
They all don't render a thumbnail while browsing in XnViewMP too, while "normal" .jxl files do show a preview in XnViewMP. Seems like a weird Unicode issue, but only when it comes to JPEG-XL, not to other formats...
You do not have the required permissions to view the files attached to this post.
Gaming in 4k / 6k / 8k / 15k / 16k? Yes! https://joumxyzptlk.de
Jou
Posts: 60
Joined: Sat Nov 03, 2007 9:38 pm

Re: 0.99.1 Weird JPEG-XL view bug - depends on Filename!

Post by Jou »

Since this could be an JPEG-XL Library problem I issued a bug report there too since the command line tool cjxl.exe cannot handle unicode as well.
See https://github.com/libjxl/libjxl/issues/683
Gaming in 4k / 6k / 8k / 15k / 16k? Yes! https://joumxyzptlk.de
User avatar
xnview
Author of XnView
Posts: 36286
Joined: Mon Oct 13, 2003 7:31 am
Location: France

Re: 0.99.1 Weird JPEG-XL view bug - depends on Filename!

Post by xnview »

:bugconfirmed: Thanks to your detailed description I can reproduce the problem.
Pierre.