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AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Sat Mar 23, 2024 3:29 pm
by christb
I run into following problem when I try to save as AVIF: "not a picture"
- I tried different AVIF Write Settings and Options without success (incl. deactivating MultiCore)
My System
- XnConvert Version 1.100.1 - x64 (Feb 25 2024) - Libformat version 7.172
- MacBook Pro, 16-inch, 2019, Intel Core i9

- Mac Version.png (170.39 KiB) Viewed 3154 times
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Thu Mar 28, 2024 2:02 pm
by xnview

Thanks to your detailed description I can reproduce
the problem.
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Mon Apr 08, 2024 2:34 pm
by xnview
This problem is supposed to be fixed in
XnView MP 1.7.1. Please check and confirm the bug fix here.
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Mon Apr 22, 2024 11:15 am
by andreasgregor
For me this problem is still there in the latest versions of XnConvert and XnView.
---
MacBook Pro
16 Zoll, 2019
Prozessor 2,3 GHz 8-Core Intel Core i9
Grafik AMD Radeon Pro 5500M 8GB
Intel UHD Graphics 630 1536 MB
Speicher 32 GB 2667 MHz DDR4
macOS 13.6.5 (22G621)
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Tue Apr 23, 2024 6:33 am
by xnview
XnConvert is not yet updated, but XnView MP 1.7.1 too?
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Tue Apr 23, 2024 7:59 am
by andreasgregor
Yes. Freshly installed.
Do you need any further info about my system?
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Sat Apr 27, 2024 2:47 pm
by xnview
which MacOS? I can't reproduce on MacOS 14.1
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Sat Apr 27, 2024 3:27 pm
by andreasgregor
macOS 13.6.5 (22G621)
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Sun Apr 28, 2024 2:10 pm
by xnview
currently i have a problem on mac intel
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Sun Jun 02, 2024 8:10 am
by christb
Dear Pierre, thanks for taking care of this issue, but I'm not able to test it on XnViewMP, beause I simply can't find the option to export as AVIF.
I also selected AVIF in the Settings > Formats, but on export view its always a standard format selection. Please advice.
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Mon Jun 03, 2024 12:54 pm
by xnview
christb wrote: Sun Jun 02, 2024 8:10 am
Dear Pierre, thanks for taking care of this issue, but I'm not able to test it on XnViewMP, beause I simply can't find the option to export as AVIF.
I also selected AVIF in the Settings > Formats, but on export view its always a standard format selection. Please advice.
in Convert dialog, you have not AVIF?
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Tue May 27, 2025 11:03 pm
by Hein
I can confirm that I just ran into this issue still in the just downloaded latest Mac version:
XnConvert Version 1.105.0 - x64 (Apr 16 2025) - Libformat version 7.221
I have Avif as option and when selected and click convert, error for all images: xxxxxxxxxxx.avif : not an image
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Wed May 28, 2025 6:24 am
by xnview
Hein wrote: Tue May 27, 2025 11:03 pm
I can confirm that I just ran into this issue still in the just downloaded latest Mac version:
XnConvert Version 1.105.0 - x64 (Apr 16 2025) - Libformat version 7.221
I have Avif as option and when selected and click convert, error for all images: xxxxxxxxxxx.avif : not an image
Please check in XnView MP 1.9.0
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Thu May 29, 2025 1:39 pm
by Hein
Hi Pierre,
Sorry, but I am using Convert and I'm using it for converting only. Or am I missing something ....
Re: AVIF Conversion Error "Not a Picture" | XnConvert Mac
Posted: Fri Jun 27, 2025 11:18 pm
by christb
xnview wrote: Wed May 28, 2025 6:24 am
Please check in XnView MP 1.9.0
Hi Pierre,
just had the chance to test XnView MP 1.9.2 (now I can see the convert dialog). But unfortunately, both Export and Batch Converting to AVIF lead to the same exact issue. My system is still as described in my post (MacBook Pro 16", 2019, Intel, MacOS Sonoma, now 14.7.5)