Convert to AVIF on Linux

[Nurge59]

Hello,

I’m running Linux CentOS 10 (a Red Hat derivative), and I’m unable to use NConvert to convert files to AVIF.
I can convert to other formats (jpg, webp, tga, png, etc.) but not AVIF.
Here is the code I’m using:

Code: Select all

./nconvert -out avif -ratio -rtype lanczos -rflag decr -resize longest 1280  ./Tuxp.png

Et l'image

Tuxp.png

I get the following message:

** NCONVERT v7.300 (c) 1991–2026 Pierre-E Gougelet (30 July 2026/12:19:45) **
** This is freeware software (for non-commercial use)

Error: Don't know how to write this picture (./Tuxp.avif)

The file is created but it is empty.

This is all the more puzzling as this command works perfectly well on Windows 10
To install NConvert, I simply downloaded and extracted NConvert-linux64.tgz. I’m running my tests in this folder.
It might be a silly mistake, but I can’t figure it out (I’m new to NConvert)

Many thanks in advance

[cday]

Is AVIF listed as a supported output format, I haven't used NConvert for some time?

[Nurge59]

Thank you for your reply.
The AVIF format isn’t mentioned in the list of formats, but there's ‘libavif.so’ in the plugins, and it is supported as it works on Windows 10 and XNConvert also supports it (on Windows and Linux).
BTW, it seems to me that the list of supported formats isn’t up to date: WEBP isn’t mentioned either.