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Thread: What AVIF viewers are there?

  1. #1
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    Question What AVIF viewers are there?

    EDIT: See post #14 for details of the bug reports.

    For those who don't know, AVIF is the upcoming new image and video format, so efficient that Netflix uses it on supported devices.

    But.

    Ubuntu seems to have a major problem supporting AVIF.

    The newest version of GIMP on Flatpak (but not Snap, for some reason) supports AVIF.

    But I want an image viewer that supports AVIF! I have tried so many different viewers without success.

    According to Ubuntu Handbook and OMG Ubuntu, gThumb version 3.11.4 and higher supports AVIF. Well, I've installed gThumb 3.12 (from Flatpak), and it doesn't.

    Am I perhaps missing a library? What can I do to get an AVIF viewer?

    Thanks
    Last edited by Paddy Landau; October 19th, 2021 at 08:31 AM.
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  2. #2
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    Re: What AVIF viewers are there?

    Are you sure about gthumb?
    I downloaded a test image, and opened in gthumb (see cropped screenshot). The metadata shows it's HEIF/AVIF image.
    Yet, the gthumb version is:
    Code:
    [dmn@Sydney ~]$ gthumb --version
    gthumb 3.10.4, Copyright © 2001-2010 Free Software Foundation, Inc.
    So I'm a bit confused, as the article indeed says gthumb 3.12 added this support. Maybe because this gthumb is provided by Manjaro and they have included the support, while that's not true of Ubuntu's package?

    ADDED:
    Using new Ubuntu 21.10, I tested the Flatpak gthumb, 3.12, and can confirm it will not display the image. Maybe a later update it will.
    Attached Images Attached Images
    Last edited by Dennis N; October 16th, 2021 at 12:15 PM.

  3. #3
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    Re: What AVIF viewers are there?

    Thanks for the reply, Dennis.

    I see that Manjaro supports it, but not Ubuntu. So, that means that something is missing from Ubuntu — and from the Flatpak installation, because Flatpak is supposed to contain all of the dependencies.

    I'll see if I can figure out how to get hold of whoever creates the Flatpak, and ask about it.
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  4. #4
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    Re: What AVIF viewers are there?

    Quick question, Dennis:

    If you go to gThumb > Preferences > Saving, what do you see under Default options?

    I see JPEG, PNG, TGA, TIFF, WebP (screenshot below).

    Attached Images Attached Images
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  5. #5
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    Re: What AVIF viewers are there?

    I've reported the issue with gThumb. If you agree, please log in there and press the thumbs-up to vote for it. Thank you

    In the meantime, I'm still open to suggestions for an alternative viewer that supports AVIF!
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  6. #6
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    Re: What AVIF viewers are there?

    If you go to gThumb > Preferences > Saving, what do you see under Default options?
    The image options for saving in Manjaro's gthumb are the same as you show. To test, I tried "save as" with the image used in post #2, and this only works if I choose one of the supported save formats (such as png). So this version of gthumb can view these AVIF images, but not save them in that format.

  7. #7
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    Re: What AVIF viewers are there?

    Thanks, Dennis. Well, I'll have to see what the gThumb team tells me, or wait for a recommendation for an alternative AVIF viewer.
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  8. #8
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    Re: What AVIF viewers are there?

    What about the PPA that's mentioned in the OMG article? Did you try that?

  9. #9
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    Re: What AVIF viewers are there?

    Quote Originally Posted by Dennis N View Post
    What about the PPA that's mentioned in the OMG article? Did you try that?
    I didn't because the installation of the PPA gave an error.

    However, I've just retried, and it worked!

    Thank you. I'll mark this as solved.

    EDIT: Just updating with that PPA, not bothering to install anything new, fixed AVIF for existing apps such as Image Viewer and Nautilus.
    Last edited by Paddy Landau; October 16th, 2021 at 03:38 PM.
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  10. #10
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    Re: What AVIF viewers are there?

    Quote Originally Posted by Paddy Landau View Post

    The newest version of GIMP on Flatpak (but not Snap, for some reason) supports AVIF.
    It depends on the libheif version against which gimp is linked. It doesn't work if libheif is < 1.9. I compiled gimp on Ubuntu 20.04, libheif in repo is 1.7 so it didn't work, upgrading libheif to 1.20 from ppa and recompile gimp (2.10.28 though it is supposed to work since 2.10.22) and it works.

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