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Comment by initramfs

8 hours ago

for gifs? it seems an image format would be more backward compatible with older devices. Edit: by image format, i meant lightweight animation without a video codec.

The sites like tenor/giphy/klipy all convert to multiple media formats and then have meta embed properties with multiple formats.

Sites/apps like Discord sometimes consume the mp4 instead of gif or webp when embedding (and in Discord's case they're not hotlinking, I believe they're running it through their own media proxy service).

For example, <https://klipy.com/gifs/begone-witch> turns into <video> (with ARIA GIF label!) and src <https://images-ext-1.discordapp.net/external/kQT1eR3Sa6g3mZ_...>

7.1 MB gif => 679 KB mp4

hi initramfs, i responded to robottoaster who referenced patent encumbered mp4, as alternatives there are vp9 and av1.

image formats are more backward compatible, but at some point one has to ask, how low do you want to go? vp9 plays on iphones from 2020 and android phones from 2010. I think animated avif files are basically av1 video files, like animated webp is vp8/9 video.

Animated gif is playable anywhere, but 10x bigger. For a wiggle blog or website I'd provide animated png alongside anaglyph, or anaglyph only.

There is also animated Jpeg XL *.jxl files for the bleeding edge. It's a pure image format but support is not there yet.

  • hi fseifken,

    Thanks for the response and I agree there are benefits to newer formats. I actually do prefer newer codecs when I am using a newer system, such as AV1 (I actually wrote a blog post on that yesterday https://inavoyage.blogspot.com/2026/06/720p-on-384kbps-how-h...), and recall avif, but forgot about it.

    I think .avif sounds preferrable since it is single frames able to play animations using the same library as av01. I am curious how much CPU usage it needs for a just a few frames. A Pentium 1 might not be able to play it easily, but I imagine a dual core Intel E6400 wouldn't have much of an issue, even if it is 20 years old.

    Yeah, basically the only reason I suggested older support was because it was just a couple frames (maybe 5 tops), as opposed to something that uses hundreds or thousands of frames.