Packaged WebP from Local GIF Embed Does Not Loop Infinitely

[Yuuzi261]

I discovered that when embedding a local GIF, the build process converts it to a WebP file—but unlike the original GIF, the resulting WebP only plays once and doesn’t loop indefinitely. I tried using FFmpeg to force an infinite loop with:

ffmpeg -i input.gif -c:v webp -loop 0 -q:v 100 output.webp

but the output still stopped after a single playthrough (after build). Ultimately, I worked around the issue by embedding an externally hosted GIF (for example, via Imgur), which preserved the infinite‑loop behavior.

[L4Ph]

Can you upload the file you used?
I'll check.

[Yuuzi261]

Here’s the original input.gif

[L4Ph]

thanks!
I will check later!

[L4Ph]

Could you please tell me the markdown you wrote?
Perhaps it's written like this:

![](./{your_image}.gif)

@Yuuzi261

[Yuuzi261]

yes, I put it in the same folder as the markdown file and wrote it like this

![]({name}.gif)

Is this invalid?

[L4Ph]

It is not well known, but images in src/ are automatically compressed to WebP.
This is not a fuwari feature, but a feature of Astro itself, and I don't think there was any way to disable it.

Therefore, the easiest way is to put it in the public directory. However, the public directory also contains implementation that uses Astro's Image component, so we need to do some verification.

[L4Ph]

I can't deny the possibility that it's a bug in Astro's image compression, so I might open an issue with Astro after I've verified it.
It might take some time, so if there's no major problem, I'd appreciate it if you could temporarily resolve it by pointing to the remote image URL.

[L4Ph]

withastro/astro#13689

I have confirmed that this is a problem on Astro's side, so I have opened an issue.
Thank you for your very helpful issue.
You have made this project even better.
@Yuuzi261