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How use av1 video with Firefox ?? [~solved] (lemmy.ml)

submitted 1 day ago* (last edited 19 hours ago) by Donatello@lemmy.ml to c/firefox@lemmy.ml

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cross-posted from: https://lemmy.ml/post/22627659

Hi,

I have a couples of AV1 videos that I would like to display on a html page.

I've tried
<video controls preload="none">
    <source src="FooBar.mp4">
</video>
but it trow back

I've tried first with MKV container as it's listed on the wikipedia page.

but this is not listed on the mozilla page https://developer.mozilla.org/en-US/docs/Web/Media/Formats/Video_codecs 🤔

Confusing.. as I found also this in the firefox release note:

Firefox 97 and later versions support AV1 video in the MKV container.

So WTF !?

I've tried also
<video controls preload="none">
    <source src="FooBar.mp4" type="video/webm; codecs='av01.0.08M.08'">
</video>
but that change nothing...

Any ideas ?

Thanks.

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[–] Donatello@lemmy.ml 1 points 22 hours ago

btw:

when I open .mp4 container version of it, by file path (url bar) like file:///X:/path/FooBar.mp4 it works, so Firefox can Open it… (now still to make it work inside an html page )

for .mkv it trigger a file download…