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> Until VAAPI support is implemented, videos in Firefox will be unaccelerated. I think it is the same deal for Chrome.

That is an issue of Firefox, other software (mplayer, mpv) support VAAPI for many years. And with youtube-dl integration in mpv, why even play videos in Firefox?

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Nope not an issue in Firefox, an issue in VAAPI. Firefox supports VAAPI just fine, VAAPI does not support this hardware/API. Considering it is a new API, I am still holding out hope that support gets added.

https://github.com/noneucat/libva-v4l2-request#branch=fix-ke...

And there's probably some branch somewhere that supports VP9 too.

This solution isn't great, there is direct support for the V4L2 codec API inside ffmpeg. So vaapi is not useful in this case.

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