Firefox flatpak flathub does not load hevc


after installing flatpak install flathub org.freedesktop.Platform.ffmpeg-full
it shows hevc green
what is wrong.
why it did not install that package

Why installing a flatpak for ffmpeg?
The rpm from rpmfusion works wonderfully for almost everyone.

With the rpmfusion-free repo enabled the command to do that would be
sudo dnf swap ffmpeg-free ffmpeg --allowerasing

To specifically answer your question about the hvec codec, the flatpak contains that codec, but ffmpeg-free on fedora does not.

I have tested a couple of HEVC tester pages with FF from Flathub on Silverblue, and the videos get rendered.

What is not working for you?

i use flatpak version of firefox instead of rpm one i remove the rpm one and use flatpak one

it will but software decode in not available if you are using flathub firefox
check about:support scroll down

As much as possible you want hardware decoding. When using software decoding it tasks the CPU with decoding while the hardware GPU decoding is much faster and less demanding.

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yes but it should have supported
in my mac i find this is supported
after research i find after installing

it solved

Actually it’s only software encoding that is unsupported, as per your screenshot.


this one was after my fix applied
here is what you see on fresh install of firefox flathub flatpak