Re: hardware codec / acceleration from GPU on browsers and media players

Jan Stary <[email protected]> writes:

>> hwdec=auto takes care of it, and for me, it does show a significant
>> difference in CPU use while using it. `vainfo`, part of libva-utils
>> port, shows the supported codec. As long what you're reproducing is
>> supported by your GPU, you should see some difference.
>> I don't really recall the situation for browsers.
>
> When playing a supported codec wit mpv,
> it will explicitly say 'using hw decoding'.
>
> Is there a way to tell explicitly whether e.g. firefox
> is using libva when playing a video (as opposed to an observed
> cpu drop, which might be due to other stuff)?
>
> BTW the drop in eletrictity consumption (between mpv playing
> a video with and without hw accell) is quite negligible. But
> that's to be expected I suppose: the GPU does the decoding
> more efficiently, but the video still needs to get decoded.
>
> 	Jan

I believe in Firefox you can go to about:support and check in the
media section.