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.
