Dear Beyond Linux From Scratch folks,
Mozilla Firefox bug #1644610 ([X11] Implement ffmpeg/VAAPI video
playback, pixmap-based image sharing, basic compositor) [1] has three
patches to support video playback using FFmpeg/VA-API.
Maybe we want to add a note for those, as it’ll save some energy and
reduce noise, if the GPU can be used for that.
From Rinat:
(In reply to Jean-Yves Avenard [:jya] from comment #6)
There's no gain in performance as the GPU readback eats all the gain made
by the HW decoder.
Basic, no accel, jumps from 3.4 W to 4.0 W, with about 3.5 W most of the time
Basic, with accel, jumps from 2.5 W to 3.1 W, with about 2.7 W most of the time.
There is a clear power consumption benefit.
Also, not for the sake of debates, but for comparison:
WebRender, no accel, jumps from 4.4 W to 4.7 W, with about 4.5 W most of the
time.
Kind regards,
Paul
[1]: https://bugzilla.mozilla.org/show_bug.cgi?id=1644610
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