thanks for the detailed answer. russ sent from a non libre device
On Tuesday, 9 August 2016, Luke Kenneth Casson Leighton <[email protected]> wrote: > --- > crowd-funded eco-conscious hardware: https://www.crowdsupply.com/eoma68 > > > On Tue, Aug 9, 2016 at 10:40 PM, Russell Hyer <[email protected] > <javascript:;>> wrote: > > Hi Luke, > > > > So, if I've understood this post correctly, video playback on vlc > > would perhaps be within the bounds of what the A20 hardware / software > > could do? > > yes. ffplay, vlc, mpv, mplayer - all work fine, that's what this > update was about: > https://www.crowdsupply.com/eoma68/micro-desktop/updates/cedrus > > basically by using the full capabilities of the A20's accelerated > hardware (both CEDAR and G2D), the CPU usage is somewhere around the > 10% mark. peanuts in other words. > > the reason why those work is, through vdpau plugins there's two > parts: "decode" part and "actual on-screen display" part. all those > video players have an option to do *both* things, and the vdpau-sunxi > plugin that the Cedrus team wrote goes "okay, we're configured to use > G2D, let's just go for it". > > that's why you end up with the overlay issues, btw, because the G2D > hardware is told to write direct to an area on-screen, bypassing the > X11 protocol. > > anyway, it's *ASSUMED* in the webkit and xulrunner engines that the > "on-screen display" bit can be handled by OpenGL or... > something-else-don't-know-don't-care-but-basically-it's-not. > > and that means a bit of rewriting of both webkit and xulrunner so > that they hand over the display bit to G2D. that's going to require > some specialist work. > > l. > > _______________________________________________ > arm-netbook mailing list [email protected] <javascript:;> > http://lists.phcomp.co.uk/mailman/listinfo/arm-netbook > Send large attachments to [email protected] <javascript:;>
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