On Wed, Jul 26, 2006 at 09:07:57AM +0300, ext Siarhei Siamashka wrote: > On Tuesday 25 July 2006 09:01, you wrote: > > > http://www.internettablettalk.com/forums/showthread.php?t=2405 > > > > > > Actually mplayer works surprisingly fast and has performance not much > > > inferior to default video player on Nokia 770 that is using DSP. And > > > that all is even without hardware colorspace conversion support! > > > > > > So is it possible to have an accelerated version of libxv on Nokia 770 > > > that would support colorspace conversion and scaling (no matter whether > > > using video controller capabilities or relay this task to DSP)? So that > > > a more universal and well supported ARM core could deal only with video > > > stream decoding. > > > > We don't have any plans to do this for the 770. > > Thanks for your reply. > > In order not to take much of your time, just a few more questions which > require only yes/no/maybe answers :) > > Does Nokia 770 hardware really support YUV colorspace?
My understanding is that the only support we have right now is through the DSP. > Is it technically possible (I'm not asking whether it is planned by Nokia now) > to have some simple API for YUV colorspaces support added probably as part of > libxsp? Having some sort of wrapper around the DSP access would be desirable, yes. It's theoretically possible to do with Xv as well, if someone's sufficiently motivated: there's no necessary tie between Xv and actually using the GPU. > Is Nokia interested in getting any assistance from the community (from me > for example) in improving performance and capabilities of the software > and libraries preinstalled on the device? I can't speak for the company as a whole, but I'd hazard a guess at the answer to that one generally being yes. :) > I'm interested in good video support and also game development (official > support for twice lower resolution in SDL using pixel doubling, support for > portrait/landscape screen orientation modes, background music playback > utilizing DSP core, virtual keyboard for X11 applications and SDL in > particular, etc.). So I don't mind contributing some of my free time to do > some work in order to get all this real. To be honest, I haven't played with the SDL stuff at all, and it's not really in my area, so I'd have to defer to someone else here. Cheers, Daniel
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