On 10 March 2008, Junqian Gordon Xu wrote: > On 03/09/2008 05:06 PM, Paul M wrote: > > On 09/03/2008, Junqian Gordon Xu <[EMAIL PROTECTED]> wrote: > >> also, overall video performance (based on user experiences on other > >> roms) : c7x0 > c3x00 >> tosa > > > > I would guess that the ATI Imageon W100 in the the 750,760 and 860 > > makes them better at video playback, with the 1000 and 3x00 you need > > to overclock and use the bvdd stuff to get close? > > Yes, W100 is the king on Z. Actually, XorA and hrw drew the conclusion > for me. They have more experiences in the Z world. > > I'm also interested in a more quantitative analysis of the overall video > performance on the three devices, once the video section stabilizes in > Angstrom.
c3x00 support iwmmxt instructions, so decoding video should be probably faster there. As for bvdd, I suggested my help in adapting Nokia 770 optimized software scaler (it is used in maemo build of mplayer) to use it with bvdd long ago and more than once, but nobody seemed interested. It is not much work, but I don't have zaurus myself, so I would need someone willing and able to compile and test mplayer on this device. But this will only help in processing arbitrary video resolutions (useful for nontranscoded video). If nonscaled video (or 2x scaled by hardware) is still slow, that will not help much. BTW, when transcoding video, both GMC and QPEL are bad for performance. B-frames are good as they allow easy framedropping. _______________________________________________ Angstrom-distro-users mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users
