[Buildroot] [PATCH 0/7] add Phonon support to qtopia4

[Hans-Christian Egtvedt]

On Tue, 9 Dec 2008 11:34:28 -0200
"Thiago A. Corrêa" <thiago.correa at gmail.com> wrote:

> >> > The reason playback is so slow is that you are probably not using
> >> > the pixel coprocessor (PICO) to do the work. That was why getting
> >> > gst-ffmpeg (libavcodec) with the AVR32 patches to work would be
> >> > very nice.
> >>
> >> This optimization with using the PICO should also be possible for
> >> Qt output, independent of video playback, shouldn't it?
> >
> > No, you will have to write optimized assembly to take advantage of
> > the PICO. Qt does not use the PICO by default, not even DSP or SIMD
> > instructions.
> 
> Isn't DirectFB optimized? Qt has a DirectFB output plugin since 4.4 if
> I'm not mistaken. It as a labs feature (labs.trolltech.com) that got
> integrated into mainline. I guess it's not enabled in buildroot builds
> yet though.
> 

AFAIK DirectFB does not take advantage of any AVR32 instructions or
PICO.

-- 
Best regards,
Hans-Christian Egtvedt