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

Thiago A. Corrêa thiago.correa at gmail.com
Tue Dec 9 13:34:28 UTC 2008

>> > 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.

Kind Regards,
    Thiago A Correa.

More information about the buildroot mailing list