Re: 720p video on G4?
On Don, 2009-09-10 at 23:17 +0200, Rubén Gómez Antolí wrote:
> Michel Dänzer escribió:
> > On Sat, 2009-09-05 at 21:49 +0200, Rubén Gómez Antolí wrote:
> >> I'm trying to play a 1280x720 x264 video:
> >> (...)
> >> This video could play in AMD Athlon 1500+ with 4+ years old, I think my
> >> G4 is powerfull that it.
> > I'm afraid that while in theory the performance of these CPUs may be
> > about the same, in practise the Athlon machine still has several
> > advantages:
> > * Due to x86 being more popular, its code is probably better
> > optimized, in particular but possibly not only for the SIMD
> > extensions.
> > * It probably has significantly more memory bandwidth, not only
> > because it's a desktop vs. a laptop.
> > * ...
> Ok, I'm afraid that a future better optimized code for PowerPC isn't
> posible due minor desktop-laptop user since Apple is out; Do you think
> about? (I supposed that it's needed a high skill in program and PowerPC)
It's possible but unlikely.
> > Also, the X driver version / configuration may also matter. Make sure
> > you're using xserver-xorg-video-radeon from sid and that the DRI is
> > enabled.
> I'm using:
> ii xserver-xorg-video-radeon 1:6.12.2-3
> X.Org X server -- ATI Radeon display driver
> ii xserver-xorg-video-radeonhd 1.2.5-1
> X.Org X server -- AMD/ATI r5xx, r6xx display driver
> Did I need only "xserver-xorg-video-radeon"?
Have you checked that your Xorg.0.log says direct rendering is enabled?
> >> Anyone can play 720p videos on Powerbook G4 or similar?
> > Some 'simpler' 720p videos play mostly fine on my PowerBook5,8 (very
> > similar to your PowerBook5,7), but not a chance for 'more complex' ones.
> > I assume 'simpler' vs. 'more complex' is a lot due to the bitrate of the
> > video, but there may be other factors.
> Do you have a link to some "simpler" video, I want to try in my machine.
None offhand, sorry.
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer