[Kwintv] Comments on latest qtvision

[Rizsanyi Zsolt]

On Friday 25 October 2002 04:32, George Staikos wrote:
> On October 24, 2002 21:37, Rizsanyi Zsolt wrote:
> > On Friday 25 October 2002 01:04, George Staikos wrote:
> > > On October 24, 2002 18:50, Rizsanyi Zsolt wrote:
> > > > >    The real question is, why would anyone want to use the same v4l
> > > > > device from both v4l-direct and v4l-xv-bridge?  This is more for
> > > > > development purposes. After that, the device will be either v4l or
> > > > > Xv, but not both.
> > > >
> > > > Yes you are right.
> > > > Why I asked for this was that when you try to record under zapping it
> > > > automatically changes to v4l mode, and you can easily switch back
> > > > when you are done with it. (if I understand it correctly you can not
> > > > do recording with xvideo).
> > > > But then you know that the user wants to switch driver, so that case
> > > > is different.
> > >
> > >    Hmm.  Interesting.  I'll have to think about that.  However, V4L
> > > mode is almost as good as Xv mode for me.  It only uses 10% cpu which
> > > is acceptable. If we could improve on this, then we probably wouldn't
> > > need to worry too much.  I really hate to make special cases in the
> > > code for this.
> >
> > I would also note, that here it uses more than 30% CPU, and I dont have
> > much worse cpu than you (1.2GHz athlon).
>
>    Yikes that's not good.  Do you have DDR ram?  Maybe it has to do with
> G450 vs G550?  I'm not sure.

I have 16MB DDR ram on the G450 (and SDRAM as the main memory).

I have looked at KDE System Guard and it shows that 25% of CPU is used by X 
and only 0.5% by qtvision. (yes that is not more than 30% - I guessed that 
value from my kicker applet)

Regards
Zsolt