[Mplayer-advusers] Bug? Anomalous CPU usage when playing HDTV clips.

[John Stebbins]

I thought of that too.  But there are a couple of things that make me
think that there is some other problem here.  One is that I can create
the same symptoms by leaving the image size constant, and increasing the
frame rate.  The other is that xvinfo tells me that the max XvImage size
is 2048x2048.  xvinfo could be lying.  I could be dealing with 2
unrelated problems.  There could be a size limit (that xvinfo
mis-reports) and a bandwidth limit (that appears to be around 54MB/s
with the clips I've tried).

I think I'm going to have to lock myself in a closet for a weekend with
the source code and a debugger to figure this out.

On Wed, 2004-03-24 at 22:45, D Richard Felker III wrote:
> On Fri, Mar 19, 2004 at 04:12:41AM -0800, Ivan Kalvatchev wrote:
> > I've just got another (simplier) idea.
> > It could also be connected with VSync (changing picture
> > on retrace). You can test this by increaseing monitor
> > vertical refresh rate. Or finding option to disable
> > VSync.
> 
> My guess is that the hardware only supports up to a certain image size
> natively, and the stupid drivers emulate scaling in software for
> larger images...
> 
> Rich
> 
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