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Re: [MPlayer-users] Optimization for a slow CPU

To: "MPlayer usage questions, feature requests, bug reports" <mplayer-users@xxxxxxxxxxxx>
Subject: Re: [MPlayer-users] Optimization for a slow CPU
From: john znuck <wlwireless@xxxxxxxxx>
Date: Sun, 10 Sep 2006 20:49:18 -0700 (PDT)
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In-reply-to: <20060909173956.GJ23700@brightrain.aerifal.cx> 
I have been having sound ending prematurely or out of sunc with fullscreen 
video for a while now. following this read, I check on my mtrr setting and 
found that there was none for video ram. Following the instructions from 
http://www.mplayerhq.hu/DOCS/HTML/en/mtrr.html, now I can watch fullscreen 
video with proper sound.

Thks a lot, folks.

jz



Rich Felker <dalias@xxxxxxxxxx> wrote: On Sat, Sep 09, 2006 at 09:23:13AM 
-0700, Grant wrote:
> >> >I have a Celeron 700 with 192MB.  I just bought a brand new Lite-On
> >> >DVD burner from newegg.com and luckily it is watchable with -cache and
> >> >-framedrop.  It's pretty choppy though and if I don't use -framedrop
> >> >the sound cuts out after a couple seconds and it's really slow.  The
> >> >picture quality is also kind of mushy.  Is there anything I can do to
> >> >make it play smoothly and clean up the picture quality?  Here's the
> >> >command I'm using:
> >> >
> >> >mplayer -cache 8192 -framedrop -dvd-device /dev/dvd dvd://1
> >>
> >> In case you haven't checked, you should make sure that you have
> >> activated DMA on your drive (check with hdparm)
> >>
> >> A celeron 700 should be more than enough for watching DVD, and
> >> probably most MPEG4-ASP (DivX) too.
> >
> >For reference, my celeron 366 is plenty fast to play DVD and
> >mpeg4-asp. If a celeron 700 can't do it then the user has serious
> >configuration problems.
> 
> What command do you use to run mplayer?

I use vidix vo driver on my celeron 366 laptop which has ATI Rage
Mobility vid card. Command line is just the -vo xvidix or cvidix,
otherwise defaults. -vo xv is not that much slower but with just 366 I
need all the performance I can get on that machine.

> What kind of a
> misconfiguration could I have?

Missing MTRR's, slow DVD drive (DMA problems, irq masking, ...) ...?

Rich

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