[MPlayer-users] mencoder question

jimbo yebster jyebster at yahoo.ca
Tue Mar 8 08:48:32 CET 2005

--- Martin Collins <martin at mkcollins.org> wrote:
> > I have a movie .mkv and a PIII500
> > 
> > The PIII is to slow to play the movie.
> > 
> > I was thinking: what about with mencoder to
> > transform the .mkv in another format?
> ...
> > How can I translate it in, I don't know, divx?
> > Would it be better for my CPU?
> You are confusing containers and codecs. mkv is a
> container like avi whereas divx is a codec like
> mpeg2 (actually it is a variety of mpeg4).
I was confused, yes.

> Your mkv may already contain divx.

In fact, no:
container is mkv, ok

Audio in the mkv is:
AUDIO: 48000 Hz, 2 ch, 16 bit (0x10), ratio:
16000->192000 (128,0 kbit)
Selected audio codec: [mp3] afm:mp3lib (mp3lib MPEG
layer-2, layer-3)

And video in it is:
opening shared obj '/usr/local/lib/codecs/drv4.so.6.0'
Selected video codec: [rv40] vfm:realvid (Linux
RealPlayer 9 RV40 decoder)

The realplayer video codec is slow?

> It is unlikely
> that the container is the bottleneck. You should
> first optimize your setup. Compile mplayer
> yourself making sure it is built for your CPU.

already done.

> Set your RTC so mplayer can use it.

done that too (and the echo 1024 too)

> Then check you have DMA switched on for your drive.

It's on a nfs server. But I partially solve the 
problem. Nfs server server was too heavily loaded.
Solved that, this is better, but I still have message
"your system is too slow"
(and yes, I use the -cache 8192)

> Check your MTRR settings.

cat /proc/mtrr 
reg00: base=0x00000000 (   0MB), size= 256MB:
write-back, count=1
reg01: base=0x10000000 ( 256MB), size=  64MB:
write-back, count=1
reg02: base=0xe4000000 (3648MB), size=  32MB:
write-combining, count=2
reg03: base=0xe0000000 (3584MB), size=  64MB:
write-combining, count=1

> Use a fast vo like xv or xvidix.
I use -vo xv
> If it is still too slow post the full output of
> mplayer -v 
MPlayer 1.0pre6-3.3.4 (C) 2000-2004 MPlayer Team
CPU: Intel Pentium III Katmai/Pentium III Xeon Tanner
(Family: 6, Stepping: 3)
Detected cache-line size is 32 bytes
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1
SSE2: 0
Compilé pour CPU x86 avec les extensions: MMX MMX2 SSE

Thanks for help

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