[MPlayer-users] MPlayer performance problems with Compiz

[Dominik 'Rathann' Mierzejewski]

On Saturday, 21 June 2008 at 15:38, Diogo Franco wrote:
> I'm having some problems with athe 'usable' VOs when I'm using compiz.
> My video card is a NVidia MX4000 (NV18 C1), fixed function. CPU is a
> Semprom "Palermo" 2800+, with 768 MB DDR400 RAM. OS is Ubuntu Hardy
> 64-bit with linux-rt as the kernel.
> 
> MPlayer is r27120-4.2.3, FFmpeg is r13836. MPlayer links to libav* with
> dynamic linking and they both are compiled with "-O4 -pipe -march=native
> -mtune=native -mmmx -m3dnow -msse -msse2 -fomit-frame-pointer
> -ffast-math".
> 
> I made a few tests using the VOs to discover the best VO to use. The
> command line I used is:
> 
> for i in "gl" "gl2" "gl2:noglfinish" "xv:adaptor=1" \
>     "sdl" "x11"; do
>     sudo nice -n -10 mplayer -endpos 30 -hardframedrop -slices \
>     -nodr -vf-clr -correct-pts -benchmark -quiet -vo $i \
>     "$TESTVIDEO" 2>&1 | grep -E 'BENCHMARK|vo|VO|swscaler'
> done
> 
> I tested it with 2 videos, one is square pixel NTSC and the other one is
> 720p. They both are H.264 with AAC audio on a MKV container.
> 
> On .mplayer/config, the lavdopts are "threads=2:skiploopfilter=nonref".

Why are you using threads when you have a single CPU? There seems to be
a bug in threading, because I'm experiencing jerky video on my system
(dual core Athlon64) if I enable them. Try without.

Regards,
R.

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