[PD] GEM: pix_film terribly slow in Ubuntu

John Harrison johnharrisonwsu at gmail.com
Mon Aug 16 02:29:18 CEST 2010

I don't have problems with codec performance in ubuntu 10.04. I would 
try playing the videos with mplayer, totem and/or vlc to see if the 
performance problem is a codec one. Also do you have a graphics driver 
with 3D hardware acceleration? if you type

glxinfo | grep direct

is direct rending a Yes or a no?

(if you don't have glxinfo installed, it's in mesa-utils i.e. sudo 
apt-get install mesa-utils)


On 08/15/2010 03:53 PM, Matteo Sisti Sette wrote:
> Hi,
> I'm trying to play some mpeg4 and h.264-encoded video files with 
> pix_film in Ubuntu 10.04, and it is terribly slow: it reads about 4-5 
> frames per second and eat 100% of the CPU.
> The files have aproximately 900x500 resolution, which is nothing 
> exagerate; and even Adobe Flash Player can reproduce the same files 
> seamlessly at their full (25fps) rate without consuming more than 
> about 40-50% of the CPU.
> Any idea of what the issue can be? Is it the codecs? I guess I have 
> whatever codecs came with the Ubuntu distro. Are there any codecs with 
> better performance that I should insall?
> Or is this the best performance I can expect under linux?
> Thanks
> m.
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