Hi,
Like I told in my first message I'm trying to run Cinelerra 2.1CV on a 2
GHz, 1GiB RAM IA-32 AthlonXP Machine on Ubuntu 7.04 real-time.
Now I wanted to ask for general opinion what performance I can expect.
Although there are working binary drivers with proper OpenGL support for
my NVIDIA card installed Cinelerra performs quite poor.
While using the OpenGL output driver helps a little bit it introduces
its very own problems. It will playback video but without any applied
real-time effect and without any transition. Note that this driver also
has video problems say with GStreamer applications.
So I'm falling back to X11-XV output which will show effects and
transitions but with even poorer performance.
Generally speaking this is what I get:
* Playback of one half size PAL video track with mono sound:
~50% / ~60% CPU utilization.
* Playback of a full size PAL video track with stereo sound:
~90% / 100% CPU utilization.
We're talking about playback of a single dry video track with one or two
dry audio tracks. No effects, nothing. When using the OpenGL driver you
could subtract about 10%.
Turning background rendering on makes things even worse. CPU utilization
will remain at 100% during playback. So this is no option.
I wonder if there are any optimizations I could do to improve
performance.
Thank you.
Yours sincerely,
Dennis Schulmeister
--
Dennis Schulmeister - Schliffkopfweg 12 - 76189 Karlsruhe - Germany
Tel: 0721/5978883 - Fax: 0721/5705992 - [EMAIL PROTECTED]
http://www.windows3.de - http://www.denchris.de
http://www.audiominds.com - http://www.motagator.net/bands/65
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