Settings -> Preferences -> Playback: Try and switch off "Play every frame"... Cheers & good luck, Georg
Am Saturday 21 March 2009 23:31:49 schrieb august: > hey y'all, > > > I'm in Mexico city trying to help the Centro Nacional de las Artes > develop a workshop/online educational material on Cinelerra. This > is a pretty exciting opportunity and we are lucky to be able to have > a 4 processor (each dual core) Macintosh at hand to set up an > editing station. It is a dual boot machine with osx on one side and > the latest ubuntu on the other, with Cinelerra running on the ubuntu > side of course. > > My problem at the moment is speed. We have 1440x1080 interlaced DV > footage (taken from the last Piksel festival no less) and while it > plays a single track of video just dandy, when I add a second track > that is to play simultaneously with another track (above it), the > playback slows down considerably. It doesn't matter if the top video is at > 100% opacity, whenever there are two video tracks on the > time-line...the video is slow. > > Of course, those of the people here who use final cut on the mac > side are not so happy about this....since final cut can easily play > two tracks of HD DV footage at once on the same machine. > > I see that the CPU's are all being used and that it is not maxed out > there. I've tried everything in the Cinelerra handbook, but to no > avail. The machine has SATA drives ...so hdparm doesn't really > work to speed up the harddrive (afaik)....even though I doubt the > bottleneck is the harddrive. I've tried switching the internal > format to YUV, YUVA, RGB...etc.. No speed up. I've tried > switching the viewer to use X11, X11-XV, OpenGL...etc...and there > was some speedup with OpenGL, but not enough. > > I've also tried all of those options on the compiled community > version, the compiled ADam Williams version, and the akirad > cinelerracv-smp version. > > I have a feeling it is something internal to Cinelerra....or could > there be some magical Xorg server command that saves the day? > > If you have any ideas or any suggestions, I'd love to hear it. > > -august. > > _______________________________________________ > Cinelerra mailing list > [email protected] > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra -- dr. kurt georg hooss schoepfung & wandel wissenschaftliche medienberatung breite strasse 6-8, d-23552 luebeck fon +49-(0)451-3003-474 (fax -333) www.schoepfung-und-wandel.de _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
