Joey, I hope you have a big hard drive... My experience has been that its best to leave the video as uncompressed as possible while editing. H264 was designed for playback and is a very CPU intensive codec not really suitable for editing. If you don't want to leave your source as DV, you can use something like the following to convert to MJPEG which has worked flawlessly for me in Cinelerra:
mencoder INPUT.ext -vf harddup -ovc lavc -oac copy vcodec=mjpeg:nr=400:vqmin=1:vqscale=0:vbitrate=20000:mbd=1 -noskip -mc 0 -f lavf -o OUTPUT.mov If you ever get source that doesn't have AAC audio, you can append :acodec=libfaac:abitrate=448 after mbd=1 and change -oac copy to -oac lavc. Also, that's using a recent SVN of mplayer, not the one in the repositories. Warning, those files can get really big, especially for 720p. As for the crashes, I had a problem with Cinelerra crashing in Ubuntu with Nvidia when using Gnome (specifically, the compositing manager). My solution was to use a simpler WM like fluxbox when doing video work, though there may be better solutions out there. Good luck! - Jim On Fri, 2009-02-06 at 16:17 -0800, Joey Stalone wrote: > To anyone who might be able to lend me a hand, > > I've been trying to install Cinelerra-cv for a couple weeks now. I've > had to reinstall my operating system several times in the process (so > I don't think there's any conflicts), and I would really like it to > work. > > My problem is, while Cinelerra loads the videos I want it to, it won't > play them. When I try to play them, the whole application shuts down > with no dialogue, no reason, just *poof* (or occasionally freezes up - > which I can't force quit, and the only solution is restarting the > computer). This happens when trying to play in either the compositor > window or the viewer window. When I click randomly on the video track > in the program window, the compositor window usually updates the image > (which makes me think it kinda works). > > I'm trying to import video that I've saved to my computer off of my dv > camera. The video is 720p and the codec is H.264 / AVC. The audio it > captures is MPEG-4 AAC. > > I noticed in all the documentation I've read, that I thank you for > sharing, that the MPEG-4 audio should be fine. Which leads me to > believe it's probably the H.264 that's causing my woes. > > Do you know if there is any work around for this? If there is > anything I could submit to get help? > > I've been browsing google for days, and most of the links I find > either don't help, or go to pages that aren't there. > > Any advice would be greatly appreciated. Thank you. > > I don't know if any of this information will be useful to you, but: > I'm using Ubuntu 8.10 32bit. > I have an Nvidia graphics card (that I've tried both enabled and > disabled) > I've installed Cinelerra and Cinelerra-gl. Both install and run fine, > but have the same crashing problem. > I've also tried changing my video drivers within the application, but > to no avail. > > Again, any help would be greatly appreciated. Thank you! > > Joey A. Stalone
