Hello Scott, I tried several output formats and none of them will do. Always the crash happens at the edge of an new clip, after about 80-100 clips have been rendered. The video and audio are perfectly aligned for all clips and no gaps are present. That I can easily verify, not only by zooming in to a sufficient degree and checking all clips visually, but also by using the Alt key together with the left or right cursor key. If the end of the video and audio of a certain clip do not match, than Cinelerra will see two borders in stead of one between that clip and the next. It then will need an extra Alt-cursor right to get to the beginning of the next clip. The compositor window will show that.
I am afraid that I do not know how to get any further. And I have not even started to edit the movie. I just wanted to know if Cinelerra can render HD stuff from a JVC GZ-HD30 camcorder and it simply can't do the job. Ed > Ed, > Actually, your rendering parameter should be fine, since you are rendering > from > within Cinelerra. (I had initially thought you were rendering outside of > Cinelerra). I do notice that your bitrate is extremely high. That > shouldn't > cause a problem in itself, but I've had crashes when using high bitrates > like > that. You may want to use a lower bitrate or a more common render setting > that > you know works, just to confirm if it is a problem in the timeline or the > rendering parameters. > > Also, I've had crashes due to problems in the timeline when rendering hour > plus video out of Cinelerra for the following reasons: > -a bug while stacking video effects (specifically, when the Sharpen effect > was at the bottom of a stack of six other effects on a video track) > - there were breaks between clips on the rendered video (if you zoom in > all > the way on a track, make sure the clips are aligned next to each other) > > Here's a couple tips from my Beginner's Guide to Rendering Video > (http://crazedmuleproductions.blogspot.com/2007/06/beginners-guide-to-exporting-video-from.html) > 1) Keep the start and end of your video and audio tracks perfectly > aligned. > Make sure to zoom in to less than five frames to verify this. > > 2) Also, I've gotten crashes if I have a transition that overlaps a very > short bit of > empty space between two adjacent audio or video clips. To stop this, I > will go > to the end of a clip, zoom in all the way, and make sure that the video > and audio > tracks end at the exact same time. If they don't end at the exact same > time, I clip > off a bit of whatever track is dangling by using the mark in/mark out > indicators and > doing a "cut". I can then be assured that when I paste a new segment to > the end of > this recently snipped one that the segments will align perfectly. Once the > segments > are aligned, I then apply the transition. > > For troubleshooting purposes, try to hone in on the exact moment in the > timeline > where the render breaks. I found the Sharpen effect problem by rendering > the first > half of the video in the timeline and then successively rendering smaller > sections > of the timeline until I found the exact place in the timeline where the > render is > breaking. At which point, it is a matter of either finding a hole in the > video or > turning off effects/transitions until your render tests work without > crashing. > > This time consuming; however, if you've spend a lot of time editing, it is > the only > way to salvage all your hard editing work. > > scott > > _______________________________________________ > Cinelerra mailing list > [email protected] > https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra > _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
