Jerky video in rendered output

PunchNBurn wrote on 8/2/2004, 3:10 PM
I am having one hell of a time trying to get an MPEG-2 render from V5 but the output is jerky as hell. It so bad that you see "motion trails" in high action parts. Problem exists even when I create a new project and do no editing at all. Just import AVI and render. I am rendering using the std templates for DVDA, separate Video MPEG-2 / Audio AC-3.

The input is an AVI thats pretty long, over an hour. I split the A/V events an render it in two pieces. I've even tried rendering only short 3 minute segments (all the way to DVD+RW burn), makes no difference. Source AVI looks perfectly smoothe.

I have tried creating a motion blur track and setting it to max, helped only a little. I have not changed the motion blur METHOD fom default. Don't think that would make a diff.

Strangely the media pool says the AVI is Lower Field First but if I set the project to LFF the problem gets worse. Weird! I have tweaked all the project settings and none seem to solve the problem. I've gone through about 40 renders of this stupid thing with bubkis to show for it.

BTW, the jerkiness is most pronounced when DVD is burned. From computer video the video is not quite so bad but still bad. I think thats because progressive scan vs. interlaced is somehow associated with this problem. If I play the DVD on the computer the problem is worse than just playing the rendered output directly.

Would any of the advanced MPEG rendering settings effect this problem??

Comments

PunchNBurn wrote on 8/2/2004, 3:13 PM
Oh one more thing I wanted to add. The jerkiness is ONLY in high movement parts. Still image parts are perfect.
TheHappyFriar wrote on 8/2/2004, 7:59 PM
right click on the clip & select the OPPOSITE (upper) field order (is says lower, correct?) Then, render it to the OPPOSITE (again, upper). Then burn to DVDRW & see how it looks. Then call me in the morning. :)
JaysonHolovacs wrote on 8/2/2004, 10:52 PM
One thing to check would be your bitrate... make sure that you are not using the default values for bitrate because I think there is a bug with them. Set them manually or choose one of the predefined templates, but don't just leave it at the default. If you bitrate is low, it will make the motion portions of the video have motion artifacts.

Not sure if this is what you are describing, just a thought.

-Jayson