Jitter when rendering DV to VCD

fuzzzzy wrote on 8/3/2003, 6:26 AM
I have captured a DV which plays fine from my DV camera, however after burning to VCD it is jittery on playback from the DVD player, especially when the camera pans, with the camera stationary it seems OK. It's as if the pixels cant't cope with the rapid scene changes..any suggestions please.

NB I have covered all the standard requirements i.e. seperate high speed HDD etc

fuzzzzy

Comments

farss wrote on 8/3/2003, 6:33 AM
As your only encoding and the DV plays OK its got nothing to do with your PCs speed, should work on a 486!

To start with VCD is not the worlds greatest medium for video, its only low bitrate mpeg1 although having done a few hundred I can usually get reasonable results.

I don't know how fast your camera motion is to really guage if you've just hit the bitrate limit of the format or if something else is wrong. Which encoder did you use to produce the mpeg file? Did you use the stock standard VCD setting?

If everything there is kosher you could try adding some motion blur to smooth out the pan or else go to SVCD which has a higher bitrate and better resolution although you won't fit as much video on a CD.
fuzzzzy wrote on 8/3/2003, 6:42 AM
THanks,

I 've tried SVCD which is acceptable i.e no jitter, but like you said space is a problem.
I used the standard VV4 "Burn to disc " which I presume uses VV standard MPEG settings

fuzzzzy
farss wrote on 8/3/2003, 7:52 AM
You could try a better mpeg encoder like TMPGEnc, its free for mpeg1, money for mpeg2. Its seems to do a better job on 'problem' video than the MainConcept one that VV use.

I use it all the time, I lke the way I can setup a render batch and let it run overnight.

With TMPGEnc you can control the amount of time it spends on motion estimation which may help in your case, mind you if you set everything to best quality it will take quite a while to render!

For what its worth I also use Nero to 'author' the VCD, that way I can have menus.

Don't even go near Nero's mpeg encoders, they are really bad, just bring the mpg file into Nero, it'll check it for conformity but not touch the contents.
fuzzzzy wrote on 8/3/2003, 8:48 AM
Yes you're right, nero mpeg encoder sucks, the jitter was gone, but picture quality was bad.
This however still leads me to believe that something with VV4 is not kosher, quality is good accept for jitter....jitter problem to my mind has always been a weakness with VV, with VV3 there were often jitters when inserting a slo-mo scene. The same clip would not jitter with studio 7???

I'll try TMPGEnc.

fuzzzzy