Ghosting with progressive MJPEG in Best preview

R0cky wrote on 6/19/2008, 7:23 PM
I have a bunch of travel clips shot with a canon pointnshoot. They are 640x480 30 fps progressive MJPEG.

I want to render out in progressive. Project properties are 720x480 29.97 progressive. As are the render properties when I do that.

In the preview window and renders if the quality is set to best then you get ghosting like there's a field order problem or there is pull down. If you set the preview quality to "preview" it goes away.

Sometimes if you change the clip media properties to lower field first it goes away.
Deinterlace method in project properties has no effect which is what I'd expect if it's progressive media and project.

thanks all,
Rocky

Comments

R0cky wrote on 6/19/2008, 7:52 PM
Changing project frame rate to 30.00 from 29.97 has fixed this for previewing on best. If I render at 30.00 it also goes away.

Question, for final rendering and delivery on DVD, if I render it at 30.00 progressive, does it play back that way? Or a hair slower at 29.97?

I will be playing it on both a projector/DVD player combo that can do progressive and std. TVs by way of various DVD players some of which will generate interlaced output.

Any other tips for final rendering?
R0cky wrote on 6/21/2008, 7:16 PM
C'mon team, how about some suggestions...

Setting frame rate to 30.00 makes it work until I want to put it on a DVD. So I figured out if I set the media properties to undersample 0.1% to 29.97 then I can render at 29.97 progressive and be able to deliver on DVD.

Are there any other setups or a better way to do this?
farss wrote on 6/21/2008, 7:51 PM
If you want to change frame rate and be 100% certain you have it right here's how.

Set your project to the exact same fps as the clip.
Set the ruler to absolute frame. Measure and write down exactly how many frames long your clip is.
Change project fps to your target. Ctl + Drag the end of the clip so it's now the exact same number of frames as it was before.

There's possibly other ways however this is the technique explained by SoFo for converting between 24fps and 25fps. It will be 100% frame accurate. Changing the sample rate would seem not as precise.

Bob.