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wrong field first
After years of never having this problem, yesterday I found that images shot with my dslr on 50i hd played with the wrong field order. Simple to adjust, you would say. But changing the field order to either lower first or progressive scan didn’t solve the problem. I tried every setting, and after an hour or so found that with custom settings and pixel aspect on hd instead of square, the video played well, though the screen had big black bands on either side.
Today I started up the project again, to find that now even with these settings the video wouldn’t play correctly. Again I changed everything, but now there seems to be no setting available that will play the video in its right size and field order. So every frame displays something that looks like either a shadow of the other field, or both field at the same time. One of them is solid, the other shows up in bands.
How do I get SVP12 to play this video as before: correctly with no bands at all?
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3 Replies
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[Joost Zeeveneegelbeek] “I found that images shot with my dslr on 50i hd played with the wrong field order.”
What field order is that? HD video should be Upper Field First (UFF). What are you using to determine that the field order is being interpreted wrong by Vegas Pro?
[Joost Zeeveneegelbeek] “One of them is solid, the other shows up in bands.”
What do you have the Deinterlace method set to in your project settings?
What device are you using to determine this? If your computer display, this is normal (unless you deinterlace it). View it on an interlaced PAL television and if it looks fine, don’t worry about what it looks like on your computer… interlaced video is not for computers.
There are also setting in Vegas Pro to deinterlace the preview window on the fly. You might want to try those.
~jr
http://www.johnrofrano.com
http://www.vasstsoftware.com -
Thanks for the quick reply.
I must admit assuming the field order is wrong because of this banded image of what I figure to be the next field. I have seen it elsewhere, even had it myself once or twice. But that was long ago, with SVP8. All I know is that then I started changing field order, format and interpolation, and at some point the problem was gone. Not so this time around.Fidgeting some more, pointed towards preview settings by you, I found that the problem disappears with preview quality at “preview half” or less. Anything higher, and there are these bands again. Don’t know why this happens on and off. Because recently I have edited shots from the same camera on the same system with preview at a higher setting, without this banding problem. And why would this sometimes go away with some odd settings?
During rendering the bands sometimes appear again. The rendered video is fine. I should have checked that. Sorry.
Here are the settings with which the banding disappeared yesterday, but appeared again today:
media properties: maintain aspect ratio, smart resample, uff, square pixel aspect
project properties: 1920×1080 24fps, uff, HDV1080 pixel aspect, interpolate fieldsI did however get broad black bands on either side of the image which is 16:9. When I changed back to HD 1080-50i, which is the format the video was shot in, I get the described problem, but the black bands on either side are gone. Deinterlace remained at interpolate. Whether in this mode, blend fields, or none, the problem stayd.
I also tried changing the resample setting, field order, or fps. Nothing else seems to work.Standard practice for me is to (pre)view on a tv. The problem looks harsher on a computer monitor, but that’s due to resolution, I gather. I have now turned on the deinterlace filter for the preview device.
Anyway: the problem seems to be with previewing only. I would like to be able to use a higher preview quality now and again. Any idea on why my computer would frustrate this?
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FWIW, I recollect that changing the physical size of the preview window affected, removed artifacts, not saying its similar to your issue.
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