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Wrong field order?
Hey all,
I’m outputting my first project done on Final Cut Pro, so I’m new on the mac side. The final DVD exhibits what looks like wrong field order processing. You know, the separation that you see in the fields on pans and fast movements.
-Standard DV project.
-I exported my rendered timeline to a self-contained Quicktime movie using “current settings”.
-Imported that into Compressor and compressed using one of the DVD NTSC presets, changing only the data rate.
-Created the DVD from the resulting m2v using Encore.
-Tested on my TV, and I see the field order problem.So I thought maybe Compressor changed the field order somehow. I re-encoded with Procoder, which I use all the time with great results.
Same problem with finished DVD.
So I went back to check my settings.
My sequence in final cut shows it is indeed DV, with lower field first.
My Compressor project shows lower field first.
So where is the problem? Any ideas?
I’ll do some tests with trying the “wrong” field order to see if that fixes it, but where should I change it? In final cut? In compressor?
Or should I just de-interlace? Again where?
The video looks great on my MacBook Pro, but the LCD displays progressive, I believe, so I don’t know if I would see the field order problem there.
This is very frustrating. I used to working with AVID on my PC and never have this trouble. It seems like it should be very straightforward. Sigh.
Any suggestions would be most appreciated.
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10 Replies
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Hi Rafael,
No, it’s a widescreen plasma.
Thanks…
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[Vito DeFilippo] “Tested on my TV, and I see the field order problem. “
Hi Vito,
Is your TV a traditional CRT TV set?
rafael -
Vito,
The only way you can be 100% sure that there are interlacing problems is with an interlaced monitor or TV.
Try to play your DVD in a normal CRT TV. If it look OK there , no interlacing problems.
Rafael -
Thank you, Rafael. I’ll see if I can find one in the neighbourhood to try. They’re getting scarce!
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Just remembered something else.
The project came to me as a bare FCP project with the clips already captured. I opened the project and created a sequence. Started to edit.
At one point, I noticed that for some reason, the sequence was set as HDV.
I changed the sequence properties to DV anamorphic, selected all the clips and removed the distortion attributes to get the clips back to the proper size.
Would this have anything to do with it?
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Okay, just went to a neighbour to try their tv.
Put in the DVD and got a big error triangle in the middle that says “PSCAN!”.
And it played the file, but split the image in two copies mirror left and right. WTF?
I’m guessing it thinks the DVD is progressive, and it doesn’t like it?
But I never deinterlaced it in any step.
Sigh again…
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Hi Vito,
Is possible that the “HVD” (Upper-first) issue have messed your DV sequence.
Make sure that your DV sequence is Lower-first.
Also open the DV clips in the time-line and make sure that they don’t have added the “Shift-fields” filter.
rafael -
I’m having the same problem as you, did you manage to fix it?
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Don’t let Compressor guess the field order of your movie.
In the “Video format” tab> Field Dominance, set the one on your footage.
Then set “Frame Control: ON” and “Output fields: Same as source”.
rafael -
Hey guys,
Sorry, I should have updated the thread when I fixed the problem.
Turns out that when the DV footage was put into an HDV sequence by mistake, FCP ads a “shift fields” effect to each clip to make the DV material comply to the HDV field order.
When I changed the sequence property to put it to DV, FCP is not smart enough to remove those effects, so the field order was indeed wrong. I had to go into each clip and remove that effect.
After that, all was fine.
Thanks everyone for your time and suggestions. Much appreciated.
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