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12-05-2003, 09:11 AM
mistermickster mistermickster is offline
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Is there an easy way to determine the correct field order for an interlaced DVD source
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12-05-2003, 09:13 AM
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I fear not. May be I'm wrong.
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12-05-2003, 09:34 AM
kwag kwag is offline
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Read here: http://www.inmatrix.com/articles/ivtc1.shtml
Where it says "Selecting the correct field order:"

-kwag
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12-05-2003, 09:42 AM
mistermickster mistermickster is offline
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Quote:
Originally Posted by kwag
Read here: http://www.inmatrix.com/articles/ivtc1.shtml
Where it says "Selecting the correct field order:"

-kwag
Cheers kwag,

I knew you'd know
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12-05-2003, 02:08 PM
Boulder Boulder is offline
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You can determine the field order with a simple Avisynth script.

Code:
MPEG2Source("path\clip.d2v")
AssumeTFF()
SeparateFields()
Open the script in VirtualDub and find a spot in the clip where there's some motion. If the motion is smooth, the field order is top field first. If it's jerky, the field order is bottom field first. You can verify this by using AssumeBFF() instead of AssumeTFF().

IIRC, most DVD sources are top field first.
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12-12-2003, 10:01 AM
mistermickster mistermickster is offline
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Is it recommended that choosing the correct field order for interlaced sources is better than deinterlacing ?
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12-12-2003, 11:49 AM
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The one bases on the other!

Interlacing on an incorrect field order will result in a bad looking picture (as Boulder explained) cause when deinterlacing both fields become one frame ... an there do exist different ways and therefore diff. AVS filters.

DV standard is Bottomfield first for example.
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