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Why converting uncompressed SD video to ProRes flips the field dominance to upper?

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Jeff Cotten
Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 7:41:04 pm

When I convert a SD video file to ProRes 422 using compressor, it outputs a file that is upper field first. The uncompressed file is lower field first. I checked the "Frame Controls" setting in compressor and it is set to "Same as Source". Thanks for any info.


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Shane Ross
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 8:04:34 pm

HD video is upper field...SD is lower field.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Jeff Cotten
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 8:25:06 pm

Yes - it's changing the SD video to upper field. It's not keeping it lower field for SD.


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Shane Ross
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 8:47:00 pm

Ohhhh...you are making it ProRes SD? And it is switching the field order?

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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John Pale
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 8:48:50 pm

What is your SD frame size ?

720 x 480 or 486?


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Jeff Cotten
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Jan 6, 2012 at 8:55:58 pm

It's 720 x 486. Would that make a difference even if it was 720 x 480?


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Ian Liuzzi-Fedun
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Oct 12, 2012 at 4:03:37 pm

Any answer on this?



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Jeff Cotten
Re: Why converting uncompressed SD video to ProRes flips the field dominance to upper?
on Oct 12, 2012 at 4:33:03 pm

No. I still don't know what's happening in this processs.
This is happening to you too?


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