HDMI V1 captures - better to use 3-2 pulldown? at DVinfo.net

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Old January 1st, 2008, 04:38 AM   #1
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Join Date: Dec 2005
Location: Natal, RN, Brasil
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HDMI V1 captures - better to use 3-2 pulldown?

This question is directed to David Newman or anyone with insight into this. I'll try to explain my question as well as possible:

When capturing the upscaled 1920 HDMI output from the V1 using HDLink and Intensity Pro, is there any advantage/disadvantage to using 3-2 pulldown on that output, as opposed to just capturing it as straight 60i?

You stated in an earlier post that 24p had the advantage of occupying 20-25% less space, and had the widest compatibility, but would there be any other differences for HDMI captures? Doing captures to a tiny, custom unit consumes CPU cycles and sometimes producing less heat might be desirable for us. I would think pulldown consumes more CPU cycles, so am trying to weigh any advantages/disadvantages.

(Other than saving ourselves the step of doing pulldown later for a 24p workflow)
"All in the view of the LION"
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Old January 1st, 2008, 10:10 AM   #2
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Join Date: Jul 2003
Location: Cardiff-by-the-Sea, California
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Pulldown actually saves cpu cycles, as there are 20% fewer frames to encode. Also progressive encoding is slightly higher quality then interlace encoding. It is win-win.
David Newman -- web: www.gopro.com
blog: cineform.blogspot.com -- twitter: twitter.com/David_Newman
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