Wednesday, April 17, 2013

[Avid-L2] Re: DVCPro HD (720P/60), 23.98 ama link 2,2,2,4 Pulldown Transcode 2,2,2,2,2?

 

Well in 1080i the transcodes generate 2:3 pulldown like I would expect. So what methodology is Avid using when I did the transcodes in 1080P/29.97? Is it a fluid motion algorithm? If so does it lead to some of the potential artifacts that fluid motion can generate? Just how is Avid making 5 seemingly unique psf frames from the original 24 frames of the ama clip? Hmmmmm.

--- In Avid-L2@yahoogroups.com, John Moore <bigfish@...> wrote:
>
> So in my P2 extravaganza tonight I see something that I think I only partially understand.  When I look at ama linked DVCPro HD (720P/60) 23.98 clips and set my project to 1080i/59.94 I see a cadence of 2,2,2,4 but when I look at the transcoded clips that are
>
> p, li { white-space: pre-wrap; }
>
> DNxHD 220 (HD1080p) and step field by field I see a 2,2,2,2,2 cadence not 2:3. Is this some magic happening in the transcode because all 5 psf frames are unique. Could I be getting fooled by the fact that I did the transcodes while having the project set to 1080P/29.97. It's late but I don't see any split frames as I step through field by field. I'm going to redo the transcode while in 1080i/59.94 mode and see what happens then.
>
> John Moore
>
> Barking Trout Productions
>
> Studio City, CA
>
> bigfish@...
>
> [Non-text portions of this message have been removed]
>

__._,_.___
Reply via web post Reply to sender Reply to group Start a New Topic Messages in this topic (2)
Recent Activity:
Search the official Complete Avid-L archives at:   http://archives.bengrosser.com/avid/
.

__,_._,___

No comments:

Post a Comment