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

Had issues with this last year.

Noted that doing the AMA link/transcode in a 23.98 project, then moving the
bins into the 1080i 29.97 project achieved noticeably better looking
results. The motion adapter applied in the 29.97 project handled the
pulldown differently (and better!). Better still, it's not baked in...you
can adjust it by promoting to Timewarp if it gets the cadence wrong.

I think transcoding while converting frame rate is using Advanced Pulldown,
which is really not so nice.





On Wednesday, April 17, 2013, johnrobmoore wrote:

> **
>
>
> 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 <javascript:_e({}, 'cvml',
> 'Avid-L2%40yahoogroups.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]
> >
>
>
>


[Non-text portions of this message have been removed]



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