This IS the Avid L2: RE: [Avid-L2] More XDCam nonsense with 720P 59.94 proxy vs. full rez?

Monday, September 14, 2015

RE: [Avid-L2] More XDCam nonsense with 720P 59.94 proxy vs. full rez?

So how would the proxy to full rez ever work for 720P 59.94 material? The proxies are Mpeg 4 SD 29.97and the full rez is 50Mbits XDCam at 59.94. I agree with what you are saying but I've never had to suss out the who 60 frame vs 30 frame timecode and how Avid handles it. I always assumed that Avid would just be handling the each full frame as a Psf when it got ingested into Avid and they had a scheme for talking the 60 frames and treating them like 30 time code wise where the "*" after the time code meant it was the second full frame of the 720P 59.94 frames when ingested into Avid.

Can somebody clarify how Avid handles the 60 frame time code and how given the difference between the XDCam SD Proxy and the Full Rez Media could ever relink between the two. It seems like the basic necessity to the workflow but it seems to be alluding us.

Are work around now is to legacy import the high rez media and then transcode it to DNX 220. Once that is done we can transcode the DNX 220 to an SD offline resolution and for online just relink back to the DNX 220 media. We didn't add tape names but have confirmed that the Disk Label is carried through the transcoding process.

---In Avid-L2@yahoogroups.com, <kwikpasta@...> wrote :

Surely the reason they won't relink is because one project is 29.97 progressive and the other is 59.94 progressive i.e. twice the frame rate of the other? Therefore the proxies are 29.97 media and the full res is 59.94 which will never relink? Sounds like the camera folks broke your workflow!

Andi

To: avid-l2@yahoogroups.com
From: Avid-L2@yahoogroups.com
Date: Sat, 12 Sep 2015 00:52:46 +0000
Subject: [Avid-L2] More XDCam nonsense with 720P 59.94 proxy vs. full rez?

So now we've started using XDCam on some projects which is great for the image over DVCProHD but today we got a multicamera studio shoot and they recorded at 720P/59.94. I have no idea why they choose this over 1080 59.94I.

In testing we found that to use legacy XDCam import the proxies will only legacy import in a 720 29.97P project and the full rez 50 mbits will only legacy import in a 720P/59.94 project.

After legacy importing the proxies in the 29.97P 720 project they are mpeg 4 SD30I. The full rez imported in the 59.94 720 project are 50 mbits.

I did a quick 4 shot sequence in the 720 29.97P project using the proxies. I then took the sequence into the 720P 59.94 project and modified it to the current project format. I was then unable to relink the sequence to the high rez material. I checked and unchecked all the usual relink choices and even tried the relink to selected items in open bins where I had the high rez clips in the same bin as the sequence.

This seems like such a simple thing with one disk on the same mac computer but I can't get it to relink to the high rez clips. Am I missing something obvious?

On another note I have already mentioned I don't know why they would shoot 720P to begin with. I'm still of the Old School, "Friends don't let friends edit 720P" Our current issues of basic relinking seem to legitimize this feeling but I'm sure there must be a good reason they choose this format in a studio shoot. Why doesn't anybody think to consult post first? Oh wait, 10, 9, 8,...... At this rate I'm going to have more countdowns on the L2 than Jeff S. ;-(

John Moore Barking Trout Productions Studio City, CA bigfish@...

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Posted by: bigfish@pacbell.net

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