Thursday, February 4, 2010

Re: [Avid-L2] DNxHD QuckTime FCP Import Question

On Feb 3, 2010, at 7:58 PM, blafarm wrote:

> Is it possible to export an uncompressed QuickTime movie from Avid --
and import it into FCP without an intermediate stage? Does FCP
recognize Avid's DNxHD QuickTime codec?

I offer:

If it's uncompressed, it's not DNxHD. DNxHD is a compression CODEC.
Uncompressed is, well, uncompressed. But to answer your question, I'd
say, yes, you can output an uncompressed QT Movie that will import into
FCP. Of course, if it's uncompressed, you'd need drives and system
throughput to support the data rate of uncompressed video. And if
you're talking about HD uncompressed video, that data rate is very high
indeed.
As far as DNxHD is concerned, you CAN import Avid DNxHD QT Movies.
You need the Avid CODEC package installed on your Mac. HOWEVER, you
still cannot EDIT in FCP with the Avid DNxHD CODEC. Once you import
the Avid QT Movie, you'll need to convert it to a CODEC that FCP will
work with. I'd suggest ProRes422 or ProRes422(HQ). I've done this and
it works well; it just takes more time. Here's my procedure: Open the
drive that contains the Avid QT and Drag & Drop the Movie(s) into a
bin in FCP. They will be highlighted in the bin. Pull down the File
Menu to select "Media Manager" to open the MM window. Select
"Recompress", choose a ProRes CODEC, and set your destination drive,
then click OK. Wait until the process has finished.
Once the recompression has completed, select the bin where the Avid
QT's are highlighted and delete them (they are the original QT's; you
can't use them). Of course this does not delete the actual QT's from
your drive; it only deletes them from the bin.
Find the NEW recompressed QT's on your destination drive and drag them
to a bin, or use IMPORT to find them and place them in a bin. You may
now edit like crazy.
One final note: Avid does not carry over timeline or clip timecode
when exporting to Quicktime Movies. If that's important, you must note
the starting TC of each timeline and clip when you do the Avid export,
then Modify the new ProRes clip in FCP to put the correct TC into it.

Dennis Degan, Video Editor-Consultant-Knowledge Bank
NBC Today Show, New York

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