If you have the DNxHD Codecs (which can be freely downloaded from the AVID website) then any QuickTime compatible application can read/write files with this codec, so yes I don't see why this shouldn't work.Originally Posted by NZ1
-Rune
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09-24-2007, 07:20 PM
If you have the DNxHD Codecs (which can be freely downloaded from the AVID website) then any QuickTime compatible application can read/write files with this codec, so yes I don't see why this shouldn't work.
-Rune
09-24-2007, 11:29 PM
As we've found out, you can't encode to DNxHD from a reference movie of any kind - at least in our experience.
09-25-2007, 03:00 AM
REDCINE will export to Quicktime with the DNxHD codec.
Lucas
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ASSIMILATE, Inc.
LA, CA, USA
09-25-2007, 12:15 PM
REDCINE can export to QUickTime. If the Avid QT codecs are installed on that system, then it can see the codec just like any QT aware application. Metadata is another issue which is being worked on.
Michael
09-25-2007, 01:59 PM
And I'm curious what is involved in solving this issue re: Avid. Do they need to add new software code in RedCine? Or does Avid have to release a new, free DNxHD codec that accommodates this? Or would it be new code in Avid Xpress/Media Composer (i.e., a new version of the NLE)? I'm no software engineer, so I have no idea. But I'm curious.
09-25-2007, 02:59 PM
This is a serious limitation that Avid has. The Quicktime import in Avid appears to have been designed to import things like graphics rendered in After Effects to be added to an online, where timecode and matching back to source are not important. You can assign timecode to clips in Avid once they are imported, but it is a time consuming manual process that has to be done one clip at a time.
Since timecode tracks are a standard part of the Quicktime spec, it would be a simple matter for Avid to implement reading them on import. I do wonder why they did not do it a long time ago, and maybe demands for Red compatibility will force them to do so. I can only think that they have their own reasons for keeping Avid a 'closed system'.
09-26-2007, 09:24 AM
I agree that timecode decode from Quicktime is a much needed feature. But there are workflows to enable metadata merge to the QT that will be part of the RED workflow and already has been in use for a while in NZ for Peter Jackson productions for all their VFX work. There is a need for more metadata than just a single timecode in order for any downstream process to be done.
As far as the ability to manage and track lots of different metadata, AVID tracks more than any other system.
Michael
09-26-2007, 09:28 AM
Having a QuickTime codec allows any QuickTime aware application to see it - you can download the Avid QT codecs from here:
http://www.avid.com/onlineSupport/su...contentID=7952
There is no need to update host applications for the QuickTime version of codecs - there is an update needed if an application wants to work natively with MXF wrapped DNxHD rather than through QuickTime. In doing that, MXF allows for a far deeper metadata description than a single timecode and other misc items.
Michael
09-28-2007, 10:26 AM
Oh dang. Now you confused me. Yes, I know I can use QT based DNxHD files in Avid. And I fully intend to use RedCine to export in that format for editing with Avid Media Composer. I'm a die-hard Avid user, and don't plan on switching.
But I was asking about the apparently all-important meta-data, in case we ever want to match-back to original Red 4K files. And the issue being Avid can't see that Red meta-data yet. And I'm wondering wherein lies the next step in Avid development to allow for this meta-data: (1) a new DNxHD codec? (probably free for download); (2) new code in RedCine that allows for this? (sounds like this isn't the issue, but heck if I know); or (3) a new revision of the Avid NLE to allow for the meta-data to be read? Which needs to be revised to allow Red to integrate the meta-data with my Avid?
I'm one of the guys who will quite happily be posting in Avid with RedCine's exported DNxHD files (I already have all the Avid QT DNxHD codecs installed). If I have to match-back these shorter projects, well I'll just do it "by eye" and good hand-written notes. In the future, however, with much longer projects and more footage, the meta-data becomes way more important, obviously.
10-08-2007, 05:44 PM
There may be a way to do this using an ALE file and QT, but I'll post more on that when I know more. I think we'll have to wait a while for metadata support, but if you want to cut an HD film and don't need to go 2k or 4k then DNxHD without metadata could be fine.
Chris
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