Problems with DNXHR Export from Resolve 14 beta 1-4

Hello

I found out, that exporting a file from resolve 14 as a DNXHR-DQX-10bit results in a DNXHD File.

Reimporting that exported file shows that clearly, importing the exported file into Avid prooves it too.

That´s also true for all other DNXHR Formats except DNXHR-444-12bit.

Any ideas or workarounds?

After reiinstalling Resolve 12.5.5 it works again (in 12.5.5). Newest AViD LE Codecs are installed.

Thanks Holger

Sorry I meant DNXHR-HQX

[Dmitry Kitsov BMD]

Hello, Holger,
if you are exporting in HD resolution this is an expected behavior. This is not expected for resolutions above HD.

There was a bug- if it's still there then not fixed. It has nothing to do what you install as Resolve uses own libraries for DNxHD/R.
Installed codecs are for software which don't have native support, like QT 7 player etc.

Hello, Holger,
if you are exporting in HD resolution this is an expected behavior. This is not expected for resolutions above HD.

Why is it expected?
DNxHD has a separate list in the exporter, so when I want DNxHD I choose DNxHD option.
If I chosen DNxHR export option I except file to be DNxHR. Why would I suddenly get DNxHD (only because export is HD). Makes no sense at all.

I second Andrew´s opinion.

At least it worked in 12.5.5 correctly. Why change it in 14?

Thanks

DNXHR is absolutely meant not only for 4k but also for HD according to the Avid specs:
http://avid.force.com/pkb/articles/en_U ... ifications

It meant for every resolution and DNxHD is sort of obsolete now.

Dmitry,
could you please let me know if it will stay like this in resolve 14, or is there a chance that we get the same DNXHR exporting behaviour like in 12.55 back?

Thanks

[Rohit Gupta]

This is expected behaviour and the DNxHR specification requires this. It's to remain backward compatible in bitstream with DNxHD decoders.

Resolve is the only software which does it this way (as far as I can tell), so looks like ALL other companies simply ignore (I assume) Avid's spec. The thing is that DNxHR is not 100% the same as DNxHD and also has 12bit mode which DNxHD doesn't.
What if I want 12bit high quality DNxHR file at HD res? Why would I be "blocked" of exporting such a file?
What about 1280x720 and other resolutions which DNxHD supports? Is this also going to be exported as DNxHD?
There should be warning about it, otherwise people are going to post this every few days.

[Rohit Gupta]

Resolve is the only software which does it this way (as far as I can tell), so looks like ALL other companies simply ignore (I assume) Avid's spec. The thing is that DNxHR is not 100% the same as DNxHD and also has 12bit mode which DNxHD doesn't.
What if I want 12bit high quality DNxHR file at HD res? Why would I be "blocked" of exporting such a file?
What about 1280x720 and other resolutions which DNxHD supports? Is this also going to be exported as DNxHD?
There should be warning about it, otherwise people are going to post this every few days.

12-bit should work fine. You are not blocked. Not on a system right now but this should work.

Please compare against the latest Avid software release as well.

Is it part of licensing restrictions?
If not I don't see a reason for such an "automated" adjustment. DNxHD presets are there so if someone wants a DNxHD file (for compatibility or not) then they have all needed options.

If DNxHD exporter would be removed, then there could be tick box (eg. AVID compatibility) for DNxHR exporter for some resolution to switch to DNxHD. Currently it's very confusing implementation.

DNxHR 12bit HD does work fine.

Other standard resolutions, e.g. 1280x720 also switch to DNxHD.

It's probably covered here but it is technically the same thing. In a way Resolve choosing to override your HR setting for HD when you are choosing an HD output in many ways is much smarter than just saying OK I'll do that. If you are outputting HD anyway, then you are going to be more compatible to have Resolve use DNxHD rather than HR as it's been supported by Avid for longer.

They are not exactly the same ( otherwise there would be no need for such an auto change at all).
DNxHD export options are all still there, so when I'll need DNxHD I will choose it from the export list.
Use of DNxHR doesn't always mean Avid is going be involved. Most often it has nothing to do with Avid.
Current behaviour is like "trying to hard"+ there is no warning or manual cover (or maybe it's covered in manual). I understand why Avid has implemented it this way, but not that sure if Resolve has to follow it.
At least 12bit variant stays at DNxHR.

I find this discussion rather confusing. Even Media Composer will generate DNxHR media in an HD project when you transcode the media and select the option to maintain the source media frame rate (in a mixed frame rate project) so there is nothing that prevents the use of DNxHR for HD.

Use of DNxHR doesn't always mean Avid is going be involved. Most often it has nothing to do with Avid.

I have to agree, as I regularly export DNxHR from DR. I then transcode to h.264 for delivery using ffmpeg, as it offers greater control over the final product.

I find this discussion rather confusing. Even Media Composer will generate DNxHR media in an HD project when you transcode the media and select the option to maintain the source media frame rate (in a mixed frame rate project) so there is nothing that prevents the use of DNxHR for HD.

Probably this is changed in latest version, where DNxHR switches silently to DNxHD mode if video is a standard frame size at HD or below.
If not BM is just trying to hard.

What I mean is that Media Composer forces the use of DNxHR in the case I mentioned even with HD media so the idea that BMD has to switch to DNxHD when the output is HD is odd.

Is that in latest MC version?
BM says this is latest AVID practice, so the follow it.

I can't speak for BMD and their interpretation of Avid guidelines but with MC 8.8 if you transcode a clip and opt to keep the source framerate rather than converting to the project framerate, MC forces you to transcode your HD media to DNxHR (you can't even select a DNxHD flavor).

I'm not in front of Media Composer - I suppose it's possible that Avid changed things up for 8.8.4 but I doubt it. I will report back the next opportunity I get to test this.

You have to actually check footage with mediainfo etc. Exporter will say DNxHR, but exported file may be DNxHD.