Export of XDCAM HD422 @24p is not supported! Isn't it part of the spec?

[Andreas_Gumm]

I got an 24p DCP MXF master on HDD as source from customer who demands an XDCAM HD 422 master on HDD.
So I have expected that exporting to the native frame (24p) rate shouldn't be a problem XDCAM HD 422.
But it is! No export template for 24p is present.

Does anybody know something about the specific formats, frame rates & resolutions supported by "XDCAM HD 422" standard?
Does the "XDCAM HD 422" standard not support 24p?

THX in advance for answering!

[Andreas_Gumm]

24fps is not that common format. Not sure about XDCAM HD, but I would expect it to support 23.976fps, not 24fps. You have to slow down to 23.976fps.

Mmmh,
since cameras can be over-cranked it should be a supported format because 24 fps is the most common format in cinemas across the world & not uncommon in production environment.
I know XDCAM isn't indeed the common delivery format for such material but it should be possible to archive the frame rate.

On the other hand I thought that other generic MXF formats should be working with 24p! No chance! Can't export with 24p to the MXF formats: MPEG, AVC, JPEG2000!
Sometimes I have to deliver content for cinema projection. In this case 23.976 isn't ideal because the digital projection systems are most optimized for 24fps.

The best is Vdub- just assume new fps and export in Direct Stream mode. No data gets changed- just header.

I did it in EDIUS by exporting the whole clip after assembling the DCP file parts & reimporting it in a new 23,976p project (named as 23.98 in EDIUS)!

You have to than slow down audio 0.1%- but don't do any pitch correction,
as this is tiny change. Adobe audition is good for this.

Yes, important point.
What do you say to the EDIUS way? When importing the clip in a new 23.98 project and after assigning
the project frame rate to the clip the audio will also change. Is there any reason for don't doing this in EDIUS?

Yep- according to wiki- no 24p, but 23.97p is supported.

Which format will be recorded if cameras are over-cranked to 24fps?

This is only 50Mbit MPEG2 I frames- not the greatest quality.

Yes, I know but it looks good.
The format is demand from our customer. :(
IMHO much better would be a simple MXF AVC-Intra.
But it's impossible to export to any generic MXF format because it's limited to the same frame rates!

Andreas

[GrassValley_SL]

Andreas if you need it now you can export a tiff or jpeg sequence at 24p

[Andreas_Gumm]

Andreas if you need it now you can export a tiff or jpeg sequence at 24p

LOL!
My customer will hit me! ;)

[GrassValley_SL]

At least you can get sequences to the cinema. :D

[Andreas_Gumm]

At least you can get sequences to the cinema. :D

I don't know if these little independent cinemas can playback such sequences! ;)
But it's an interersting point. I will ask for!

...or I will start to stress my printer & realize a flip-book! Hehe...

[Andreas_Gumm]

For small cinema it can be done so easy- 2K playback is so easy these days- can be done form the laptop :)

Correct!
And the most common delivery format is MXF (24p in most cases)!

BTW, I remember a really small cinema which plays per VLC-player!
I'm not joking! It's because the player can be remote controlled & there are many many ways to cpntrol & tweak the playback!
I was really impressed what's possible with VLC! :D

[Andreas_Gumm]

What about the generic MXF support for 24p?
In post production environment it's really needed for exchange.

In EDIUS should be exist some more chances to exchange 24p material!

[Andreas_Gumm]

Yet again- MXF is mainly used for broadcast- no one needs 24p, so there is no proper support :)

Maybe I'm "no one" but there will be some more facilities delivering material for digital cinema projection such as advertising for local companys!

And while you say that MXF is "mainly" used for broadcast the usage of 24p is not limited & not excluded by specification!

AVID DNxHD does support 24p mode in MXF wrapper.

I'm working mainly with EDIUS & I would like to stay with it in future too! ;)

Andreas

[Andreas_Gumm]

No- it's not and there is no reason, why you can't have eg. MXF JPEG2000 at 24p. Just remember that Edius 5 had mainly broadcast formats- 6 offers freedom:) GV is focused on broadcast, so things like 24p MXF are not that important for them.

Sadly MXF JPEG2000 doesn't work at 24p export from EDIUS!
Hopefully the focus will be a little bit more extended in future! ;)
I don't think that the implementation consumes a lot of time....

I think we can request it :)

Done! ;)

Stay with Edius- AVID+file based workflow= nightmare :) AVID is no near close to Edius' performance and possibilities for tapeless production.

Yes, I know!
I don't like to work with AVID but I like whose codec package!

Cheers