25 Jan
2015
25 Jan
'15
8:01 p.m.
Am 25.01.2015 um 20:40 schrieb Manuel AC:
Sorry, colorspace it's certainly not it, but
something is different in
the color encoding, similar or the same as in 3D.
Or maybe is just the server who sends the image differently?
It's definitely a different color setting in the projector.
'Classic' server-side media blocks with HD-SDI connections towards the projector
use a different transmission colorspace for 3D (because Dual-Link HD-SDI can not do 48fps
in full 12Bit xyz/4:4:4). Thus for 3D, these systems use 10Bit YCbCr over HD-SDI between
Server and projector, so the projector needs a special input format for 3D.
But HFR in the strict sense of HFR-3D does not work on these systems anyway, HFR-3D
(96/120Hz playout frame rate) does not work over HD-SDI at all.
Only IMB/IMS Systems support HFR-3D, and the IMB systems does not suffer the bandwith
limitation as HD-SDI, so, 3D on IMB systems use xyz/4:4:4 as well as 2D/24fps.
But for all those formats and signals, the storage/DCP format is always yxz. And that is
what DCP-o-matic does.
You may in fact be after playing 48fps 2D, so to say, 2D-HFR. And you may have found an
48fps YCbCr format on the projector. But that is meant to be used with 'classic'
3D on HD-SDI systems. Technweise, the DCP storage format is always xyz, not matter what
frame rate or 2D/3D. The transmission format between server and mediablock/projector can
ALWAYS be different, but that is nothing DCP-o-matic has to deal with. You configure
suitable output/input formats on server and projector to deal with that.
- Carsten