[Tig] Dual link question
Tue May 14 09:02:02 BST 2002
Why do you need two when you can do it on one ?
Any how answer to your question is yes. You can. There's also actually some
ways to recombine two streams (4:2:2 and 0:2:2) into a single stream.
At 23.10 13/05/2002 +0200, Sergi Maudet wrote:
>Participate in the open TIG webspace, a collaborative
>Let me ask a probably silly question:
>Would it be possible then to record a Dual link signal (SMPTE 372M) on two
>compression-free recording devices?
>Sergi Ovide Jr
>De: tig-admin at tig.alegria.com [mailto:tig-admin at tig.alegria.com]En
>nombre de Nigel Hadley
>Enviado el: lunes, 13 de mayo de 2002 11:58
>CC: Greg Dildine
>Asunto: Re: [Tig] piCASSO question -- Dual link...
>Greg Dildine wrote:
> > Can you clarify further please? I think when folks see "HD" as you write
>"...HD I/O" via Dual link HD-SDI...,"
> > they may at least think of one of the "HD 'video'" formats like those
>that can come off a Panasonic HD D5 or
> > Sony HDCam deck, albeit down a "single" HD-SDI pipe. Or at least
>when one sees "HD" one may think "real time"
> > -- i.e. the images can move about (and even be processed (cc'd)) at
>their "intended viewing frame rate."
>The Piccaso works at;
>"1920 x 1080 RGB Proposed SMPTE 372M, Dual Link 292M "
>which is another way and probably a much more accurate way of saying,
>"HD I/O via Dual link HD-SDI"
>Importantly in the original text the words RGB were missing. It should
>also be noted that the scope for the link includes the possibility to
>pass and record Log or Lin signals.
> > Do people consider Dual-link HD to be "data" or "HD 'video?'"
>In the past "Video" has tended to be YCbCr, which of course suffers from
>colour space conversion issues, when transferred to work stations.
>"Data" was comprised of RGB files transferred over a network. Using RGB
>dual-link it is possible to record in "real-time" RGB images onto the
>Piccaso where they are stored in DPX format. The DPX frame on the disks
>would be identical to a DPX frame created and transferred to the same
>device via a "data" method.
>IMHO the words "Data" and "Video" have at times come to mean and
>describe the wrong things.
>Disk Products Manager
>Snell & Wilcox Ltd.
>14 Kingfisher Court
>Newbury Berkshire RG14 5SJ
>Mbl: +44 (0) 7831 884224
>Tel. +44 (0) 1635 232600
>No marketing or advertising on the tig. (help wanted ads excepted)
>Send such submissions to rob at tig.alegria.com.
>...and beware any posts to this mailinglist that appear
> to promote products without disclaiming financial interest.
>Thank you Bill Laverty for supporting the TIG.
>copyright TIG 2002 all rights reserved.
Sebastian Sylwan sebastian at vrmmp.it
Direttore Tecnologico - Chief Technology Officer Tel. +390112271211
Virtual Reality & Multi Media Park S.p.A. http://www.vrmmp.it
More information about the Tig