Distributed Video - Barco TransForm A User Manual

4.2.6 Distributed video

When multiple O B
MNI US
devices corresponds to a display area on the display wall. Input cards are always limited to provide their source
just within one O B
MNI US
windows, distributed video can be used. Distributed video can be applied with S
V C or Q A
IDEO ARD UAD NALOG
In contrast to the standard display of video (a video source is fixed to a video input of an input card), with dis-
tributed video one video source is related to a video window. This window is displayed by a group of video input
cards, with one video input card located in each O
display wall, the video input card of the respective O
the display areas of several O
to the whole picture on the display wall.
Distributed video serves not only to enable unlimited upscaling, but also to have video windows that are freely
movable over all display areas. One group of distributed video may display as many video windows as video
channels are included. Nevertheless moving such a window into a display area where another window of this
group is already displayed, assigns the new video to the video input card of that display area. Therefore the
video window that has been there before appears in the background color of the window, as it is no longer pro-
vided with data.
If a group of distributed video displays several video windows all these video sources must be connected to each
of the video input cards. For that purpose a video switcher can be used for the Q
S V C with its network adapter has anyhow access to all available video streams.
TREAMING IDEO ARD
As many groups of distributed video can be configured and used at the same time as video channels (number of
all video channels of Q
UAD
O B .
MNI US
Distributed video is configured by means of the switcher definition file; please refer to section
video.
The example above shows a simplified OmniBus configuration in order to demonstrate the principles of distrib-
uted video.
Barco – TransForm A - Workstation for Windows – DOC-3266-2 – Revision 13 – April 2006
devices are used to provide graphical output for the display wall, each of these O
and therefore on one display area. To achieve anyhow freely movable and scalable video
V C .
IDEO ARD
B devices all concerned video input cards contribute »their« part of the video
MNI US
A V C , Q
NALOG IDEO ARDS
Q
A
G G G G O O O O
V
C
B . Depending on the location of the video window on the
MNI US
B provides the video data. If the window is located on
MNI US
SDI V C and S
UAD IDEO ARD
dispaly area 1 dispaly area 2
O B 1
MNI US
Q
A
G G G G O O O O
V
C
control
distributed video: full-screen video on two display areas
________________________________________________________________
V
TREAMING IDEO
A
UAD NALOG
V C ) are inserted in each
TREAMING IDEO ARD
O B 2
MNI US
4. Operating
B
MNI US
C , Q SDI
ARD UAD
V C . The
IDEO ARD
6.1.3 Configuring
Figure 4-1
4-6