Barco TransForm A, User Manual

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4. Operating
Barco – TransForm A - Workstation for Windows – DOC-3266-2 – Revision 16 – August 2007
_____________________________________________________________
4-2
4.1 Input cards
For showing information from external sources like video or RGB data on a Barco display wall a set of input cards
is provided. For integration of video the Q
UAD
A
NALOG
V
IDEO
C
ARD
, the Q
UAD
SDI V
IDEO
C
ARD
, the S
TREAMING
V
IDEO
C
ARD
and the D
UAL
DVI I
NPUT
C
ARD
are available and RGB data can be shown with the D
UAL
RGB I
NPUT
C
ARD
or the D
UAL
DVI
I
NPUT
C
ARD
. Multiple input cards can be inserted into an O
MNI
B
US
or into the devices of a Processor configuration.
A software application video.exe is provided with T
RANS
F
ORM
A for controlling all these cards. Even though each
type of input card has its own tailored dialog for the different video and RGB signals, in all cases the window to
display a signal will be called video window. The video windows can be scaled and moved within the projection
cubes connected to that O
MNI
B
US
(OmniBus configuration) or to the whole system (Processor configuration).
In general downscaling of the data is performed by the input card, upscaling is performed by the O
MNI
S
CALER
unless otherwise mentioned.
4.1.1 Quad Analog Video Card
Four composite video sources can be connected to a Q
UAD
A
NALOG
V
IDEO
C
ARD
and displayed simultaneously. Q
UAD
A
NALOG
V
IDEO
C
ARDS
can also be used to realize distributed video (a video window that is displayed on the display
area of two or more O
MNI
B
US
devices), see section 4.2.6 Distributed video .
4.1.2 Streaming Video Card SVC-1
The S
TREAMING
V
IDEO
C
ARD
SVC-1 is able to decode and simultaneously display the following formats and amount of
video streams:
MPEG-1 up to 4 streams (all resolutions)
MPEG-2 up to 4 D1 streams or 4 CIF streams
MPEG-4 part 2 up to 4 CIF streams or 3 2CIF streams or 1-2 4CIF streams (if content is highly dynamic e.g.
action movies, it is recommended to decode 1 4CIF stream per board)
MPEG-4 h263 up to 4 CIF streams or 4 2CIF streams or 4 4CIF streams
MJPEG up to 4 CIF streams or 2-4 4CIF streams (AXIS: 4 CIF streams 75% quality/25% compression)
MxPEG up to 4 CIF streams or 2 1280x576 streams
Visiowave 1-3 D1 streams or up to 4 CIF streams (depends on resolution)
T
RANS
F
ORM
SCN 1 stream
All streams decoded by one card must have been encoded with the same compression algorithm.
S
TREAMING
V
IDEO
C
ARD
SVC-1 can also be used to realize distributed video, see section 4.2.6 Distributed video .
4.1.3 Streaming Video Card SVC-2
The S
TREAMING
V
IDEO
C
ARD
SVC-2 is able to decode and simultaneously display the following formats and amount of
video streams:
MPEG-2 up to 15 Mbps per stream
MPEG-4 part 2 up to 8 Mbps per stream
Visiowave up to four streams
For each stream the S
TREAMING
V
IDEO
C
ARD
SVC-2 provides a dedicated DSP. Therefore any combination of the
above mentioned compression algorithms can be decoded by one card simultaneously.
S
TREAMING
V
IDEO
C
ARD
SVC-2 can also be used to realize distributed video, see section 4.2.6 Distributed video .