NVIDIA Corporation
14
Quadro FX 4800/5800 and Quadro CX SDI User’s Guide
– Version 1.0
C
HAPTER
2
NVIDIA Graphics-to-SDI
Changing Video Formats
When
changing
any
of
the
SDI
settings,
visual
disturbances
might
occur
as
the
video
resets
to
the
new
settings.
To
prevent
such
disturbances
from
being
visible
to
the
public
or
from
being
recorded,
observe
the
following
sequence
when
making
changes
to
any
SDI
setting:
1
Stop
the
live
broadcast
(go
off
air)
2
Change
video
format
or
SDI
settings
3
Verify
video
quality
4
Resume
the
live
broadcast
When Using the Control Panel
NVIDIA
recommends
the
following
• Set
the
desktop
to
the
same
or
higher
resolution
than
the
SDI
output
for
better
image
quality.
• Close
all
background
applications—such
as
virus
scan,
backup,
and
archiving
applications—before
starting
the
SDI
output
and
going
on
air.
• Close
the
Display
Properties
panel
before
going
on
air.
• When
running
multiple
OpenGL
applications,
tearing
may
occur
if
the
applications
are
not
synchronized.
In
general,
NVIDIA
does
not
recommend
running
multiple
OpenGL
applications
when
starting
the
SDI
output
or
when
going
live.
Running Multiple OpenGL Applications
To
maximize
the
system
resources
and
bandwidth
available
for
converting
graphics
to
SDI
output,
NVIDIA
recommends
broadcasting
only
one
OpenGL
application
at
a
time.
