Grass Valley 8985FS v.1.3.2 - Manual (Page 26)

26 8985FSP/FS — Instruction Manual
Configuration
Split Screen Control
A Split Screen function can be enabled for comparing the unprocessed
input to the processed output. This function is very useful when using the
color correction or video processor controls. The Split Screen orientation
can be set vertically or horizontally and can be adjusted for the amount of
video to be displayed (10-90%). Interactive Split Screen controls are present
on the 8995FSP System Config, Video Processing, and Color Correction
web pages.
Video Timing and Loss of Signal Controls
On a 8985FSP/FS module with Frame Sync, the following timing adjust-
ments are available:
• Horizontal Timing – adjusts the horizontal delay of the channel output
in pixels
• Vertical Timing – adjusts vertical delay in line increments
Also available on the 8985FSP with Frame Sync are the following controls
for setting the output condition when there is a loss of input signal:
• Auto Blue – when Auto Blue is enabled on a channel, the output will
automatically freeze to a blue screen when the input signal is lost on the
input.
• Auto Freeze – when Auto Freeze is enabled on a channel, the output
will automatically freeze on the last valid field when the input signal is
lost on the input.
• A Manual freeze can be performed at any time with the following two
choices:
• Frame
• Field
Note A field freeze provides less resolution and no motion artifacts in the output.
In frame mode, the resolution is higher since both fields are present, but the
presentation of the two fields can cause motion artifacts.
• Multi-frame Delay – up to 6 frames of delay can be added to the signal
as needed. When the H and V Timing controls are set to maximum, the
total delay of the module can be 8 frames (when
Minimum Delay is not
selected)
• Minimum Delay Mode – the module can be set for minimum delay
mode that bypasses portions of the frame sync memory to allow an
absolute minimum amount of delay through the module. This mode is
for special cases where the input is synchronous and its position with
respect to the reference is well known.