7800 Multiframe Manual
7825DSK2-LG(-HD)(-3G) 3G/HD/SD Dual Downstream Keyer
RCP OPERATION
Revision 2.0
Page 5-25
5.9.3.
Setting the Downstream Key Object Offset
DSK
This menu item is used to modify the key offset value used in
input
key
mode. This value is the level that will be considered as black on the key
input, and should not normally be changed from its default value of 0.
Key Offset
Offset: 0
Offset: -4096 to 4095
5.9.4.
Setting the Downstream Self Key Threshold
DSK
This menu item is used to modify the threshold value used in
Self Key
mode. The
Self Key
is a hard key based on the luminance value of the fill
signal applied to the
FILL
video input. All luminance values that are above
the
Key Threshold
will be keyed from the Fill signal. All values from the key
that fall below the
Key Threshold
will be keyed from the background video.
The default value for the
Key Threshold
is 4, which is black.
Key Threshold
Thresh.: 4
Thresh: 4 to 1020
5.9.5.
Allowing Automation to Control the Media Layer
DSK
Some automation systems do not create a distinction between the Media
layer (used for keying logos) and the Downstream Keyer layers. This
control is provided to prevent the automation from turning the Media layer
on and off at the same time as the DSK layers. Verify the functionality of
your automation system before changing this menu item.
Auto Key Enable
Ctrl media: yes
Ctrl media: no
Please note that the Auto Key Enable control is not present of the DSK 2 Layer.
5.10. TRANSITION CONFIGURATION ITEMS
The 7825DSK2-LG(-HD)(-3G) can transition between the video sources using a variety of standard
transition types. The
TRANSITION Setup
menu is used to configure the transition type, rate, pause,
and swap mode. Table 5-5 shows the items available in the
TRANSITION Setup
menu. Sections
5.10.1 to 5.10.5 provide detailed information about each of the sub-menus.
Transition Type
Selects the type of video transition
Transition Rate
Adjusts the rate of the video transition
Transition Swap
Selects whether the Program and Preview Buses will swap after the
transition
Transition Pause
Selects whether the transition can be paused
Program Bus Change
Sets the transition type of a hot cut on the program bus
Table 5-5: Top Level of the Transition Setup Menu
