Barco 26-0313000-00 manual 356

7. Operations

Working with Frame Grabs

The following table illustrates the valid layers from which to capture DSK frames, depending on the number of M/Es in your system.

Table 7-2.Where to capture frames on stacked configuration systems

Number of M/Es on	Frame Store Type	Valid Capture Layers
Bottom VP
3	DSK_FG_#	DSK, 5A, 5B, 6A, 6B
2	DSK_FG_#	DSK, 4A, 4B, 5A, 5B
1	DSK_FG_#	DSK, 3A, 3B, 4A, 4B

Encore provides complete flexibility with regard to frame grabs:

•Temporary Frame Stores — The Encore Video Processor has three temporary (temp) frame stores (FG_1, FG_2 and FG_3) which function as the three sources from which “on-air” frames originate. During operations, you can:

~Capture (grab) frames to any “temp” frame store.

~Assign any temp frame store to BG A, BG B or the DSK.

~Download a frame from “permanent” storage into any temp frame store for use on-air.

~Overwrite any temp frame store with a new capture.

Note

All frames in “temp” storage are lost when the system is powered down.

•Capture Sources — All frame grabs are full screen captures. A frame can be captured from BG A, BG B, the DSK, or any of the scaled inputs (layers).

The following important rules apply:

~If BG A, BG B, or the DSK is on Program, a frame cannot be captured. If you attempt a capture, you will get an error message.

~If BG A, BG B, or the DSK is selected on Preview (and none of those three layers are on Program), a frame can be captured.

~If you select a layer on Preview or Program, a frame can be captured

— provided that BG A, BG B, or the DSK is not on Program.

~In order to capture a frame from BG A, BG B, or the DSK, the background input "type" must be set to Analog or DVI. If it is not, you will get an error message.

Note

Because all grabs are full screen captures, when you capture a layer, you will capture the selected PIP with no borders, and with black as the background.

Once captured, a frame can be assigned as the input “type” for BG A, BG B, or the DSK — basically any “green” button in the Layer Control Section.

356 Encore Presentation System • User’s Guide • Rev 04