Internal and external keying for Decklink cards
  

  
  
  


  
  
There are 2 types of keying supported by decklink cards : internal keying and external keying

In internal keying mode the CG software will set the Decklink card to superimpose the graphics over incoming signal
  


  
  
In external keying mode the CG software will set the Decklink card to generate video and key SDI signals and the keying will be made by an external keyer

  
The following table displays hardware which supports the keyer functionality
Device Internal External HD capable
Intersity Pro no no no
Intersity Shuttle no no no
DeckLink SDI yes no no
DeckLink Optical Fiber yes no no
DeckLink Duo yes no no
DeckLink Quad yes no no
DeckLink Studio yes yes no
UltraStudio SDI no no no
UltraStudio Express no no no
UltraStudio 3D yes yes yes
UltraStudio Pro yes yes no
DeckLink HD Extreme yes yes yes
Multibridge Pro yes yes yes
Multibridge Eclipse yes yes yes