Blackmagic Forum

Hi....

I am using DeckLink Quad2 card and Blackmagic DeckLink SDK 10.11.4.. Can somebody please tell me how can i get the Key(Alpha channel) out and the fill out from the two different channels. Tried to run the GDIKeyer example but that is suppose is for the bypass .. please help

Hi Shilpi,

By default the GdiKeyer sample outputs internal key - where the key frame is blended on the input stream on a full-duplex device. To change this sample to fill/key mode - where pair of connectors output the fill and key - please make the following change to code:

GdiKeyer.cpp|line 392:

Code: Select all

//deckLinkKeyer->Enable(false);                     // Enable internal keying
deckLinkKeyer->Enable(true);                     // Enable fill/key keying

Regards
Cameron

Hi cameron ,

Thanks it worked for me