Use the Unity Blackmagic package (com.unity.media.blackmagic) to support video capture cards from Blackmagic Design to input and output pro-grade video and audio in the Unity Editor and runtime builds ...

At c3voc we use Linux PCs with Blackmagicdesign DeckLink cards to capture video and audio. Often, during buildup of complex rooms like we have on 34C3 with multiple cameras, scalers, audio embedders ...