SDI Input

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The following cards are supported:

Blackmagic Decklink (Includes Multibridge)

This is a cheap but decent range of SDI cards. It may be possible to directly use the kernel driver API to get access to some of the missing features but this is a very large amount of work. Support team are helpful however.

These cards are used heavily in OBE deployments.


  • Low cost
  • 4K on most recent card


  • Lack of access to partial SDI frames - always returns a full frame.
  • Lack of access to full AES frames - S302M passthrough will not include user data
  • Older cards will skip VBI lines - Line 22 on PAL streams on a DeckLink HD Extreme 2 has been confirmed by Blackmagic Support.
  • Closed source drivers.

Cards not supported:


  • Serious lipsync problem and problem with switching


  • Licence incompatibility with drivers.