Closes jp9000/obs-studio#867
Certain older devices (such as the Decklink Duo and Quad) could not be selected due to the fact that they rely on BMDDeckLinkTopologicalID for their unique identifier rather than BMDDeckLinkPersistentID. See http://forum.blackmagicdesign.com/viewtopic.php?f=12&t=33967 Closes jp9000/obs-studio#517
This is a cross-platform Blackmagic device capture plugin that makes use of the manufacturer provided DeckLink SDK.