58b108b261
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