Issue #83: VLC video source get_frame for BGRA frames throws exception now to clearly indicate it doesn't support BGRA
Issue #83: VLC video source get_frame for BGRA frames throws exception now to clearly indicate it doesn't support BGRA

gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab,gift-surg/GIFT-Grab