X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=nageru%2Fdecklink_util.cpp;h=c2ebd575b073cb1743d6a2cc3c1ea418c415d126;hb=8bf76def09e0747734c33a21a8f94b3f462305c7;hp=33a7933a033e26c08d91d59e1f4919a0717d55b6;hpb=9ffd4f03f314cc6e0254449593def95c9bc203d6;p=nageru

diff --git a/nageru/decklink_util.cpp b/nageru/decklink_util.cpp
index 33a7933..c2ebd57 100644
--- a/nageru/decklink_util.cpp
+++ b/nageru/decklink_util.cpp
@@ -90,3 +90,22 @@ BMDVideoConnection pick_default_video_connection(IDeckLink *card, BMDDeckLinkAtt
 		return connection_mask & (-connection_mask);
 	}
 }
+
+bool decklink_card_is_active(IDeckLink *card, unsigned card_index)
+{
+	IDeckLinkStatus *status;
+	if (card->QueryInterface(IID_IDeckLinkStatus, (void**)&status) != S_OK) {
+		fprintf(stderr, "Card %u has no status interface\n", card_index);
+		abort();
+	}
+
+	int64_t duplex_mode;
+	if (status->GetInt(bmdDeckLinkStatusDuplexMode, &duplex_mode) != S_OK) {
+		fprintf(stderr, "Could not query duplex mode for card %u\n", card_index);
+		abort();
+	}
+
+	status->Release();
+
+	return (duplex_mode != bmdDuplexStatusInactive);
+}