Support DeckLink cards that don't have an HDMI connector.

[nageru] / decklink_output.cpp

diff --git a/decklink_output.cpp b/decklink_output.cpp
index 46d9b140cb9214e5940e78c5a4656770769a8c00..7fa689e547610c0fb14696349a87f3e445e42422 100644 (file)
--- a/decklink_output.cpp
+++ b/decklink_output.cpp
@@ -52,6 +52,12 @@ void DeckLinkOutput::set_device(IDeckLink *decklink)
        }
 
        mode_it->Release();
+
+       // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards
+       // that support both; pick_default_video_connection() will generally pick one of those
+       // if they exist. We're not very likely to need analog outputs, so we don't need a way
+       // to change beyond that.
+       video_connection = pick_default_video_connection(decklink, BMDDeckLinkVideoOutputConnections, card_index);
 }
 
 void DeckLinkOutput::start_output(uint32_t mode, int64_t base_pts)
@@ -71,9 +77,7 @@ void DeckLinkOutput::start_output(uint32_t mode, int64_t base_pts)
                fprintf(stderr, "Failed to set low latency output\n");
                exit(1);
        }
-       // HDMI or SDI generally mean “both HDMI and SDI at the same time” on DeckLink cards.
-       // We're not very likely to need analog outputs.
-       if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, bmdVideoConnectionHDMI) != S_OK) {
+       if (config->SetInt(bmdDeckLinkConfigVideoOutputConnection, video_connection) != S_OK) {
                fprintf(stderr, "Failed to set video output connection for card %u\n", card_index);
                exit(1);
        }