Video backend

apps/LoopThroughWithOpenGLCompositing/videoio/VideoIOConfig.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <string>
+
+enum class VideoIOBackendId
+{
+	DeckLink
+};
+
+const char* VideoIOBackendName(VideoIOBackendId backendId);
+bool ParseVideoIOBackendId(const std::string& value, VideoIOBackendId& backendId);
+
+struct FrameSize
+{
+	unsigned width = 0;
+	unsigned height = 0;
+
+	bool IsEmpty() const { return width == 0 || height == 0; }
+};
+
+inline bool operator==(const FrameSize& left, const FrameSize& right)
+{
+	return left.width == right.width && left.height == right.height;
+}
+
+inline bool operator!=(const FrameSize& left, const FrameSize& right)
+{
+	return !(left == right);
+}
+
+struct VideoIOModeConfiguration
+{
+	std::string videoFormat = "1080p";
+	std::string frameRate = "59.94";
+};
+
+struct VideoIOConfiguration
+{
+	VideoIOBackendId backendId = VideoIOBackendId::DeckLink;
+	VideoIOModeConfiguration inputMode;
+	VideoIOModeConfiguration outputMode;
+	bool externalKeyingEnabled = false;
+	bool preferTenBit = true;
+};