Video format refactor

apps/LoopThroughWithOpenGLCompositing/decklink/DeckLinkDisplayMode.cpp

@@ -14,6 +14,17 @@ std::string NormalizeModeToken(const std::string& value)
 }
 
 bool ResolveConfiguredDisplayMode(const std::string& videoFormat, const std::string& frameRate, BMDDisplayMode& displayMode, std::string& displayModeName)
+{
+	VideoFormat videoMode;
+	if (!ResolveConfiguredVideoFormat(videoFormat, frameRate, videoMode))
+		return false;
+
+	displayMode = videoMode.displayMode;
+	displayModeName = videoMode.displayName;
+	return true;
+}
+
+bool ResolveConfiguredVideoFormat(const std::string& videoFormat, const std::string& frameRate, VideoFormat& videoMode)
 {
 	const std::string formatToken = NormalizeModeToken(videoFormat);
 	const std::string frameToken = NormalizeModeToken(frameRate);
@@ -78,8 +89,8 @@ bool ResolveConfiguredDisplayMode(const std::string& videoFormat, const std::str
 	{
 		if (combinedToken == option.token || (frameToken.empty() && formatToken == option.token))
 		{
-			displayMode = option.mode;
-			displayModeName = option.displayName;
+			videoMode.displayMode = option.mode;
+			videoMode.displayName = option.displayName;
 			return true;
 		}
 	}
@@ -87,6 +98,31 @@ bool ResolveConfiguredDisplayMode(const std::string& videoFormat, const std::str
 	return false;
 }
 
+bool ResolveConfiguredVideoFormats(
+	const std::string& inputVideoFormat,
+	const std::string& inputFrameRate,
+	const std::string& outputVideoFormat,
+	const std::string& outputFrameRate,
+	VideoFormatSelection& videoModes,
+	std::string& error)
+{
+	if (!ResolveConfiguredVideoFormat(inputVideoFormat, inputFrameRate, videoModes.input))
+	{
+		error = "Unsupported DeckLink inputVideoFormat/inputFrameRate in config/runtime-host.json: " +
+			inputVideoFormat + " / " + inputFrameRate;
+		return false;
+	}
+
+	if (!ResolveConfiguredVideoFormat(outputVideoFormat, outputFrameRate, videoModes.output))
+	{
+		error = "Unsupported DeckLink outputVideoFormat/outputFrameRate in config/runtime-host.json: " +
+			outputVideoFormat + " / " + outputFrameRate;
+		return false;
+	}
+
+	return true;
+}
+
 bool FindDeckLinkDisplayMode(IDeckLinkDisplayModeIterator* iterator, BMDDisplayMode targetMode, IDeckLinkDisplayMode** foundMode)
 {
 	if (!iterator || !foundMode)