telemetry and timing updates

apps/RenderCadenceCompositor/RenderCadenceCompositor.cpp

@@ -20,6 +20,10 @@
 
 namespace
 {
+constexpr std::size_t kDeckLinkTargetBufferedFrames = 4;
+constexpr std::size_t kReadbackDepth = 6;
+constexpr std::size_t kWritableOutputReserveFrames = kReadbackDepth + 2;
+
 class ComInitGuard
 {
 public:
@@ -95,7 +99,11 @@ int main(int argc, char** argv)
 		frameExchangeConfig.height);
 	frameExchangeConfig.pixelFormat = VideoIOPixelFormat::Bgra8;
 	frameExchangeConfig.rowBytes = VideoIORowBytes(frameExchangeConfig.pixelFormat, frameExchangeConfig.width);
-	frameExchangeConfig.capacity = 12;
+	frameExchangeConfig.capacity =
+		appConfig.warmupCompletedFrames +
+		kDeckLinkTargetBufferedFrames +
+		kWritableOutputReserveFrames;
+	frameExchangeConfig.maxCompletedFrames = appConfig.warmupCompletedFrames;
 
 	SystemFrameExchange frameExchange(frameExchangeConfig);
 
@@ -128,6 +136,10 @@ int main(int argc, char** argv)
 			"Unsupported DeckLink outputVideoFormat/outputFrameRate in config/runtime-host.json; render cadence will use parsed frame-rate fallback: " +
 				appConfig.outputVideoFormat + " / " + appConfig.outputFrameRate);
 	}
+	else
+	{
+		appConfig.deckLink.outputVideoMode = outputVideoMode;
+	}
 
 	RenderCadenceCompositor::DeckLinkInput deckLinkInput(inputMailbox);
 	RenderCadenceCompositor::DeckLinkInputThread deckLinkInputThread(deckLinkInput);
@@ -186,7 +198,7 @@ int main(int argc, char** argv)
 	renderConfig.frameDurationMilliseconds = outputVideoModeResolved
 		? RenderCadenceCompositor::FrameDurationMillisecondsFromDisplayMode(outputVideoMode.displayMode, fallbackFrameDurationMilliseconds)
 		: fallbackFrameDurationMilliseconds;
-	renderConfig.pboDepth = 6;
+	renderConfig.pboDepth = kReadbackDepth;
 
 	RenderThread renderThread(frameExchange, &inputMailbox, renderConfig);