it works! kinda

Author: linnealovespie

Samples/StyleTransfer/VideoEffect/StyleTransferEffectCpp/StyleTransferEffect.cpp

@@ -67,10 +67,9 @@ namespace winrt::StyleTransferEffectCpp::implementation
 
 			// bind the input and the output buffers by name
 			bindings[swapchaindex].binding.Bind(InputImageDescription, input);
-			bindings[swapchaindex].binding.Bind(OutputImageDescription, outputTransformed);
 			// submit an eval and wait for it to finish submitting work
-			std::lock_guard<mutex> guard{ Processing };
-			bindings[swapchaindex].activetask = Session.EvaluateAsync(bindings[swapchaindex].binding, L"0");
+			std::lock_guard<mutex> guard{ Processing }; // Is this still happening inside of Complete? 
+			bindings[swapchaindex].activetask = Session.EvaluateAsync(bindings[swapchaindex].binding, ss.str().c_str());
 			bindings[swapchaindex].activetask.Completed([&](auto&& asyncInfo, winrt::Windows::Foundation::AsyncStatus const args) {
 				OutputDebugString(L"PF Eval completed | ");
 				//OutputDebugString(ss.str().c_str());
@@ -153,7 +152,9 @@ namespace winrt::StyleTransferEffectCpp::implementation
 
 		// Create set of bindings to cycle through
 		for (int i = 0; i < swapChainEntryCount; i++) {
-			bindings[swapChainIndex].binding = LearningModelBinding{ Session };
+			bindings[i].binding = LearningModelBinding(Session);
+			bindings[i].binding.Bind(OutputImageDescription, VideoFrame(Windows::Graphics::Imaging::BitmapPixelFormat::Bgra8, 720, 720));
+
 		}
 	}
 }

Samples/StyleTransfer/VideoEffect/StyleTransferEffectCpp/StyleTransferEffect.h

@@ -14,7 +14,11 @@ namespace winrt::StyleTransferEffectCpp::implementation
 	struct SwapChainEntry {
 		LearningModelBinding binding;
 		Windows::Foundation::IAsyncOperation<LearningModelEvaluationResult> activetask;
-		SwapChainEntry() : binding(nullptr), activetask(nullptr) {}
+		VideoFrame transformOutput;
+		SwapChainEntry() :
+			binding(nullptr),
+			activetask(nullptr),
+			transformOutput(Windows::Graphics::Imaging::BitmapPixelFormat::Bgra8, 720, 720) {}
 	};
 
 	struct StyleTransferEffect : StyleTransferEffectT<StyleTransferEffect>
@@ -40,6 +44,8 @@ namespace winrt::StyleTransferEffectCpp::implementation
 
 		VideoEncodingProperties encodingProperties;
 		std::mutex Processing;
+		std::mutex Copy;
+
 		StyleTransferEffectNotifier Notifier;
 		std::chrono::time_point<std::chrono::steady_clock> m_StartTime;
 		bool firstProcessFrameCall = true;
@@ -50,7 +56,7 @@ namespace winrt::StyleTransferEffectCpp::implementation
 		hstring InputImageDescription;
 		hstring OutputImageDescription;
 		int swapChainIndex = 0;
-		static const int swapChainEntryCount = 1;
+		static const int swapChainEntryCount = 10;
 		SwapChainEntry bindings[swapChainEntryCount];
 
 		void EvaluateComplete(VideoFrame);