input testing

apps/RenderCadenceCompositor/video/DeckLinkInput.h

@@ -0,0 +1,96 @@
+#pragma once
+
+#include "../frames/InputFrameMailbox.h"
+#include "DeckLinkAPI_h.h"
+#include "DeckLinkDisplayMode.h"
+
+#include <atlbase.h>
+
+#include <atomic>
+#include <chrono>
+#include <cstdint>
+#include <string>
+#include <vector>
+
+namespace RenderCadenceCompositor
+{
+struct DeckLinkInputConfig
+{
+	VideoFormat videoFormat;
+};
+
+struct DeckLinkInputMetrics
+{
+	uint64_t capturedFrames = 0;
+	uint64_t noInputSourceFrames = 0;
+	uint64_t unsupportedFrames = 0;
+	uint64_t submitMisses = 0;
+	double convertMilliseconds = 0.0;
+	double submitMilliseconds = 0.0;
+	const char* captureFormat = "none";
+};
+
+class DeckLinkInput;
+
+class DeckLinkInputCallback final : public IDeckLinkInputCallback
+{
+public:
+	explicit DeckLinkInputCallback(DeckLinkInput& owner);
+
+	HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, LPVOID* ppv) override;
+	ULONG STDMETHODCALLTYPE AddRef() override;
+	ULONG STDMETHODCALLTYPE Release() override;
+	HRESULT STDMETHODCALLTYPE VideoInputFrameArrived(IDeckLinkVideoInputFrame* videoFrame, IDeckLinkAudioInputPacket* audioPacket) override;
+	HRESULT STDMETHODCALLTYPE VideoInputFormatChanged(BMDVideoInputFormatChangedEvents notificationEvents, IDeckLinkDisplayMode* newDisplayMode, BMDDetectedVideoInputFormatFlags detectedSignalFlags) override;
+
+private:
+	DeckLinkInput& mOwner;
+	std::atomic<ULONG> mRefCount{ 1 };
+};
+
+class DeckLinkInput
+{
+public:
+	DeckLinkInput(InputFrameMailbox& mailbox);
+	DeckLinkInput(const DeckLinkInput&) = delete;
+	DeckLinkInput& operator=(const DeckLinkInput&) = delete;
+	~DeckLinkInput();
+
+	bool Initialize(const DeckLinkInputConfig& config, std::string& error);
+	bool Start(std::string& error);
+	void Stop();
+	void ReleaseResources();
+
+	bool IsInitialized() const { return mInput != nullptr; }
+	bool IsRunning() const { return mRunning.load(std::memory_order_acquire); }
+	DeckLinkInputMetrics Metrics() const;
+
+	void HandleFrameArrived(IDeckLinkVideoInputFrame* inputFrame);
+	void HandleFormatChanged();
+
+private:
+	bool DiscoverInput(const DeckLinkInputConfig& config, std::string& error);
+	bool SupportsInputFormat(IDeckLinkInput* input, BMDDisplayMode displayMode, BMDPixelFormat pixelFormat) const;
+	bool SubmitBgra8Frame(IDeckLinkVideoInputFrame* inputFrame, const void* bytes);
+	bool SubmitUyvy8Frame(IDeckLinkVideoInputFrame* inputFrame, const void* bytes);
+	const char* CaptureFormatName() const;
+
+	InputFrameMailbox& mMailbox;
+	DeckLinkInputConfig mConfig;
+	BMDPixelFormat mCapturePixelFormat = bmdFormat8BitBGRA;
+	CComPtr<IDeckLinkInput> mInput;
+	CComPtr<DeckLinkInputCallback> mCallback;
+	std::vector<unsigned char> mConversionBuffer;
+	std::atomic<bool> mRunning{ false };
+	std::atomic<uint64_t> mCapturedFrames{ 0 };
+	std::atomic<uint64_t> mNoInputSourceFrames{ 0 };
+	std::atomic<uint64_t> mUnsupportedFrames{ 0 };
+	std::atomic<uint64_t> mSubmitMisses{ 0 };
+	std::atomic<double> mConvertMilliseconds{ 0.0 };
+	std::atomic<double> mSubmitMilliseconds{ 0.0 };
+	std::atomic<bool> mLoggedFirstFrame{ false };
+	std::atomic<bool> mLoggedNoInputSource{ false };
+	std::atomic<bool> mLoggedUnsupportedFrame{ false };
+	std::atomic<bool> mLoggedSubmitMiss{ false };
+};
+}