90 lines
2.9 KiB
C++
90 lines
2.9 KiB
C++
#pragma once
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#include "../video/DeckLinkOutput.h"
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#include "../video/DeckLinkOutputThread.h"
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#include <chrono>
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#include <cstddef>
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#include <cstdint>
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namespace RenderCadenceCompositor
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{
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struct CadenceTelemetrySnapshot
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{
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double sampleSeconds = 0.0;
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double renderFps = 0.0;
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double scheduleFps = 0.0;
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std::size_t freeFrames = 0;
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std::size_t completedFrames = 0;
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std::size_t scheduledFrames = 0;
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uint64_t renderedTotal = 0;
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uint64_t scheduledTotal = 0;
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uint64_t completedPollMisses = 0;
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uint64_t scheduleFailures = 0;
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uint64_t completions = 0;
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uint64_t displayedLate = 0;
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uint64_t dropped = 0;
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bool deckLinkBufferedAvailable = false;
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uint64_t deckLinkBuffered = 0;
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double deckLinkScheduleCallMilliseconds = 0.0;
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};
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class CadenceTelemetry
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{
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public:
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template <typename SystemFrameExchange, typename OutputThread>
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CadenceTelemetrySnapshot Sample(
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const SystemFrameExchange& exchange,
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const DeckLinkOutput& output,
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const OutputThread& outputThread)
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{
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const auto now = Clock::now();
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const double seconds = mHasLastSample
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? std::chrono::duration_cast<std::chrono::duration<double>>(now - mLastSampleTime).count()
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: 0.0;
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const auto exchangeMetrics = exchange.Metrics();
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const DeckLinkOutputMetrics outputMetrics = output.Metrics();
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const auto threadMetrics = outputThread.Metrics();
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CadenceTelemetrySnapshot snapshot;
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snapshot.sampleSeconds = seconds;
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snapshot.renderedTotal = exchangeMetrics.completedFrames;
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snapshot.scheduledTotal = exchangeMetrics.scheduledFrames;
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snapshot.freeFrames = exchangeMetrics.freeCount;
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snapshot.completedFrames = exchangeMetrics.completedCount;
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snapshot.scheduledFrames = exchangeMetrics.scheduledCount;
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snapshot.completedPollMisses = threadMetrics.completedPollMisses;
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snapshot.scheduleFailures = outputMetrics.scheduleFailures > threadMetrics.scheduleFailures
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? outputMetrics.scheduleFailures
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: threadMetrics.scheduleFailures;
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snapshot.completions = outputMetrics.completions;
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snapshot.displayedLate = outputMetrics.displayedLate;
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snapshot.dropped = outputMetrics.dropped;
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snapshot.deckLinkBufferedAvailable = outputMetrics.actualBufferedFramesAvailable;
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snapshot.deckLinkBuffered = outputMetrics.actualBufferedFrames;
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snapshot.deckLinkScheduleCallMilliseconds = outputMetrics.scheduleCallMilliseconds;
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if (mHasLastSample && seconds > 0.0)
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{
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snapshot.renderFps = static_cast<double>(snapshot.renderedTotal - mLastRenderedFrames) / seconds;
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snapshot.scheduleFps = static_cast<double>(snapshot.scheduledTotal - mLastScheduledFrames) / seconds;
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}
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mLastSampleTime = now;
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mLastRenderedFrames = snapshot.renderedTotal;
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mLastScheduledFrames = snapshot.scheduledTotal;
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mHasLastSample = true;
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return snapshot;
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}
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private:
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using Clock = std::chrono::steady_clock;
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Clock::time_point mLastSampleTime = Clock::now();
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uint64_t mLastRenderedFrames = 0;
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uint64_t mLastScheduledFrames = 0;
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bool mHasLastSample = false;
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};
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}
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