reorganization

src/video/playout/VideoPlayoutScheduler.h

@@ -0,0 +1,36 @@
+#pragma once
+
+#include "VideoIOTypes.h"
+#include "VideoPlayoutPolicy.h"
+
+#include <cstdint>
+
+class VideoPlayoutScheduler
+{
+public:
+	void Configure(int64_t frameDuration, int64_t timeScale);
+	void Configure(int64_t frameDuration, int64_t timeScale, const VideoPlayoutPolicy& policy);
+	void Reset();
+	VideoIOScheduleTime NextScheduleTime();
+	void AlignNextScheduleTimeToPlayback(int64_t streamTime, uint64_t leadFrames);
+	VideoPlayoutRecoveryDecision AccountForCompletionResult(VideoIOCompletionResult result, uint64_t readyQueueDepth = 0);
+	double FrameBudgetMilliseconds() const;
+	uint64_t ScheduledFrameIndex() const { return mScheduledFrameIndex; }
+	uint64_t CompletedFrameIndex() const { return mCompletedFrameIndex; }
+	int64_t FrameDuration() const { return mFrameDuration; }
+	uint64_t LateStreak() const { return mLateStreak; }
+	uint64_t DropStreak() const { return mDropStreak; }
+	int64_t TimeScale() const { return mTimeScale; }
+	const VideoPlayoutPolicy& Policy() const { return mPolicy; }
+
+private:
+	uint64_t MeasureLag(VideoIOCompletionResult result, uint64_t readyQueueDepth) const;
+
+	int64_t mFrameDuration = 0;
+	int64_t mTimeScale = 0;
+	uint64_t mScheduledFrameIndex = 0;
+	uint64_t mCompletedFrameIndex = 0;
+	uint64_t mLateStreak = 0;
+	uint64_t mDropStreak = 0;
+	VideoPlayoutPolicy mPolicy;
+};