MediaClock.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Containers/Array.h"
#include "Misc/Timespan.h"
#include "Templates/SharedPointer.h"
 
#include "IMediaClock.h"
 
class IMediaClockSink;
 
 
class FMediaClock
    : public IMediaClock
{
public:
 
    FMediaClock();
 
public:
 
    void TickInput();
 
    void TickOutput();
 
    void TickRender();
 
    void TickFetch();
 
    void UpdateTimecode(const FTimespan NewTimecode, bool NewTimecodeLocked);
 
public:
 
    //~ IMediaClock interface
 
    virtual void AddSink(const TSharedRef<IMediaClockSink, ESPMode::ThreadSafe>& Sink) override;
    virtual FTimespan GetTimecode() const override;
    virtual bool IsTimecodeLocked() const override;
    virtual void RemoveSink(const TSharedRef<IMediaClockSink, ESPMode::ThreadSafe>& Sink) override;
 
private:
 
    FTimespan DeltaTime;
 
    bool Locked;
 
    TArray<TWeakPtr<IMediaClockSink, ESPMode::ThreadSafe>> Sinks;
 
    TArray<TWeakPtr<IMediaClockSink, ESPMode::ThreadSafe>> SinksToAdd;
 
    TArray<TWeakPtr<IMediaClockSink, ESPMode::ThreadSafe>> SinksToRemove;
 
    mutable FCriticalSection SinkCriticalSection;
 
    FTimespan Timecode;
 
    bool TimecodeLocked;
 
    void UpdateSinkArray();
    
};