LiveLinkFrameInterpolationProcessor.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/Object.h"
#include "UObject/ObjectMacros.h"
 
#include "LiveLinkRole.h"
#include "LiveLinkTypes.h"
#include "Templates/SubclassOf.h"
 
#include "LiveLinkFrameInterpolationProcessor.generated.h"
 
 
struct FLiveLinkInterpolationInfo
{
    float ExpectedEvaluationDistanceFromNewestSeconds;
    
    float ExpectedEvaluationDistanceFromOldestSeconds;
 
    int32 FrameIndexA = INDEX_NONE;
    int32 FrameIndexB = INDEX_NONE;
 
    bool bUnderflowDetected = false;
 
    bool bOverflowDetected = false;
};
 
 
class ILiveLinkFrameInterpolationProcessorWorker
{
public:
    virtual TSubclassOf<ULiveLinkRole> GetRole() const = 0;
 
    virtual void Interpolate(double InTime, const FLiveLinkStaticDataStruct& InStaticData, const TArray<FLiveLinkFrameDataStruct>& InSourceFrames, FLiveLinkSubjectFrameData& OutBlendedFrame, FLiveLinkInterpolationInfo& OutInterpolationInfo) = 0;
    virtual void Interpolate(const FQualifiedFrameTime& InTime, const FLiveLinkStaticDataStruct& InStaticData, const TArray<FLiveLinkFrameDataStruct>& InSourceFrames, FLiveLinkSubjectFrameData& OutBlendedFrame, FLiveLinkInterpolationInfo& OutInterpolationInfo) = 0;
};
 
 
UCLASS(Abstract, editinlinenew, ClassGroup = (LiveLink), MinimalAPI)
class ULiveLinkFrameInterpolationProcessor : public UObject
{
    GENERATED_BODY()
 
public:
    using FWorkerSharedPtr = TSharedPtr<ILiveLinkFrameInterpolationProcessorWorker, ESPMode::ThreadSafe>;
 
    virtual TSubclassOf<ULiveLinkRole> GetRole() const PURE_VIRTUAL(ULiveLinkFrameInterpolationProcessor::GetFromRole, return TSubclassOf<ULiveLinkRole>(););
    virtual FWorkerSharedPtr FetchWorker() PURE_VIRTUAL(ULiveLinkFrameInterpolationProcessor::FetchWorker, return FWorkerSharedPtr(););
};