IMediaCache.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Math/Range.h"
#include "Math/RangeSet.h"
#include "Misc/Timespan.h"
 
 
enum class EMediaCacheState
{
    Cached,
 
    Loaded,
 
    Loading,
 
    Pending,
};
 
 
class IMediaCache
{
public:
 
    virtual bool QueryCacheState(EMediaCacheState State, TRangeSet<FTimespan>& OutTimeRanges) const
    {
        return false; // override in child classes, if supported
    }
    
    virtual int32 GetSampleCount(EMediaCacheState State) const
    {
        return 0; // override in child classes, if supported
    }
 
public:
 
    virtual ~IMediaCache() { }
};