AndroidJavaMediaFrameData.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#if USE_ANDROID_JNI
#include "Android/AndroidJava.h"
#include "IMediaTextureSample.h"
#include "RHI.h"
#include "RHIUtilities.h"
 
class FAndroidJavaMediaFrameData
{
public:
    FAndroidJavaMediaFrameData();
    virtual ~FAndroidJavaMediaFrameData();
 
    FAndroidJavaMediaFrameData(const FAndroidJavaMediaFrameData& Other) = delete;
    FAndroidJavaMediaFrameData& operator=(const FAndroidJavaMediaFrameData& Other) = delete;
 
    FAndroidJavaMediaFrameData& operator=(FAndroidJavaMediaFrameData& Other);
 
    operator bool() const
    {
        return (FrameDataGlobalRef != nullptr);
    }
 
    bool IsReadyToClean()
    {
        if (Fence.IsValid())
        {
            return (Fence->Poll());
        }
        return true;
    }
 
    bool Set(jobject InFrameData);
    void CleanUp();
 
    jobject Extract();
    bool ExtractToTextureVulkan(FRHICommandListImmediate& RHICmdList, FTextureRHIRef& InDstTexture, IMediaTextureSample* TextureSample);
    bool ExtractToTextureOES(FRHICommandListImmediate& RHICmdList, FTextureRHIRef& InDstTexture, IMediaTextureSample* TextureSample);
 
private:
    TRefCountPtr<FRHITexture> Texture;
    TRefCountPtr<FRHIGPUFence> Fence;
 
    jobject FrameDataGlobalRef;
 
    static jfieldID FrameData_HardwareBufferHandle;
    static jfieldID FrameData_UScale;
    static jfieldID FrameData_UOffset;
    static jfieldID FrameData_VScale;
    static jfieldID FrameData_VOffset;
    static jmethodID FrameData_ReleaseFN;
};
#endif //USE_ANDROID_JNI