struct SharedTexture {
    ID3D11Texture2D *pUnityTex{};
    IDXGIKeyedMutex *pUnityMutex{};
    ID3D11Texture2D *pFFmpegTex{};
    IDXGIKeyedMutex *pFFmpegMutex{};
};

struct SharedTextureHolder {
    SharedTexture renderingTex;
    std::vector<SharedTexture> bufferTextures;
};