如何将nvEncode输入缓冲区复制到Direct3d11纹理？

// 创建D3D11设备和纹理对象
ID3D11Device* pDevice;
ID3D11DeviceContext* pContext;
D3D11CreateDevice(nullptr, D3D_DRIVER_TYPE_HARDWARE, nullptr, 0, nullptr, 0, D3D11_SDK_VERSION, &pDevice, nullptr, &pContext);

D3D11_TEXTURE2D_DESC texDesc;
texDesc.Width = width;
texDesc.Height = height;
texDesc.MipLevels = 1;
texDesc.ArraySize = 1;
texDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
texDesc.SampleDesc.Count = 1;
texDesc.SampleDesc.Quality = 0;
texDesc.Usage = D3D11_USAGE_DEFAULT;
texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;
texDesc.CPUAccessFlags = 0;
texDesc.MiscFlags = 0;

ID3D11Texture2D* pTexture;
pDevice->CreateTexture2D(&texDesc, nullptr, &pTexture);

// 注册D3D11纹理对象为CUDA图像对象
cudaGraphicsResource* pCudaResource;
cudaGraphicsD3D11RegisterResource(&pCudaResource, pTexture, cudaGraphicsRegisterFlagsNone);

// 映射CUDA图像对象到CUDA上下文
cudaGraphicsMapResources(1, &pCudaResource);

// 获取CUDA图像对象的数组表示
cudaArray* pCudaArray;
cudaGraphicsSubResourceGetMappedArray(&pCudaArray, pCudaResource, 0, 0);

// 复制nvEncode输入缓冲区到CUDA数组
cudaMemcpy2DToArray(pCudaArray, 0, 0, pInputBuffer, inputPitch, width * 4, height, cudaMemcpyDeviceToDevice);

// 取消映射CUDA图像对象
cudaGraphicsUnmapResources(1, &pCudaResource);

// 复制D3D11纹理对象到目标纹理对象
pContext->CopyResource(pTargetTexture, pTexture);