/// <summary>
/// Retrieves the compressed stream from the encoder state that was previously used in one of the encoder functions.
/// </summary>
/// <param name="ptr">Pointer to the buffer in the device memory where the compressed stream will be stored. Can be NULL</param>
/// <param name="stream">CUDA stream where all the required device operations will be placed.</param>
/// <returns>On return the NVJPEG library will give the actual compressed stream size in this value.</returns>
public SizeT RetrieveBitstream(CudaDeviceVariable <byte> ptr, CudaStream stream)
{
SizeT length = ptr.SizeInBytes;
res = NvJpegNativeMethods.nvjpegEncodeRetrieveBitstreamDevice(_nvJpeg.Handle, _state, ptr.DevicePointer, ref length, stream.Stream);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nvjpegEncodeRetrieveBitstreamDevice", res));
if (res != nvjpegStatus.Success)
{
throw new NvJpegException(res);
}
return(length);
}
