How to use hardware video scalers?

Question

Modern graphics cards have hardware video scalers, for example as part of AMD Avivo, NVIDIA PureVideo or Intel ClearVideo. For example, AMD\'s Avivo whitepaper says:

<

Answer 1

Direct2D is Microsoft's way of gaining access to the graphics hardware, albeit indirectly. The Direct2D Transform does scaling. You won't have any direct control over the video scaler but must trust the driver to pick the correct settings for you.