SDL_DisplayYUVOverlay- Blit the overlay to the display
int SDL_DisplayYUVOverlay(SDL_Overlay *overlay, SDL_Rect *dstrect);
Blit the overlay to the surface specified when it was created. The SDL_Rect
structure, dstrect, specifies the position and size of the destination. If the
dstrect is a larger or smaller than the overlay then the overlay will be scaled,
this is optimized for 2x scaling.