[pinterf]

1.) OK, Y416 is now really done but cannot test, vdub says: XYUV64 output is not implemented. Using vdubmod 38494.

2.) (plane hack)
It looks something like this in the avs source

// Old VDub wants YUV for YV24 and YV16 and YVU for YV12.
  if (parent->VDubPlanarHack && !vi.IsYV12()) {
    plane1 = PLANAR_U;
    plane2 = PLANAR_V;
  }
  else {
    // Set default VFW output plane order.
    plane1 = PLANAR_V;
    plane2 = PLANAR_U;
  }