Re: NVIDIA Quadro SDI sync detect incorrect
Yeah, oops. Can't speak to the SDI capture card specifically, but speaking from a video guy perspective, your 23.98 PsF *IS* 47.96i.
That's not the case with your other example - 23.98P versus 59.94i.
Not sure if that makes sense to you, but PsF is an interlaced signal that, by common agreement, is actually a set of progressive frames broken into fields.
As such, there is no way to tell them apart in a simple sync signal. In fact, that's sort of the point - the signal can pretend to be interlaced so that it can pass through an interlace friendly signal path.
I would expect an actual video signal might have a flag to indicate this signal type - have to look at the spec, i.e., it might be in the ancillary data.