Steve Hosgood wrote: > Andrew Church wrote: > > > Actually, there's no need to set the frame rate at all when using a > >frame rate code, so the right parameter is -f 0,4 (now fixed on the wiki). > >That's a good question, I wonder why somebody thought 24fps was the NTSC > >TV frame rate... > > > > Not sure if it's relevant, but 23.976fps is the rate at which 24fps > movies actually run on the NTSC television system after the so-called > "3:2 pulldown". This is due to the actual NTSC frame rate being 29.97 > fps, not the 30fps that you might have expected (long story.... don't ask!). > > I would not be surprised to find that these same strange numbers have > been perpetuated into the spec for U.S HDTV, even though there is no > technical reason for it.
Andrew Church is a transcoding guru. When he says 24 we all know to read it as 24000/1001, and when he says 30 we all know he means 30000/1001. The strangest artifact to have found it's way into modern televisions is overscan. The fact that my very expensive LCD TV has artificial overscan really pisses me off.
