keiichi87 wrote:3:2 pulldown is commonly referred as inverse telecine, or IVTC.
Actually, 3:2 pulldown and IVTC are opposites. People do animation at 24fps and then they apply 3:2 pulldown (also known as telecine) to turn it into 30fps. You may, depending on stuff, want to apply IVTC (inverse telecine) to get it back to 24. That's where the original poster is at... he now wants to apply 3:2 pulldown
again to bring it back to 30. I hope he has a good reason, because it's usually a bad thing to do; it introduces nasty interlacing; but it's sometimes necessary, as he's probably discovered.
There is some additional complication, in that when you're encoding a 24fps source to 30fps in MPEG-2, you can actually do the 3:2 pulldown (turning it into 30fps which you then encode) or you can *not* do the 3:2 pulldown, just encode 24fps, but set flags so that the viewer (DVD player, etc.) will automatically do the 3:2 pulldown itself. That latter approach seems better to me because it's friendlier to progressive viewers, but it doesn't seem to be what most people do in practice. Generally, for other formats, you don't have that in-between option. You have to either do the pulldown, or it doesn't get done.
Note, also, that when I say "24" above I actually mean 23.976, and when I say "30" I actually mean 29.970, but the exact details of why would not be useful at this point.