Converting 15 fps

[rjc7394]

Ever hear of s-mpeg4 at 15 fps? How do I convert this to NTSC standard 29.97 fps?

[Guest]

v=avisource("yourfile.avi")
interleave(v,v)
assumefps(30.0)
fdecimate(29.97)

[Chainmax]

If you're making an (S)VCD or a DVD, you don't have to worry about converting fps, using DGPulldown (http://neuron2.net/dgpulldown/dgpulldown.html) will suffice.

[Guest]

DGPulldown can increase the framerate by a maximum factor of 1.5 times.

[Chainmax]

Oops, my bad :o. Why is that anyway?

[Guest]

Pulling down a frame adds one extra field, i.e., converts 2 fields to 3 fields. If all the coded frames are pulled down, you've increased the total number of frames by 3/2.