[Didée]

MVTools' documentation has examples to show the usage of most of its tools. E.g. this here:

To denoise by MDegrain2 with overlapped blocks (blksize=8) and subpixel precision:

AVISource("c:\test.avi") # or MPEG2Source, DirectShowSource, some previous filter, etc
super = MSuper(pel=2, sharp=1)
backward_vec2 = MAnalyse(super, isb = true, delta = 2, overlap=4)
backward_vec1 = MAnalyse(super, isb = true, delta = 1, overlap=4)
forward_vec1 = MAnalyse(super, isb = false, delta = 1, overlap=4)
forward_vec2 = MAnalyse(super, isb = false, delta = 2, overlap=4)
MDegrain2(super, backward_vec1,forward_vec1,backward_vec2,forward_vec2,thSAD=400)

Turning this into a meta function:

function MCDegrain(clip c, int "frames")
{
frames = default(frames, 2)
bs = (c.width>960) ? 16 : 8
super = c.MSuper(pel=2, sharp=1)
backward_vec3 = MAnalyse(super, isb = true, delta = 3, blksize=bs, overlap=bs/2)
backward_vec2 = MAnalyse(super, isb = true, delta = 2, blksize=bs, overlap=bs/2)
backward_vec1 = MAnalyse(super, isb = true, delta = 1, blksize=bs, overlap=bs/2)
forward_vec1 = MAnalyse(super, isb = false, delta = 1, blksize=bs, overlap=bs/2)
forward_vec2 = MAnalyse(super, isb = false, delta = 2, blksize=bs, overlap=bs/2)
forward_vec3 = MAnalyse(super, isb = false, delta = 3, blksize=bs, overlap=bs/2)
(frames<=0) ? c :\
(frames==1) ? c.MDegrain1(super, backward_vec1,forward_vec1,thSAD=400) :\
(frames==2) ? c.MDegrain2(super, backward_vec1,forward_vec1,backward_vec2,forward_vec2,thSAD=400) :\
              c.MDegrain3(super, backward_vec1,forward_vec1,backward_vec2,forward_vec2,backward_vec3,forward_vec3,thSAD=400)
return(last) }

Save this as an "*.avsi" file, and import(..) it in your main script.
Then you can simply call it like "video.MCDegrain(1)" or "MCDegrain(2)" or "MCDegrain(3)". Number-of-frames is the only parameter, the rest is automatic (blocksize) or fixed. More parameters can be added as needed.

This should be simple enough to use?