apply different filter chains to each file

[sephirotic]

I can't figure out how to create an AVS with multiple files and apply different filter chains to each file.

I did find after googling around here on Doom9 how to apply different filter chains to different cuts using trim to a single file, such as this:

AVISource("G:\Ep16 CC.avi", audio=false).AssumeFPS(24000,1001)

function Filters1(clip c)
{
c
LSFmod(strength=50)
f3kdb (range=18, y=64, cb=64, cr=64, grainy=64, grainc=64)
maa2(ss=2.0, aa=64)
ToonLite(strength=0.3)
return last
}

FilterClip1=Filters1()

trim(0,2160) ++ FilterClip1.trim(2161,31619) ++ trim(31620,33620)
Spline36Resize(960,720)

This scrip works, but in this case I don't understand what "c" means, nor what "last" refers too, shouldn't it be the Toonlite function? And why do I need to declare FilterClip1 to receive Filters1? Why can't I just use filters 1.Trim(xxx) etc in the first place? That makes no sense to me.

I tried to use the same logic for different filter chains in the following script, but it didn't work, it gives "invalid" arguments to function Filters1:

v1 = Avisource("H:\wide2.avi")
v2 = Avisource("H:\wide3.avi")
v3= Avisource("H:\wide4.avi")
v4= Avisource("H:\wide5.avi")
audio = DirectShowSource("H:\3audio.m4a")

function Filters1(clip c)
{
c
awarpsharp2(thresh=96)
SMDegrain(tr=1, prefilter=3, refinemotion=true, contrasharp=true, truemotion=false, thsad=200, str=2.0, lsb=true, plane=4, lsb_out=true)
f3kdb(range=24, input_depth=16, output_depth=16)

return last
}
FilterClip1=Filters1()

#I tried to create a second filter chain here:
function Filters2(clip c)
{
c
awarpsharp2(thresh=96)
maa2(ss=2.0, aa=80)
SMDegrain(tr=1, prefilter=3, refinemotion=true, contrasharp=true, truemotion=false, thsad=200, str=2.0, lsb=true, plane=4, lsb_out=true)
f3kdb(range=24, input_depth=16, output_depth=16)
return last
}
FilterClip2=Filters2()

video = FilterClip1.v1+FilterClip1.v2+FilterClip2.v3+FilterClip2.v4
Ditherpost()

Actually, using multiple AVIsources instead of Trim to a single file doesn't even work with a simple filter chain such as:

v1 = Avisource("H:\wide2.avi")
v2 = Avisource("H:\wide3.avi")
v3= Avisource("H:\wide4.avi")
v4= Avisource("H:\wide5.avi")

video = v1+v2.+v3+v4

awarpsharp2(thresh=96)
maa2(ss=2.0, aa=80)
SMDegrain(tr=1, prefilter=3, refinemotion=true, contrasharp=true, truemotion=false, thsad=200, str=2.0, lsb=true, plane=4, lsb_out=true)
f3kdb(range=24, input_depth=16, output_depth=16)

Ditherpost()

All filters receive an "invalid argument to function xxx".

I did learn basic C++ on college but was never really good with scripting.
Can someone help me out?

Also, still on topic, if it's possible to answer another question:

If I wanted to import different video files, and apply different filters to several different frame intervals on all such files, something like:

v1=file1.avi
v2=file2.avi
v3=file3.avi

video=v1+v2+v3

And then from the resulting concatenated video:

trim(1,10)
receiveis filter chain 1
trim(10,20)
no filter chain
trim(30,40)
receives filter chain 1
trim(40,50)
no filter chain
trim(50,60)
receives filter chain 2
trim(70,80)
receives filter chain 3

etc, etc,
How would I do that?

I think this kind of basic doubt about different cuts and filter chains would really help to be added on the avisynth wiki examples section
Thanks a lot.

[Wilbert]

Moved to a separate thread.

[Groucho2004]

For starters, this:
v1 = Avisource("H:\wide2.avi")
v2 = Avisource("H:\wide3.avi")
v3= Avisource("H:\wide4.avi")
v4= Avisource("H:\wide5.avi")

video = v1+v2.+v3+v4

awarpsharp2(thresh=96)
maa2(ss=2.0, aa=80)
SMDegrain(tr=1, prefilter=3, refinemotion=true, contrasharp=true, truemotion=false, thsad=200, str=2.0, lsb=true, plane=4, lsb_out=true)
f3kdb(range=24, input_depth=16, output_depth=16)

Ditherpost()
does not work. You're not passing a clip to the functions starting with awarpsharp because "last" is empty (no clip).
Also what's with the dot after "v2" in "video = v1+v2.+v3+v4"? Besides, you should use aligned concatenating like this:
"v1++v2++v3++v4".

This should work:
v1 = Avisource("H:\wide2.avi")
v2 = Avisource("H:\wide3.avi")
v3 = Avisource("H:\wide4.avi")
v4 = Avisource("H:\wide5.avi")

last = v1++v2++v3++v4

awarpsharp2(thresh=96)
maa2(ss=2.0, aa=80)
SMDegrain(tr=1, prefilter=3, refinemotion=true, contrasharp=true, truemotion=false, thsad=200, str=2.0, lsb=true, plane=4, lsb_out=true)
f3kdb(range=24, input_depth=16, output_depth=16)
Ditherpost()

[Mounir]

and for the same source but with different filters applied troughout:

v = AVISource("C:\MyVideo.avi")
vid1 = v.trim(0,100).filter1().filter2().filter3()....
vid2 = v.trim(101,200).filter1().filter2().filter3()....
vid3 = v.trim(201,300).filter1().filter2().filter3()....
vid1 ++ vid2 ++ vid3