# example for finding the best frame to conactenate 2 Videostreams
# If the LOWER LEFT image shows the least differences, the cut-point is okay!

# this is the framenumber of the first clip which correspondents to one of the first frames of the second clip
criticalFrame = 80020

# Both video sources with framenumbers
a = AviSource("Schtonk_1.avi").ShowFrameNumber(true)
b = AviSource("Schtonk_2.avi").ShowFrameNumber(true)

c = a.trim(criticalFrame,0)

d = subtract(b,c).levels(64,1,192,0,255)
e = subtract(b,c.trim(1,0)).levels(64,1,192,0,255)

return StackVertical(StackHorizontal(c.subtitle("clip a"),b.subtitle("clip b")),StackHorizontal(d.subtitle("clip a ^ clip b"),e.subtitle ("clip a+1 ^ clip b")))