v1 = AVISource("video1.avi").ChangeFPS(30)
v2 = AVISource("video2.avi").ChangeFPS(30)
v2_vor_schnitt = v2.Trim(0, 600)
v2_nach_schnitt = v2.Trim(1950, v2.FrameCount())

v1+v2_vor_schnitt+v2_nach_schnitt

AviSource("1 (1).avi").FadeIn(90)+\
AviSource("rauschen.avi")+\
AviSource("1 (2).avi").FadeOut(90)

ChangeFPS(30)
ConvertToYV12

function ClipMatch(clip video, clip video2, bool "boarder"){
    boarder = Default(boarder, false)
    # TODO: possibility to just add boarders, and no resize.
    
    rgb = IsRGB (video)
    rgb24 = IsRGB24 (video)
    rgb32 =IsRGB32 (video) 
    yuy2 = IsYUY2 (video) 
    yv12 = IsYV12 (video) 
    
    # is 2 if stereo && is 1 if mono
    videoIsStereo = video.AudioChannels()
    video2IsStereo = video2.AudioChannels()
    
    
    # so if those are both 2, or 1 its fine with the cannels. however if the do not match and audio is 2 it must be converted to mono. if they do not match and audio is 1 --> simulate Stereo by adding the same channel twice.
    video2 = (videoIsStereo==video2IsStereo) ? video2 : (video2IsStereo==2) ? video2.ConvertToMono() : MergeChannels(video2,video2)
    # if boarder is true:
    done = (boarder) ? video2.AddBorders((video.width()-video2.Width())/2, (video.Height()-video2.Height())/2, (video.width()-video2.Width())/2, (video.Height()-video2.Height())/2, color=$000000) : video2.BilinearResize(video.Width(), video.Height())
    done = done.ChangeFPS(video.FrameRate())
    done = done.SSRC(video.AudioRate())
    done = rgb ? done.converttorgb() : (rgb24 ? done.converttorgb24() : (rgb32 ? done.converttorgb32() : ( \
    yuy2 ? done.ConvertToYUY2() :  done.converttoyv12() )))
    
    return done
}

 v1 = AviSource("1 (1).avi").FadeIn(90)
 v2 = AviSource("rauschen.avi")
 v3 = AviSource("1 (2).avi").FadeOut(90)

v2 = clipmatch(v1,v2)

v1+v2+v3

ChangeFPS(30)
ConvertToYV12

program --preset slower --crf 30 --deblock -1:-1 --keyint 600 --min-keyint 30 --bframes 12 --scenecut 80 --ref 6 --aq-strength 1.5 --merange 20 --direct temporal --no-fast-pskip --colormatrix bt709 --output "output" "input"