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  1. Member
    Join Date
    Dec 2008
    Location
    Spain
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    I have a set of 100 images and I would like to convert them into a video with crossfade between images.

    I need each image to be shown for 5 seconds then to crossfade to the next.

    Is it possible to do that in AviSynth?

    I am using Windows 8.1

    The images are in JPG format but I can convert them to PNG or other format if required
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  2. Not sure whether there isn't an easier solution, but something along the lines of:
    Code:
    LoadPlugin("PATH TO ImageSeq.dll") # http://avisynth.nl/index.php/ImageSequence
    LoadPlugin("PATH TO GScript_26_32.dll") # http://avisynth.nl/index.php/GScript
    
    # "I need each image to be shown for 5 seconds then to crossfade to the next."
    #  ->A assuming a target fo 25 fps each frame needs to be repeated 25*5 = 125 times
    # Assuming the frame are named 001.jpg to 400.jpg
    clip = ImageReader(file="E:\sequence\Wallpaper\%03d.jpg", start=1, end=400, fps=25.0/125.0, use_DeviL=true, pixel_type="RGB24")
    clip = clip.ChangeFPS(25) 
    # now each frame is repeated 125 times | 5fps and thus is shown five seconds
    
    # now we add between crossfades with a length of fade_length of frame between the 5 second segments
    fade_length = 50
    result=BlankClip(length=0, width=clip.Width(), height=clip.Height, pixel_type=clip.PixelType(), fps=clip.FrameRate(),audio_rate=0)
    GScript("""
    for ( pos = 0, (clip.FrameCount()/125)-1, 1) {
       tmp = Dissolve( clip.Trim( pos*125, pos*125+fade_length/2 ), clip.Trim((pos+1)*125,(pos+1)*125+fade_length/2 ) , fade_length)
       result = result ++ clip.Trim( pos*125, (pos+1)*125 -1) ++ tmp ++ clip.Trim( pos*125, (pos+1)*125 -1)
    }
    """)
    
    return result
    should do the trick.
    (iirc. there was a slide show maker based on Avisynth, but I forgot it's name)

    Cu Selur
    users currently on my ignore list: deadrats, Stears555
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  3. Member Budman1's Avatar
    Join Date
    Jul 2012
    Location
    NORTHWEST ILLINOIS, USA
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    There is an Avisynth called TransAll for multiple types of transitions if you have the videos already made upmade up:

    Image
    [Attachment 59942 - Click to enlarge]


    The Avisynth script goes something like the following. There are many setting to change the output as you can see0

    Image
    [Attachment 59941 - Click to enlarge]


    The script:
    Code:
    a=DirectShowSource("C:\Users\Bud\Desktop\test.mp4",pixel_type="yuy2").ResampleAudio(48000).Spline36Resize(852,480).ConvertFPS(29.97).trim(1,149)
    b=DirectShowSource("C:\Users\Bud\Desktop\test.mp4",pixel_type="yuy2").ResampleAudio(48000).Spline36Resize(852,480).ConvertFPS(29.97).trim(1,149)
    c=DirectShowSource("C:\Users\Bud\Desktop\test.mp4",pixel_type="yuy2").ResampleAudio(48000).Spline36Resize(852,480).ConvertFPS(29.97).trim(1,149)
    d=DirectShowSource("C:\Users\Bud\Desktop\test.mp4",pixel_type="yuy2").ResampleAudio(48000).Spline36Resize(852,480).ConvertFPS(29.97).trim(1,149)
    aa = TransPush(a,b, 59,"left")
    ba = TransAccord(aa , c, 59,"hor",true,false)
    ca = TransBubbles(ba , d, 59)
    vid=ca
    newvid = vid.ChangeFPS(29.97).Spline36Resize(854,480)
    newvid
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