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  1. He's using a simple avisynth script script to stack the two videos together, subtracting one from the other leaving only the difference (and amplifying it for clarity). If there's no diference the results will be blank. If there's a slight difference there will be thin grey lines.

    He's also demonstrating that this stuff is probably over your head at this point and that you really should listen to what folks here are trying to tell you. Think of it as tough love.
    Last edited by smrpix; 4th Sep 2013 at 08:31.
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  2. Originally Posted by smrpix View Post
    He's using a simple avisynth script script to stack the two videos together, subtracting one from the other leaving only the difference (and amplifying it for clarity). If there's no diference the results will be blank. If there's a slight difference there will be thin grey lines.

    He's also demonstrating that this stuff is probably over your head at this point and that you really should listen to what folks here are trying to tell you. Think of it as tough love.
    Well, can you teach me to do this? I would like to.
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  3. Originally Posted by Track View Post
    Well, can you teach me to do this? I would like to.
    http://avisynth.nl/index.php/Main_Page#New_to_AviSynth_-_start_here
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  4. Originally Posted by jagabo View Post
    Originally Posted by Track View Post
    Well, can you teach me to do this? I would like to.
    http://avisynth.nl/index.php/Main_Page#New_to_AviSynth_-_start_here
    Could you maybe tell me the exact steps to do just what I am looking for without learning all the basics?

    I mean, I can guide you to installing a graphics card and you wouldn't have to know how to mod an entire rig.
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  5. He did. Just copy the script he wrote, substitute your own file names and run it in avisynth.

    If you don't recognize that, the link might be helpful.
    Last edited by smrpix; 4th Sep 2013 at 09:09.
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  6. You'll have to change WhateverSource() to something else. Try DirectShowSource() to start. That comes with AviSynth so you won't have to download and install some other AviSynth source filter. If DirectShowSource() doesn't work download the ffmpeg source filter and put it in AviSynth's plugins folder. Then use ffVideoSource(). The first time you use ffVideoSource() on a particular video it will take a while to start up because it has to build an index file for that video.
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  7. Originally Posted by smrpix View Post
    He did. Just copy the script he wrote, substitute your own file names and run it in avisynth.

    If you don't recognize that, the link might be helpful.
    I must be missing something.

    I named the first file 1.mkv and the second 6.mkv, then I put them both on the C drive so it'd be easier to type the location.

    v1=AviSource("C:\1.mkv")
    v2=DirectShowSource("C:\6.mkv")
    Subtract(v1, v2)
    Levels(112,1,144,0,255) # 8x amplify differences

    I get this error:

    "Avisynth open failure
    AVIFileSource: couldn't open file 'C:\1.mkv"
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  8. Originally Posted by Track View Post
    I must be missing something.

    I named the first file 1.mkv and the second 6.mkv, then I put them both on the C drive so it'd be easier to type the location.
    Originally Posted by Track View Post
    I'm converting a Lagarith-encoded time-lapse video from 1.5Gbps to maybe half or a quarter of that bitrate but no matter what bitrate I choose, I always get 181Mbps.
    So, do you have a Lagarith AVI, or not? AVISource works on ... AVIs. Was it your AVI you renamed as a 1.mkv?

    Oh, sorry, I was invited not to participate in this 'discussion' any longer. Forget I wrote anything.
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  9. Originally Posted by manono View Post
    Originally Posted by Track View Post
    I must be missing something.

    I named the first file 1.mkv and the second 6.mkv, then I put them both on the C drive so it'd be easier to type the location.
    Originally Posted by Track View Post
    I'm converting a Lagarith-encoded time-lapse video from 1.5Gbps to maybe half or a quarter of that bitrate but no matter what bitrate I choose, I always get 181Mbps.
    So, do you have a Lagarith AVI, or not? AVISource works on ... AVIs. Was it your AVI you renamed as a 1.mkv?

    Oh, sorry, I was invited not to participate in this 'discussion' any longer. Forget I wrote anything.
    I didn't realize it had to be an AVI file.


    The Lagarith file is AVI, but the Handbrake encode is either MP4 or MKV. So, how am I supposed to compare them..?
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