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  1. Member Lathe's Avatar
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    Hello All!

    Been quite a while since I've been here, but I've stumbled across something that's been so long since I've had to deal with it, I've forgotten what to do...

    Basically it is an HD print of a movie. But, whomever encoded it apparently did not do it right. Something like encoding 29.xx framerate as progressive, or something like that. Now, I KNOW you probably cannot totally fix it. I actually have the DVD and believe it or not it is even worse. So, I would LIKE to keep the HD print and somehow figure out how to 'fix' it the best I can. I'm SO damn rusty with Avisynth and that, that it took me awhile even to figure out how to run any script and preview it. I'll try to upload or give a link to a 20 second snippet of it if I can here so you can see what I'm dealing with. I also have a snippet of the DVD so that you can see why I want to try to 'fix' the HD print. I'll also upload stills so you can see that the HD print does indeed look better, though not by a whole lot.

    I've tried this AVS script so far. Of course, I have absolutely NO bloody idea what the hell I am doing, but I'm just reading the descriptions of the different filters and such and throwing whatever I can at it to see what happens. I DO think this has improved it somewhat, but there is still quite a bit or motion combing and such. Basically, I'm trying to detelecine it (if that is the right word) and some other stuff, but I REALLY need some input from you guys who do know what you are doing. I'll try to upload both snippets. the "Snippet.mkv" is the HD print. The "GCDVD.mkv" is the DVD print. Here is the script I've thrown together to see what it does. Like I say, I am TOTALLY in the dark about what all these settings and parameters actually do, I'm only going by the descriptions and guessing

    DirectShowSource("Snippet.mkv")
    tfm(mode=4, pp=6, slow=2, cthresh=4, mthresh=5)
    tdecimate(mode=1, hybrid=1, dupThresh=1.1, vidThresh=1.1, nt=2, chroma=true, denoise=true)
    Sharpen(.2)


    Now, I KNOW everyone says don't use DirectShow, but it is easy and it is the only way I know how to load the MKV file for now. I DO have a DGDecode.dll in my plugins folder, but I have no idea what to do with it. What is weird, too, is that even if the dll's are in my plugin directory, if I load them, the preview (AVPmod I think) says that 'There is no function called *****' Like I put DotKill.dll in my directory, but if I try to load and run it I get the same error. It runs SOME of the dll's and not others. Very strange... Anyway, the script does seem to help a little with the combing and such, but there still is quite a bit.

    I'm sure that whomever originally encoded the HD print did it improperly, but if I can at least IMPROVE it, it actually is a very good film and like I mentioned and you will see, the original DVD really sux. So, I really appreciate any input and PLEASE something moderately simple I can do using Avisynth (and HOPEFULLY understanding why the hell half the plugins don't work) and then I guess using an x264 CMD line to re-encode it.

    Thanks so much!
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  2. @Lathe
    The DVD variant is telecined, with pattern glitches and/or dropped frames e.g. where the speaker leaves the desk. You may still IVTC the DVD version and continue from there (and trash the flawed HD variant IMHO):

    Code:
    ffms2("GCDVD.mkv")   #or the source filter of your choice
    assumeTFF()
    TFM().TDecimate() #returns 23.976 progressive video
    #... add some denoising etc. of your choice here ....
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    Last edited by Sharc; 6th May 2023 at 13:05.
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  3. Member Lathe's Avatar
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    Originally Posted by Sharc View Post
    @Lathe
    The DVD variant is telecined, with pattern glitches and/or dropped frames e.g. where the speaker leaves the desk. You may still IVTC the DVD version and continue from there (and trash the flawed HD variant IMHO):

    Code:
    ffms2("GCDVD.mkv")   #or the source filter of your choice
    assumeTFF()
    TFM().TDecimate() #returns 23.976 progressive video
    #... add some denoising etc. of your choice here ....
    Oh WOW, you are right! I just assumed that the perceived 'better' colours and look of the HD print were superiour. But, I am impressed by how you basically eliminated all the combing from the DVD print! I'll try the code you suggested, it looks so simple! Thanks Bro!
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