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  1. I downloaded a video from YouTube and for some reason YouTube changed the FPS from 23.976fps to 60fps but all the extra frames are duplicates.
    Why do they do that?

    Is there any Avisynth script that will automatically remove the duplicate frames?

    I tried the following. the FDecimate line works but the QTGMC line causes ghosting artifacts. Why does it do that and is there any way to use QTGMC without getting that problem as I want to remove the jaggies on the guy's glasses.

    Code:
    FDecimate()
    QTGMC(Preset="Faster", InputType=1
    Attached is the Untouched download via YouTube-DL program. Here's the batch script I used to download the video:

    Code:
    cd /D "%~dp0" 
    youtube-dl -f ("bestvideo[width>=1920]"/bestvideo)+bestaudio/best https://www.youtube.com/watch?v=6CA9ilybJ5Q -o "L:/YouTube/Politics/%%(uploader)s/%%(upload_date)s    %%(title)s    %%(id)s    New Zealand %%(height)sp @@%%(vcodec)s %%(acodec)s@@. FPS %%(fps)s, Views %%(view_count)s.%%(ext)s" --embed-subs --sub-lang en --ignore-errors --restrict-filenames --download-archive archive.txt --merge-output-format mkv
    youtube-dl https://www.youtube.com/watch?v=6CA9ilybJ5Q -o "L:/YouTube/Politics/%%(uploader)s/%%(upload_date)s    %%(title)s.%%(ext)s" --ignore-errors --restrict-filenames --write-description --write-thumbnail --skip-download 
    PAUSE
    Also attached is a shorter trimmed sample which I got by using the Trim tool in VideoRedo V5.

    Script I'm Using

    Code:
    LWLibavVideoSource("L:\Trimmed VP9.mkv") 
    
    SelectEven()
    a=last
    
    a
    QTGMC(preset="Medium", inputtype=2, sharpness=0.5)
    b=last
    
    b.Trim(0,1272) ++ a.Trim(1273,0)
    Even without the script after the SelectEven line, frame 0 and 1 are still duplicates and they shouldn't be. Seems that is causing QTGMC not to work, the script runs but QTGMC doesn't smooth the jaggies.
    Image Attached Files
    Last edited by AndersonJames; 19th Jul 2020 at 19:37.
    Quote Quote  
  2. Usually that would be the uploader's fault . If they uploaded 23.976p , youtube would keep it like that

    If your assessment is correct, a possible script would look like

    #Source Filter
    SelectEven()
    TDecimate()
    Quote Quote  
  3. Thanks. The guy has over 800 thousand subscribers so I don't think the guy would upload a messy video like that. I think he uploaded in 23.976p. What do you think? His channel is here: https://www.youtube.com/c/TheQuartering/videos
    Video is here: https://www.youtube.com/watch?v=6CA9ilybJ5Q

    Do you have a link to a YouTube video which uses 23.976fps?
    Quote Quote  
  4. Originally Posted by AndersonJames View Post
    Do you have a link to a YouTube video which uses 23.976fps?
    eg. Almost any official movie preview/trailer

    You can test it yourself. Upload a 23.976p video. No "59.94p" version will be even be offered


    If he has a "60p" option , it means that's what he uploaded
    Quote Quote  
  5. Originally Posted by poisondeathray View Post
    Usually that would be the uploader's fault . If they uploaded 23.976p , youtube would keep it like that

    If your assessment is correct, a possible script would look like

    #Source Filter
    SelectEven()
    TDecimate()
    Tried that but it gives 25.808 fps instead of 23.976.

    Tried this and FDecimate works but for some reason the QTGMC line adds weird ghosting artifacts. Why does it do that? I want to use QTGMC to get rid of the jaggies on his glasses. Any suggestions please? I've added a short clip of the source in my original post.

    Code:
    FDecimate()
    QTGMC(Preset="Faster", InputType=1)
    Quote Quote  
  6. Originally Posted by AndersonJames View Post
    Originally Posted by poisondeathray View Post
    Usually that would be the uploader's fault . If they uploaded 23.976p , youtube would keep it like that

    If your assessment is correct, a possible script would look like

    #Source Filter
    SelectEven()
    TDecimate()
    Tried that but it gives 25.808 fps instead of 23.976.

    Tried this and FDecimate works but for some reason the QTGMC line adds weird ghosting artifacts. Why does it do that? I want to use QTGMC to get rid of the jaggies on his glasses. Any suggestions please? I've added a short clip of the source in my original post.

    Code:
    FDecimate()
    QTGMC(Preset="Faster", InputType=1)

    Probably your source filter is not returning the proper frame rate , perhaps jitter in the timestamps. What are you using ?

    Check with info() after the source filter , no other filters
    Quote Quote  
  7. Originally Posted by AndersonJames View Post


    That's 30.0p segment in that video with the face shot, and it's been badly deinterlaced and/or upscaled. Possibly some frame drops too. YOu can tell this because every 2nd frame is a duplicate in the 60.0p version

    It's not 23.976p content



    You can just download the 30.0p version, no processing. Or you can process it to "fix" the aliasing issues
    Quote Quote  
  8. This is the source filter I'm using: FFVideoSource("L:\Trimmed VP9.mkv", fpsnum=24, fpsden=1, threads=1)

    Info reports 64.5203 fps without using any other filters. Source Clip is attached in my first post.
    Quote Quote  
  9. Originally Posted by poisondeathray View Post
    Originally Posted by AndersonJames View Post


    That's 30.0p segment in that video with the face shot, and it's been badly deinterlaced and/or upscaled. Possibly some frame drops too. YOu can tell this because every 2nd frame is a duplicate in the 60.0p version

    It's not 23.976p content



    You can just download the 30.0p version, no processing. Or you can process it to "fix" the aliasing issues
    Not possible normally for me to redownload the correct version as my download script always downloads the best quality version. Do you have a script to fix the video please?
    Quote Quote  
  10. Originally Posted by AndersonJames View Post
    Not possible normally for me to redownload the correct version as my download script always downloads the best quality version. Do you have a script to fix the video please?



    If you're starting with a 1080p60.0 version, it depends which version you downloaded- if you are using VP9 or H264.

    I downloaded the AVC version with AAC audio using

    Code:
    youtube-dl -f 299+140 https://www.youtube.com/watch?v=6CA9ilybJ5Q
    LWLibavVideoSource should be able to open either properly. You can check with info. It should say 60.0p

    SelectEven will drop every 2nd frame, and you'll end up with 30.0p

    Only the intro/closeup needs processing in terms of aliasing. The rest can be left at 30.0p (the latter part doesn't have the aliasing/jaggies issues)

    Code:
    LWLibavVideoSource("Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.mp4")
    SelectEven()
    a=last
    
    a
    QTGMC(inputtype=2, sharpness=0.5)
    b=last
    
    b.Trim(0,1272) ++ a.Trim(1273,0)

    If you downladed a different version ,you might have adjust it slightly
    Quote Quote  
  11. I have found that the decimate filter in FFMPEG worked the best out of several other programs that I tried. Removed all duplicate frames.
    Quote Quote  
  12. When I run that script it says:
    Script error: There is no function named: LWLibavVideoSource
    Quote Quote  
  13. Originally Posted by poisondeathray View Post
    Originally Posted by AndersonJames View Post
    Not possible normally for me to redownload the correct version as my download script always downloads the best quality version. Do you have a script to fix the video please?



    If you're starting with a 1080p60.0 version, it depends which version you downloaded- if you are using VP9 or H264.

    I downloaded the AVC version with AAC audio using

    Code:
    youtube-dl -f 299+140 https://www.youtube.com/watch?v=6CA9ilybJ5Q
    LWLibavVideoSource should be able to open either properly. You can check with info. It should say 60.0p

    SelectEven will drop every 2nd frame, and you'll end up with 30.0p

    Only the intro/closeup needs processing in terms of aliasing. The rest can be left at 30.0p (the latter part doesn't have the aliasing/jaggies issues)

    Code:
    LWLibavVideoSource("Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.mp4")
    SelectEven()
    a=last
    
    a
    QTGMC(inputtype=2, sharpness=0.5)
    b=last
    
    b.Trim(0,1272) ++ a.Trim(1273,0)

    If you downladed a different version ,you might have adjust it slightly
    When I run that script it says:
    Script error: There is no function named: LWLibavVideoSource
    Quote Quote  
  14. Originally Posted by AndersonJames View Post

    When I run that script it says:
    Script error: There is no function named: LWLibavVideoSource
    LSmash
    https://github.com/HolyWu/L-SMASH-Works/releases
    Quote Quote  
  15. Thanks. Got it working. But when previewing the video in AvsPmod before encoding the video I can still see the ghosting. It's 30fps but there's still ghosting.
    Quote Quote  
  16. Originally Posted by AndersonJames View Post
    Thanks. Got it working. But when previewing the video in AvsPmod before encoding the video I can still see the ghosting. It's 30fps but there's still ghosting.
    What are you describing as "ghosting" ? Can you post a screenshot or describe it better?

    I see motion blur, from the camera. It's soft , low quality upscale, blurry - but none of those are what would be described as "ghosting"

    "ghosting" typically implies double images or after images. A blend of more than 1 time
    Quote Quote  
  17. The following frames are duplicates: 15, 29
    What does that mean?

    I encoded the video but it came out looking much worse than the source. Frame 146 and 147 have an example of the ghosting I'm referring to. It looks like a previous image has had parts of it left behind in the current frame.

    Image
    [Attachment 54200 - Click to enlarge]


    QTGMC is actually make those artefacts, it's making the picture look worse rather than better! Any suggestions on how to fix the jaggies in the source?
    Last edited by AndersonJames; 19th Jul 2020 at 15:02.
    Quote Quote  
  18. Something wrong with your version, maybe your dependency plugins are old ? If you comment out the QTGMC line, do you still get "ghosting"? (is it a lsmash issue or QTGMC issue on your end) ?

    Are you using the original video? That frame 146,147 is nowhere near 146,147 in my version in 30fps

    I don't see duplicates there on my version with that script in that range (did you mean 14,15, or 15,16) ? etc... either way in that range to frame 40 and beyond, each frame is unique for me .

    I don't see any ghosting like that in mine either (QTGMC in progressive mode is helping the jaggies; or it does when you get it working properly)
    Quote Quote  
  19. The corresponding screenshot for your screenshot should be frame 136

    selecteven()
    Image
    [Attachment 54201 - Click to enlarge]


    selecteven().QTGMC(inputtype=2, sharpness=0.5)
    Image
    [Attachment 54202 - Click to enlarge]



    No ghosting for either ; the main difference is less aliasing with QTGMC processing (you can compare the hat, glass rims, super mario etc...)


    Typical culprits that could explain your results are bad source filter (that version lsmash is ok, it's the same one I'm using.), old prerequisites plugins, maybe wrong downloaded video maybe some issues with it
    Quote Quote  
  20. I'm using the Trimmed source clip I uploaded in my first post. I'm talking about frame number 146 and 147. The ghosting issues shown in the photo I uploaded only show when I add the QTGMC lines in the script.

    The following script displays fine for me without ghosting:

    Code:
    LWLibavVideoSource("L:\Trimmed VP9.mkv") 
    
    SelectEven()
    When I use the full script including QTGMC I get the ghosting:

    Code:
    LWLibavVideoSource("L:\Trimmed VP9.mkv") 
    
    SelectEven()
    a=last
    
    a
    QTGMC(inputtype=2, sharpness=0.5)
    b=last
    
    b.Trim(0,1272) ++ a.Trim(1273,0)
    If you don't get ghosting on your PC can you please give me a zip of your Avisynth plugins directory and tell me which Avisynth version you have installed. I'll try using the same to see if it fixes the issue. Never seen a problem like this before after years of using QTGMC!
    Quote Quote  
  21. Originally Posted by AndersonJames View Post
    I think he uploaded in 23.976p.
    You're dead wrong. As pdr said, YouTube doesn't increase the original framerate.
    Do you have a link to a YouTube video which uses 23.976fps?
    My own channels are all film-based and all the 1400 or so videos are 23.976fps. Most of what you claim throughout this thread is sheer nonsense.
    Quote Quote  
  22. There are problems with the version you downloaded (and uploaded to post #1), or perhaps it was the way you cut it, or the way it's being decoded. That's at least one of the problems

    eg. In your version, just the source filter, already frame 0, frame 1 are duplicates with selecteven(). But the original VP9 version is clean, no duplicates with the same source filter with selecteven()

    It's clean for me if you download the AVC version or VP9 version from youtube with that script
    Quote Quote  
  23. vp9/opus version downloaded with this
    Code:
    youtube-dl -f 303+251 https://www.youtube.com/watch?v=6CA9ilybJ5Q
    I stream copy / cut the intro with ffmpeg uploaded here as "cut.webm" 43 seconds for the intro + a bit of the other section uploaded below

    Code:
    ffmpeg -i "Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.webm" -c:v copy -c:a copy -t 00:00:43 cut.webm
    encode the script , stream copy the opus audio (no reason to re-encode or degrade the audio). The output is q.mkv uploaded below
    Code:
    ffmpeg -i 1_vp9_cut.avs -i "cut.webm" -map 0:0 -map 1:1 -c:v libx264 -crf 18 -c:a copy q.mkv
    You can actually probably cut the video into 2 sections, and just re-encode/process the 1st part then join, since the 2nd is unfiltered. That way you don't have to re-encode the 2nd part. But cutting and joining vp9 is not straight forward


    I think there is an issue with your downloading method, or cutting method
    Image Attached Files
    Quote Quote  
  24. Originally Posted by poisondeathray View Post
    There are problems with the version you downloaded (and uploaded to post #1), or perhaps it was the way you cut it, or the way it's being decoded. That's at least one of the problems

    eg. In your version, just the source filter, already frame 0, frame 1 are duplicates with selecteven(). But the original VP9 version is clean, no duplicates with the same source filter with selecteven()

    It's clean for me if you download the AVC version or VP9 version from youtube with that script
    I've updated my 1st post to provide you the full untouched source video that I downloaded via the YouTube-DL program. Here's the batch script I used to download the video:

    Code:
    cd /D "%~dp0" 
    youtube-dl -f ("bestvideo[width>=1920]"/bestvideo)+bestaudio/best https://www.youtube.com/watch?v=6CA9ilybJ5Q -o "L:/YouTube/%%(upload_date)s    %%(title)s    %%(id)s    New Zealand %%(height)sp @@%%(vcodec)s %%(acodec)s@@. FPS %%(fps)s, Views %%(view_count)s.%%(ext)s" --embed-subs --sub-lang en --ignore-errors --restrict-filenames --download-archive archive.txt --merge-output-format mkv
    youtube-dl https://www.youtube.com/watch?v=6CA9ilybJ5Q -o "L:/YouTube/%%(upload_date)s    %%(title)s.%%(ext)s" --ignore-errors --restrict-filenames --write-description --write-thumbnail --skip-download 
    PAUSE
    Even on that video, frames 0 and 1 are still duplicates for me after using SelectEven(). Why are you getting a different video without those issues? Can you give the above download script a try please and tell me if frames 0 and 1 are duplicates for you? I don't understand why I'm getting these ghosting issues and why QTGMC is not having any effect on the jaggies.
    Quote Quote  
  25. Yes there is a duplicate in your video when decoded with lsmash and SelectEven(). It might be something with buggy mkv timestamps. You can remux it with ffmpeg it seems to work in terms of no duplicates, QTGMC working properly, at least for me

    Code:
    ffmpeg -i "VP9 Untouched Source from YouTube-DL.mkv" -c:v copy -c:a copy remux.mkv
    Maybe the --merge-output-format did something to it. I just used the plain youtube-dl command posted earlier an it worked as-is
    Quote Quote  
  26. EDIT: And downloading with your batch (just changing the directory) , it works ok in terms of no duplicate

    I'm checking with lsmash and selecteven()

    But your video in post #1 has the duplicate after selecteven()
    Quote Quote  
  27. The bytes are different
    97,420,702 bytes for youtube-dl batch download just now
    97,420,716 bytes for your version from post #1

    I was using youtube-dl dated 2020-05-28, not sure if that makes a difference.

    The timestamps look ok; it's something else that is the problem
    Quote Quote  
  28. In the script I used in post 1 to download, I removed the MKV merge bit and I get a .webm file. In AVSPmod when previewing the video, frames 0 and 1 are still duplicates. This is before I've encoded the video.

    Don't understand why you used the same script as me which I provided to download the file yet I'm getting duplicate frames on frame 0 and 1? Are you sure you used the same script as me to download apart from the directory?
    Quote Quote  
  29. Originally Posted by AndersonJames View Post
    Don't understand why you used the same script as me which I provided to download the file yet I'm getting duplicate frames on frame 0 and 1? Are you sure you used the same script as me to download apart from the directory?
    To be clear, I'm talking about duplicate still there after SelectEven(). It shouldn't be there

    I'm certain, just the directory difference. And possibly youtube-dl version difference.

    Did you try cut.webm above ? Did you get the duplicate frame after selecteven() (Not taking about QTGMC yet)


    There are some byte differences between what I get with your script and what you uploaded. Try downloading it again. Maybe something got corrupted the 1st time
    Quote Quote  
  30. Originally Posted by poisondeathray View Post
    vp9/opus version downloaded with this
    Code:
    youtube-dl -f 303+251 https://www.youtube.com/watch?v=6CA9ilybJ5Q
    I stream copy / cut the intro with ffmpeg uploaded here as "cut.webm" 43 seconds for the intro + a bit of the other section uploaded below

    Code:
    ffmpeg -i "Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.webm" -c:v copy -c:a copy -t 00:00:43 cut.webm
    encode the script , stream copy the opus audio (no reason to re-encode or degrade the audio). The output is q.mkv uploaded below
    Code:
    ffmpeg -i 1_vp9_cut.avs -i "cut.webm" -map 0:0 -map 1:1 -c:v libx264 -crf 18 -c:a copy q.mkv
    You can actually probably cut the video into 2 sections, and just re-encode/process the 1st part then join, since the 2nd is unfiltered. That way you don't have to re-encode the 2nd part. But cutting and joining vp9 is not straight forward


    I think there is an issue with your downloading method, or cutting method
    I tried the first 2 scripts in your post and I get the "cut.webm" file. Opening that in AVSPmod I still get duplicate frames. The 3rd script which I put after the other 2 scripts fails saying "1_vp9_cut.avs: Unknown error occurred". Full output of the batch file is below:
    Code:
    X:\Portable Installations\YouTube-DL>cd /D "X:\Portable Installations\YouTube-DL
    \"
    
    X:\Portable Installations\YouTube-DL>youtube-dl -f 303+251 https://www.youtube.c
    om/watch?v=6CA9ilybJ5Q
    [youtube] 6CA9ilybJ5Q: Downloading webpage
    [download] Destination: Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thous
    ands Stolen! Be Careful!-6CA9ilybJ5Q.f303.webm
    [download] 100% of 86.03MiB in 01:01
    [download] Destination: Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thous
    ands Stolen! Be Careful!-6CA9ilybJ5Q.f251.webm
    [download] 100% of 6.88MiB in 00:07
    [ffmpeg] Merging formats into "Massive Twitter Hack! Obama, Mr. Beast & Even GOD
    ! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.webm"
    Deleting original file Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousa
    nds Stolen! Be Careful!-6CA9ilybJ5Q.f303.webm (pass -k to keep)
    Deleting original file Massive Twitter Hack! Obama, Mr. Beast & Even GOD! Thousa
    nds Stolen! Be Careful!-6CA9ilybJ5Q.f251.webm (pass -k to keep)
    
    X:\Portable Installations\YouTube-DL>ffmpeg -i "Massive Twitter Hack! Obama, Mr.
     Beast & Even GOD! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.webm" -c:v copy -c:
    a copy -t 00:00:43 cut.webm
    ffmpeg version N-65018-gad91bf8 Copyright (c) 2000-2014 the FFmpeg developers
      built on Jul 26 2014 22:09:15 with gcc 4.8.3 (GCC)
      configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
    modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
    b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
    r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
    able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
     --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
    libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
      libavutil      52. 92.101 / 52. 92.101
      libavcodec     55. 69.100 / 55. 69.100
      libavformat    55. 49.100 / 55. 49.100
      libavdevice    55. 13.102 / 55. 13.102
      libavfilter     4. 11.102 /  4. 11.102
      libswscale      2.  6.100 /  2.  6.100
      libswresample   0. 19.100 /  0. 19.100
      libpostproc    52.  3.100 / 52.  3.100
    Input #0, matroska,webm, from 'Massive Twitter Hack! Obama, Mr. Beast & Even GOD
    ! Thousands Stolen! Be Careful!-6CA9ilybJ5Q.webm':
      Metadata:
        encoder         : Lavf55.49.100
      Duration: 00:08:22.94, start: 0.007000, bitrate: 1549 kb/s
        Stream #0:0(eng): Video: vp9, yuv420p, 1920x1080, SAR 1:1 DAR 16:9, 60 fps,
    60 tbr, 1k tbn, 1k tbc (default)
        Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp (default)
    Output #0, webm, to 'cut.webm':
      Metadata:
        encoder         : Lavf55.49.100
        Stream #0:0(eng): Video: vp9, yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=2-31,
     60 fps, 1k tbn, 1k tbc (default)
        Stream #0:1(eng): Audio: opus, 48000 Hz, stereo (default)
    Stream mapping:
      Stream #0:0 -> #0:0 (copy)
      Stream #0:1 -> #0:1 (copy)
    Press [q] to stop, [?] for help
    frame= 2777 fps=0.0 q=-1.0 Lsize=   23037kB time=00:00:42.99 bitrate=4389.7kbits
    /s
    video:22413kB audio:589kB subtitle:0kB other streams:0kB global headers:0kB muxi
    ng overhead: 0.151192%
    
    X:\Portable Installations\YouTube-DL>ffmpeg -i 1_vp9_cut.avs -i "cut.webm" -map
    0:0 -map 1:1 -c:v libx264 -crf 18 -c:a copy q.mkv
    ffmpeg version N-65018-gad91bf8 Copyright (c) 2000-2014 the FFmpeg developers
      built on Jul 26 2014 22:09:15 with gcc 4.8.3 (GCC)
      configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
    enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-lib
    modplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
    b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinge
    r --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --en
    able-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis
     --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-
    libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
      libavutil      52. 92.101 / 52. 92.101
      libavcodec     55. 69.100 / 55. 69.100
      libavformat    55. 49.100 / 55. 49.100
      libavdevice    55. 13.102 / 55. 13.102
      libavfilter     4. 11.102 /  4. 11.102
      libswscale      2.  6.100 /  2.  6.100
      libswresample   0. 19.100 /  0. 19.100
      libpostproc    52.  3.100 / 52.  3.100
    1_vp9_cut.avs: Unknown error occurred
    
    X:\Portable Installations\YouTube-DL>PAUSE
    Press any key to continue . . .
    I tested your cut.webm file in AvsPmod and there's NO duplicate frames. I don't understand why you don't get duplicate frames and I do when we're both using the same download script? I have Youtube-DL version 2020.6.16.1
    Does your script still work when using that version and are the frames missing in the cut.webm file created when using that version?
    Last edited by AndersonJames; 19th Jul 2020 at 21:30.
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