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  1. Hi,
    I record a PAL VHS with Hauppauge WinTV USB-Live2 and amarectv using HuffYUV as codec. The result is a .avi that preferably must be converted to a mpeg4 or .ts for easy viewing. The motion is very important in these videos. But the problem is that the file looks like it needs some deinterlacing before it will look good. How to do that?
    File is uploaded here: https://www.dropbox.com/s/svc2r4glq1tez02/amarec%2820211026-1050%29.avi?dl=0

    /J
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  2. Member DB83's Avatar
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    The video is interlaced (check that with mediainfo). But there is more.


    A true Amarectv PAL capture would give you 720*576. You have a video of 720*568. What and how did you achieve that ?


    There exists many ways to deinterlace. Avisynth would give you the best results. Many topics on here so do a little research.
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  3. Encoded with clever FFmpeg-GUI, x264, CRF 20, tune film, veryfast, deinterlaced with yadif (1 field to 1 frame, to keep the motion smooth), therefore double framerate (from 25fps to 50fps).
    Audio encoded from pcm to aac 128kbs.
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  4. Member DB83's Avatar
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    I may be mistaken but I still see combing in that conversion.


    But the problem could have been the initial 'crop'.


    And to the OP. There is no need to use external sites for samples of under 500 mb. A simple attachment is all that is required.
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  5. Originally Posted by DB83 View Post
    The video is interlaced (check that with mediainfo). But there is more.


    A true Amarectv PAL capture would give you 720*576. You have a video of 720*568. What and how did you achieve that ?


    There exists many ways to deinterlace. Avisynth would give you the best results. Many topics on here so do a little research.
    Yes it should be 720x576 but it is not even after one more try. It normally is 576. I checked the amarectv settings but found nothing there that could change it. It was set to 16:9 which i changed to 4:3.
    Avisynth how, is there a beginners guide or even a complete step by step?
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  6. Member DB83's Avatar
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    Very odd.


    I will leave it to the experts to guide you but as I said there are many posts on here about it.


    It is possible that your original tape had other issues. Quite likely a NTSC original so the PAL transfer suffers from field-blending etc. Even an 'oven-ready' standards conversion. But there are experts here that spot this a mile off.
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  7. Originally Posted by DB83 View Post
    I may be mistaken but I still see combing in that conversion.


    But the problem could have been the initial 'crop'.


    And to the OP. There is no need to use external sites for samples of under 500 mb. A simple attachment is all that is required.
    I had forgotten that i earlier added a crop of 13 at the bottom of the screen to cut the noise out. I may do the crop later in ffmpeg-gui if possible.
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  8. Member DB83's Avatar
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    Well 576 - 568 = 8 when I went to school


    But if you did crop by an odd number you have altered the interlacing hence the combing. Cropping should be done (to be safe) after the deinterlace. You would also need to resize the video since huffyuv is 5:4 and you want 4:3
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  9. Originally Posted by DB83 View Post
    Well 576 - 568 = 8 when I went to school


    But if you did crop by an odd number you have altered the interlacing hence the combing. Cropping should be done (to be safe) after the deinterlace. You would also need to resize the video since huffyuv is 5:4 and you want 4:3
    The crop was removed and now it is 576. A new recorded sample here: https://www.dropbox.com/s/59ylo17ercrqkpe/amarec%2820211026-1406%29.avi?dl=0 . This VHS is ok, but lots of the other VHS have noise. I am curious to see if clever ffmpeg can do just as a good work of making the mpeg4 after the recording is cleaned with neat video..
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  10. Originally Posted by ProWo View Post
    Encoded with clever FFmpeg-GUI, x264, CRF 20, tune film, veryfast, deinterlaced with yadif (1 field to 1 frame, to keep the motion smooth), therefore double framerate (from 25fps to 50fps).
    Audio encoded from pcm to aac 128kbs.
    Nice. Easy, fast, and the motion is good when playing on tv directly from the pc with VLC running at 50Hz. I will later try other tests too.
    Last edited by tvviewer; 26th Oct 2021 at 09:01.
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