[FFmpeg-user] Trying to remember how I did this.....

[Mark Dm]

Its NOT Telecine. It is Digital Video 8 video at 27.97 FPS
I am looking specifically for the setting that derives the 59.94FPS from
the 27.97 FPS source with such beauty and without deinterlace.

On Wed, Oct 4, 2023 at 12:28 AM Laine <llee040 at sbcglobal.net> wrote:

>
>
>
> > On Oct 4, 2023, at 1:36 AM, Mark Dm <markosjal at gmail.com> wrote:
> >
> > I had some DVD Video that I had converted using ffmpeg some years ago.
> What
> > I did was converted NTSC DVD video (4x3) to 960x720 @59.94 FPS and the
> > result was incredible. I had found a forum some time later where another
> > user claimed he had done the same and he too had incredible results. The
> > result as I recall is way better than deinterlacing and I still have some
> > of the videos I upscaled this way. . It essentially creates a frame
> > for every field and if I pause the video I may see a slight blur but no
> > scan lines. I also see no scan lines while video is playing
> >
> > I do remember that I did it all with ffmpeg command line conversions. It
> > does NOT use deinterlacing as that throws away half the resolution, and
> > results in visible scan lines. Instead it increases the frame rate by two
> > and I chose to upscale to 720P. As I recall I also did some PAL as well
> as
> > NTSC using the same method.
> >
> > I am looking to recover this method if I can as I will be transferring a
> > bunch of Digital8 videos and want to do it the same way to create mp4
> files
> > at 720P at 59.94FPS
> >
> > Any help appreciated
> >
> > THanks
> >
> > Mark
>
> For NTSC DVD you might want pullup. There’s more than one way to apply
> pullup. What normally works best for me for NTSC DVD is to specify the
> output frame rate with "-r 24000/1001" and use some sort of fieldmatch
> video filter such as “fieldmatch" alone or
> "fieldmatch=order=tff:combmatch=none,decimate”. You may find that it isn’t
> necessary to specify the 24.976 frame rate. Use the filter before scaling
> or cropping in the filter chain. The source video needs to be pretty clean
> regarding pulldown (without or nearly without any dropped frames). You
> should be able to identify the pulldown pattern in your source by stepping
> through it frame by frame with a video player app such as IINA. By default
> it’s the “.” (period) key. If it’s telecine, you’ll be able to observe 3
> progressive frames followed by 2 pairs of interlaced frames. Something to
> try, anyway.
>
> L. Lee
>
>
>
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