[MEncoder-users] NTSC DVD ripping - inverse telecine artifacts

Benoit kvasarnov at gmail.com
Sat May 10 22:31:14 CEST 2008 

You did help me, I learned about telecine and interlacing!

Now I'm trying to get rid of the last small artifacts. It seems that mcdeint
helped to reduce the ones I was talking about in my first message. But
mcdeint is designed to work with deinterlacers filters, am I wrong? Do you
know a proper way to fix it?


On Sat, May 10, 2008 at 8:39 PM, Justin Randall <jrrandall at gmail.com> wrote:

> Hi Benoit,
>
> Looking back, your original post with the switching back and forth
> between "30000/1001 fps NTSC" and "24000/1001 fps" does suggest a
> telecline pattern.  Sorry I wasn't much help there.
>
> On Sat, May 10, 2008 at 1:33 PM, Benoit <kvasarnov at gmail.com> wrote:
> > Hi,
> >
> > Sorry for answering this late but I had some exams lately.
> >
> > I searched a little more about interlaced and telecined movies. From what
> I
> > read, animes are usually not interlaced but telecined. Plus, I got better
> > results using the filmdint filter associated with mcdeint (I suppose
> mcdeint
> > is made to work with deinterlacers filters but the fact is that I had a
> > better result...). I still have some small artifacts with high motions
> > scenes but they are not visible while playing.
> >
> >
> > On Sun, May 4, 2008 at 11:31 PM, Justin Randall <jrrandall at gmail.com>
> wrote:
> >
> >> You could also try it without the mcdeint (motion componsation
> >> de-interlacer) first if you want, to see if that gives you good
> >> results.
> >>
> >> On Sun, May 4, 2008 at 5:16 PM, Justin Randall <jrrandall at gmail.com>
> >> wrote:
> >> > Ok the best way to convert NTSC pure interlaced 30 fps to progressive
> >> >  is to double the frame rate to 60 fps.  Otherwise you loose a lot of
> >> >  information.  I would suggest trying something like this.  Be careful
> >> >  of frame order in the source.  MPEG2 can be bootom frame first or top
> >> >  frame first.  (Disclaimer: Depending on your CPU, this will take a
> >> >  LONG time to process, but that is the price for converting interlaced
> >> >  content properly).  The reason I only do one pass using constant
> >> >  quantizer for the encode is because the de-interlacing takes so long.
> >> >  Good luck and again let me know how it comes out.
> >> >  -Justin
> >> >
> >> >  For top frame first (TFF) MPEG2 content:
> >> >
> >> > >> mencoder dvd://1 -nosound -vf
> >> >  yadif=3:1,mcdeint=2:1:10,scale=640:480 -sws 9 -ofps 60000/1001 -ovc
> >> >
> >> > x264 -x264encopts
> >> >
> >>
>  threads=auto:qp=17:qpmax=28:subq=6:partitions=all:8x8dct:me=umh:subme=6:frameref=5:bframes=3:b_pyramid:b_rdo:weight_b:keyint=250
> >> >  -o Output.avi
> >> >
> >> >  For bottom frame first (BFF) MPEG2 content (notice the 0's for the
> >> >  second options of yadif and mcdeint):
> >> >
> >> > >> mencoder dvd://1 -nosound -vf
> >> >  yadif=3:0,mcdeint=2:0:10,scale=640:480 -sws 9 -ofps 60000/1001 -ovc
> >> >
> >> > x264 -x264encopts
> >> >
> >>
>  threads=auto:qp=17:qpmax=28:subq=6:partitions=all:8x8dct:me=umh:subme=6:frameref=5:bframes=3:b_pyramid:b_rdo:weight_b:keyint=250
> >> >  -o Output.avi
> >> >
> >> >
> >> >
> >> >
> >> > On Sun, May 4, 2008 at 4:39 PM, Benoit <kvasarnov at gmail.com> wrote:
> >> >  > Hi,
> >> >  >
> >> >  >  You were right, it seems like it is an interlaced video but yadif
> did
> >> not
> >> >  >  work well (more artifacts than before. I used the pp=lb filter
> >> instead.
> >> >  >
> >> >  >  But I get some weird frames:
> >> >  >  http://img509.imageshack.us/img509/9369/screenshot3yj0.png
> >> >  >
> >> >  >
> >> >  >  As you can see there's no more artifact but it seems like two
> frames
> >> are
> >> >  >  merged together.
> >> >  >
> >> >  >  Do you know how to fix it?
> >> >  >
> >> >  >
> >> >  >
> >> >  >
> >> >  >
> >> >  >  On Sat, May 3, 2008 at 1:16 AM, Justin Randall <
> jrrandall at gmail.com>
> >> wrote:
> >> >  >
> >> >  >  > Hi there,
> >> >  >  >
> >> >  >  > If your source is truely 100% teleclined, then this should work
> >> well for
> >> >  >  > you..
> >> >  >  >
> >> >  >  > >> mencoder dvd://1 -nosound -vf
> >> >  >  > pullup,hqdn3d=3:2:3:3,softskip,harddup -sws 9 -ofps 24000/1001
> -ovc
> >> >  >  > x264 -x264encopts
> >> >  >  >
> >> >  >  >
> >>
> threads=auto:qp=17:qpmax=28:subq=6:partitions=all:8x8dct:me=umh:subme=6:frameref=5:bframes=3:b_pyramid:b_rdo:weight_b:keyint=250
> >> >  >  > -o Output.avi
> >> >  >  >
> >> >  >  > Otherwise you're dealing with interlaced and this will probably
> >> work
> >> >  >  > better (WARNING: should take a LONG time to encode but the
> results
> >> >  >  > should be good).
> >> >  >  > >> mencoder dvd://1 -nosound -vf yadif,hqdn3d=3:2:3:3,harddup
> -sws
> >> 9
> >> >  >  > -ovc x264 -x264encopts
> >> >  >  >
> >> >  >  >
> >>
> threads=auto:qp=17:qpmax=28:subq=6:partitions=all:8x8dct:me=umh:subme=6:frameref=5:bframes=3:b_pyramid:b_rdo:weight_b:keyint=250
> >> >  >  > -o Output.avi
> >> >  >  >
> >> >  >  > Good luck and please let me know how these work for you.
> >> >  >  >
> >> >  >  > Thanks,
> >> >  >  > Justin
> >> >  >  >
> >> >  >  > On Fri, May 2, 2008 at 4:48 PM, Benoit <kvasarnov at gmail.com>
> >> wrote:
> >> >  >  > > Hello,
> >> >  >  > >
> >> >  >  > >  I bought some DVDs of my favorite anime but I experience
> >> problems
> >> >  >  > encoding
> >> >  >  > >  them.
> >> >  >  > >
> >> >  >  > >  It is an NTSC Mixed progressive and telecine video (mplayer
> >> switches
> >> >  >  > back
> >> >  >  > >  and forth between "30000/1001 fps NTSC" and "24000/1001
> fps").
> >> >  >  > >  I used the 'pullup' filter associated with 'softskip', which
> >> produce
> >> >  >  > these
> >> >  >  > >  results with a few frames:
> >> >  >  > >  http://img136.imageshack.us/img136/1602/mencoderkg0.jpg
> >> >  >  > >
> >> >  >  > >  Here is the telecined frame that causes problems:
> >> >  >  > >  http://img178.imageshack.us/img178/4061/screenshot1bf7.png
> >> >  >  > >
> >> >  >  > >  I downloaded the same episode from a torrent to compare the
> >> quality.
> >> >  >  > The
> >> >  >  > >  encoder did a great job and got this result:
> >> >  >  > >  http://img353.imageshack.us/img353/3430/mencoder2lx7.jpg
> >> >  >  > >
> >> >  >  > >  I don't think this encoder used the same source as mine, but
> I'd
> >> like
> >> >  >  > to get
> >> >  >  > >  some advice from experienced encoders to help me fix my
> problem
> >> and get
> >> >  >  > a
> >> >  >  > >  similar quality.
> >> >  >  > >
> >> >  >  > >  The command line I used:
> >> >  >  > >  mencoder dvd://1 -nosound -ovc x264 -x264encopts
> >> >  >  > >
> >> >  >  >
> >>
>  bitrate=1200:subq=4:partitions=all:me=umh:frameref=3:bframes=2:trellis=2:b_pyramid:weight_b:threads=auto
> >> >  >  > >  -ofps 24000/1001 -vf pullup,softskip,scale=640:480 -fps 29.97
> -o
> >> >  >  > Output.avi
> >> >  >  > >
> >> >  >  > >
> >> >  >  > >  Thanks a lot!
> >> >  >  > >
> >> >  >  > >
> >> >  >  > >  Regards
> >> >  >  > >  _______________________________________________
> >> >  >  > >  MEncoder-users mailing list
> >> >  >  > >  MEncoder-users at mplayerhq.hu
> >> >  >  > >  https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
> >> >  >  > >
> >> >  >  >
> >> >  >  >
> >> >  >  >
> >> >  >  > --
> >> >  >  > Justin Randall
> >> >  >  > 617.733.4107
> >> >  >  > _______________________________________________
> >> >  >  > MEncoder-users mailing list
> >> >  >  > MEncoder-users at mplayerhq.hu
> >> >  >  > https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
> >> >  >  >
> >> >  >  _______________________________________________
> >> >  >  MEncoder-users mailing list
> >> >  >  MEncoder-users at mplayerhq.hu
> >> >  >  https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
> >> >  >
> >> >
> >> >
> >> >
> >> >  --
> >> >
> >> >
> >> > Justin Randall
> >> >  617.733.4107
> >> >
> >>
> >>
> >>
> >> --
> >> Justin Randall
> >> 617.733.4107
> >> _______________________________________________
> >> MEncoder-users mailing list
> >> MEncoder-users at mplayerhq.hu
> >> https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
> >>
> > _______________________________________________
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> >
>
>
>
> --
> Justin Randall
> 617.733.4107
> _______________________________________________
> MEncoder-users mailing list
> MEncoder-users at mplayerhq.hu
> https://lists.mplayerhq.hu/mailman/listinfo/mencoder-users
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