[MEncoder-users] NTSC DVD ripping - inverse telecine artifacts
Justin Randall
jrrandall at gmail.com
Sat May 10 20:39:03 CEST 2008
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
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