On Fri, 22 Feb 2008 09:48:20 -0800, Florin Andrei wrote:

On Fri, 22 Feb 2008 09:48:20 -0800, Florin Andrei wrote:

> Marko Loparic wrote:
>> 
>> I want to start converting dv -> dvd of 15 years of family video, so I
>> would like to check if I get the same problem as you got. Could you
>> please post the commands you used and the version of the tools so that
>> I try exactly the same thing?
> 
> At this moment, this page still has the old version of my script - the
> one that uses mpeg2enc:
> 
> http://florin.myip.org/soft/conv-dvd/
> 
> As for version numbers - I've been using these scripts for several years
> now. I used whatever was the latest version at the moment.
> 
> If you want to do comparisons, I attached to this message the new
> version of the conv-dvd script - the one that uses HCenc. For that, you
> will need to install and configure WINE - setup the fake C: drive and
> all that (on Ubuntu, the setup is done automatically the first time you
> run wine - I'm not sure about other distros). The moment you can
> successfully run "wine winver" you're good to go. Then, inside WINE, you
> need to install the following free Windows apps:
> 
> HC Encoder
> AviSynth
> Panasonic DV codec
> SoundOut AviSyth plugin (not required with AviSynth 2.6 or newer)
> avs2yuv
> 
> I had 0 issues with these apps under WINE.
> 
>> Did you check the bitrates of the resulting mpeg files?
> 
> I verified the bitrates with mplex on almost all DVDs. I verified some
> of them on the DVD player, which can optionally display live information
> about the video stream. Everything looks fine. I'm not sure what else I
> can do.



I looked through your script, and can't tell which options you used to
encode with that produce problems. Can't say I've had the same issues as
you do with dv to DVD using mpeg2enc, mplex and dvdauthor, tested myself
with Panasonic S35, Toshiba HD-A2, Philips 642, Apex 1100ad, Xbox, Xbox
360, and PS2. My DVDs play on PS3's, as that's whay my sister has, and I
just did her son's school play. No one else that recieved a copy of the 
play said anything about problems either. I gave away 36 copies, so that 
should be a good number of test subjects.

This is a sample of my command that's used.

lav2yuv kino.capture.dv | yuvdenoise -G 2,3,3 |\ 
mpeg2enc -f 8 -R 2 -K tmpgenc --cbr -b 5500 \
-M 2 -4 2 -2 1 -D 9 -g 3 -G 15 -o out.m2v

I stopped using -q because of the rate control bug, and the fact it almost
always peaks above 9000. -D 9, because, in all honesty, homemade DVD just
doesn't have the bandwidth to need a dct presion of 10. Min gop of 3, max
gop of 15. 18 is the max allowed by NTSC, 15 for PAL, gop should be x/3. 
Not using closed GOPs, because quality is always less, and using open 
GOPs allows for scene change. 2 B frames per GOP to give better 
compression.

8000 is not a conservitive value. Try 7500-7000 instead. Most consumer 
lasers will have problems with DVD+/-R(W) media at higher bitrates.


The only real issue with mplex/dvdauthor is with VOBU_SRI pointers 
causing issues with FF/FR.


The best way to find out if it's mplex/DVDAuthor, or your options used 
with mpeg2enc. Author the title with muxman (works fine with wine). If 
you still have issues with the title, change your mpeg2enc switches. If 
the problem goes away, make sure mplex and dvdauthor are up to date.


What you describe is a common problem with field order and interlacing. 
DV is usually bottom field first, if it's encoded as topfield, you'll get 
these kind of stutter steps. Also, if it's deinterlaced incorrectly, the 
same thing will happen.


-------------------------------------------------------------------------
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/
_______________________________________________
Mjpeg-users mailing list
Mjpeg-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/mjpeg-users

Reply via email to