Re: [transcode-users] DVD FAST forward

[Torsten Römer <torsten.roemer@xxxxxxxxxx>]

I have just tried with a another (real) DVD player, a Philips DVD 612. 
The DVDs behave totally normal, fast forward, rewind, chapters, titles, 
everything works just as with a "bought" DVD. I tried with both a +R and 
+RW.

I wonder if the type/brand of DVD R/W can have something to do with such 
problems? Maybe if the player has problems to read a DVD, it might fail 
to do things like fast forward? You wrote that this was working earlier, 
have you changed DVD R/W type or brand?

Anyway, here the commands I use:

transcode -i noname.avi -V -R 3 -w 2 --video_max_bitrate 9600 
--export_asr 2 -F "8,-K tmpgenc" -b 224 -E 48000 --ext null,null -J 
resample -N 0x2000 -y mpeg2enc,ffmpeg -m noname.ac3 -o noname.m2v

mplex -f 8 -V -o noname.mpg /shared/video/jtvd/tmp/noname.m2v noname.ac3

dvdauthor -x /shared/video/jtvd/tmp/config.xml

growisofs -use-the-force-luke=tty -dvd-video -Z /dev/scd1 dvd

Versions used are:

* Transcode (0.6.13 CVS)
* MJPEG Tools (1.6.1.92)
* tooLAME (0.2l)
* DVDAuthor (0.6.8)
* dvd+rw-tools (5.16.4.8.5)


Torsten


Jacob wrote:
> I still have trouble with fast forward.  It goes forward slightly faster
> then regular play.  Rewind seems to work just fine.  The bbmpeg
> libraries seem to work as well but they are so slow (3fps).
>
> Here are the versions of my apps and the command lines I have tried.
>
> libmjpegtools0 1.6.2-0.0
> mjpegtools     1.6.2-0.0
> transcode-doc  0.6.12-0.0
> dvdauthor      0.6.9-1
>
> transcode -i /dev/dvd -T 1,-1 -V -y mpeg2enc,raw -F 8,' -K tmpgenc ' -o
> test -w 2200 -a 0 -A -N 0x2000 -m test.ac3
>
> also for the -F i have used 
> -F 8,' -d'  or -F 8,' -s'
>
> transcode -i /dev/dvd -T 2,-1 -V -y ffmpeg,raw -F mpeg2video
> --export_prof dvd-ntsc -o 2-3-2 -w 2200 -a 0 -A -N 0x2000 -m 2-3-2.ac3
>
> Neither mpeg2enc or ffmpeg will make video that allow me to fast forward
> at the correct rate.
>
> Jake
>
>
> On Fri, 2004-02-27 at 16:35, Torsten Römer wrote:
>
> > How does your -F parameter look like? I'm using this: -F "8,-K tmpgenc".
> >
> > According to mpeg2enc's manpage, the mpeg profile (-f) sets already all 
> > necessary options for the chosen type of stream.
> > All other options, like bitrate and so on, are set by transcode.
> >
> > Works fine for me.
> >
> > If you feel like it you could also try my tool to encode and burn your 
> > file: http://www.luniks.net/java/jtvd.do
> >
> > Torsten
> >
> > Jacob wrote:
> >
> > > my fast forward works on computer, just not in dvd player but I think i
> > > may have found problem.  there is an option in mpeg2enc to add sequence
> > > fram eto beginning of gop.  i will try that
> > >
> > > jake
> > >
> > >
> > > On Fri, 2004-02-27 at 14:24, Torsten Römer wrote:
> > >
> > >
> > > > Hi Jake,
> > > >
> > > > I just tried with one of my DVDs; the fast forward works normal. But I 
> > > > have only tried on my Yamakawa-thingy, I'll later try with a real DVD 
> > > > player as well.
> > > >
> > > > I'm using pretty recent versions of the tools.
> > > >
> > > > Torsten
> > > >
> > > > Jacob Millspaw wrote:
> > > >
> > > >
> > > > > I have been making DVDs with transcode and lately(after some upgrades)
> > > > > my dvdplayer fast scan forward doesnt work.  It basically plays the
> > > > > movie at the normal speed without sound and a little choppy.  Has
> > > > > something changed that I dont know about with transcode? or maybe its
> > > > > with mpeg2enc (althought I have the same problem with ffmpeg).  
> > > > >
> > > > > Any ideas?
> > > > >
> > > > > jake


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