How to unpack DVD movie to edit it's video/sound?
Guy Fraser
guy at incentre.net
Wed Aug 24 16:10:14 UTC 2005
On Tue, 2005-23-08 at 11:07 -0600, Robin Laing wrote:
> Strong wrote:
> > I wrote recently, but did get any respond, trying to rewrite another
> > way...
> > I have a DVD movie, that needs to be edited: video and sound.
> > Thus the question is: what software i should use to unpack from its
> > format to the format that will be operable for the video audio
> > processing as the next step?
> > Finally, i want to compile it in DVD format again. So, it will be nice
> > to loose its quality minimally. Big thanks, for Your solutions!
>
> Funny, it has been discussed a couple of times since your original post
> but in different threads.
>
> This was from a thread on copying a DVD.
> Here is a script I use for shrinking DVDs. Needs some work but you
> should get the idea. You will need to d'load vobcopy, tcextract etc.
>
> Using the tools mentioned and Audacity and avidemux2 or similar
> programs, you should be in business.
>
> I have installed yumextender and this allows me to search through the
> various packages that are on the reposotiries that I use. It makes it
> easier to browse the various and numerious packages that are available.
>
> Basically, you have to convert the DVD vob files to a format that you
> can edit.
>
> #! /bin/bash
> cd /video
> pwd
> echo "Ripping DVD"
> vobcopy -l /dev/hda -t movie
> echo "Extracting Video"
> tcextract -i movie*-1.vob -t vob -x mpeg2 > movie.m2v
> echo "Extracting Audio"
> tcextract -i movie*-1.vob -t vob -x ac3 -a 0 > movie.ac3
> echo "Calculating Shrink Ratio"
> rm movie*-1.vob
> echo "Calculating Shrink Ratio"
> M1=$(ls -l movie.m2v | awk '{ print $5 }')
> M2=$(ls -l movie.ac3 | awk '{ print $5 }')
> M3=$(echo 4600000000 - $M2 | bc)
> M4=$(echo "scale = 2; $M1 / $M3 * 1.04" | bc)
> echo "Movie size =" $M1
> echo "Sound size =" $M2
> echo "Blank - Sound size =" $M3
> echo "Scale Factor =" $M4
> echo "Shrinking For DVD-5"
> tcrequant -i movie.m2v -o shrink.m2v -f $M4
> echo "Deleting Video File"
> rm movie.m2v
> echo "Re-combining Video and Audio"
> mplex -f 8 -o movie%d.mpg shrink.m2v movie.ac3
> echo "Deleting Video File"
> rm shrink.m2v
> echo "Deleting Audio File"
> rm movie.ac3
> echo "Authoring DVD..."
> dvdauthor -o output -x dvd.xml
Cool!
Where did you get the dvd.xml or what do you use to generate it ?
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