Pipe .vob files to .mpeg2[SOLVED]

[schorsche]

Hi there,

I was just wandering if there is a tool that supports .vob-file to mpeg2-file conversion.
I don't want to encode it like the way mencoder does. Is there a tool out there that
just dumbs a dvd's content into a mpeg2-file. It would be also great if I could select
the starting/end-position of the video.

Many thanks

[derverstand]

Why not mplayer? Mplayer can do exactly this.
/BR

[fangorn]

mplayer dvd://1 -dumpstream -dumpfile <filename>
dumps the whole data stream of title 1 on dvd to filename

mplayer dvd://1 -dumpvideo -dumpfile <filename.m2v>
mplayer dvd://1 -alang en -dumpaudio -dumpfile <filename_en.ac3>
mplayer dvd://1 -alang de -dumpaudio -dumpfile <filename_de.ac3>
mplex -t 8 -o filename.mpg <filename.m2v> <filename_en.ac3> <filename_de.ac3>
dumps the video stream and the english and german audio streams of title 1 and multiplexes them to a dualchannel mpeg file. (not sure about -t 8, have to select type DVD, man mplex will help)

tcrequant can requantize the video stream to the result will fit to a single layer dvdr
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Video Encoding scripts collection | Project page

[madisonicus]

What don't you like about how mencoder does things? Most things are tweakable with mplayer/mencoder.

You should also be able to one-step this with ffmpeg. Here's an example of it right out of the ffmpeg manual:

[pteppic]

[schorsche]

Thanks guys, the dumpfile-option worked a treat! So now I've got one huge .mpeg file.
Any hints how I can cut it into chuncks?

[fangorn]

Do you want to fit the whole video on more than one DVD-R or do you want to cut the video in more than one part?

To fit it on DVD-R you could shrink the video size to <4.4GB with tcrequant or requant.

To cut the video into pieces, use mplayer with start-stop timecode, or if you prefer a gui avidemux.
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Video Encoding scripts collection | Project page

[schorsche]

All I want to do is to cut the file into smaller pieces. I googled for the start/stop-timecode option
in mplayer, but couldn't find any more information on it. Do I apply this option from within
mplayer or from the command-line?
Cheers!

[pteppic]

[schorsche]

Cool thx, that worked! You were right, the first couple of frames turned out to be in bad quality.
An other thing is that after I dumbed the entire DVD into one single mpg file, whenever I play
the file using mplayer the time-bar starts off counting from 0 again for each new section.
This is strange, since I've only got one single mpeg-file.
If I want to extract each single section from the mpeg-stream into separate files now, I don't know
how to handle this with the end/start position.
How do yo do it?

THx in advance

[pteppic]

[schorsche]

Yes, I refer to the different chapters. They got all dumped into one mpeg file using the -dumpfile option.
The timeline of this file, however, starts from 00:00:00 for each chapter.

[pteppic]

If you use mencoder, with '-oac copy -ovc copy -of mpeg', on the whole file it will create one large file with a proper timecode that you can then split up.

If you are using dumpfile then you should decide which chapters you want in each 'dumped' file when you copy it from the dvd, and do it in stages, chapters 1-6= part1.mpg, chapters 7-12= part2.mpg etc.

[schorsche]

Thanks that worked, SOLVED!