Re: [Dvdauthor-users] remultiplex help

[Michael S. <li...@mi...>]

On Mon, 25 Dec 2006 21:40:33 -0600
Eric P <eri...@gm...> wrote:

> But how exactly to I remultiplex the VOB files?


  Eric,

This happens to me all the time because I have a DVD player that
crashes easily with DVDs that don't follow the standard. :( 
First of all, cat all the successive VOB's together (not VIDEO_TS.VOB,
handle that separately). In what follows, be aware that I mainly
use NTSC as I am in the USA. You will need the mpeg tools, ffmpeg and
transcode packages installed (to get mplex, ffmpeg, and tcextract).

cat VTS_01_1.VOB VTS_01_2.VOB ... > VTS_ALL.VOB

Then, break that into separate audio and video:

tcextract -i VTS_ALL.VOB -x mpeg2 > VTS_ALL.M2V
tcextract -i VTS_ALL.VOB -x ac3 > VTS_ALL.AC3

Watch out that the .AC3 is not zero length. If it is,
then the sound is in PCM format which has to be
handled differently:

tcextract -i VTS_ALL.VOB -x pcm > VTS_ALL.lpcm

(note that mplex needs to see a .lpcm extension)
in which case I normally convert the lpcm to ac3 via
ffmpeg:

ffmpeg -f s16le -ar 48000 -ac 2 -i VTS_ALL.lpcm -acodec ac3 -ab 192 VTS_ALL.AC3

because there seem to be endian problems of some sort
with the lpcm output of tcextract and what goes in mplex.

Then, remux them back together:

mplex -f 8 -o VTS_ALL_FIX.VOB VTS_ALL.M2V VTS_ALL.AC3

Check that A/V sync is OK by playing the new VOB in mplayer.

You can then use dvdauthor with chapter breaks (or use your
own xml specs):

dvdauthor -t  VIDEO_TS.VOB -o outdir -c 600,1200,1800,2400,3000,3600,4200,4800,5400,6000,6600,7200,7800,8400,9000,9600,10200,10800,11400,12000 VTS_ALL_FIX.VOB

dvdauthor -T -o outdir

Then, build an iso image:

mkisofs -dvd-video -o ./dvd.img outdir

and burn it:

growisofs -speed=4 -dvd-compat -Z /dev/dvd=dvd.img

All done!


I'm sure Wolfgang Wershofen can add to this as he is more
experienced in DVD authoring than I. ;)


  Cheers,

  Mike Shell