[mythtv-users] Burning MythDVD VOB Files to a DVD

[Couvrette, Jeffrey C.]

The below HowTo has been submitted for inclusion with the www.MythTV.org
<http://www.mythtv.org/>  documentation and an updated copy is kept at
www.mythtv.info <http://www.mythtv.info/> .  I am sending this to the
mailing list to be searchable in the archives.  So, however someone wants to
access this, it's their choice.

 

Also, search for related threads:

 

Burning MythTV Recordings to DVD HowTo

 

            Creating a DVD With a Menu HowTo

 

 

BURNING MYTHDVD VOB FILES TO A DVD HOWTO

 

This script is taken from a posting on the MythTV-users mailing list.

 

You can burn perfect-rip VOB files already ripped in MythDVD by commenting
out the portions of the script that grab the main feature and that grab the
chapter info and change the name of the VOB file in the script.  Or just
leave the script as is to backup directly from a DVD without using MythDVD.

 

To have this script run uninterrupted from beginning to end, you must
replace the original dvd with a blank dvd at some point during the process.

 

If you want to put multiple video titles on one DVD, you will want to create
a DVD with a menu.  In the script, change the active section to "Make the
DVD image (w/ menu)".  To create the necessary files, read "Creating a DVD
With a Menu HowTo".

 

 

####Begin dvd-backup.sh####

 

## Grab the .vob of the main feature

echo "Grabbing VOB from DVD."

tccat -i /dev/dvd -T 1,-1 -L >dvd.vob

 

## Make fifo's for extracting audio and video simultaneously

mkfifo vid.fifo

mkfifo aud.fifo

 

## perform the extraction

echo "Extracting audio and video from file1"

tcextract -i aud.fifo -t vob -x ac3 -a 0 > ofile1.ac3 &

tcextract -i vid.fifo -t vob -x mpeg2 > ofile1.m2v &

cat dvd.vob | tee aud.fifo vid.fifo >/dev/null

 

rm *.fifo

 

## Retrieve the chapter list.

echo "Retrieving chapter list from DVD"

tcprobe -i /dev/dvd -T 1 -H 10 2>&1 | egrep "\[Chapter ..\] " | \

cut -d " " -f 4 | perl -pi -e 's/\n/,/' | \

perl -pi -e 's/,$//' >chap.list &&

 

## Calculate the requantization factor

vsize1=`ls -l ofile1.m2v | awk '{print $5}'`

vsize1=`echo $vsize1 / 1048576 | bc`

asize1=`ls -l ofile1.ac3 | awk '{print $5}'`

asize1=`echo $asize1 / 1048576 | bc`

req=`echo "1.05 * $vsize1 / (4400 - asize1)" | bc -ql`

echo Requantizing at: $req

 

## Perform requantization (comment out if $req < 1.0)

echo "Requantizing MPEG video for file1"

tcrequant -i ofile1.m2v -o movie1.m2v -f $req

 

## Put the audio and video back together

echo "mplexing file1"

mplex -f 8 -S 0 -o movie1.mpeg movie1.m2v ofile1.ac3

 

## Make the dvd image (w/o menu)

echo "Making DVD file system, step 1"

dvdauthor -t -a ac3+en -c `cat chap.list` -o dvd movie.mpeg

echo "Making DVD file system, step 2"

dvdauthor -T -o dvd

 

## Make the dvd image (w/ menu)

#echo "Making DVD file system"

#dvdauthor -x dvd.xml

 

## Make DVD

echo "Writing DVD"

growisofs -Z /dev/scd0 -dvd-video DVD

 

echo "Done."

 

####End dvd-backup.sh######

 

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