[mythtv-users] No audio in standalone DVD player from burned DVD
Thomas Börkel
thomas at boerkel.de
Thu Apr 29 04:47:08 EDT 2004
HI!
Gerald Gryschuk wrote:
> I thought I read something somewhere sometime(how's that for vague?)
> about some players requiring ac3 format as the audio. What's up with
> that? Is this possibly an issue in my case? I don't do anything to the
> videos beyond splitting them using mpeg2desc and remultiplexing using
> mplex.
If I play a DVD with MP2 audio on my Toshiba, I have to manually switch
it to MP2, otherwise I don't have sound. That's the reason I always
convert the audio to AC3.
Here is my script for remultiplexing (with correct audio offset),
converting the audio to AC3, mastering and burning:
nuv2dvd.sh:
------------------------------------------
DVDDIR="/buffer/dvd"
DEVICE="/dev/sr0"
let offset=`mpeg2desc -m < "$1"`
rm "$1.fifo.m2v"
rm "$1.fifo.mp2"
rm "$1.fifo.ac3"
mkfifo "$1.fifo.m2v"
mkfifo "$1.fifo.mp2"
mkfifo "$1.fifo.ac3"
nice mpeg2desc -a0 < "$1" > "$1.fifo.mp2" &
nice mpeg2desc -v0 < "$1" > "$1.fifo.m2v" &
nice ffmpeg -y -i "$1.fifo.mp2" -acodec ac3 -ab 224 "$1.fifo.ac3" &
nice mplex -O "$offset"mpt -f 8 -o "$1.mpg" "$1.fifo.m2v" "$1.fifo.ac3"
rm "$1.fifo.m2v"
rm "$1.fifo.mp2"
rm "$1.fifo.ac3"
rm -r $DVDDIR/*
echo "<dvdauthor><vmgm /><titleset><titles><pgc><vob file=\"$1.mpg\"
/></pgc></titles></titleset></dvdauthor>" > "$1.xml"
dvdauthor -o $DVDDIR -x "$1.xml"
growisofs -dvd-video -Z $DEVICE $DVDDIR
------------------------------------------
If you only want to convert, then delete the dvdauthor and growisofs lines.
I use 224 KBit AC3, but you can of course also use 384 KBit, if you want.
Example:
./nuv2dvd.sh Example.nuv
Thomas
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