| bukzor |
05-12-2006 06:44 PM |
SCRIPT: Convert & Burn to DVD
I've written a script to convert and burn movies to DVD. Please try it out and post any suggestions / bugs that you have. Also if you see better ways to code what i have, please post a diff and i'll take a look at it.
Thanks,
bukzor
Required packages: ffmpeg, dvdauthor, dvd+rw-tools
Code:
#!/bin/bash
#packages used: ffmpeg, dvdauthor, dvd+rw-tools
#TODO
#somehow do length/size detection and split onto multiple dvd's
#port to VCD, SVCD
#FIXME
#cannot fast-forward through tracks
#Functions~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#run <command>
#runs the command and prints it to stderr
#only prints if $dryrun=true
run(){
echo -n ">> " > /dev/stderr
if ! $dryrun; then
echo "$@" | tee /dev/stderr | sh -
return $?
else
echo "$@"
return 0;
fi
}
cleanup(){
if $cleanup && [ "$cleanuplist" ]; then
echo "# cleaning up..."
run rm -R $cleanuplist
fi
}
#Aspect-Ratio detection~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
getaspect(){
#2.350000 =Panavision (235:100)
#2.063888
#1.777777 =Widescreen (16:9)
#1.555555
#1.333333 =Normal (4:3)
#parses out `height x 10000 / width` from "ffmpeg -i"
#(no decimal numbers in bash)
aspect=`ffmpeg -i "$1" 2>&1 | grep "Stream\ #0.0"`
aspect=`echo "$aspect" | sed "s/.* \([1-9][0-9]*\)x\([0-9]*\).*/\10000 \/ \2/"`
echo ">> $aspect"
aspect=$(( $aspect ))
if [ $aspect -gt 20639 ]; then
#dvdauthor does not understand panavision aspect ratio (2.35)
#we must pad the video into widescreen (16:9)
aspect="16:9";
pana="-s 720x380 -padtop 50 -padbottom 50";
echo "# $1 is Panavision"
elif [ $aspect -lt 15555 ]; then
aspect="4:3"
echo "# $1 is Normal."
else
aspect="16:9"
echo "# $1 is Widescreen"
fi
}
#Encoding~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
encode(){
#TODO do a better checking for DVD format
for avi in "$@"; do
case $avi in
*.DVD.mpg )
echo "# $avi is in DVD format, skipping..."
mpglist="$mpglist \"$avi\"";;
* )
mpg=`echo "$avi" | sed "s/\.[^.]*$//g"`
mpg="$mpg.DVD.mpg"
mpglist="$mpglist \"$mpg\""
if ! [ -f "$mpg" ]; then
echo "# Encoding $mpg..."
if run "ffmpeg -i \"$avi\" -target $standard-dvd -y \
-aspect $aspect $pana $name.temp.DVD.mpg"; then
run "mv $name.temp.DVD.mpg \"$mpg\""
cleanuplist="$cleanuplist \"$mpg\""
else
echo "# ffmpeg ERROR WHILE ENCODING \"$avi\""
exit 1
fi
else
echo "# $avi already encoded! Skipping..."
fi;;
esac
done
echo "# Encoding complete!"
}
#Authoring~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
author(){
if run dvdauthor -o $dvddir -v $standard+$aspect $mpglist; then
cleanup;
cleanuplist="\"$dvddir\""
else
echo "# dvdauthor error"
exit 1;
fi
run dvdauthor -o "$dvddir" -T
}
#ISO creation~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
image(){
if run mkisofs -dvd-video -o $iso $dvddir; then
cleanup
cleanuplist="\"$iso\""
else
echo "# ERROR: mkisofs";
exit 1;
fi
#at this point you can view the iso with:
# mplayer dvd:// -dvd-device name.iso
}
#Burn~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
burn(){
if run growisofs -Z /dev/hdb=$iso -speed=8; then
cleanup
cleanuplist=""
else
echo "# ERROR: growisofs"
exit 1
fi
}
#displays help and exits
showhelp(){
helptext
exit 1
}
helptext(){
echo "Usage: `basename $0` [OPTIONS]... clip1.avi clip2.avi..." ;
echo "Convert each clip to .mpg, author to a folder, convert to .iso image,";
echo "then finally burn to DVD." ;
echo " -n, --name <base> base name for created files (recommended)" ;
echo " -c, --cleanup will cleanup intermediate files" ;
echo " -d, --dryrun will display but not execute commands";
echo " -h, --help show more options" ;
echo "";
echo "Target options:";
echo " -e, --encode only encode the clips.";
echo " -a, --author stop after encoding and authoring the clips";
echo " -i, --image only create a .iso image of a DVD, no burning.";
echo " -b, --burn <iso> only burn the specified image, no processing";
}
morehelptext(){
echo "";
echo "MORE OPTIONS:";
echo " -p, --pal the PAL tv standard will be used (default NTSC)";
echo ""
echo "Aspect options: (automatic aspect detection by default)";
echo " --norm clips will be encoded to normal 4:3";
echo " --wide clips will be encoded to widescreen 16:9";
echo " --pana clips will be encoded to panavision 2.35";
echo "";
echo "Process control options:";
echo " --no-encode - do not create DVD-compatible clips";
echo " --no-author - do not create a DVD-format directory tree"
echo " --no-image - do notcreate ISO image for burning";
echo " --no-burn - disable burning";
}
#Main~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#Set defaults
encode="true"
author="true"
image="true"
burn="true"
dryrun="false"
cleanup="false"
standard="ntsc" #TV standard to use
#Option processing
if ! [ "$1" ]; then
showhelp
fi
while [ "$#" -gt 0 ]; do
case $1 in
-h|--help) helptext; morehelptext; exit 0;;
-d|--dryrun ) echo "Doing a dry-run."; dryrun="true"; shift;;
-c|--cleanup ) echo "Will cleanup files."; cleanup="true"; shift;;
-p|--pal ) standard="pal"; shift;;
--norm ) echo "Aspect set to Normal."; aspect="4:3"; shift;;
--wide ) echo "Aspect set to Widescreen."; aspect="16:9"; shift;;
--pana ) echo "Aspect set to Panavision."; aspect="16:9";
pana="-s 720x380 -padtop 50 -padbottom 50"; shift;;
--no-encode ) echo "Encoding disabled."; encode="false"; shift;;
--no-author ) echo "Authoring disabled."; author="false"; shift;;
--no-image ) echo "Imaging disabled."; image="false"; shift;;
--no-burn ) echo "Burning disabled."; burn="false"; shift;;
-e|--encode)
echo "Will only do encoding."
burn="false"; author="false"; image="false"; shift;;
-a|--author)
echo "Will only author DVD to '$name.dvd/'."
burn="false"; image="false"; shift;;
-i|--image)
echo "Will create but not burn '$name.iso'."
burn="false"; shift;;
-b|--burn)
echo "Will only burn $2."
iso="$2"; burn; exit 0 ;;
-n|--name )
echo "Setting base name to '$2'."
name="$2"; dvddir="$name.dvd"; iso="$name.iso"; shift 2;;
-* ) echo "ERROR: option = $1";showhelp;;
* ) break;;
esac
done
shift $(($OPTIND - 1)) #takes the processed options out of $@
#More defaults...
if ! [ "$name" ]; then
#basename for files to be created
#strips non-alphanumeric characters and the extension
name=`echo "$1" | sed -e "s/\.[^.]*$//" -e "s/[^[:alnum:]]/./g"`
dvddir="$name.dvd" #folder to put DVD in
iso="$name.iso" #iso file to be created & burned
fi
#main processing
if $encode; then
if ! [ "$aspect" ]; then
getaspect "$1";
fi
encode "$@"
else
for mpg in "$@"; do
mpglist="$mpglist \"$mpg\""
done
fi
if $author; then
author;
else
cleanuplist=""
fi
if $image; then
image ;
else
cleanuplist=""
fi
if $burn; then
burn;
fi
exit 0
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