mpv/TOOLS/divx2svcd

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#!/bin/bash
# (c) 2003 Vajna Miklos <mainroot@freemail.hu>
# divx2svcd for MPlayer
# distributed under GPL License
# simple utility that creates a SVCD from a video in an AVI container
# The newest version of this utility can be found at
# http://vmiklos.uw.hu/divx2svcd/divx2svcd
# MPlayer available at
# http://www.mplayerhq.hu/MPlayer/releases/MPlayer-1.0pre3try2.tar.bz2
###changelog###
#nobody cares about it :-)
cat >/dev/null <<EOF
0.5.1
- faster code by not re-mplexing one-cd-size or smaller videos
0.5.0
- needless for dumpvideo patch ;-)
0.4.9
- changed default bitrate to 1600 for better quality
- fix for burning more than one cd
- fix for wrong parameter help
0.4.8
- small fixes
0.4.7
- fixed bug, when there is no sub available
0.4.6
- support for burning the svcd with cdrecord
- lots of paranoid options for better quality from Denes Balatoni
0.4.5
- support for filenames including spaces
0.4.4
- support for checking all applications this script uses
- this changelog
0.4.3
- advanced detectation of movie aspect (mpeg4 codec, mpeg container)
0.4.2
- advanced vf options for movies with non-standard aspect
0.4.1
- checking for available sub
0.4.0
- support for tcmplex-panteltje
- support for libavcodec audio encoder
0.3.1-0.3.2
- small fixes
0.3
- almost totally rewritten from scratch
based on the idea of Denes Balatoni <pnis@coder.hu>
- support for toolame instead of mp2enc
- suppert for libavcodec mpeg2video codec instead of mpeg2enc
0.2
- support for tcmplex instead of mplex
0.1rc2-rc4
- small bugfixes
0.1rc1
- initial release
EOF
###preparing###
#help
function usage()
{
cat <<EOF
Usage: `basename $0` input_avi [options]
Options:
-b|--bitrate xx bitrate of mp2 video stream [1375]
-s|--cdsize xx size of the cd we split the video to [795]
-w|--writecd enables burning [disable]
-d|--device xx scsi cd-recording device if you are using linux 2.4.x [0,0,0]
-c|--clean clean up svcd images you just created
-h|--help this help screen
EOF
}
#initializating constants
version='0.5.1'
bitrate=1375
cdsize=795
burning=0
cleaning=0
dev4='0,0,0'
firstcd=1
#paranoid options
paraopts='vrc_override=1,10,708:vqcomp=0.1:vratetol=10000000:vrc_buf_size=917:vrc_maxrate=2500:intra_matrix=8,9,12,22,26,27,29,34,9,10,14,26,27,29,34,37,12,14,18,27,29,34,37,38,22,26,27,31,36,37,38,40,26,27,29,36,39,38,40,48,27,29,34,37,38,40,48,58,29,34,37,38,40,48,58,69,34,37,38,40,48,58,69,79:inter_matrix=16,18,20,22,24,26,28,30,18,20,22,24,26,28,30,32,20,22,24,26,28,30,32,34,22,24,26,30,32,32,34,36,24,26,28,32,34,34,36,38,26,28,30,32,34,36,38,40,28,30,32,34,36,38,42,42,30,32,34,36,38,40,42,44'
#header
echo "DivX2SvcD $version (C) 2003-2004 Vajna Miklos"
echo
#checking for ls
ls=`which ls`
#checking for bc
which bc >/dev/null 2>&1
bcbin=`which bc 2>/dev/null`
if [ $? != 0 ]; then
cat <<EOF
ERROR: Can't find bc. You can download it at
ftp://ftp.ibiblio.org/pub/gnu/bc/bc-1.06.tar.gz
EOF
exit 1
fi
#checking for vcdimager
which vcdimager >/dev/null 2>&1
bcbin=`which vcdimager 2>/dev/null`
if [ $? != 0 ]; then
cat <<EOF
ERROR: Can't find vcdimager. You can download it at http://www.vcdimager.org
/pub/vcdimager/vcdimager-0.7_UNSTABLE/vcdimager-0.7.14.tar.gz
EOF
exit 1
fi
#checking which mplex utility we have to use
which tcmplex-panteltje >/dev/null 2>&1
if [ $? = 0 ]; then
tcp_path=`which tcmplex-panteltje 2>&1`
else
tcp_path="x"
fi
which tcmplex >/dev/null 2>&1
if [ $? = 0 ]; then
tc_path=`which tcmplex 2>&1`
else
tc_path="x"
fi
if [ -x $tcp_path ]; then
tcbin=tcmplex-panteltje
tcopt=-0
elif [ -x $tc_path ]; then
tcbin=tcmplex
tcopt=-p
else
cat <<EOF
ERROR: Can't find any sutable mplex utility. You can download
tcmplex-panteltje at http://sunsite.rediris.es/
sites2/ibiblio.org/linux/apps/video/tcmplex-panteltje-0.3.tgz
EOF
exit 1
fi
#pharsing parameters
if [ $# -le 0 ]; then
echo "Missing parameter!"
usage
exit 1
fi
case $1 in
-h)
usage
exit 1
;;
-*)
echo "Missing parameter!"
usage
exit 1
;;
*)
input=`echo $1 |sed 's/\\ / /'`
if [ "$input" == "`basename "$input"`" ]; then
input="`pwd`/$1"
fi
nev=`basename "$input" .avi`
shift 1
;;
esac
while [ "$1"x != "x" ]; do
case $1 in
-b|--bitrate)
bitrate=$2
shift 1
;;
-s|--cdsize)
cdsize="$2"
shift 1
;;
-d|--device)
dev4="$2"
shift 1
;;
-w|--write)
burning=1
;;
-c|--clean)
cleaning=1
;;
-h|--help)
usage
exit 0
;;
esac
shift 1
done
#checking for cd-recording device
if [ "$burning" == 1 ]; then
echo -n "Searching for cdrecorder device... "
if [ `uname -r |cut -d '.' -f 2` == 4 ]; then
#linux 2.4.x
dev="dev=$dev4"
echo "$dev4"
elif [ `uname -r |cut -d '.' -f 2` == 6 ]; then
#linux 2.6.x
if [ -e /dev/cdrecorder ]; then
dev='dev=/dev/cdrecorder'
echo "/dev/cdrecorder"
else
cat <<EOF
ERROR: Device file /dev/cdrecorder not found. Please link your
cd-recording device to /dev/cdrecorder!
Example: 'cd /dev; ln -s hdc cdrecorder'
EOF
exit 1
fi
else
cat <<EOF
ERROR: Linux 2.4 or 2.6 series not found. You can download it at
http://www.kernel.org/ ;-)
EOF
exit 1
fi
#checking for cdrecord
which cdrecord >/dev/null 2>&1
cdrbin=`which cdrecord 2>/dev/null`
if [ $? != 0 ]; then
cat <<EOF
ERROR: Can't find cdrecord. You can download it at
ftp://ftp.berlios.de/pub/cdrecord/alpha/cdrtools-2.01a20.tar.gz
EOF
exit 1
else #checking for version >= 2.01a14
echo -n "Checking for cdrecord version >= 2.01a14... "
$cdrbin cuefile=a 2>&1 |grep 'Bad Option' >/dev/null 2>&1
if [ "$?" == 0 ]; then
cat <<EOF
ERROR: Can't find cdrecord version >= 2.01a14. You can download it at
ftp://ftp.berlios.de/pub/cdrecord/alpha/cdrtools-2.01a20.tar.gz
EOF
else
echo "`$cdrbin -version |cut -d ' ' -f 2`"
fi
fi
fi
#checking for sub avariable
if [ -f "$nev.sub" ]; then
subopts=$nev.sub
else
subopts=''
fi
if [ "x$subopts" == "x" ]; then
subs=''
else
subs='-sub '
fi
#checking for what height needed
inputwidth=`mplayer -vo null -ao null "$input" -frames 1 2>/dev/null |grep '=>'|cut -d ' ' -f 5|cut -d x -f 1`
inputheight=`mplayer -vo null -ao null "$input" -frames 1 2>/dev/null |grep '=>'|cut -d ' ' -f 5|cut -d x -f 2`
svcdaspect=`echo -e "scale=10\n1.596/($inputwidth/$inputheight)"|bc /dev/stdin`
height=`echo -e "scale=10\n$svcdaspect*480"|bc /dev/stdin|cut -d . -f 1`
#checking for ratios less than 1.33
istoohigh=`expr $height \> 577`
if [ "$istoohigh" = 1 ]; then
height=576
fi
#find out the vf options
if [ "$height" = 576 ]; then
vfopts='-vf scale=480:576'
else
#-vf processes filters in reverse order
exy=`echo -e "scale=10\n(576-$height)/2"|bc /dev/stdin|cut -d . -f 1`
vfopts="-vf scale=480:$height,expand=480:576:0:$exy:1"
echo "Using filter options: '$vfopts'"
fi
#finish displaying informations
if [ "$burning" == 1 ]; then
#asking for cd
cat <<EOF
Please insert a blank cd in your cdwriter.
(If you are using a rewritable media,
don't forgot to blank it before using divx2svcd.)
Press any key when your are ready.
EOF
read -n 1 i
fi
###start working###
#encoding
mencoder -ofps 25 -oac lavc "$input" -ovc lavc -lavcopts vcodec=mpeg2video:vbitrate=$bitrate:acodec=mp2:abitrate=128:keyint=25:aspect=4/3:$paraopts -o "${nev}2.avi" -srate 44100 -of mpeg -channels 2 $vfopts $subs "$subopts"
videosize=`$ls -l "${nev}2.avi"|tr -s ' '|cut -d ' ' -f5`
if ! [ `echo $(( $cdsize*1048576 < $videosize ))` == "1" ]; then
#video is smaller, than $cdsize
mv ${nev}2.avi ${nev}00.mpg
else
#splitting
mplayer -dumpvideo -dumpfile "$nev.m2v" "${nev}2.avi"
mplayer -dumpaudio -dumpfile "$nev.mp2" "${nev}2.avi"
rm "${nev}2.avi"
echo "maxFileSize = $cdsize" > template
$tcbin -i "$nev.m2v" $tcopt "$nev.mp2" -o "$nev.mpg" -m s -F template
rm template
rm "$nev.m2v" "$nev.mp2"
fi
for i in *mpg
do
nev2=`basename "$i" .mpg`
#creating images
vcdimager -t svcd -c "$nev2.cue" -b "$nev2.bin" "$i"
#burning if needs
if [ "$burning" == 1 ]; then
if [ "$firstcd" != 1 ]; then
cat <<EOF
Please insert an another blank cd in your cdwriter.
Press any key when your are ready.
EOF
read -n 1 i
else
firstcd=2
fi
$cdrbin -v -dao $dev speed=12 gracetime=2 driveropts=burnfree -eject cuefile="$nev2.cue"
fi
#cleaning if needs
if [ "$cleaning" == 1 ]; then
rm -f "$nev2.cue" "$nev2.bin"
fi
done
rm -f "$nev"*mpg