mpv/TOOLS/qepdvcd.sh

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#!/bin/bash
#
# QEPDVCD
#
# Most of this stuff comes straight from MPlayer documentation.
# Options are limited only to a small useful subset, if you
# want more control, RTFM and DIY.
#
# Version: 0.1
#
# Licence: GPL
#
# Author: Reynaldo H. Verdejo Pinochet <reynaldo@opendot.cl>
#
# Script: MPlayer Sources. Anything supported to vcd/svcd pal/ntsc
#
# requires: mencoder
#
# sugests: vcdimager / cdrecord
#
# Thanks to: Carlos Navarro Salas - name author ;)
#
#
# Defaults
MYNAME=`basename $0`
TARGET="svcd"
ENCQ="2"
ABPS="224"
VBPS="2000"
NORM="NTSC"
SPLIT="0"
TOLERANCE="85"
OUTNAME="mencodedvcd"
SUBFILENAME=0
EDLFILENAME="pass.edl"
HAVESUB=0
WORKDIR="."
RATIOX=4
RATIOY=3
OPTIONS="INPUTFILENAME TARGET ENCQ ABPS VBPS NORM SPLIT TOLERANCE OUTNAME"
function usage()
{
echo ""
echo "usage $MYNAME inputfile [options]"
echo ""
echo "Options: [Default value]"
echo ""
echo "-t Target svcd|vcd [svcd]"
echo "-q Encoding quality 0|1|2 [2]"
echo "-a Audio bitrate in kbps [224]"
echo "-v Video bitrate in kbps [2000 For SVCD, 1150 For VCD]"
echo "-n Norm NTSC|PAL [NTSC]"
echo "-d Divide/split movie at given times time1:time2:... [no split]"
echo "-s Shitty TV screen tolerance %, afects subtitle positioning [85]"
echo "-u Subtitle file name [No subtitle]"
echo "-o Output basename [mencodedvcd]"
echo ""
echo "In case you want to use -a/-v please read:"
echo "http://www.mplayerhq.hu/DOCS/HTML/en/menc-feat-vcd-dvd.html"
echo ""
}
function test_needed()
{
for i in mencoder; do
if [ -z "`which $i`" ]; then
echo "[ERROR] mencoder not found in $PATH!"
exit 1
fi
done
}
function test_sugested()
{
for i in vcdimager cdrecord; do
if [ -z "`which $i`" ]; then
echo "[WARNING] $i not found in $PATH!"
echo "You'll likely need it after we finish."
exit 1
fi
done
}
test_needed
test_sugested
if [ $# -lt 1 ]; then
echo ""
echo "[ERROR] Input filename parameter is mandatory."
echo ""
usage
exit 1
fi
case $1 in
-*)
usage
exit 1
;;
*)
INPUTFILENAME=$1
shift 1
;;
esac
while [ "$1"x != "x" ]; do
case $1 in
-t)
TARGET=$2
shift 1
;;
-q)
ENCQ=$2
shift 1
;;
-a)
ABPS=$2
shift 1
;;
-v)
VBPS=$2
shift 1
;;
-n)
NORM=$2
shift 1
;;
-d)
SPLIT=$2
shift 1
;;
-s)
TOLERANCE=$2
shift 1
;;
-u)
SUBFILENAME="$2"
HAVESUB=1
shift 1
;;
-o)
OUTNAME=$2
shift 1
;;
esac
shift 1
done
echo ""
echo "[STATUS] Will re-encode using the following parameters:"
echo ""
for i in $OPTIONS ; do
echo "$i ${!i}";
done
# Parameter Sanity Check ###########################################
# We need to check supplied params against known format constraints
####################################################################
if [ $TARGET = "svcd" ]; then
if [ $ABPS -gt 384 ]; then
echo "[ERROR] SVCD maximum abitrate is 384kbps."
exit 1
fi
if [ $VBPS -gt 2600 ]; then
echo "[ERROR] SVCD maximum vbitrate is 2600kbps."
exit 1
fi
else [ $TARGET = "vcd" ]
if [ $ABPS -eq 224 ]; then
echo "[ERROR] VCD abitrate must be 224kbps."
exit 1
fi
if [ $VBPS -gt 1150 ]; then
echo "[ERROR] VCD maximum vbitrate is 1150kbps."
exit 1
fi
fi
# Set encoding options ##############################################
if [ $TARGET = "svcd" ]; then
FORMAT="xsvcd"
VCODEC="mpeg2video"
VRCMINRATE=4
VRCMAXRATE=2500
VRCBUFSIZE=917
if [ $NORM = "NTSC" ]; then
SCALEX=480
SCALEY=480
KEYINT=18
OFPS="24000/1001"
TELECINE=":telecine"
else [ $NORM = "PAL" ]
SCALEX=480
SCALEY=576
KEYINT=15
OFPS=25
fi
else [ $TARGET = "vcd" ]
FORMAT="xvcd"
VCODEC="mpeg1video"
VRCMINRATE=$VBPS
VRCMAXRATE=$VBPS
VRCBUFSIZE=327
if [ $NORM = "NTSC" ]; then
SCALEX=352
SCALEY=240
KEYINT=18
OFPS="24000/1001"
else [ $NORM = "PAL" ]
SCALEX=352
SCALEY=288
KEYINT=15
OFPS=25
fi
fi
# Start reencoding ###################################################
cd $WORKDIR
if [ $(($HAVESUB+1)) -eq 1 ]; then
SUBTITLESTRING="/dev/null"
else
SUBTITLESTRING="$SUBFILENAME"
fi
if [ $SPLIT == "0" ]; then
CICLES=0
TIMESTRING=""
else
if [ -e $EDLFILENAME ]; then
echo "[ERROR]"
echo "The -d option needs to generate a temporary file called"
echo "$EDLFILENAME. You already have one in this directory,"
echo "please remove/rename it and run $MYNAME again."
echo ""
exit 1
else
EDLSTRING=$(echo $SPLIT | sed -e s/:/' '/g)
EDLARRAY=($EDLSTRING)
CICLES=$(echo $EDLSTRING | wc -w)
TIMESTRING="-edl $EDLFILENAME -hr-edl-seek"
fi
fi
for j in $(seq 0 $CICLES); do
NEWNAME=$OUTNAME"_PART"$j".mpg"
echo ""
echo "Making $NEWNAME, wish me luck ;-)"
echo ""
# Create EDLFILENAME #################################################
if [ $CICLES -ge 1 ]; then
for i in $(seq 0 $CICLES)
do
if [ $i -eq $j ]; then
if [ $j -ne 0 ]; then
echo "0 ${EDLARRAY[$(($i-1))]} 0" > $EDLFILENAME
fi
if [ $i -ne $CICLES ]; then
echo "${EDLARRAY[$(($i))]} 999999 0" >> $EDLFILENAME
fi
fi
done
fi
# Mencoder Time ;-) ###################################################
mencoder \
-ovc lavc -oac lavc -vf expand=:::::$RATIOX/$RATIOY:1,scale=$SCALEX:$SCALEY,harddup \
-srate 44100 -af lavcresample=44100 -lavcopts acodec=mp2:abitrate=$ABPS:vcodec=$VCODEC:\
vbitrate=$VBPS:keyint=$KEYINT:mbd=$ENCQ:vrc_buf_size=$VRCBUFSIZE:vrc_maxrate=$VRCMAXRATE:\
vrc_minrate=$VRCMINRATE:vi_qfactor=0.1:vi_qoffset=1.5:aspect=$RATIOX/$RATIOY -of mpeg \
-mpegopts format=$FORMAT$TELECINE -sub $SUBTITLESTRING -subpos $TOLERANCE -subwidth \
$TOLERANCE -ofps $OFPS $TIMESTRING -o $NEWNAME $INPUTFILENAME
echo "Encoding of $NEWNAME finished."
echo "Run vcdimager -t svcd/vcd $NEWNAME and burn with cdrecord."
done
echo "$(($CICLES+1)) VCD/SVCD file(s) created!!!"
echo "Happy to be of some help ;-) have fun."
exit 0