#!/bin/sh
#
# Version:          0.1.1
#
# Licence:          GPL
#
# 2002/05/11        Jürgen Hammelmann <juergen.hammelmann@gmx.de>
#
# Script:           MPlayer Sources (DVD) to (S)VCD ripping and burning
#
# requires:         newest mplayer cvs version
#                   mjpegtools v1.6 beta
#                   toolame
#                   vcdimager
#                   cdrdao
#
################################################################################
#
# global options section, change them to your needs!

TMPDIR="." # path to directory for creating temporary files, recommended 2-3GB space

CDDRV="generic-mmc" # cdrdao: cdwriter driver
CDDEV="--device 0,1,0" # or comment out and create link /dev/cdrecorder to your cdwriter dev

################################################################################

function usage() {
   echo "usage: $HOWCALLED <filename> [options] [mplayer options]"
   echo
   echo "$HOWCALLED options:"
   echo
   echo "-w       outputs in wide screen format 16:9"
   echo "-abr <n> audio bitrate in kbs [224]"
   echo "-asr <n> audio sample rate in Hz [44100]"
   echo "-blank   cleans cd-rw before burning"
   echo "-burn    enables burning [default]"
   echo "-denoise denoises mpeg stream"
   echo "-noburn  disables burning"
   echo "-mpg     don't encode from source, multiplex/burn only the mpeg stream"
   echo "-vcdout  encode to VCD format [default]"
   echo "-svcdout encode to SVCD format"
   echo
   echo "example:"
   echo "'$HOWCALLED crazy -dvd 3 -w' encodes and burns dvd title 3 to VCD in wide"
   echo "                             screen format."
}

HOWCALLED=`basename $0`
NAME=$1
if [ $# -le 1 ]; then
   usage 
   exit 1
fi
shift 1

cd $TMPDIR
rm -f stream.yuv
rm -f audiodump.pcm
rm -f audiodump.wav
mkfifo -m 660 stream.yuv
mkfifo -m 660 audiodump.pcm
mkfifo -m 660 audiodump.wav

params=""
wide=""
blank=0
burn=1
mkstream=1
abr=224
masr=44100
denoise="cat -"
norm="VCD"
mplexnorm="-f 2 -V"
mpegnorm="-f 2 -b 1152"
imaget="-t vcd2"
while [ "$1"x != "x" ]; do
   case $1 in
      -w)
      	wide="-M WIDE2STD"
	;;
      -abr)
      	abr=$2
	shift 1
	;;
      -asr)
        masr=$2
        shift 1
        ;;
      -blank)
      	blank=1
	;;
      -burn)
      	burn=1
	;;
      -noburn)
        burn=0
	;;
      -mpg)
      	mkstream=0
	;;
      -denoise)
        denoise="yuvdenoise"
        ;;
      -vcdout)
      	norm="VCD"
	mplexnorm="-f 2 -V"
	mpegnorm="-f 2 -b 1152"
	imaget="-t vcd2"
	;;
      -svcdout)
        norm="SVCD"
	mplexnorm="-f 4 -V"
	mpegnorm="-f 4"
	imaget="-t svcd"
	;;
      *)
	params="$params $1"
	;;
   esac
   shift 1
done

if [ -n "$wide" ]; then
   if [ "$norm" == "SVCD" ]; then
      wide=""
      mpegnorm="$mpegnorm -a 3"
   fi
fi

# encode streams
if [ $mkstream -eq 1 ]; then
   # start mplayer
   mplayer -noframedrop -aop list=resample:fout=$masr -vo yuv4mpeg -ao pcm \
      -waveheader $params &

   # mjpegtools / sox
   ($denoise < stream.yuv | \
      yuvscaler -v 0 $wide -O $norm | \
      mpeg2enc -v 0 -s $mpegnorm -g 6 -G 15 -r 16 -o $NAME.mpv) &

   # we have to use toolame, mp2enc don't understand audiodump.wav directly, no RIFF header?!
   (toolame -m s -b $abr audiodump.wav $NAME.mpa) &
   
   # wait for finishing the subprocesses
   wait
fi

# remove pipes
rm -f stream.yuv
rm -f audiodump.pcm
rm -f audiodump.wav

# multiplex streams
[ -f $NAME.mpv -a -f $NAME.mpa ] || exit 1
rm -f $NAME.mpg
mplex $mplexnorm $NAME.mpv $NAME.mpa -o $NAME.mpg

# create cd image
[ -f $NAME.mpg ] || exit 1
rm -f $NAME.cue $NAME.bin
vcdimager $imaget -c $NAME.cue -b $NAME.bin $NAME.mpg

# burn the vcd
[ $burn -eq 0 ] && exit 0
[ -f $NAME.bin -a -f $NAME.cue ] || exit 1

if [ $blank -eq 1 ]; then
   cdrdao blank --reload $CDDEV --driver $CDDRV --blank-mode minimal
fi
cdrdao write --reload $CDDEV --driver $CDDRV $NAME.cue

exit 0