#!/bin/bash
#
# $1 dvd device
# $2 output file (avi)
# $3 bitrate
# $4 chapter
 
# autodetect cropping
mplayer -ao null -dvd-device $1 -vf cropdetect,spp,scale -frames 120 dvd://$4 > cropdetect
CROP=`tail -n 10 cropdetect | head -n 1 | awk -F"=" '{print $2}' | awk -F")" '{print $1}' | awk -F":" '{print $1-$1%16 ":" $2-$2%16 ":" $3+($1%16-$1%4)/2 ":"
 $4+($2%16-$2%4)/2 }'`
echo $CROP
rm -f cropdetect
 
# first pass
touch first-pass
mencoder -dvd-device $1 dvd://$4 -aid 128 -vf pullup,softskip,crop=$CROP,hqdn3d=2:1:2,harddup -ofps 24000/1001 -oac copy -ovc x264 -x264encopts bitrate=$3:pa
ss=1:subq=1:bframes=3:frameref=1:turbo=1 -o $2.avi -passlogfile $2.divx.log
rm first-pass
 
# second pass
#echo touch second-pass
#echo mencoder -dvd-device $1 dvd://$4 -aid 128 -vf pullup,softskip,crop=$CROP,hqdn3d=2:1:2,harddup -ofps 24000/1001 -oac copy -ovc x264 -x264encopts bitrate
=$3:pass=3:subq=6:4x4mv:me=3:frameref=5:bframes=3:b_pyramid:weight_b -o $2.avi -passlogfile $2.divx.log
#echo rm second-pass
 
#third pass
touch third-pass
mencoder -dvd-device $1 dvd://$4 -aid 128 -vf pullup,softskip,crop=$CROP,hqdn3d=2:1:2,harddup -ofps 24000/1001 -oac copy -ovc x264 -x264encopts bitrate=$3:pa
ss=3:subq=6:4x4mv:me=3:frameref=5:bframes=3:b_pyramid:weight_b -o $2.avi -passlogfile $2.divx.log
rm third-pass
 
# get video
mencoder $2.avi -ovc copy -oac copy -of rawvideo -o $2.264
#mencoder $2.avi -ovc copy -nosound -of rawvideo -o $2.264
 
# get audio into FAAC
mkfifo audiodump.pcm
#faac -q 100 -P -R 48000 -C 2 -X audiodump.pcm -o $2-a.mp4 & mplayer $2.avi -vc dummy -vo null -ao pcm:nowaveheader -channels 2 > /dev/null # stereo
faac -q 100 -I 5,6 -P -R 48000 -C 6 -X audiodump.pcm -o $2-a.mp4 & mplayer $2.avi -vc dummy -vo null -ao pcm:nowaveheader -channels 6 > /dev/null # 5 channel
rm audiodump.pcm
 
# AC3
mencoder $2.avi -of rawaudio -ovc copy -oac copy -o $2.ac3
 
# OGG
#echo oggenc -q 10 $2.ac3
 
# MUX Into Containers
MP4Box -fps 23.97602398 -add $2.264 $2-v.mp4
mkvmerge -o $2.mkv $2-v.mp4 $2.ac3
#echo mkvmerge -o $2.mkv -2-v.mp4 $2.ogg
cp $2-v.mp4 $2.mp4
MP4Box -add $2-a.mp4 $2.mp4