#!/bin/bash
if [ "$1" = "" ]
then
	echo "usage: iPod-EncDir input_directory"
	exit 0
fi

VBITR=960
ABITR=224
VWIDTH=512
HASPR=16
VASPR=9
VHIGHT=$(echo "$VWIDTH/$HASPR*$VASPR" | bc)
CROPT=0
CROPB=0
echo video bitrate: $VBITR
echo audio bitrate: $ABITR
echo video size: "$VWIDTH"x"$VHIGHT"
echo aspect ratio: $HASPR:$VASPR
echo unscaled crop "(top)": $CROPT
echo unscaled crop "(bottom)": $CROPB

for i in $( ls "$1" ); do
        IFILE="$1""$i"
        OFILE="$i".mp4

ffmpeg -an -pass 1 -i "$IFILE" -deinterlace -croptop "$CROPT" -cropbottom "$CROPB" -s "$VWIDTH"x"$VHIGHT" -aspect "$HASPR":"$VASPR" -vcodec h264 -flags +loop -cmp +chroma -partitions +parti4x4+partp4x4+partp8x8+partb8x8 -subq 7 -trellis 2 -refs 5 -coder 0 -me_range 24 -g 300 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b "$VBITR"k -minrate 100k -maxrate 2M -bufsize 10M -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 "$OFILE" && rm "$OFILE"

ffmpeg -i "$IFILE" -acodec aac -ab "$ABITR" -ar 48000 -pass 2 -deinterlace -croptop "$CROPT" -cropbottom "$CROPB" -s "$VWIDTH"x"$VHIGHT" -aspect "$HASPR":"$VASPR" -vcodec h264 -flags +loop -cmp +chroma -partitions +parti4x4+partp4x4+partp8x8+partb8x8 -subq 7 -trellis 2 -refs 5 -coder 0 -me_range 24 -g 300 -keyint_min 25 -sc_threshold 40 -i_qfactor 0.71 -b "$VBITR"k -minrate 100k -maxrate 2M -bufsize 10M -rc_eq 'blurCplx^(1-qComp)' -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 "$OFILE" && AtomicParsley "$OFILE" --DeepScan --iPod-uuid 1200 --overWrite && cp "$OFILE" /network/valeo/gjb/Movies/encoding/mp4 && rm "$OFILE" ffmpeg2pass-0.log x264_2pass.log

done