#!/bin/sh

if [ "$#" -ne "5" ]
then
        echo ""
        echo "Usage: encode-x264.sh [video bitrate] [video width] [video height] infile outfile"
        echo ""
        exit 1
fi


#echo "Audio bitrate: $1"
#if [ "$1" -lt "32" ]
#then
#        echo "Audio bitrate too low! Value must be between 32 and 320 (kbit)."
#        exit 1
#fi

#if [ "$1" -gt "320" ]
#then
#        echo "Audio bitrate too high! Value must be between 32 and 320 (kbit)."
#        exit 1
#fi

echo "Video bitrate: $1"
if [ "$1" -lt "100" ]
then
        echo "Video bitrate too low! Value must be 100 or higher (kbit)."
        exit 1
fi

echo "Video width: $2"
if [ "$2" -lt "320" ]
then
        echo "Video width too low! Value must be 320 or higher."
        exit 1
fi

echo "Video height: $3"
if [ "$3" -lt "180" ]
then
        echo "Video height too low! Value must be 180 or higher."
        exit 1
fi

echo "Input video: $4"
echo "Output video: $5"

echo "Passing parameters to mencoder and starting encoding."

rm divx2pass*.log

mencoder -vf lavcdeint,scale="$2":"$3",harddup -ovc x264 -x264encopts subq=5:8x8dct:frameref=2:bframes=3:b_pyramid:weight_b:bitrate="$1":pass=1 -oac copy -o "$5" "$4"
mencoder -vf lavcdeint,scale="$2":"$3",harddup -ovc x264 -x264encopts subq=5:8x8dct:frameref=2:bframes=3:b_pyramid:weight_b:bitrate="$1":pass=2 -oac copy -o "$5" "$4"

echo "Encoding finished."
echo "END"