mkipod

#!/bin/bash

. mp4tools

VQ=${3:-24}
X264OPTS='nocabac:level_idc=13:ref=3:me=umh:subq=7:trellis=1'
TWIDTH=320
THEIGHT=240

[ "$#" -lt 1 ] && exec echo "usage: $0 <file> [outfile] [bitrate]"

OUTFILE="${1%.*}.m4v"
[ "$#" -gt 1 ] && OUTFILE="$2"

analyse "$1"
scaleres $WIDTH $HEIGHT $TWIDTH $THEIGHT

if [ $HAS_AUDIO ]
then
	audiorip "$1" /tmp/audio.$$.wav lavcresample=44100 || clean_tmp

	normalize /tmp/audio.$$.wav || clean_tmp

	if [ -z $HAS_VIDEO ]
	then
		OUTFILE="${OUTFILE%.*}.m4a"
		AQ='0.2'
		green "Audio only file, increasing quality a bit and saving to $OUTFILE"
	fi
	aacenc /tmp/audio.$$.wav /tmp/audio.$$.aac $AQ || clean_tmp
	rm -f /tmp/audio.$$.wav
fi

if [ $HAS_VIDEO ]
then
	h264enc "$1" /tmp/video.$$.264 $X264OPTS $VQ || clean_tmp
fi

MP4BOX_OPTS='-ipod'
avmux "$OUTFILE" || clean_tmp

clean_tmp 0