#!/bin/sh
#VBR=96
#VBR=104
VBR=172
ABR=128
AC=2
#FPS=12
[ -n "$FPS" ] && OFPS="-ofps $FPS"
INPUT="$1"
OUTPUT="$2"
shift 2
#VOL=+20
#VOL=+10
#VOL=+4
VOL=0
#VOL=-5
#VOL=-10
#VOL=-20
mencoder "$INPUT" -nosound -ovc lavc -lavcopts vcodec=mpeg4 -vop expand=176:144,scale=176:-2 -o movie.avi $OFPS "$@"
mplayer "$@" -vc null -vo null -ao pcm "$INPUT"
normalize-audio audiodump.wav
ffmpeg -y -i movie.avi -i audiodump.wav -b $VBR -ac $AC -ab $ABR -map 0.0 -map 1.0 -pass 1 "$OUTPUT"
ffmpeg -y -i movie.avi -i audiodump.wav -b $VBR -ac $AC -ab $ABR -map 0.0 -map 1.0 -pass 2 "$OUTPUT"