#!/bin/bash
if [ ! "$5" ]
then
    echo 'Use: rawdiff.sh <in 1> <in 2> <width> <height> <fps> [mul] [playback opts]'
    exit 1
fi

I1="$1"
I2="$2"
W="$3"
H="$4"
FPS="$5"
OPTS="$7"

if [ "$6" ]
then
    MUL="$6"
else
    MUL="1"
fi

mkfifo i1 i2 o

# Set up the inputs
mencoder "$I1" -vf format=rgb24 -nosound -ovc raw -of rawvideo -o i1 &
mencoder "$I2" -vf format=rgb24 -nosound -ovc raw -of rawvideo -o i2 &

# And the output
./rawdiff i1 i2 o "$MUL" &

# Then play it
mplayer o -demuxer rawvideo -rawvideo format=rgb24:w="$W":h="$H":fps="$FPS" $OPTS

# And get rid of stragglers
kill %1
kill %2
wait