#!/bin/sh

[ $# != 3 ] && exec echo "usage: $0 part1 part2 output"

if mplayer "$1" -frames 0 -identify -msglevel all=0 |fgrep -q 'ID_DEMUXER=avi'; then
	exec mencoder "$1" "$2" -o "$3" -oac copy -ovc copy
elif mplayer "$1" -frames 0 -identify -msglevel all=0 |fgrep -q 'ID_DEMUXER=lavfpref'; then
	exec mkvmerge -S "$1" -S "+$2" -o "$3"
fi