#!/bin/bash
#
# Date:    2009-11-30
# Author:  Ole Kristian Lien
# License: GNU General Public License
#
# Cut video from x to y (seconds or hh:mm:ss).
# Default duration, is the rest of the video.

EXT=`echo "$1"|awk -F . '{print $NF}'`
NAME=`basename $1 .$EXT`

if [ -z "$3" ]; then
	echo "Usage: $0 <video-file> <new-video-file> <start-pos> [<duration>]"
	exit 1
fi

if [ -z "$4" ]; then
	DURATION=`./duration $1`
	ffmpeg -i $1 -ss $3 -t $DURATION -vcodec copy -acodec copy $NAME-new.$EXT
else
	ffmpeg -i $1 -ss $3 -t $4 -vcodec copy -acodec copy $NAME-new.$EXT
fi