#!/bin/bash
#
# Calin-Andrei Burloiu, 2010, calin.burloiu@gmail.com
#
# This script cuts .mts video file starting from a seek point  
# with a desired duration. Seek point and duration are expressed in 
# seconds or in the hh:mm:ss[.xx] format.
#

if test $# -ne 4; then
    echo "Usage: $0 mts-input-file mts-output-file seek-point duration"
    exit 1
fi

MTS_IN="$1"
MTS_OUT="$2"
SEEK_POINT="$3"
DURATION="$4"
FFMPEG=/usr/bin/ffmpeg

if test ! -f "$MTS_IN"; then
    echo "Error: No such file $MTS_IN"
    exit 1
fi

"$FFMPEG" -ss "$SEEK_POINT" -t "$DURATION" -i "$MTS_IN" -f mpegts -acodec copy -vcodec copy "$MTS_OUT"