#!/bin/bash

if [ -z "$1" -o -z "$2" ]; then
    echo "Usage: $0 --bluray-device|--dvd-device SOMEDIRECTORY"
    exit 1
fi

device_param="$1"
device_path="$2"
if [ "$device_param" = "--bluray-device" ]; then
    device_param="-bluray-device"
    device_scheme="bluray"
elif [ "$device_param" = "--dvd-device" ]; then
    device_param="-dvd-device"
    device_scheme="dvd"
else
    echo "Unknown device type: $device_param"
    exit 1
fi

mplayer 2> /dev/null \
    -noconfig all \
    -quiet \
    -ao null \
    -vo null \
    -frames 0 \
    -identify \
    "$device_param" "$device_path" \
    "${device_scheme}://" | \
    sed -e 's/ID_\(DVD\|BLURAY\)_TITLE_\([0-9]*\)*_LENGTH=\(.*\)$/\2	\3/;tx;d;:x' | \
    sort -n