if [ "$#" -ne 2 ]; then
    echo "usage tvshow2mkv.sh [path to vdr recording] [path to tvshows]";
    exit 1;
fi

if [ ! -d "$1" ]; then
    echo "vdr recording directory not valid: $1";
    exit 1;
fi

if [ ! -d "$2" ]; then
    echo "movie directory not valid: $2";
    exit 1;
fi

echo "vdr recordings directory: $1";
echo "movie directory: $2";

cd "$1";

echo `pwd`

for j in *.rec; do

    cd $j;
    SHOWNAME=$(sed -n -e 's/^T \(.*\)$/\1/p' info);
    EPISODE=$(sed -n -e 's/^S \(.*\)$/\1/p' info);

    echo "Converting $SHOWNAME - $EPISODE";

    OUTPUT_PATH="$2/$SHOWNAME";
    OUTPUT_MKV_NAME="$EPISODE.mkv";
    OUTPUT_MPG_NAME="$EPISODE.mpg";

    if [ ! -d "$OUTPUT_PATH" ]; then
        echo "creating output path $OUTPUT_PATH";
        mkdir "$OUTPUT_PATH";
    fi

    if [ -f "$OUTPUT_PATH/$OUTPUT_MKV_NAME" ]; then
        echo "Episode $EPISODE already decoded";
        continue;
    elif [ ! -f "$OUTPUT_PATH/$OUTPUT_MPG_NAME" ]; then
        BASENAME=00001;

        echo "projectx -demux 00001.ts -name 00001 -cut marks.bytepos"
        projectx -demux 00001.ts -name 00001 -cut marks.bytepos

        if [ -f "$BASENAME.ac3" ]; then
            echo "mplex -f 8 -o \"$OUTPUT_PATH/$EPISODE.mpg\" $BASENAME.ac3 $BASENAME.mp2 $BASENAME.m2v";
            mplex -f 8 -o "$OUTPUT_PATH/$EPISODE.mpg" $BASENAME.ac3 $BASENAME.mp2 $BASENAME.m2v;
        else
            echo "mplex -f 8 -o \"$OUTPUT_PATH/$EPISODE.mpg\" $BASENAME.mp2 $BASENAME.m2v";
            mplex -f 8 -o "$OUTPUT_PATH/$EPISODE.mpg" $BASENAME.mp2 $BASENAME.m2v;
        fi
    fi

    echo "converting to mkv";
    ffmpeg -i "$OUTPUT_PATH/$OUTPUT_MPG_NAME" -c:v libx264 -c:a aac "$OUTPUT_PATH/$OUTPUT_MKV_NAME"

    cd ..;
done;