#!/bin/bash

# default = 3.
OGG_QUALITY="4"
OGGENC_OPTS="-q ${OGG_QUALITY}"
METAFLAC="metaflac"

print_usage()
{
    echo "$(basename $0) -- Translates FLAC file to OGG."
    echo "Usage: $(basename $0) flac-file"
}

if [ $# = 0 ]; then
    print_usage
    exit 1
fi

a=${1}

# Checking if input file exist.
if [ ! -f $1 ]; then
    echo "$0: File $a not found."
    print_usage
    exit 1
fi

OUTF=`echo "$a" | sed s/\.flac$/.ogg/g`

ARTIST=`${METAFLAC} "$a" --show-tag=ARTIST | sed s/.*=//g`
TITLE=`${METAFLAC} "$a" --show-tag=TITLE | sed s/.*=//g`
ALBUM=`${METAFLAC} "$a" --show-tag=ALBUM | sed s/.*=//g`
GENRE=`${METAFLAC} "$a" --show-tag=GENRE | sed s/.*=//g`
TRACKNUMBER=`${METAFLAC} "$a" --show-tag=TRACKNUMBER | sed s/.*=//g`
DATE=`${METAFLAC} "$a" --show-tag=DATE | sed s/.*=//g`

flac -c -d "$a" | oggenc ${OGGENC_OPTS} \
    -t "$TITLE" \
    -N "${TRACKNUMBER:-0}" \
    -a "$ARTIST" \
    -l "$ALBUM" \
    -d "$DATE" \
    -G "${GENRE:-12}" \
    -o "$OUTF" -