#!/bin/bash

# usage: $0 [path for resulting file] [files to recode]...
# 

FFMPEG="ffmpeg"

if [ ! -f "$2" ]; then
	echo No valid input file given
	exit 1
fi

if [ ! -d "$1" ]; then
	echo No valid destination path given
	exit 1
fi

OUTPUT_DIR=$1

while [[ $# > 1 ]]; do
	FILE=$2
	TYPE="mp3"
	OUTFILE="$OUTPUT_DIR/$(basename "${FILE%.*}").$TYPE"
	
        echo Recoding $FILE to $OUTFILE
        
        case $TYPE in
          "mp3")
            $FFMPEG -i "$FILE" -map_meta_data "$OUTFILE:$FILE" -y -ab 64000 "$OUTFILE"
            ;;
          "ogg")
            #metadata mapping doesnt work for ogg output for some strange reasons
            $FFMPEG -i "$FILE" -map_meta_data "$OUTFILE:$FILE" -y -acodec libvorbis -ab 32000 "$OUTFILE"
            ;;
        esac
	
	shift
done