#!/usr/bin/env nix-shell
#! nix-shell -i bash -p ffmpeg sox
IFS=$'\n'
for i in $(ls *$3)
do
    if [ $1 = "320" ]; then
	    ffmpeg -i "$i" -codec:a libmp3lame -b:a 320k -map_metadata 0 -id3v2_version 3 "$2/${i%.$3}".mp3
    elif [ $1 = "v0" ]; then
	    ffmpeg -i "$i" -codec:a libmp3lame -q:a 0 -map_metadata 0 -id3v2_version 3 "$2/${i%.$3}".mp3
    elif [ $1 = "alactoflac" ]; then
	    ffmpeg -i "$i" -codec:a flac -map_metadata 0 -id3v2_version 3 "$2/${i%.$3}".flac
    else
	    sox "$i" -G -b 16 "$2/${i%.$3}".flac rate -v -L 48000 dither
    fi
    echo $i
done