#! /usr/bin/perl

##########################################
# flac/shorten to ogg vorbis converter
# stuff needed to run: shntool, vorbis-tools, flac
# USE: "perl flac2ogg.pl"
###########################################
# copyright (c) 2004 stateq2
# flac2ogg is released under the GPL.
# http://www.gnu.org/copyleft/gpl.html
############################################
# version 0.4
###########################################
# to do:
# have vorbis files outputted in same dir style as originals
############################################
use File::Find;

print "enter the dir containing .shn/.flac files to be converted: ";
chop ($src_dir=<STDIN>);
print "\nenter the dir where you want the output(ogg's) to go: ";
chop ($out_dir=<STDIN>);
print "\nchoose a quality setting for the ogg vorbis files...\n";
print "(6 is a good choice for great quality and moderate filesize)\n\n";
print "0 ~= 64kbps | 5 ~= 160kbps | 10 ~= 400kbps\n";
print "choose(0-10): ";
chop ($ogg_qual=<STDIN>);
print "\n";

find(\&files, $src_dir);

sub files {
	
	$orig_file=$_;

	if (($orig_file !~ /\.flac$/i) && ($orig_file !~ /\.shn$/i)) {next};
	print "Checking file: $orig_file\n";

# if the file is .flac, convert it to .ogg
	if ($orig_file =~ /\.flac$/i) {
		$new_ogg_file=$orig_file;$new_ogg_file=~s/\.flac/\.ogg/;
		$flac_to_ogg=`oggenc -q$ogg_qual \"$File::Find::dir/$orig_file\" -o $out_dir/$new_ogg_file`;
		print "1. FLAC-->OGG VORBIS: $flac_to_ogg\n";
		$cmd=`$flac_to_ogg`;
		print "\n\n";
	}

# else, if the file is .shn, conver it to .wav, convert .wav to .ogg, then delete wav
	elsif ($orig_file =~ /\.shn$/i) {
		$new_wav_file=$orig_file;$new_wav_file=~s/\.shn/\.wav/;
		$convert_to_wav=`find $File::Find::dir -iname "$orig_file" | shntool conv -o wav -d $out_dir`;
		print "1. SHN-->WAV: $convert_to_wav\n";
		$cmd=`$convert_to_wav`;
		if ($new_wav_file !~ /\.wav$/i) {next};
		$new_ogg_file=$new_wav_file;$new_ogg_file=~s/\.wav/\.ogg/;
		$wav_to_ogg="oggenc -q$ogg_qual \"$out_dir/$new_wav_file\"";
		$remove_wav="rm -rf \"$out_dir/$new_wav_file\"";
		print "2. WAV-->OGG VORBIS: $wav_to_ogg\n";
		$cmd=`$wav_to_ogg`;
		print "DELETE WAV: $remove_wav\n";
		$cmd=`$remove_wav`;
		print "\n\n";
	}
}

print "flac2ogg is done\n"