song db generation tool embryo

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5269 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 93 insertions, 0 deletions

diff --git a/tools/songdb.pl b/tools/songdb.pl
new file mode 100755
index 0000000..64bce44
--- /dev/null
+++ b/tools/songdb.pl
@@ -0,0 +1,93 @@
+#!/usr/bin/perl
+
+# Very sparse docs:
+# http://search.cpan.org/~cnandor/MP3-Info-1.02/Info.pm
+
+# MP3::Info is installed on debian using package 'libmp3-info-perl'
+
+use MP3::Info;
+
+my $dir = $ARGV[0];
+
+if(! -d $dir) {
+    print "given argument is not a directory!\n";
+    exit;
+}
+
+# return ALL directory entries in the given dir
+sub getdir {
+    my ($dir) = @_;
+
+    opendir(DIR, $dir) || die "can't opendir $dir: $!";
+    #   my @mp3 = grep { /\.mp3$/ && -f "$dir/$_" } readdir(DIR);
+    my @all = readdir(DIR);
+    closedir DIR;
+    return @all;
+}
+
+sub extractmp3 {
+    my ($dir, @files) = @_;
+    my @mp3;
+    for(@files) {
+        if( /\.mp3$/ && -f "$dir/$_" ) {
+            push @mp3, $_;
+        }
+    }
+    return @mp3;
+}
+
+sub extractdirs {
+    my ($dir, @files) = @_;
+    my @dirs;
+    for(@files) {
+        if( -d "$dir/$_" && ($_ !~ /^\.(|\.)$/)) {
+            push @dirs, $_;
+        }
+    }
+    return @dirs;
+}
+
+sub singlefile {
+    my ($file) = @_;
+
+#    print "Check $file\n";
+
+    my $hash = get_mp3tag($file);
+  #  my $hash = get_mp3info($file);
+
+#    for(keys %$hash) {
+#        print "Info: $_ ".$hash->{$_}."\n";
+#    }
+
+    return $hash; # a hash reference
+}
+
+sub dodir {
+    my ($dir)=@_;
+
+    # getdir() returns all entries in the given dir
+    my @a = getdir($dir);
+
+    # extractmp3 filters out only the mp3 files from all given entries
+    my @m = extractmp3($dir, @a);
+
+    my $f;
+
+    for $f (sort @m) {
+        
+        my $id3 = singlefile("$dir/$f");
+
+        printf "Artist: %s\n", $id3->{'ARTIST'};
+    }
+
+    # extractdirs filters out only subdirectories from all given entries
+    my @d = extractdirs($dir, @a);
+
+    for $d (sort @d) {
+        print "Subdir: $d\n";
+        dodir("$dir/$d");
+    }
+}
+
+
+dodir($dir);