From ddd1adc5bc05303d3a0b9328a16481af97c23323 Mon Sep 17 00:00:00 2001
From: Marius Gavrilescu <marius@ieval.ro>
Date: Sat, 25 Oct 2014 12:38:48 +0300
Subject: [PATCH] Add MP4 support

---
 Makefile.PL          |  1 +
 lib/App/MusicExpo.pm | 32 ++++++++++++++++++++++++++++++--
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/Makefile.PL b/Makefile.PL
index f49ecc6..41dbd89 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -15,6 +15,7 @@ WriteMakefile(
 		   HTML::Template::Compiled      0
 		   Memoize                       0
 		   MP3::Tag                      1.12
+		   MP4::Info                     0
 		   JSON::MaybeXS                 0
 		   DB_File                       0
 		   Ogg::Vorbis::Header::PurePerl 0/,
diff --git a/lib/App/MusicExpo.pm b/lib/App/MusicExpo.pm
index 7b5f4e2..ebee6ef 100644
--- a/lib/App/MusicExpo.pm
+++ b/lib/App/MusicExpo.pm
@@ -10,6 +10,7 @@ use HTML::Template::Compiled qw//;
 use Memoize qw/memoize/;
 use MP3::Tag qw//;
 use Ogg::Vorbis::Header::PurePerl;
+use MP4::Info qw/get_mp4tag get_mp4info/;
 
 use DB_File qw//;
 use File::Basename qw/fileparse/;
@@ -93,6 +94,32 @@ sub vorbisinfo{
 	}
 }
 
+sub mp4_format ($){
+	my $encoding = $_[0];
+	return 'AAC' if $encoding eq 'mp4a';
+	return 'ALAC' if $encoding eq 'alac';
+	"MP4-$encoding"
+}
+
+sub mp4info{
+	my $file=$_[0];
+	my %tag = %{get_mp4tag $file};
+	my %info = %{get_mp4info $file};
+	$file = scalar fileparse $file;
+
+	freeze +{
+		format => mp4_format $info{ENCODING},
+		title => $tag{TITLE} || '?',
+		artist => $tag{ARTIST} || '?',
+		year => $tag{YEAR} || '?',
+		album => $tag{ALBUM} || '?',
+		tracknumber => $tag{TRACKNUM} || '?',
+		tracktotal => ($tag{TRKN} ? $tag{TRKN}->[1] : undef) || '?',
+		genre => $tag{GENRE} || '?',
+		file => $file,
+	};
+}
+
 sub normalizer{
 	"$_[0]|".(stat $_[0])[9]
 }
@@ -100,7 +127,7 @@ sub normalizer{
 sub run {
 	if ($cache) {
 		tie my %cache, 'DB_File', $cache, O_RDWR|O_CREAT, 0644;
-		memoize $_, NORMALIZER => \&normalizer, LIST_CACHE => 'MERGE', SCALAR_CACHE => [HASH => \%cache] for qw/flacinfo mp3info vorbisinfo/;
+		memoize $_, NORMALIZER => \&normalizer, LIST_CACHE => 'MERGE', SCALAR_CACHE => [HASH => \%cache] for qw/flacinfo mp3info vorbisinfo mp4info/;
 	}
 
 	my %files;
@@ -109,8 +136,9 @@ sub run {
 		$info = thaw flacinfo $file if $file =~ /\.flac$/i;
 		$info = thaw mp3info $file if $file =~ /\.mp3$/i;
 		$info = thaw vorbisinfo $file if $file =~ /\.og(?:g|a)$/i;
+		$info = thaw mp4info $file if $file =~ /\.mp4|\.aac|\.m4a$/i;
 		next unless defined $info;
-		my $basename = fileparse $file, '.flac', '.mp3', '.ogg', '.oga';
+		my $basename = fileparse $file, '.flac', '.mp3', '.ogg', '.oga', '.mp4', '.aac', '.m4a';
 		$files{$basename} //= [];
 		push $files{$basename}, $info;
 	}
-- 
2.30.2