[grilo] core: add GRL_METADATA_KEY_MB_ALBUM_ID

[Juan A. Suarez Romero <jasuarez src gnome org>]

commit ec35e862057a1aa686be4d6addf91ae4b5cc3568
Author: Juan A. Suarez Romero <jasuarez igalia com>
Date:   Thu Jun 5 17:49:42 2014 +0000

    core: add GRL_METADATA_KEY_MB_ALBUM_ID
    
    MusicBrainz album identifier.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=731282

 bindings/vala/grilo-0.2-custom.vala |    2 ++
 doc/grilo/grilo-sections.txt        |    3 +++
 src/data/grl-media-audio.c          |   27 +++++++++++++++++++++++++++
 src/data/grl-media-audio.h          |    4 ++++
 src/grl-metadata-key.c              |    9 +++++++++
 src/grl-metadata-key.h              |    1 +
 6 files changed, 46 insertions(+), 0 deletions(-)
---
diff --git a/bindings/vala/grilo-0.2-custom.vala b/bindings/vala/grilo-0.2-custom.vala
index 2b3f225..3bf99cf 100644
--- a/bindings/vala/grilo-0.2-custom.vala
+++ b/bindings/vala/grilo-0.2-custom.vala
@@ -112,6 +112,8 @@ namespace Grl {
                public static Grl.KeyID DIRECTOR;
                [CCode (cname ="GRL_METADATA_KEY_ORIGINAL_TITLE")]
                public static Grl.KeyID ORIGINAL_TITLE;
+                [CCode (cname ="GRL_METADATA_KEY_MB_ALBUM_ID")]
+                public static Grl.KeyID MB_ALBUM_ID;
 
                public static unowned GLib.List list_new (Grl.KeyID p, ...);
        }
diff --git a/doc/grilo/grilo-sections.txt b/doc/grilo/grilo-sections.txt
index 073d7fa..d8a5380 100644
--- a/doc/grilo/grilo-sections.txt
+++ b/doc/grilo/grilo-sections.txt
@@ -558,6 +558,7 @@ grl_media_audio_get_genre
 grl_media_audio_get_genre_nth
 grl_media_audio_get_lyrics
 grl_media_audio_get_lyrics_nth
+grl_media_audio_get_mb_album_id
 grl_media_audio_get_track_number
 grl_media_audio_get_url_data
 grl_media_audio_get_url_data_nth
@@ -566,6 +567,7 @@ grl_media_audio_set_artist
 grl_media_audio_set_bitrate
 grl_media_audio_set_genre
 grl_media_audio_set_lyrics
+grl_media_audio_set_mb_album_id
 grl_media_audio_set_track_number
 grl_media_audio_set_url_data
 <SUBSECTION Standard>
@@ -651,6 +653,7 @@ GRL_METADATA_KEY_LAST_PLAYED
 GRL_METADATA_KEY_LAST_POSITION
 GRL_METADATA_KEY_LICENSE
 GRL_METADATA_KEY_LYRICS
+GRL_METADATA_KEY_MB_ALBUM_ID
 GRL_METADATA_KEY_MIME
 GRL_METADATA_KEY_MODIFICATION_DATE
 GRL_METADATA_KEY_ORIENTATION
diff --git a/src/data/grl-media-audio.c b/src/data/grl-media-audio.c
index 258aaba..41d904f 100644
--- a/src/data/grl-media-audio.c
+++ b/src/data/grl-media-audio.c
@@ -143,6 +143,21 @@ grl_media_audio_set_lyrics (GrlMediaAudio *audio, const gchar *lyrics)
 }
 
 /**
+ * grl_media_audio_set_mb_album_id:
+ * @audio: the media instance
+ * @mb_album_id: the MusicBrainz album identifier
+ *
+ * Set the MusicBrainz album identifier of the audio
+ */
+void
+grl_media_audio_set_mb_album_id (GrlMediaAudio *audio, const gchar *mb_album_id)
+{
+  g_return_if_fail (GRL_IS_MEDIA_AUDIO (audio));
+  grl_data_set_string (GRL_DATA (audio), GRL_METADATA_KEY_MB_ALBUM_ID,
+                       mb_album_id);
+}
+
+/**
  * grl_media_audio_set_bitrate:
  * @audio: the media instance
  * @bitrate: the audio's bitrate
@@ -422,6 +437,18 @@ grl_media_audio_get_lyrics_nth (GrlMediaAudio *audio, guint index)
 }
 
 /**
+ * grl_media_audio_get_mb_album_id:
+ * @audio: the media instance
+ *
+ * Returns: the MusicBrainz album identifier
+ */
+const gchar *
+grl_media_audio_get_mb_album_id (GrlMediaAudio *audio)
+{
+  return grl_data_get_string (GRL_DATA (audio), GRL_METADATA_KEY_MB_ALBUM_ID);
+}
+
+/**
  * grl_media_audio_get_bitrate:
  * @audio: the media instance
  *
diff --git a/src/data/grl-media-audio.h b/src/data/grl-media-audio.h
index b56e328..da215a7 100644
--- a/src/data/grl-media-audio.h
+++ b/src/data/grl-media-audio.h
@@ -93,6 +93,8 @@ void grl_media_audio_set_genre (GrlMediaAudio *audio, const gchar *genre);
 
 void grl_media_audio_set_lyrics (GrlMediaAudio *audio, const gchar *lyrics);
 
+void grl_media_audio_set_mb_album_id (GrlMediaAudio *audio, const gchar *mb_album_id);
+
 void grl_media_audio_set_bitrate (GrlMediaAudio *audio, gint bitrate);
 
 void grl_media_audio_set_track_number (GrlMediaAudio *audio, gint track_number);
@@ -121,6 +123,8 @@ const gchar *grl_media_audio_get_lyrics (GrlMediaAudio *audio);
 
 const gchar *grl_media_audio_get_lyrics_nth (GrlMediaAudio *audio, guint index);
 
+const gchar *grl_media_audio_get_mb_album_id (GrlMediaAudio *audio);
+
 gint grl_media_audio_get_bitrate (GrlMediaAudio *audio);
 
 gint grl_media_audio_get_track_number (GrlMediaAudio *audio);
diff --git a/src/grl-metadata-key.c b/src/grl-metadata-key.c
index 94631e5..2034ba3 100644
--- a/src/grl-metadata-key.c
+++ b/src/grl-metadata-key.c
@@ -530,6 +530,15 @@ grl_metadata_key_setup_system_keys (GrlRegistry *registry)
                                              GRL_METADATA_KEY_TITLE_FROM_FILENAME,
                                              NULL);
 
+  grl_registry_register_metadata_key_system (registry,
+                                             g_param_spec_string ("mb-album-id",
+                                                                  "MusicBrainz Album Id",
+                                                                  "Album identifier in MusicBrainz",
+                                                                  NULL,
+                                                                  G_PARAM_STATIC_STRINGS | 
G_PARAM_READWRITE),
+                                             GRL_METADATA_KEY_MB_ALBUM_ID,
+                                             NULL);
+
   /* Create the relations */
   grl_registry_register_metadata_key_relation (registry,
                                                GRL_METADATA_KEY_TITLE,
diff --git a/src/grl-metadata-key.h b/src/grl-metadata-key.h
index 4b4b568..b11ae1e 100644
--- a/src/grl-metadata-key.h
+++ b/src/grl-metadata-key.h
@@ -98,6 +98,7 @@ typedef guint32 GrlKeyID;
 #define GRL_METADATA_KEY_ORIGINAL_TITLE       49
 #define GRL_METADATA_KEY_SIZE                 50
 #define GRL_METADATA_KEY_TITLE_FROM_FILENAME  51
+#define GRL_METADATA_KEY_MB_ALBUM_ID          52
 
 G_BEGIN_DECLS