[gnome-music/wip/jfelder/musicbrainz-tageditordialog: 28/31] musicbrainz: Initial musicbrainz support
- From: Jean Felder <jfelder src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-music/wip/jfelder/musicbrainz-tageditordialog: 28/31] musicbrainz: Initial musicbrainz support
- Date: Tue, 18 Jun 2019 14:13:45 +0000 (UTC)
commit c3c41761dd0b5e901d363f9d9a31ef8c8e54147f
Author: Jean Felder <jfelder src gnome org>
Date: Tue Aug 21 00:22:38 2018 +0200
musicbrainz: Initial musicbrainz support
Add support for chromparint, acoustid and musicbrainz grilo plugins.
gnomemusic/grilo.py | 8 +++
gnomemusic/musicbrainz.py | 132 ++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 140 insertions(+)
---
diff --git a/gnomemusic/grilo.py b/gnomemusic/grilo.py
index 63b26573..b4cc1755 100644
--- a/gnomemusic/grilo.py
+++ b/gnomemusic/grilo.py
@@ -28,6 +28,8 @@
import gi
gi.require_version('Grl', '0.3')
from gi.repository import GLib, GObject
+
+from gnomemusic.musicbrainz import MusicBrainz
from gnomemusic.query import Query
from gnomemusic import log
from gnomemusic.trackerwrapper import TrackerWrapper
@@ -135,6 +137,8 @@ class Grilo(GObject.GObject):
GObject.BindingFlags.BIDIRECTIONAL |
GObject.BindingFlags.SYNC_CREATE)
+ self._musicbrainz = MusicBrainz(self)
+
self._find_sources()
@log
@@ -540,5 +544,9 @@ class Grilo(GObject.GObject):
self.tracker_sparql.query_async(
Query.all_songs_count(), None, songs_query_cb, None)
+ @log
+ def get_tags_from_musicbrainz(self, media, callback):
+ return self._musicbrainz.get_song_tags(media, callback)
+
grilo = Grilo()
diff --git a/gnomemusic/musicbrainz.py b/gnomemusic/musicbrainz.py
new file mode 100644
index 00000000..90e266f5
--- /dev/null
+++ b/gnomemusic/musicbrainz.py
@@ -0,0 +1,132 @@
+# Copyright 2018 The GNOME Music developers
+#
+# GNOME Music is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# GNOME Music is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with GNOME Music; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The GNOME Music authors hereby grant permission for non-GPL compatible
+# GStreamer plugins to be used and distributed together with GStreamer
+# and GNOME Music. This permission is above and beyond the permissions
+# granted by the GPL license by which GNOME Music is covered. If you
+# modify this code, you may extend this exception to your version of the
+# code, but you are not obligated to do so. If you do not wish to do so,
+# delete this exception statement from your version.
+
+import logging
+
+from gi.repository import GObject, Grl
+
+logger = logging.getLogger(__name__)
+
+
+class MusicBrainz(GObject.GObject):
+
+ _acoustid_api_key = 'Nb8SVVtH1C'
+
+ _needed_sources = [
+ 'grl-chromaprint',
+ 'grl-acoustid'
+ ]
+
+ def __repr__(self):
+ return '<MusicBrainz>'
+
+ def __init__(self, grilo):
+ super().__init__()
+
+ self._grilo = grilo
+ self._grilo.connect('new-resolve-source-found', self._add_new_source)
+
+ config = Grl.Config.new('grl-lua-factory', 'grl-acoustid')
+ config.set_api_key(self._acoustid_api_key)
+ self._grilo.registry.add_config(config)
+
+ self._fingerprint_key = Grl.METADATA_KEY_INVALID
+ self._sources = {}
+
+ def _add_new_source(self, klass, source):
+ source_id = source.get_id()
+ if source_id in self._needed_sources:
+ self._sources[source_id] = source
+
+ if source_id == 'grl-chromaprint':
+ self._fingerprint_key = self._grilo.registry.lookup_metadata_key(
+ 'chromaprint')
+ if self._fingerprint_key == Grl.METADATA_KEY_INVALID:
+ logger.warning("Error, cannot retrieve fingerprint key")
+
+ @GObject.Property(type=bool, default=False)
+ def chromaprint_available(self):
+ return ('grl-chromaprint' in self._sources.keys()
+ and self._fingerprint_key != Grl.METADATA_KEY_INVALID)
+
+ @GObject.Property(type=bool, default=False)
+ def acoustid_available(self):
+ return 'grl-acoustid' in self._sources.keys()
+
+ @GObject.Property(type=bool, default=False)
+ def available(self):
+ return (self.props.chromaprint_available
+ and self.props.acoustid_available)
+
+ def _acoustid_resolved(self, source, op_id, media, callback, error=None):
+ if error:
+ logger.warning("Error {}: {}".format(error.domain, error.message))
+ return callback(None)
+
+ return callback(media)
+
+ def _get_tags_from_acoustid(self, media, callback):
+ if not self.acoustid_available:
+ callback(None)
+ return
+
+ self._sources['grl-acoustid'].resolve(
+ media, self._grilo.METADATA_KEYS, self._grilo.options,
+ self._acoustid_resolved, callback)
+
+ def _chromaprint_resolved(
+ self, source, op_id, media, callback, error=None):
+ if error:
+ logger.warning("Error {}: {}".format(error.domain, error.message))
+ callback(None)
+ return
+
+ callback(media)
+
+ def _get_song_chromaprint(self, media, callback):
+ if self._fingerprint_key == Grl.METADATA_KEY_INVALID:
+ callback(None)
+ return
+
+ chromaprint = media.get_string(self._fingerprint_key)
+ if chromaprint is not None:
+ callback(media)
+ return
+
+ if not self.props.chromaprint_available:
+ callback(None)
+
+ keys = [self._fingerprint_key, Grl.METADATA_KEY_DURATION]
+ self._sources['grl-chromaprint'].resolve(
+ media, keys, self._grilo.options, self._chromaprint_resolved,
+ callback)
+
+ def get_song_tags(self, media, callback):
+ def _fingerprint_finished(media):
+ if not media:
+ callback(None)
+ return
+ self._get_tags_from_acoustid(media, callback)
+
+ self._get_song_chromaprint(media, _fingerprint_finished)
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