Move create_track() helper to mopidy.audio.mixers.utils

mopidy/audio/mixers/__init__.py

@@ -3,42 +3,6 @@ pygst.require('0.10')
 import gst
 import gobject
 
-
-def create_track(label, initial_volume, min_volume, max_volume,
-                 num_channels, flags):
-
-    class Track(gst.interfaces.MixerTrack):
-        def __init__(self):
-            super(Track, self).__init__()
-            self.volumes = (initial_volume,) * self.num_channels
-
-        @gobject.property
-        def label(self):
-            return label
-
-        @gobject.property
-        def min_volume(self):
-            return min_volume
-
-        @gobject.property
-        def max_volume(self):
-            return max_volume
-
-        @gobject.property
-        def num_channels(self):
-            return num_channels
-
-        @gobject.property
-        def flags(self):
-            return flags
-
-    return Track()
-
-
-# Import all mixers so that they are registered with GStreamer.
-#
-# Keep these imports at the bottom of the file to avoid cyclic import problems
-# when mixers use the above code.
 from .auto import AutoAudioMixer
 from .fake import FakeMixer
 from .nad import NadMixer

mopidy/audio/mixers/fake.py

@@ -3,7 +3,7 @@ pygst.require('0.10')
 import gobject
 import gst
 
-from mopidy.audio.mixers import create_track
+from . import utils
 
 
 class FakeMixer(gst.Element, gst.ImplementsInterface, gst.interfaces.Mixer):
@@ -25,7 +25,7 @@ class FakeMixer(gst.Element, gst.ImplementsInterface, gst.interfaces.Mixer):
         gst.Element.__init__(self)
 
     def list_tracks(self):
-        track = create_track(
+        track = utils.create_track(
             self.track_label,
             self.track_initial_volume,
             self.track_min_volume,

mopidy/audio/mixers/nad.py

@@ -12,7 +12,7 @@ except ImportError:
 
 from pykka.actor import ThreadingActor
 
-from mopidy.audio.mixers import create_track
+from . import utils
 
 
 logger = logging.getLogger('mopidy.audio.mixers.nad')
@@ -36,7 +36,7 @@ class NadMixer(gst.Element, gst.ImplementsInterface, gst.interfaces.Mixer):
         self._nad_talker = None
 
     def list_tracks(self):
-        track = create_track(
+        track = utils.create_track(
             label='Master',
             initial_volume=0,
             min_volume=0,

mopidy/audio/mixers/utils.py

@@ -0,0 +1,35 @@
+import pygst
+pygst.require('0.10')
+import gst
+import gobject
+
+
+def create_track(label, initial_volume, min_volume, max_volume,
+                 num_channels, flags):
+
+    class Track(gst.interfaces.MixerTrack):
+        def __init__(self):
+            super(Track, self).__init__()
+            self.volumes = (initial_volume,) * self.num_channels
+
+        @gobject.property
+        def label(self):
+            return label
+
+        @gobject.property
+        def min_volume(self):
+            return min_volume
+
+        @gobject.property
+        def max_volume(self):
+            return max_volume
+
+        @gobject.property
+        def num_channels(self):
+            return num_channels
+
+        @gobject.property
+        def flags(self):
+            return flags
+
+    return Track()