Serialize OpenAL playback on a dedicated thread

barnard.go

@@ -27,7 +27,7 @@ type Barnard struct {
 	Address   string
 	TLSConfig tls.Config
 
-	Stream    *gumbleopenal.Stream
+	Stream       *gumbleopenal.Stream
 	Tx           bool
 	AutoTransmit bool // auto-start transmission on connect
 	Connected    bool
@@ -136,13 +136,7 @@ func (b *Barnard) TreeItemKeyPress(ui *uiterm.Ui, tree *uiterm.Tree, item uiterm
 					b.UserConfig.ToggleMute(u)
 				}
 
-				if au := u.AudioSource(); au != nil {
-					if u.LocallyMuted() {
-						au.SetGain(0)
-					} else {
-						au.SetGain(u.Volume())
-					}
-				}
+				b.Stream.UpdateUserGain(u)
 			}
 
 			// Update channel mute state
@@ -174,13 +168,7 @@ func (b *Barnard) TreeItemKeyPress(ui *uiterm.Ui, tree *uiterm.Tree, item uiterm
 		if key == *b.Hotkeys.MuteToggle {
 			// Toggle mute for single user
 			b.UserConfig.ToggleMute(treeItem.User)
-			if au := treeItem.User.AudioSource(); au != nil {
-				if treeItem.User.LocallyMuted() {
-					au.SetGain(0)
-				} else {
-					au.SetGain(treeItem.User.Volume())
-				}
-			}
+			b.Stream.UpdateUserGain(treeItem.User)
 			b.RebuildUserChannelTreePreservingSelection()
 			b.Ui.Refresh()
 		}