opt: ao (#1811)

* opt: ao

* multi select

---------

Co-authored-by: dom <githubaccount56556@proton.me>

lib/plugin/pl_player/models/audio_output_type.dart

@@ -0,0 +1,14 @@
+import 'package:PiliPlus/models/common/enum_with_label.dart';
+
+enum AudioOutput implements EnumWithLabel {
+  aaudio('AAudio'),
+  opensles('OpenSL ES'),
+  audiotrack('AudioTrack')
+  ;
+
+  static final defaultValue = values.map((e) => e.name).join(',');
+
+  @override
+  final String label;
+  const AudioOutput(this.label);
+}