feat: Automatically configure audio mode for Android. (#746)

* feat: Automatically configure audio mode for Android.

* import sorter.

Author: cloudwebrtc

lib/src/core/room.dart

@@ -41,6 +41,7 @@ import '../support/disposable.dart';
 import '../support/platform.dart';
 import '../support/region_url_provider.dart';
 import '../support/websocket.dart' show WebSocketException;
+import '../track/audio_management.dart';
 import '../track/local/audio.dart';
 import '../track/local/video.dart';
 import '../track/track.dart';
@@ -244,6 +245,10 @@ class Room extends DisposableChangeNotifier with EventsEmittable<RoomEvent> {
         logger.warning('could not fetch region settings $e');
       }));
     }
+
+    // configure audio for native platform
+    await NativeAudioManagement.start();
+
     try {
       await engine.connect(
         _regionUrl ?? url,
@@ -936,6 +941,8 @@ extension RoomPrivateMethods on Room {
     // clean up engine
     await engine.cleanUp();
 
+    await NativeAudioManagement.stop();
+
     // reset params
     _name = null;
     _metadata = null;

lib/src/track/audio_management.dart

@@ -12,6 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+import 'package:flutter_webrtc/flutter_webrtc.dart' as rtc;
 import 'package:synchronized/synchronized.dart' as sync;
 
 import '../hardware/hardware.dart';
@@ -159,3 +160,24 @@ Future<NativeAudioConfiguration> defaultNativeAudioConfigurationFunc(
       ? NativeAudioConfiguration.playAndRecordSpeaker
       : NativeAudioConfiguration.playAndRecordReceiver;
 }
+
+class NativeAudioManagement {
+  static Future<void> start() async {
+    // Audio configuration for Android.
+    if (lkPlatformIs(PlatformType.android)) {
+      if (Native.bypassVoiceProcessing) {
+        await rtc.Helper.setAndroidAudioConfiguration(
+            rtc.AndroidAudioConfiguration.media);
+      } else {
+        await rtc.Helper.setAndroidAudioConfiguration(
+            rtc.AndroidAudioConfiguration.communication);
+      }
+    }
+  }
+
+  static Future<void> stop() async {
+    if (lkPlatformIs(PlatformType.android)) {
+      await rtc.Helper.clearAndroidCommunicationDevice();
+    }
+  }
+}

pubspec.yaml

@@ -37,7 +37,7 @@ dependencies:
   uuid: ^4.5.1
   synchronized: ^3.0.0+3
   protobuf: ^3.0.0
-  flutter_webrtc: ^0.13.1
+  flutter_webrtc: ^0.13.1+hotfix.1
   device_info_plus: ^11.3.0
   dart_webrtc: ^1.5.3
   sdp_transform: ^0.3.2