Adds basic Bluetooth support to AppRTCMobile

webrtc/examples/androidapp/src/org/appspot/apprtc/CallActivity.java

 /*
  *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 15 matching lines @@
 import android.util.Log;
 import android.view.View;
 import android.view.Window;
 import android.view.WindowManager;
 import android.view.WindowManager.LayoutParams;
 import android.widget.Toast;
 import java.io.IOException;
 import java.lang.RuntimeException;
 import java.util.ArrayList;
 import java.util.List;
+import java.util.Set;
+import org.appspot.apprtc.AppRTCAudioManager.AudioDevice;
+import org.appspot.apprtc.AppRTCAudioManager.AudioManagerEvents;
 import org.appspot.apprtc.AppRTCClient.RoomConnectionParameters;
 import org.appspot.apprtc.AppRTCClient.SignalingParameters;
 import org.appspot.apprtc.PeerConnectionClient.DataChannelParameters;
 import org.appspot.apprtc.PeerConnectionClient.PeerConnectionParameters;
 import org.webrtc.Camera1Enumerator;
 import org.webrtc.Camera2Enumerator;
 import org.webrtc.CameraEnumerator;
 import org.webrtc.EglBase;
 import org.webrtc.FileVideoCapturer;
 import org.webrtc.IceCandidate;
@@ skipping 472 matching lines @@
       return;
     }
     callStartedTimeMs = System.currentTimeMillis();
 
     // Start room connection.
     logAndToast(getString(R.string.connecting_to, roomConnectionParameters.roomUrl));
     appRtcClient.connectToRoom(roomConnectionParameters);
 
     // Create and audio manager that will take care of audio routing,
     // audio modes, audio device enumeration etc.
-    audioManager = AppRTCAudioManager.create(this, new Runnable() {
-      // This method will be called each time the audio state (number and
-      // type of devices) has been changed.
+    audioManager = AppRTCAudioManager.create(this);
+    // Store existing audio settings and change audio mode to
+    // MODE_IN_COMMUNICATION for best possible VoIP performance.
+    Log.d(TAG, "Starting the audio manager...");
+    audioManager.start(new AudioManagerEvents() {
+      // This method will be called each time the number of available audio
+      // devices has changed.
       @Override
-      public void run() {
-        onAudioManagerChangedState();
+      public void onAudioDeviceChanged(
+          AudioDevice audioDevice, Set<AudioDevice> availableAudioDevices) {
+        onAudioManagerDevicesChanged(audioDevice, availableAudioDevices);
       }
     });
-    // Store existing audio settings and change audio mode to
-    // MODE_IN_COMMUNICATION for best possible VoIP performance.
-    Log.d(TAG, "Initializing the audio manager...");
-    audioManager.init();
   }
 
   // Should be called from UI thread
   private void callConnected() {
     final long delta = System.currentTimeMillis() - callStartedTimeMs;
     Log.i(TAG, "Call connected: delay=" + delta + "ms");
     if (peerConnectionClient == null || isError) {
       Log.w(TAG, "Call is connected in closed or error state");
       return;
     }
     // Update video view.
     updateVideoView();
     // Enable statistics callback.
     peerConnectionClient.enableStatsEvents(true, STAT_CALLBACK_PERIOD);
   }
 
-  private void onAudioManagerChangedState() {
-    // TODO(henrika): disable video if AppRTCAudioManager.AudioDevice.EARPIECE
-    // is active.
+  // This method is called when the audio manager reports audio device change,
+  // e.g. from wired headset to speakerphone.
+  private void onAudioManagerDevicesChanged(
+      final AudioDevice device, final Set<AudioDevice> availableDevices) {
+    Log.d(TAG, "onAudioManagerDevicesChanged: " + availableDevices + ", "
+            + "selected: " + device);
+    // TODO(henrika): add callback handler.
   }
 
   // Disconnect from remote resources, dispose of local resources, and exit.
   private void disconnect() {
     activityRunning = false;
     if (appRtcClient != null) {
       appRtcClient.disconnectFromRoom();
       appRtcClient = null;
     }
     if (peerConnectionClient != null) {
       peerConnectionClient.close();
       peerConnectionClient = null;
     }
     if (localRender != null) {
       localRender.release();
       localRender = null;
     }
     if (videoFileRenderer != null) {
       videoFileRenderer.release();
       videoFileRenderer = null;
     }
     if (remoteRenderScreen != null) {
       remoteRenderScreen.release();
       remoteRenderScreen = null;
     }
     if (audioManager != null) {
-      audioManager.close();
+      audioManager.stop();
       audioManager = null;
     }
     if (iceConnected && !isError) {
       setResult(RESULT_OK);
     } else {
       setResult(RESULT_CANCELED);
     }
     finish();
   }
 
@@ skipping 283 matching lines @@
         }
       }
     });
   }
 
   @Override
   public void onPeerConnectionError(final String description) {
     reportError(description);
   }
 }