Add an option to disable built-in AEC to AppRTC Android Demo

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

 /*
  *  Copyright 2014 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.
  */
 
 package org.appspot.apprtc;
 
 import android.app.Activity;
 import android.content.SharedPreferences;
 import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
 import android.os.Bundle;
 import android.preference.Preference;
 
+import org.webrtc.voiceengine.WebRtcAudioUtils;
+
 /**
  * Settings activity for AppRTC.
  */
 public class SettingsActivity extends Activity
     implements OnSharedPreferenceChangeListener{
   private SettingsFragment settingsFragment;
   private String keyprefVideoCall;
   private String keyprefResolution;
   private String keyprefFps;
   private String keyprefCaptureQualitySlider;
   private String keyprefStartVideoBitrateType;
   private String keyprefStartVideoBitrateValue;
   private String keyPrefVideoCodec;
   private String keyprefHwCodec;
   private String keyprefCaptureToTexture;
 
   private String keyprefStartAudioBitrateType;
   private String keyprefStartAudioBitrateValue;
   private String keyPrefAudioCodec;
   private String keyprefNoAudioProcessing;
   private String keyprefAecDump;
   private String keyprefOpenSLES;
+  private String keyprefDisableBuiltInAEC;
 
   private String keyPrefRoomServerUrl;
   private String keyPrefDisplayHud;
   private String keyPrefTracing;
 
   @Override
   protected void onCreate(Bundle savedInstanceState) {
     super.onCreate(savedInstanceState);
     keyprefVideoCall = getString(R.string.pref_videocall_key);
     keyprefResolution = getString(R.string.pref_resolution_key);
     keyprefFps = getString(R.string.pref_fps_key);
     keyprefCaptureQualitySlider = getString(R.string.pref_capturequalityslider_key);
     keyprefStartVideoBitrateType = getString(R.string.pref_startvideobitrate_key);
     keyprefStartVideoBitrateValue = getString(R.string.pref_startvideobitratevalue_key);
     keyPrefVideoCodec = getString(R.string.pref_videocodec_key);
     keyprefHwCodec = getString(R.string.pref_hwcodec_key);
     keyprefCaptureToTexture = getString(R.string.pref_capturetotexture_key);
 
     keyprefStartAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefStartAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyPrefAudioCodec = getString(R.string.pref_audiocodec_key);
     keyprefNoAudioProcessing = getString(R.string.pref_noaudioprocessing_key);
     keyprefAecDump = getString(R.string.pref_aecdump_key);
     keyprefOpenSLES = getString(R.string.pref_opensles_key);
+    keyprefDisableBuiltInAEC = getString(R.string.pref_disable_built_in_aec_key);
 
     keyPrefRoomServerUrl = getString(R.string.pref_room_server_url_key);
     keyPrefDisplayHud = getString(R.string.pref_displayhud_key);
     keyPrefTracing = getString(R.string.pref_tracing_key);
 
     // Display the fragment as the main content.
     settingsFragment = new SettingsFragment();
     getFragmentManager().beginTransaction()
         .replace(android.R.id.content, settingsFragment)
         .commit();
@@ skipping 17 matching lines @@
     updateSummaryB(sharedPreferences, keyprefHwCodec);
     updateSummaryB(sharedPreferences, keyprefCaptureToTexture);
 
     updateSummary(sharedPreferences, keyprefStartAudioBitrateType);
     updateSummaryBitrate(sharedPreferences, keyprefStartAudioBitrateValue);
     setAudioBitrateEnable(sharedPreferences);
     updateSummary(sharedPreferences, keyPrefAudioCodec);
     updateSummaryB(sharedPreferences, keyprefNoAudioProcessing);
     updateSummaryB(sharedPreferences, keyprefAecDump);
     updateSummaryB(sharedPreferences, keyprefOpenSLES);
+    updateSummaryB(sharedPreferences, keyprefDisableBuiltInAEC);
 
     updateSummary(sharedPreferences, keyPrefRoomServerUrl);
     updateSummaryB(sharedPreferences, keyPrefDisplayHud);
     updateSummaryB(sharedPreferences, keyPrefTracing);
+
+    // Disable forcing WebRTC based AEC so it won't affect our value.
+    // Otherwise, if it was enabled, isAcousticEchoCancelerSupported would always return false.
+    WebRtcAudioUtils.setWebRtcBasedAcousticEchoCanceler(false);
+    if (!WebRtcAudioUtils.isAcousticEchoCancelerSupported()) {
+      Preference disableBuiltInAECPreference =
+          settingsFragment.findPreference(keyprefDisableBuiltInAEC);
+
+
+      disableBuiltInAECPreference.setSummary(getString(R.string.pref_built_in_aec_not_available));
+      disableBuiltInAECPreference.setEnabled(false);
+    }
   }
 
   @Override
   protected void onPause() {
     super.onPause();
     SharedPreferences sharedPreferences =
         settingsFragment.getPreferenceScreen().getSharedPreferences();
     sharedPreferences.unregisterOnSharedPreferenceChangeListener(this);
   }
 
@@ skipping 12 matching lines @@
         || key.equals(keyprefStartAudioBitrateValue)) {
       updateSummaryBitrate(sharedPreferences, key);
     } else if (key.equals(keyprefVideoCall)
         || key.equals(keyPrefTracing)
         || key.equals(keyprefCaptureQualitySlider)
         || key.equals(keyprefHwCodec)
         || key.equals(keyprefCaptureToTexture)
         || key.equals(keyprefNoAudioProcessing)
         || key.equals(keyprefAecDump)
         || key.equals(keyprefOpenSLES)
+        || key.equals(keyprefDisableBuiltInAEC)
         || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);
     }
     if (key.equals(keyprefStartVideoBitrateType)) {
       setVideoBitrateEnable(sharedPreferences);
     }
     if (key.equals(keyprefStartAudioBitrateType)) {
       setAudioBitrateEnable(sharedPreferences);
     }
   }
@@ skipping 36 matching lines @@
     String bitrateTypeDefault = getString(R.string.pref_startaudiobitrate_default);
     String bitrateType = sharedPreferences.getString(
         keyprefStartAudioBitrateType, bitrateTypeDefault);
     if (bitrateType.equals(bitrateTypeDefault)) {
       bitratePreferenceValue.setEnabled(false);
     } else {
       bitratePreferenceValue.setEnabled(true);
     }
   }
 }