Surface the IntelligibilityEnhancer on MediaConstraints

webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java

Index: webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java
diff --git a/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java b/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java
index fd27ca770bd523a7ae27ecf6b339caddfcbbdacd..65c6cc92305b045fedf1712905904ce661fe118f 100644
--- a/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java
+++ b/webrtc/modules/audio_device/android/java/src/org/webrtc/voiceengine/WebRtcAudioUtils.java
@@ -65,6 +65,7 @@ public final class WebRtcAudioUtils {
   private static boolean useWebRtcBasedAcousticEchoCanceler = false;
   private static boolean useWebRtcBasedAutomaticGainControl = false;
   private static boolean useWebRtcBasedNoiseSuppressor = false;
+  private static boolean useWebRtcBasedIntelligibilityEnhancer = false;

[the sun, 2016/05/06 09:00:16]

So is there a non-webrtc based IE?

[aluebs-webrtc, 2016/05/06 16:27:10]

No, so I am happy to change the naming here if you think it is better to not
mention WebRTC.

 
   // Call these methods if any hardware based effect shall be replaced by a
   // software based version provided by the WebRTC stack instead.
@@ -80,6 +81,10 @@ public final class WebRtcAudioUtils {
       boolean enable) {
     useWebRtcBasedNoiseSuppressor = enable;
   }
+  public static synchronized void setWebRtcBasedIntelligibilityEnhancer(
+      boolean enable) {
+    useWebRtcBasedIntelligibilityEnhancer = enable;
+  }
 
   public static synchronized boolean useWebRtcBasedAcousticEchoCanceler() {
     if (useWebRtcBasedAcousticEchoCanceler) {
@@ -99,6 +104,12 @@ public final class WebRtcAudioUtils {
     }
     return useWebRtcBasedNoiseSuppressor;
   }
+  public static synchronized boolean useWebRtcBasedIntelligibilityEnhancer() {
+    if (useWebRtcBasedIntelligibilityEnhancer) {
+      Logging.w(TAG, "Overriding default behavior; now using WebRTC IE!");
+    }
+    return useWebRtcBasedIntelligibilityEnhancer;
+  }
 
   // Call this method if the default handling of querying the native sample
   // rate shall be overridden. Can be useful on some devices where the