Show who is talking in conf view

res/layout/conf_callee.xml

@@ -23,7 +23,8 @@
 	  android:layout_width="wrap_content" android:layout_height="fill_parent"
 	  android:layout_centerVertical="true">
 	  	<TextView android:id="@+id/status_label" style="@style/callee_status" />
-	  	<ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/QoS" android:src="@drawable/stat_sys_signal_0" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" /> 
+	  	<ImageView android:id="@+id/callee_status_speeking" style="@style/callee_status" android:src="@drawable/conf_speaking" android:visibility="gone"/>
+	  	<ImageView android:id="@+id/callee_status_qos" style="@style/callee_status" android:src="@drawable/stat_sys_signal_0" android:visibility="gone"/> 
 		<ImageView android:id="@+id/callee_status_paused" style="@style/callee_status" android:src="@drawable/conf_status_paused" android:visibility="gone"/>
 		<ImageView android:id="@+id/callee_status_secured" style="@style/callee_status" android:src="@drawable/conf_secured" android:visibility="gone"/>
 		<ImageView android:id="@+id/callee_status_maybe_secured" style="@style/callee_status" android:src="@drawable/conf_maybe_secured" android:visibility="gone"/>

src/org/linphone/AbstractCalleesActivity.java

@@ -67,6 +67,7 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 	
 	private Handler callqualityHandler;
 	private List<View> viewsToUpdateCallQuality;
+	private boolean shouldDisplayWhoIsTalking = false;
 	@Override
 	/**
 	 * Called by the child classes AFTER their own onCreate.
@@ -215,6 +216,12 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 		}
 		
 		protected final void initCallQualityListener() {
+			final int timeToRefresh;
+			if (shouldDisplayWhoIsTalking)
+				timeToRefresh = 100;
+			else
+				timeToRefresh = 1000;
+			
 			callqualityHandler = new Handler();
 			viewsToUpdateCallQuality = new ArrayList<View>();
 			callqualityHandler.postDelayed(new Runnable() {
@@ -227,11 +234,19 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 						LinphoneCall call = (LinphoneCall) v.getTag();
 						float newQuality = call.getCurrentQuality();
 							updateQualityOfSignalIcon(v, newQuality);
+						
+						// We also use this handler to display the ones who speaks
+						ImageView speaking = (ImageView) v.findViewById(R.id.callee_status_speeking);
+						if (shouldDisplayWhoIsTalking && call.getPlayVolume() >= -20) {
+							speaking.setVisibility(View.VISIBLE);
+						} else if (speaking.getVisibility() != View.GONE) {
+							speaking.setVisibility(View.GONE);
+						}
 					}
 					
-					callqualityHandler.postDelayed(this, 1000);
+					callqualityHandler.postDelayed(this, timeToRefresh);
 				}
-			},1000);
+			},timeToRefresh);
 		}
 		
 		protected final void registerCallQualityListener(final View v, final LinphoneCall call) {
@@ -241,6 +256,10 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 			v.setTag(call);
 			viewsToUpdateCallQuality.add(v);
 		}
+		
+		protected final void registerCallSpeakerListener() {
+			shouldDisplayWhoIsTalking = true;
+		}
 	}
 
 	@Override
@@ -282,7 +301,10 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 	
 	void updateQualityOfSignalIcon(View v, float quality)
 	{
-		ImageView qos = (ImageView) v.findViewById(R.id.QoS);
+		ImageView qos = (ImageView) v.findViewById(R.id.callee_status_qos);
+		if (!(qos.getVisibility() == View.VISIBLE)) {
+			qos.setVisibility(View.VISIBLE);
+		}
 		if (quality >= 4) // Good Quality
 		{
 			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_4));

src/org/linphone/ConferenceDetailsActivity.java

@@ -96,12 +96,15 @@ public class ConferenceDetailsActivity extends AbstractCalleesActivity  {
 				}
 			});
 			
+			setVisibility(v, R.id.callee_status_qos, true);
+
 			// May be greatly sped up using a drawable cache
 			ImageView pictureView = (ImageView) v.findViewById(R.id.picture);
 			setCalleePicture(pictureView, address);
 
 			registerCallDurationTimer(v, call);
 			registerCallQualityListener(v, call);
+			registerCallSpeakerListener();
 			
 			return v;
 		}

src/org/linphone/IncallActivity.java

@@ -456,7 +456,7 @@ public class IncallActivity extends AbstractCalleesActivity implements
 
 			boolean statusPaused = state== State.Paused || state == State.PausedByRemote;
 			setVisibility(v, R.id.callee_status_paused, statusPaused);
-			setVisibility(v, R.id.QoS, !statusPaused);
+			setVisibility(v, R.id.callee_status_qos, !statusPaused);
 
 			final OnLongClickListener showCallActionsLongListener = new OnLongClickListener() {
 				public boolean onLongClick(View v) {

src/org/linphone/core/LinphoneCallImpl.java

@@ -147,4 +147,9 @@ class LinphoneCallImpl implements LinphoneCall {
 	public String toString() {
 		return "Call " + nativePtr;
 	}
+
+	private native float getPlayVolume(long nativePtr);
+	public float getPlayVolume() {
+		return getPlayVolume(nativePtr);
+	}
 }