show own video in pip mode for group calls

Signed-off-by: Marcel Hibbe <dev@mhibbe.de>

app/src/main/java/com/nextcloud/talk/activities/CallActivity.kt

@@ -901,7 +901,7 @@ class CallActivity : CallBaseActivity() {
             if (cameraEnumerator!!.deviceNames.size < 2) {
                 binding!!.switchSelfVideoButton.visibility = View.GONE
             }
-            initSelfVideoView()
+            initSelfVideoViewForNormalMode()
         }
         binding!!.gridview.setOnTouchListener { _, me ->
             val action = me.actionMasked
@@ -924,7 +924,7 @@ class CallActivity : CallBaseActivity() {
     }
 
     @SuppressLint("ClickableViewAccessibility")
-    private fun initSelfVideoView() {
+    private fun initSelfVideoViewForNormalMode() {
         try {
             binding!!.selfVideoRenderer.init(rootEglBase!!.eglBaseContext, null)
         } catch (e: IllegalStateException) {
@@ -937,6 +937,20 @@ class CallActivity : CallBaseActivity() {
         binding!!.selfVideoRenderer.setOnTouchListener(SelfVideoTouchListener())
     }
 
+    private fun initSelfVideoViewForPipMode() {
+        try {
+            binding!!.pipSelfVideoRenderer.init(rootEglBase!!.eglBaseContext, null)
+        } catch (e: IllegalStateException) {
+            Log.d(TAG, "pipGroupVideoRenderer already initialized", e)
+        }
+        binding!!.pipSelfVideoRenderer.setZOrderMediaOverlay(true)
+        // disabled because it causes some devices to crash
+        binding!!.pipSelfVideoRenderer.setEnableHardwareScaler(false)
+        binding!!.pipSelfVideoRenderer.setScalingType(RendererCommon.ScalingType.SCALE_ASPECT_FIT)
+
+        localVideoTrack!!.addSink(binding!!.pipSelfVideoRenderer)
+    }
+
     private fun initGridAdapter() {
         Log.d(TAG, "initGridAdapter")
         val columns: Int
@@ -3211,17 +3225,20 @@ class CallActivity : CallBaseActivity() {
         binding!!.callInfosLinearLayout.visibility = View.GONE
         binding!!.selfVideoViewWrapper.visibility = View.GONE
         binding!!.callStates.callStateRelativeLayout.visibility = View.GONE
-        if (participantDisplayItems!!.size > 1) {
+
-            binding!!.pipCallConversationNameTextView.text = conversationName
-            binding!!.pipGroupCallOverlay.visibility = View.VISIBLE
-        } else {
-            binding!!.pipGroupCallOverlay.visibility = View.GONE
-        }
         binding!!.selfVideoRenderer.release()
+        if (participantDisplayItems!!.size > 1) {
+            binding!!.pipSelfVideoOverlay.visibility = View.VISIBLE
+            initSelfVideoViewForPipMode()
+        } else {
+            binding!!.pipSelfVideoOverlay.visibility = View.GONE
+        }
     }
 
     override fun updateUiForNormalMode() {
         Log.d(TAG, "updateUiForNormalMode")
+        binding!!.pipSelfVideoOverlay.visibility = View.GONE
+
         if (isVoiceOnlyCall) {
             binding!!.callControls.visibility = View.VISIBLE
         } else {
@@ -3231,7 +3248,6 @@ class CallActivity : CallBaseActivity() {
         initViews()
         binding!!.callInfosLinearLayout.visibility = View.VISIBLE
         binding!!.selfVideoViewWrapper.visibility = View.VISIBLE
-        binding!!.pipGroupCallOverlay.visibility = View.GONE
     }
 
     override fun suppressFitsSystemWindows() {

app/src/main/res/layout/call_activity.xml

@@ -331,7 +331,7 @@
     </LinearLayout>
 
     <LinearLayout
-        android:id="@+id/pipGroupCallOverlay"
+        android:id="@+id/pipSelfVideoOverlay"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
         android:background="@color/black"
@@ -339,27 +339,13 @@
         android:orientation="vertical"
         android:visibility="gone">
 
-        <TextView
+        <org.webrtc.SurfaceViewRenderer
-            android:id="@+id/pipCallConversationNameTextView"
+            android:id="@+id/pipSelfVideoRenderer"
             android:layout_width="match_parent"
-            android:layout_height="wrap_content"
+            android:layout_height="match_parent"
-            android:layout_marginStart="5dp"
+            android:layout_gravity="center"
-            android:layout_marginTop="-30dp"
+            android:clickable="false"
-            android:layout_marginEnd="5dp"
+            tools:visibility="visible" />
-            android:layout_marginBottom="15dp"
-            android:ellipsize="end"
-            android:maxLines="3"
-            android:textAlignment="center"
-            android:textColor="@color/white"
-            android:textSize="16sp"
-            tools:text="our group call" />
-
-        <ImageView
-            android:layout_width="80dp"
-            android:layout_height="80dp"
-            app:srcCompat="@drawable/ic_circular_group"
-            tools:ignore="ContentDescription" />
-
     </LinearLayout>
 
 </RelativeLayout>