java/com/android/incallui/video/impl/res/layout/frag_videocall_surfaceview.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  ~ Copyright (C) 2017 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~      http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License
  -->
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:background="@android:color/black"
  android:keepScreenOn="true">

  <SurfaceView
    android:id="@+id/videocall_video_remote"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:importantForAccessibility="no"/>

  <TextView
    android:gravity="center"
    android:id="@+id/videocall_remote_video_off"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_gravity="center"
    android:accessibilityTraversalBefore="@+id/videocall_speaker_button"
    android:drawablePadding="8dp"
    android:drawableTop="@drawable/quantum_ic_videocam_off_white_36"
    android:drawableTint="@color/videocall_camera_off_tint"
    android:padding="64dp"
    android:text="@string/videocall_remote_video_off"
    android:textAppearance="@style/Dialer.Incall.TextAppearance"
    android:visibility="gone"
    tools:visibility="visible"/>

  <View
    android:id="@+id/videocall_fullscreen_background"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/videocall_overlay_background_color"/>

  <FrameLayout
    style="@style/VideoPreviewHolder"
    android:id="@+id/videocall_preview_root">

    <SurfaceView
      android:id="@+id/videocall_video_preview"
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:importantForAccessibility="no"/>

    <ImageView
      android:id="@+id/videocall_video_preview_off_overlay"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      android:layout_gravity="center"
      android:scaleType="center"
      android:src="@drawable/quantum_ic_videocam_off_white_24"
      android:tint="@color/videocall_camera_off_tint"
      android:tintMode="src_in"
      android:visibility="gone"
      android:importantForAccessibility="no"
      tools:visibility="visible"/>

    <ImageView
      android:id="@+id/videocall_video_preview_mute_overlay"
      android:layout_width="32dp"
      android:layout_height="32dp"
      android:layout_gravity="center"
      android:background="@drawable/videocall_background_circle_white"
      android:contentDescription="@string/incall_content_description_muted"
      android:scaleType="center"
      android:src="@drawable/quantum_ic_mic_off_black_24"
      android:visibility="gone"
      tools:visibility="visible"/>
  </FrameLayout>

  <View
    android:id="@+id/videocall_green_screen_background"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@color/videocall_overlay_background_color"/>

  <include
    layout="@layout/videocall_controls_surfaceview"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

  <FrameLayout
    android:id="@+id/videocall_on_hold_banner"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_gravity="top"/>

</FrameLayout>