content: /*
   * 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.
   */
  
  package com.android.server.audio;
  
  public interface PlayerFocusEnforcer {
  
      /**
       * Ducks the players associated with the "loser" focus owner (i.e. same UID). Returns true if
       * at least one active player was found and ducked, false otherwise.
       * @param winner
       * @param loser
       * @return
       */
      public boolean duckPlayers(FocusRequester winner, FocusRequester loser, boolean forceDuck);
  
      public void unduckPlayers(FocusRequester winner);
  
      public void mutePlayersForCall(int[] usagesToMute);
  
      public void unmutePlayersForCall();
  }