content: /*
   * Copyright (C) 2018 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 android.media.audiofx;
  
  /**
   * DefaultEffect is the base class for controlling default audio effects linked into the
   * Android audio framework.
   * <p>DefaultEffects are effects that get attached automatically to all AudioTracks,
   * AudioRecords, and MediaPlayer instances meeting some criteria.
   * <p>Applications should not use the DefaultEffect class directly but one of its derived classes
   * to control specific types of defaults:
   * <ul>
   *   <li> {@link android.media.audiofx.SourceDefaultEffect}</li>
   *   <li> {@link android.media.audiofx.StreamDefaultEffect}</li>
   * </ul>
   * <p>Creating a DefaultEffect object will register the corresponding effect engine as a default
   * for the specified criteria. Whenever an audio session meets the criteria, an AudioEffect will
   * be created and attached to it using the specified priority.
   * @hide
   */
  
  public abstract class DefaultEffect {
      /**
       * System wide unique default effect ID.
       */
      int mId;
  }
  