content: /*
   * Copyright (C) 2016 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.google.android.exoplayer2.util;
  
  import com.google.android.exoplayer2.PlaybackParameters;
  
  /** Tracks the progression of media time. */
  public interface MediaClock {
  
    /** Returns the current media position in microseconds. */
    long getPositionUs();
  
    /**
     * Attempts to set the playback parameters. The media clock may override the speed if changing the
     * playback parameters is not supported.
     *
     * @param playbackParameters The playback parameters to attempt to set.
     */
    void setPlaybackParameters(PlaybackParameters playbackParameters);
  
    /** Returns the active playback parameters. */
    PlaybackParameters getPlaybackParameters();
  }
  