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.text;
  
  import com.google.android.exoplayer2.decoder.Decoder;
  
  /**
   * Decodes {@link Subtitle}s from {@link SubtitleInputBuffer}s.
   */
  public interface SubtitleDecoder extends
      Decoder<SubtitleInputBuffer, SubtitleOutputBuffer, SubtitleDecoderException> {
  
    /**
     * Informs the decoder of the current playback position.
     * <p>
     * Must be called prior to each attempt to dequeue output buffers from the decoder.
     *
     * @param positionUs The current playback position in microseconds.
     */
    void setPositionUs(long positionUs);
  
  }
  