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.google.android.exoplayer2.source;
  
  import com.google.android.exoplayer2.C;
  import com.google.android.exoplayer2.FormatHolder;
  import com.google.android.exoplayer2.decoder.DecoderInputBuffer;
  import java.io.IOException;
  
  /**
   * An empty {@link SampleStream}.
   */
  public final class EmptySampleStream implements SampleStream {
  
    @Override
    public boolean isReady() {
      return true;
    }
  
    @Override
    public void maybeThrowError() throws IOException {
      // Do nothing.
    }
  
    @Override
    public int readData(FormatHolder formatHolder, DecoderInputBuffer buffer,
        boolean formatRequired) {
      buffer.setFlags(C.BUFFER_FLAG_END_OF_STREAM);
      return C.RESULT_BUFFER_READ;
    }
  
    @Override
    public int skipData(long positionUs) {
      return 0;
    }
  
  }
  