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.metadata.id3;
  
  import android.os.Parcel;
  import com.google.android.exoplayer2.util.Util;
  import java.util.Arrays;
  
  /**
   * Chapter table of contents ID3 frame.
   */
  public final class ChapterTocFrame extends Id3Frame {
  
    public static final String ID = "CTOC";
  
    public final String elementId;
    public final boolean isRoot;
    public final boolean isOrdered;
    public final String[] children;
    private final Id3Frame[] subFrames;
  
    public ChapterTocFrame(String elementId, boolean isRoot, boolean isOrdered, String[] children,
        Id3Frame[] subFrames) {
      super(ID);
      this.elementId = elementId;
      this.isRoot = isRoot;
      this.isOrdered = isOrdered;
      this.children = children;
      this.subFrames = subFrames;
    }
  
    /* package */ ChapterTocFrame(Parcel in) {
      super(ID);
      this.elementId = in.readString();
      this.isRoot = in.readByte() != 0;
      this.isOrdered = in.readByte() != 0;
      this.children = in.createStringArray();
      int subFrameCount = in.readInt();
      subFrames = new Id3Frame[subFrameCount];
      for (int i = 0; i < subFrameCount; i++) {
        subFrames[i] = in.readParcelable(Id3Frame.class.getClassLoader());
      }
    }
  
    /**
     * Returns the number of sub-frames.
     */
    public int getSubFrameCount() {
      return subFrames.length;
    }
  
    /**
     * Returns the sub-frame at {@code index}.
     */
    public Id3Frame getSubFrame(int index) {
      return subFrames[index];
    }
  
    @Override
    public boolean equals(Object obj) {
      if (this == obj) {
        return true;
      }
      if (obj == null || getClass() != obj.getClass()) {
        return false;
      }
      ChapterTocFrame other = (ChapterTocFrame) obj;
      return isRoot == other.isRoot
          && isOrdered == other.isOrdered
          && Util.areEqual(elementId, other.elementId)
          && Arrays.equals(children, other.children)
          && Arrays.equals(subFrames, other.subFrames);
    }
  
    @Override
    public int hashCode() {
      int result = 17;
      result = 31 * result + (isRoot ? 1 : 0);
      result = 31 * result + (isOrdered ? 1 : 0);
      result = 31 * result + (elementId != null ? elementId.hashCode() : 0);
      return result;
    }
  
    @Override
    public void writeToParcel(Parcel dest, int flags) {
      dest.writeString(elementId);
      dest.writeByte((byte) (isRoot ? 1 : 0));
      dest.writeByte((byte) (isOrdered ? 1 : 0));
      dest.writeStringArray(children);
      dest.writeInt(subFrames.length);
      for (Id3Frame subFrame : subFrames) {
        dest.writeParcelable(subFrame, 0);
      }
    }
  
    public static final Creator<ChapterTocFrame> CREATOR = new Creator<ChapterTocFrame>() {
  
      @Override
      public ChapterTocFrame createFromParcel(Parcel in) {
        return new ChapterTocFrame(in);
      }
  
      @Override
      public ChapterTocFrame[] newArray(int size) {
        return new ChapterTocFrame[size];
      }
  
    };
  
  }
  