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.C;
  import com.google.android.exoplayer2.util.Util;
  import java.util.Arrays;
  
  /**
   * Chapter information ID3 frame.
   */
  public final class ChapterFrame extends Id3Frame {
  
    public static final String ID = "CHAP";
  
    public final String chapterId;
    public final int startTimeMs;
    public final int endTimeMs;
    /**
     * The byte offset of the start of the chapter, or {@link C#POSITION_UNSET} if not set.
     */
    public final long startOffset;
    /**
     * The byte offset of the end of the chapter, or {@link C#POSITION_UNSET} if not set.
     */
    public final long endOffset;
    private final Id3Frame[] subFrames;
  
    public ChapterFrame(String chapterId, int startTimeMs, int endTimeMs, long startOffset,
        long endOffset, Id3Frame[] subFrames) {
      super(ID);
      this.chapterId = chapterId;
      this.startTimeMs = startTimeMs;
      this.endTimeMs = endTimeMs;
      this.startOffset = startOffset;
      this.endOffset = endOffset;
      this.subFrames = subFrames;
    }
  
    /* package */ ChapterFrame(Parcel in) {
      super(ID);
      this.chapterId = in.readString();
      this.startTimeMs = in.readInt();
      this.endTimeMs = in.readInt();
      this.startOffset = in.readLong();
      this.endOffset = in.readLong();
      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;
      }
      ChapterFrame other = (ChapterFrame) obj;
      return startTimeMs == other.startTimeMs
          && endTimeMs == other.endTimeMs
          && startOffset == other.startOffset
          && endOffset == other.endOffset
          && Util.areEqual(chapterId, other.chapterId)
          && Arrays.equals(subFrames, other.subFrames);
    }
  
    @Override
    public int hashCode() {
      int result = 17;
      result = 31 * result + startTimeMs;
      result = 31 * result + endTimeMs;
      result = 31 * result + (int) startOffset;
      result = 31 * result + (int) endOffset;
      result = 31 * result + (chapterId != null ? chapterId.hashCode() : 0);
      return result;
    }
  
    @Override
    public void writeToParcel(Parcel dest, int flags) {
      dest.writeString(chapterId);
      dest.writeInt(startTimeMs);
      dest.writeInt(endTimeMs);
      dest.writeLong(startOffset);
      dest.writeLong(endOffset);
      dest.writeInt(subFrames.length);
      for (Id3Frame subFrame : subFrames) {
        dest.writeParcelable(subFrame, 0);
      }
    }
  
    @Override
    public int describeContents() {
      return 0;
    }
  
    public static final Creator<ChapterFrame> CREATOR = new Creator<ChapterFrame>() {
  
      @Override
      public ChapterFrame createFromParcel(Parcel in) {
        return new ChapterFrame(in);
      }
  
      @Override
      public ChapterFrame[] newArray(int size) {
        return new ChapterFrame[size];
      }
  
    };
  
  }
  