content: /*
   * Copyright (C) 2019 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.hls;
  
  import android.os.Parcel;
  import android.os.Parcelable;
  import android.text.TextUtils;
  import androidx.annotation.Nullable;
  import com.google.android.exoplayer2.Format;
  import com.google.android.exoplayer2.metadata.Metadata;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  
  /** Holds metadata associated to an HLS media track. */
  public final class HlsTrackMetadataEntry implements Metadata.Entry {
  
    /** Holds attributes defined in an EXT-X-STREAM-INF tag. */
    public static final class VariantInfo implements Parcelable {
  
      /**
       * The average bitrate as declared by the AVERAGE-BANDWIDTH attribute of the EXT-X-STREAM-INF
       * tag, or {@link Format#NO_VALUE} if the attribute is not declared.
       */
      public final int averageBitrate;
  
      /** The peak bitrate as declared by the BANDWIDTH attribute of the EXT-X-STREAM-INF tag. */
      public final int peakBitrate;
  
      /**
       * The VIDEO value as defined in the EXT-X-STREAM-INF tag, or null if the VIDEO attribute is not
       * present.
       */
      @Nullable public final String videoGroupId;
  
      /**
       * The AUDIO value as defined in the EXT-X-STREAM-INF tag, or null if the AUDIO attribute is not
       * present.
       */
      @Nullable public final String audioGroupId;
  
      /**
       * The SUBTITLES value as defined in the EXT-X-STREAM-INF tag, or null if the SUBTITLES
       * attribute is not present.
       */
      @Nullable public final String subtitleGroupId;
  
      /**
       * The CLOSED-CAPTIONS value as defined in the EXT-X-STREAM-INF tag, or null if the
       * CLOSED-CAPTIONS attribute is not present.
       */
      @Nullable public final String captionGroupId;
  
      /**
       * Creates an instance.
       *
       * @param averageBitrate See {@link #averageBitrate}.
       * @param peakBitrate See {@link #peakBitrate}.
       * @param videoGroupId See {@link #videoGroupId}.
       * @param audioGroupId See {@link #audioGroupId}.
       * @param subtitleGroupId See {@link #subtitleGroupId}.
       * @param captionGroupId See {@link #captionGroupId}.
       */
      public VariantInfo(
          int averageBitrate,
          int peakBitrate,
          @Nullable String videoGroupId,
          @Nullable String audioGroupId,
          @Nullable String subtitleGroupId,
          @Nullable String captionGroupId) {
        this.averageBitrate = averageBitrate;
        this.peakBitrate = peakBitrate;
        this.videoGroupId = videoGroupId;
        this.audioGroupId = audioGroupId;
        this.subtitleGroupId = subtitleGroupId;
        this.captionGroupId = captionGroupId;
      }
  
      /* package */ VariantInfo(Parcel in) {
        averageBitrate = in.readInt();
        peakBitrate = in.readInt();
        videoGroupId = in.readString();
        audioGroupId = in.readString();
        subtitleGroupId = in.readString();
        captionGroupId = in.readString();
      }
  
      @Override
      public boolean equals(@Nullable Object other) {
        if (this == other) {
          return true;
        }
        if (other == null || getClass() != other.getClass()) {
          return false;
        }
        VariantInfo that = (VariantInfo) other;
        return averageBitrate == that.averageBitrate
            && peakBitrate == that.peakBitrate
            && TextUtils.equals(videoGroupId, that.videoGroupId)
            && TextUtils.equals(audioGroupId, that.audioGroupId)
            && TextUtils.equals(subtitleGroupId, that.subtitleGroupId)
            && TextUtils.equals(captionGroupId, that.captionGroupId);
      }
  
      @Override
      public int hashCode() {
        int result = averageBitrate;
        result = 31 * result + peakBitrate;
        result = 31 * result + (videoGroupId != null ? videoGroupId.hashCode() : 0);
        result = 31 * result + (audioGroupId != null ? audioGroupId.hashCode() : 0);
        result = 31 * result + (subtitleGroupId != null ? subtitleGroupId.hashCode() : 0);
        result = 31 * result + (captionGroupId != null ? captionGroupId.hashCode() : 0);
        return result;
      }
  
      // Parcelable implementation.
  
      @Override
      public int describeContents() {
        return 0;
      }
  
      @Override
      public void writeToParcel(Parcel dest, int flags) {
        dest.writeInt(averageBitrate);
        dest.writeInt(peakBitrate);
        dest.writeString(videoGroupId);
        dest.writeString(audioGroupId);
        dest.writeString(subtitleGroupId);
        dest.writeString(captionGroupId);
      }
  
      public static final Parcelable.Creator<VariantInfo> CREATOR =
          new Parcelable.Creator<VariantInfo>() {
            @Override
            public VariantInfo createFromParcel(Parcel in) {
              return new VariantInfo(in);
            }
  
            @Override
            public VariantInfo[] newArray(int size) {
              return new VariantInfo[size];
            }
          };
    }
  
    /**
     * The GROUP-ID value of this track, if the track is derived from an EXT-X-MEDIA tag. Null if the
     * track is not derived from an EXT-X-MEDIA TAG.
     */
    @Nullable public final String groupId;
    /**
     * The NAME value of this track, if the track is derived from an EXT-X-MEDIA tag. Null if the
     * track is not derived from an EXT-X-MEDIA TAG.
     */
    @Nullable public final String name;
    /**
     * The EXT-X-STREAM-INF tags attributes associated with this track. This field is non-applicable
     * (and therefore empty) if this track is derived from an EXT-X-MEDIA tag.
     */
    public final List<VariantInfo> variantInfos;
  
    /**
     * Creates an instance.
     *
     * @param groupId See {@link #groupId}.
     * @param name See {@link #name}.
     * @param variantInfos See {@link #variantInfos}.
     */
    public HlsTrackMetadataEntry(
        @Nullable String groupId, @Nullable String name, List<VariantInfo> variantInfos) {
      this.groupId = groupId;
      this.name = name;
      this.variantInfos = Collections.unmodifiableList(new ArrayList<>(variantInfos));
    }
  
    /* package */ HlsTrackMetadataEntry(Parcel in) {
      groupId = in.readString();
      name = in.readString();
      int variantInfoSize = in.readInt();
      ArrayList<VariantInfo> variantInfos = new ArrayList<>(variantInfoSize);
      for (int i = 0; i < variantInfoSize; i++) {
        variantInfos.add(in.readParcelable(VariantInfo.class.getClassLoader()));
      }
      this.variantInfos = Collections.unmodifiableList(variantInfos);
    }
  
    @Override
    public String toString() {
      return "HlsTrackMetadataEntry" + (groupId != null ? (" [" + groupId + ", " + name + "]") : "");
    }
  
    @Override
    public boolean equals(@Nullable Object other) {
      if (this == other) {
        return true;
      }
      if (other == null || getClass() != other.getClass()) {
        return false;
      }
  
      HlsTrackMetadataEntry that = (HlsTrackMetadataEntry) other;
      return TextUtils.equals(groupId, that.groupId)
          && TextUtils.equals(name, that.name)
          && variantInfos.equals(that.variantInfos);
    }
  
    @Override
    public int hashCode() {
      int result = groupId != null ? groupId.hashCode() : 0;
      result = 31 * result + (name != null ? name.hashCode() : 0);
      result = 31 * result + variantInfos.hashCode();
      return result;
    }
  
    // Parcelable implementation.
  
    @Override
    public int describeContents() {
      return 0;
    }
  
    @Override
    public void writeToParcel(Parcel dest, int flags) {
      dest.writeString(groupId);
      dest.writeString(name);
      int variantInfosSize = variantInfos.size();
      dest.writeInt(variantInfosSize);
      for (int i = 0; i < variantInfosSize; i++) {
        dest.writeParcelable(variantInfos.get(i), /* parcelableFlags= */ 0);
      }
    }
  
    public static final Parcelable.Creator<HlsTrackMetadataEntry> CREATOR =
        new Parcelable.Creator<HlsTrackMetadataEntry>() {
          @Override
          public HlsTrackMetadataEntry createFromParcel(Parcel in) {
            return new HlsTrackMetadataEntry(in);
          }
  
          @Override
          public HlsTrackMetadataEntry[] newArray(int size) {
            return new HlsTrackMetadataEntry[size];
          }
        };
  }
  