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.smoothstreaming.manifest;
  
  import android.os.Parcel;
  import android.os.Parcelable;
  import android.support.annotation.NonNull;
  
  /**
   * Uniquely identifies a track in a {@link SsManifest}.
   */
  public final class TrackKey implements Parcelable, Comparable<TrackKey> {
  
    public final int streamElementIndex;
    public final int trackIndex;
  
    public TrackKey(int streamElementIndex, int trackIndex) {
      this.streamElementIndex = streamElementIndex;
      this.trackIndex = trackIndex;
    }
  
    @Override
    public String toString() {
      return streamElementIndex + "." + trackIndex;
    }
  
    // Parcelable implementation.
  
    @Override
    public int describeContents() {
      return 0;
    }
  
    @Override
    public void writeToParcel(Parcel dest, int flags) {
      dest.writeInt(streamElementIndex);
      dest.writeInt(trackIndex);
    }
  
    public static final Creator<TrackKey> CREATOR = new Creator<TrackKey>() {
      @Override
      public TrackKey createFromParcel(Parcel in) {
        return new TrackKey(in.readInt(), in.readInt());
      }
  
      @Override
      public TrackKey[] newArray(int size) {
        return new TrackKey[size];
      }
    };
  
    // Comparable implementation.
  
    @Override
    public int compareTo(@NonNull TrackKey o) {
      int result = streamElementIndex - o.streamElementIndex;
      if (result == 0) {
        result = trackIndex - o.trackIndex;
      }
      return result;
    }
  
  }
  