/*
 * Copyright (C) 2014 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.exoplayer.dash.mpd;

import java.util.Collections;
import java.util.List;

/**
 * Represents a set of interchangeable encoded versions of a media content component.
 */
public final class AdaptationSet {

  public static final int TYPE_UNKNOWN = -1;
  public static final int TYPE_VIDEO = 0;
  public static final int TYPE_AUDIO = 1;
  public static final int TYPE_TEXT = 2;

  public final int id;

  public final int type;

  public final List<Representation> representations;
  public final List<ContentProtection> contentProtections;

  public AdaptationSet(int id, int type, List<Representation> representations,
      List<ContentProtection> contentProtections) {
    this.id = id;
    this.type = type;
    this.representations = Collections.unmodifiableList(representations);
    if (contentProtections == null) {
      this.contentProtections = Collections.emptyList();
    } else {
      this.contentProtections = Collections.unmodifiableList(contentProtections);
    }
  }

  public AdaptationSet(int id, int type, List<Representation> representations) {
    this(id, type, representations, null);
  }

  public boolean hasContentProtection() {
    return !contentProtections.isEmpty();
  }

}