Java Code Examples for com.google.android.exoplayer2.util.XmlPullParserUtil#isStartTag()

protected List<SegmentTimelineElement> parseSegmentTimeline(XmlPullParser xpp)
    throws XmlPullParserException, IOException {
  List<SegmentTimelineElement> segmentTimeline = new ArrayList<>();
  long elapsedTime = 0;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "S")) {
      elapsedTime = parseLong(xpp, "t", elapsedTime);
      long duration = parseLong(xpp, "d", C.TIME_UNSET);
      int count = 1 + parseInt(xpp, "r", 0);
      for (int i = 0; i < count; i++) {
        segmentTimeline.add(buildSegmentTimelineElement(elapsedTime, duration));
        elapsedTime += duration;
      }
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentTimeline"));
  return segmentTimeline;
}
 

protected List<SegmentTimelineElement> parseSegmentTimeline(XmlPullParser xpp)
    throws XmlPullParserException, IOException {
  List<SegmentTimelineElement> segmentTimeline = new ArrayList<>();
  long elapsedTime = 0;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "S")) {
      elapsedTime = parseLong(xpp, "t", elapsedTime);
      long duration = parseLong(xpp, "d", C.TIME_UNSET);
      int count = 1 + parseInt(xpp, "r", 0);
      for (int i = 0; i < count; i++) {
        segmentTimeline.add(buildSegmentTimelineElement(elapsedTime, duration));
        elapsedTime += duration;
      }
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentTimeline"));
  return segmentTimeline;
}
 

protected ProgramInformation parseProgramInformation(XmlPullParser xpp)
    throws IOException, XmlPullParserException {
  String title = null;
  String source = null;
  String copyright = null;
  String moreInformationURL = parseString(xpp, "moreInformationURL", null);
  String lang = parseString(xpp, "lang", null);
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Title")) {
      title = xpp.nextText();
    } else if (XmlPullParserUtil.isStartTag(xpp, "Source")) {
      source = xpp.nextText();
    } else if (XmlPullParserUtil.isStartTag(xpp, "Copyright")) {
      copyright = xpp.nextText();
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "ProgramInformation"));
  return new ProgramInformation(title, source, copyright, moreInformationURL, lang);
}
 

protected SegmentList parseSegmentList(XmlPullParser xpp, SegmentList parent)
    throws XmlPullParserException, IOException {

  long timescale = parseLong(xpp, "timescale", parent != null ? parent.timescale : 1);
  long presentationTimeOffset = parseLong(xpp, "presentationTimeOffset",
      parent != null ? parent.presentationTimeOffset : 0);
  long duration = parseLong(xpp, "duration", parent != null ? parent.duration : C.TIME_UNSET);
  long startNumber = parseLong(xpp, "startNumber", parent != null ? parent.startNumber : 1);

  RangedUri initialization = null;
  List<SegmentTimelineElement> timeline = null;
  List<RangedUri> segments = null;

  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Initialization")) {
      initialization = parseInitialization(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTimeline")) {
      timeline = parseSegmentTimeline(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentURL")) {
      if (segments == null) {
        segments = new ArrayList<>();
      }
      segments.add(parseSegmentUrl(xpp));
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentList"));

  if (parent != null) {
    initialization = initialization != null ? initialization : parent.initialization;
    timeline = timeline != null ? timeline : parent.segmentTimeline;
    segments = segments != null ? segments : parent.mediaSegments;
  }

  return buildSegmentList(initialization, timescale, presentationTimeOffset,
      startNumber, duration, timeline, segments);
}
 

protected SingleSegmentBase parseSegmentBase(XmlPullParser xpp, SingleSegmentBase parent)
    throws XmlPullParserException, IOException {

  long timescale = parseLong(xpp, "timescale", parent != null ? parent.timescale : 1);
  long presentationTimeOffset = parseLong(xpp, "presentationTimeOffset",
      parent != null ? parent.presentationTimeOffset : 0);

  long indexStart = parent != null ? parent.indexStart : 0;
  long indexLength = parent != null ? parent.indexLength : 0;
  String indexRangeText = xpp.getAttributeValue(null, "indexRange");
  if (indexRangeText != null) {
    String[] indexRange = indexRangeText.split("-");
    indexStart = Long.parseLong(indexRange[0]);
    indexLength = Long.parseLong(indexRange[1]) - indexStart + 1;
  }

  RangedUri initialization = parent != null ? parent.initialization : null;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Initialization")) {
      initialization = parseInitialization(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentBase"));

  return buildSingleSegmentBase(initialization, timescale, presentationTimeOffset, indexStart,
      indexLength);
}
 

protected SegmentList parseSegmentList(XmlPullParser xpp, SegmentList parent)
    throws XmlPullParserException, IOException {

  long timescale = parseLong(xpp, "timescale", parent != null ? parent.timescale : 1);
  long presentationTimeOffset = parseLong(xpp, "presentationTimeOffset",
      parent != null ? parent.presentationTimeOffset : 0);
  long duration = parseLong(xpp, "duration", parent != null ? parent.duration : C.TIME_UNSET);
  long startNumber = parseLong(xpp, "startNumber", parent != null ? parent.startNumber : 1);

  RangedUri initialization = null;
  List<SegmentTimelineElement> timeline = null;
  List<RangedUri> segments = null;

  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Initialization")) {
      initialization = parseInitialization(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTimeline")) {
      timeline = parseSegmentTimeline(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentURL")) {
      if (segments == null) {
        segments = new ArrayList<>();
      }
      segments.add(parseSegmentUrl(xpp));
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentList"));

  if (parent != null) {
    initialization = initialization != null ? initialization : parent.initialization;
    timeline = timeline != null ? timeline : parent.segmentTimeline;
    segments = segments != null ? segments : parent.mediaSegments;
  }

  return buildSegmentList(initialization, timescale, presentationTimeOffset,
      startNumber, duration, timeline, segments);
}
 

private Map<String, TtmlStyle> parseHeader(
    XmlPullParser xmlParser,
    Map<String, TtmlStyle> globalStyles,
    CellResolution cellResolution,
    TtsExtent ttsExtent,
    Map<String, TtmlRegion> globalRegions,
    Map<String, String> imageMap)
    throws IOException, XmlPullParserException {
  do {
    xmlParser.next();
    if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_STYLE)) {
      String parentStyleId = XmlPullParserUtil.getAttributeValue(xmlParser, ATTR_STYLE);
      TtmlStyle style = parseStyleAttributes(xmlParser, new TtmlStyle());
      if (parentStyleId != null) {
        for (String id : parseStyleIds(parentStyleId)) {
          style.chain(globalStyles.get(id));
        }
      }
      if (style.getId() != null) {
        globalStyles.put(style.getId(), style);
      }
    } else if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_REGION)) {
      TtmlRegion ttmlRegion = parseRegionAttributes(xmlParser, cellResolution, ttsExtent);
      if (ttmlRegion != null) {
        globalRegions.put(ttmlRegion.id, ttmlRegion);
      }
    } else if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_METADATA)) {
      parseMetadata(xmlParser, imageMap);
    }
  } while (!XmlPullParserUtil.isEndTag(xmlParser, TtmlNode.TAG_HEAD));
  return globalStyles;
}
 

private Map<String, TtmlStyle> parseHeader(
    XmlPullParser xmlParser,
    Map<String, TtmlStyle> globalStyles,
    Map<String, TtmlRegion> globalRegions,
    CellResolution cellResolution)
    throws IOException, XmlPullParserException {
  do {
    xmlParser.next();
    if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_STYLE)) {
      String parentStyleId = XmlPullParserUtil.getAttributeValue(xmlParser, ATTR_STYLE);
      TtmlStyle style = parseStyleAttributes(xmlParser, new TtmlStyle());
      if (parentStyleId != null) {
        for (String id : parseStyleIds(parentStyleId)) {
          style.chain(globalStyles.get(id));
        }
      }
      if (style.getId() != null) {
        globalStyles.put(style.getId(), style);
      }
    } else if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_REGION)) {
      TtmlRegion ttmlRegion = parseRegionAttributes(xmlParser, cellResolution);
      if (ttmlRegion != null) {
        globalRegions.put(ttmlRegion.id, ttmlRegion);
      }
    }
  } while (!XmlPullParserUtil.isEndTag(xmlParser, TtmlNode.TAG_HEAD));
  return globalStyles;
}
 

protected SingleSegmentBase parseSegmentBase(
    XmlPullParser xpp, @Nullable SingleSegmentBase parent)
    throws XmlPullParserException, IOException {

  long timescale = parseLong(xpp, "timescale", parent != null ? parent.timescale : 1);
  long presentationTimeOffset = parseLong(xpp, "presentationTimeOffset",
      parent != null ? parent.presentationTimeOffset : 0);

  long indexStart = parent != null ? parent.indexStart : 0;
  long indexLength = parent != null ? parent.indexLength : 0;
  String indexRangeText = xpp.getAttributeValue(null, "indexRange");
  if (indexRangeText != null) {
    String[] indexRange = indexRangeText.split("-");
    indexStart = Long.parseLong(indexRange[0]);
    indexLength = Long.parseLong(indexRange[1]) - indexStart + 1;
  }

  RangedUri initialization = parent != null ? parent.initialization : null;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Initialization")) {
      initialization = parseInitialization(xpp);
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentBase"));

  return buildSingleSegmentBase(initialization, timescale, presentationTimeOffset, indexStart,
      indexLength);
}
 

protected Pair<Period, Long> parsePeriod(XmlPullParser xpp, String baseUrl, long defaultStartMs)
    throws XmlPullParserException, IOException {
  String id = xpp.getAttributeValue(null, "id");
  long startMs = parseDuration(xpp, "start", defaultStartMs);
  long durationMs = parseDuration(xpp, "duration", C.TIME_UNSET);
  SegmentBase segmentBase = null;
  List<AdaptationSet> adaptationSets = new ArrayList<>();
  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "AdaptationSet")) {
      adaptationSets.add(parseAdaptationSet(xpp, baseUrl, segmentBase));
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, null);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, null);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase = parseSegmentTemplate(xpp, null);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "Period"));

  return Pair.create(buildPeriod(id, startMs, adaptationSets), durationMs);
}
 

protected SegmentTemplate parseSegmentTemplate(XmlPullParser xpp, SegmentTemplate parent)
    throws XmlPullParserException, IOException {
  long timescale = parseLong(xpp, "timescale", parent != null ? parent.timescale : 1);
  long presentationTimeOffset = parseLong(xpp, "presentationTimeOffset",
      parent != null ? parent.presentationTimeOffset : 0);
  long duration = parseLong(xpp, "duration", parent != null ? parent.duration : C.TIME_UNSET);
  long startNumber = parseLong(xpp, "startNumber", parent != null ? parent.startNumber : 1);
  UrlTemplate mediaTemplate = parseUrlTemplate(xpp, "media",
      parent != null ? parent.mediaTemplate : null);
  UrlTemplate initializationTemplate = parseUrlTemplate(xpp, "initialization",
      parent != null ? parent.initializationTemplate : null);

  RangedUri initialization = null;
  List<SegmentTimelineElement> timeline = null;

  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "Initialization")) {
      initialization = parseInitialization(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTimeline")) {
      timeline = parseSegmentTimeline(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "SegmentTemplate"));

  if (parent != null) {
    initialization = initialization != null ? initialization : parent.initialization;
    timeline = timeline != null ? timeline : parent.segmentTimeline;
  }

  return buildSegmentTemplate(initialization, timescale, presentationTimeOffset,
      startNumber, duration, timeline, initializationTemplate, mediaTemplate);
}
 

private Map<String, TtmlStyle> parseHeader(
    XmlPullParser xmlParser,
    Map<String, TtmlStyle> globalStyles,
    Map<String, TtmlRegion> globalRegions,
    CellResolution cellResolution)
    throws IOException, XmlPullParserException {
  do {
    xmlParser.next();
    if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_STYLE)) {
      String parentStyleId = XmlPullParserUtil.getAttributeValue(xmlParser, ATTR_STYLE);
      TtmlStyle style = parseStyleAttributes(xmlParser, new TtmlStyle());
      if (parentStyleId != null) {
        for (String id : parseStyleIds(parentStyleId)) {
          style.chain(globalStyles.get(id));
        }
      }
      if (style.getId() != null) {
        globalStyles.put(style.getId(), style);
      }
    } else if (XmlPullParserUtil.isStartTag(xmlParser, TtmlNode.TAG_REGION)) {
      TtmlRegion ttmlRegion = parseRegionAttributes(xmlParser, cellResolution);
      if (ttmlRegion != null) {
        globalRegions.put(ttmlRegion.id, ttmlRegion);
      }
    }
  } while (!XmlPullParserUtil.isEndTag(xmlParser, TtmlNode.TAG_HEAD));
  return globalStyles;
}
 

protected RepresentationInfo parseRepresentation(XmlPullParser xpp, String baseUrl,
    String adaptationSetMimeType, String adaptationSetCodecs, int adaptationSetWidth,
    int adaptationSetHeight, float adaptationSetFrameRate, int adaptationSetAudioChannels,
    int adaptationSetAudioSamplingRate, String adaptationSetLanguage,
    @C.SelectionFlags int adaptationSetSelectionFlags,
    List<SchemeValuePair> adaptationSetAccessibilityDescriptors, SegmentBase segmentBase)
    throws XmlPullParserException, IOException {
  String id = xpp.getAttributeValue(null, "id");
  int bandwidth = parseInt(xpp, "bandwidth", Format.NO_VALUE);

  String mimeType = parseString(xpp, "mimeType", adaptationSetMimeType);
  String codecs = parseString(xpp, "codecs", adaptationSetCodecs);
  int width = parseInt(xpp, "width", adaptationSetWidth);
  int height = parseInt(xpp, "height", adaptationSetHeight);
  float frameRate = parseFrameRate(xpp, adaptationSetFrameRate);
  int audioChannels = adaptationSetAudioChannels;
  int audioSamplingRate = parseInt(xpp, "audioSamplingRate", adaptationSetAudioSamplingRate);
  ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
  ArrayList<SchemeValuePair> inbandEventStreams = new ArrayList<>();

  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
      audioChannels = parseAudioChannelConfiguration(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase = parseSegmentTemplate(xpp, (SegmentTemplate) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
      SchemeData contentProtection = parseContentProtection(xpp);
      if (contentProtection != null) {
        drmSchemeDatas.add(contentProtection);
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
      inbandEventStreams.add(parseInbandEventStream(xpp));
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "Representation"));

  Format format = buildFormat(id, mimeType, width, height, frameRate, audioChannels,
      audioSamplingRate, bandwidth, adaptationSetLanguage, adaptationSetSelectionFlags,
      adaptationSetAccessibilityDescriptors, codecs);
  segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();

  return new RepresentationInfo(format, baseUrl, segmentBase, drmSchemeDatas, inbandEventStreams);
}
 

/**
 * Parses a ContentProtection element.
 *
 * @param xpp The parser from which to read.
 * @throws XmlPullParserException If an error occurs parsing the element.
 * @throws IOException If an error occurs reading the element.
 * @return The scheme type and/or {@link SchemeData} parsed from the ContentProtection element.
 *     Either or both may be null, depending on the ContentProtection element being parsed.
 */
protected Pair<String, SchemeData> parseContentProtection(XmlPullParser xpp)
    throws XmlPullParserException, IOException {
  String schemeType = null;
  String licenseServerUrl = null;
  byte[] data = null;
  UUID uuid = null;
  boolean requiresSecureDecoder = false;

  String schemeIdUri = xpp.getAttributeValue(null, "schemeIdUri");
  if (schemeIdUri != null) {
    switch (Util.toLowerInvariant(schemeIdUri)) {
      case "urn:mpeg:dash:mp4protection:2011":
        schemeType = xpp.getAttributeValue(null, "value");
        String defaultKid = XmlPullParserUtil.getAttributeValueIgnorePrefix(xpp, "default_KID");
        if (!TextUtils.isEmpty(defaultKid)
            && !"00000000-0000-0000-0000-000000000000".equals(defaultKid)) {
          String[] defaultKidStrings = defaultKid.split("\\s+");
          UUID[] defaultKids = new UUID[defaultKidStrings.length];
          for (int i = 0; i < defaultKidStrings.length; i++) {
            defaultKids[i] = UUID.fromString(defaultKidStrings[i]);
          }
          data = PsshAtomUtil.buildPsshAtom(C.COMMON_PSSH_UUID, defaultKids, null);
          uuid = C.COMMON_PSSH_UUID;
        }
        break;
      case "urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95":
        uuid = C.PLAYREADY_UUID;
        break;
      case "urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed":
        uuid = C.WIDEVINE_UUID;
        break;
      default:
        break;
    }
  }

  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "ms:laurl")) {
      licenseServerUrl = xpp.getAttributeValue(null, "licenseUrl");
    } else if (XmlPullParserUtil.isStartTag(xpp, "widevine:license")) {
      String robustnessLevel = xpp.getAttributeValue(null, "robustness_level");
      requiresSecureDecoder = robustnessLevel != null && robustnessLevel.startsWith("HW");
    } else if (data == null
        && XmlPullParserUtil.isStartTagIgnorePrefix(xpp, "pssh")
        && xpp.next() == XmlPullParser.TEXT) {
      // The cenc:pssh element is defined in 23001-7:2015.
      data = Base64.decode(xpp.getText(), Base64.DEFAULT);
      uuid = PsshAtomUtil.parseUuid(data);
      if (uuid == null) {
        Log.w(TAG, "Skipping malformed cenc:pssh data");
        data = null;
      }
    } else if (data == null
        && C.PLAYREADY_UUID.equals(uuid)
        && XmlPullParserUtil.isStartTag(xpp, "mspr:pro")
        && xpp.next() == XmlPullParser.TEXT) {
      // The mspr:pro element is defined in DASH Content Protection using Microsoft PlayReady.
      data =
          PsshAtomUtil.buildPsshAtom(
              C.PLAYREADY_UUID, Base64.decode(xpp.getText(), Base64.DEFAULT));
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "ContentProtection"));
  SchemeData schemeData =
      uuid != null
          ? new SchemeData(
              uuid, licenseServerUrl, MimeTypes.VIDEO_MP4, data, requiresSecureDecoder)
          : null;
  return Pair.create(schemeType, schemeData);
}
 

protected AdaptationSet parseAdaptationSet(XmlPullParser xpp, String baseUrl,
    SegmentBase segmentBase) throws XmlPullParserException, IOException {
  int id = parseInt(xpp, "id", AdaptationSet.ID_UNSET);
  int contentType = parseContentType(xpp);

  String mimeType = xpp.getAttributeValue(null, "mimeType");
  String codecs = xpp.getAttributeValue(null, "codecs");
  int width = parseInt(xpp, "width", Format.NO_VALUE);
  int height = parseInt(xpp, "height", Format.NO_VALUE);
  float frameRate = parseFrameRate(xpp, Format.NO_VALUE);
  int audioChannels = Format.NO_VALUE;
  int audioSamplingRate = parseInt(xpp, "audioSamplingRate", Format.NO_VALUE);
  String language = xpp.getAttributeValue(null, "lang");
  String label = xpp.getAttributeValue(null, "label");
  String drmSchemeType = null;
  ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
  ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
  ArrayList<Descriptor> accessibilityDescriptors = new ArrayList<>();
  ArrayList<Descriptor> roleDescriptors = new ArrayList<>();
  ArrayList<Descriptor> supplementalProperties = new ArrayList<>();
  List<RepresentationInfo> representationInfos = new ArrayList<>();

  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
      Pair<String, SchemeData> contentProtection = parseContentProtection(xpp);
      if (contentProtection.first != null) {
        drmSchemeType = contentProtection.first;
      }
      if (contentProtection.second != null) {
        drmSchemeDatas.add(contentProtection.second);
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentComponent")) {
      language = checkLanguageConsistency(language, xpp.getAttributeValue(null, "lang"));
      contentType = checkContentTypeConsistency(contentType, parseContentType(xpp));
    } else if (XmlPullParserUtil.isStartTag(xpp, "Role")) {
      roleDescriptors.add(parseDescriptor(xpp, "Role"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
      audioChannels = parseAudioChannelConfiguration(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "Accessibility")) {
      accessibilityDescriptors.add(parseDescriptor(xpp, "Accessibility"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "SupplementalProperty")) {
      supplementalProperties.add(parseDescriptor(xpp, "SupplementalProperty"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "Representation")) {
      RepresentationInfo representationInfo =
          parseRepresentation(
              xpp,
              baseUrl,
              mimeType,
              codecs,
              width,
              height,
              frameRate,
              audioChannels,
              audioSamplingRate,
              language,
              roleDescriptors,
              accessibilityDescriptors,
              supplementalProperties,
              segmentBase);
      contentType = checkContentTypeConsistency(contentType,
          getContentType(representationInfo.format));
      representationInfos.add(representationInfo);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase =
          parseSegmentTemplate(xpp, (SegmentTemplate) segmentBase, supplementalProperties);
    } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
      inbandEventStreams.add(parseDescriptor(xpp, "InbandEventStream"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "Label")) {
      label = parseLabel(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp)) {
      parseAdaptationSetChild(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "AdaptationSet"));

  // Build the representations.
  List<Representation> representations = new ArrayList<>(representationInfos.size());
  for (int i = 0; i < representationInfos.size(); i++) {
    representations.add(
        buildRepresentation(
            representationInfos.get(i),
            label,
            drmSchemeType,
            drmSchemeDatas,
            inbandEventStreams));
  }

  return buildAdaptationSet(id, contentType, representations, accessibilityDescriptors,
      supplementalProperties);
}
 

protected RepresentationInfo parseRepresentation(
    XmlPullParser xpp,
    String baseUrl,
    @Nullable String adaptationSetMimeType,
    @Nullable String adaptationSetCodecs,
    int adaptationSetWidth,
    int adaptationSetHeight,
    float adaptationSetFrameRate,
    int adaptationSetAudioChannels,
    int adaptationSetAudioSamplingRate,
    @Nullable String adaptationSetLanguage,
    List<Descriptor> adaptationSetRoleDescriptors,
    List<Descriptor> adaptationSetAccessibilityDescriptors,
    List<Descriptor> adaptationSetSupplementalProperties,
    @Nullable SegmentBase segmentBase,
    long periodDurationMs)
    throws XmlPullParserException, IOException {
  String id = xpp.getAttributeValue(null, "id");
  int bandwidth = parseInt(xpp, "bandwidth", Format.NO_VALUE);

  String mimeType = parseString(xpp, "mimeType", adaptationSetMimeType);
  String codecs = parseString(xpp, "codecs", adaptationSetCodecs);
  int width = parseInt(xpp, "width", adaptationSetWidth);
  int height = parseInt(xpp, "height", adaptationSetHeight);
  float frameRate = parseFrameRate(xpp, adaptationSetFrameRate);
  int audioChannels = adaptationSetAudioChannels;
  int audioSamplingRate = parseInt(xpp, "audioSamplingRate", adaptationSetAudioSamplingRate);
  String drmSchemeType = null;
  ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
  ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
  ArrayList<Descriptor> supplementalProperties = new ArrayList<>();

  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
      audioChannels = parseAudioChannelConfiguration(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase, periodDurationMs);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase =
          parseSegmentTemplate(
              xpp,
              (SegmentTemplate) segmentBase,
              adaptationSetSupplementalProperties,
              periodDurationMs);
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
      Pair<String, SchemeData> contentProtection = parseContentProtection(xpp);
      if (contentProtection.first != null) {
        drmSchemeType = contentProtection.first;
      }
      if (contentProtection.second != null) {
        drmSchemeDatas.add(contentProtection.second);
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
      inbandEventStreams.add(parseDescriptor(xpp, "InbandEventStream"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "SupplementalProperty")) {
      supplementalProperties.add(parseDescriptor(xpp, "SupplementalProperty"));
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "Representation"));

  Format format =
      buildFormat(
          id,
          mimeType,
          width,
          height,
          frameRate,
          audioChannels,
          audioSamplingRate,
          bandwidth,
          adaptationSetLanguage,
          adaptationSetRoleDescriptors,
          adaptationSetAccessibilityDescriptors,
          codecs,
          supplementalProperties);
  segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();

  return new RepresentationInfo(format, baseUrl, segmentBase, drmSchemeType, drmSchemeDatas,
      inbandEventStreams, Representation.REVISION_ID_DEFAULT);
}
 

protected RepresentationInfo parseRepresentation(
    XmlPullParser xpp,
    String baseUrl,
    String adaptationSetMimeType,
    String adaptationSetCodecs,
    int adaptationSetWidth,
    int adaptationSetHeight,
    float adaptationSetFrameRate,
    int adaptationSetAudioChannels,
    int adaptationSetAudioSamplingRate,
    String adaptationSetLanguage,
    List<Descriptor> adaptationSetRoleDescriptors,
    List<Descriptor> adaptationSetAccessibilityDescriptors,
    List<Descriptor> adaptationSetSupplementalProperties,
    SegmentBase segmentBase)
    throws XmlPullParserException, IOException {
  String id = xpp.getAttributeValue(null, "id");
  int bandwidth = parseInt(xpp, "bandwidth", Format.NO_VALUE);

  String mimeType = parseString(xpp, "mimeType", adaptationSetMimeType);
  String codecs = parseString(xpp, "codecs", adaptationSetCodecs);
  int width = parseInt(xpp, "width", adaptationSetWidth);
  int height = parseInt(xpp, "height", adaptationSetHeight);
  float frameRate = parseFrameRate(xpp, adaptationSetFrameRate);
  int audioChannels = adaptationSetAudioChannels;
  int audioSamplingRate = parseInt(xpp, "audioSamplingRate", adaptationSetAudioSamplingRate);
  String drmSchemeType = null;
  ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
  ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
  ArrayList<Descriptor> supplementalProperties = new ArrayList<>();

  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
      audioChannels = parseAudioChannelConfiguration(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase =
          parseSegmentTemplate(
              xpp, (SegmentTemplate) segmentBase, adaptationSetSupplementalProperties);
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
      Pair<String, SchemeData> contentProtection = parseContentProtection(xpp);
      if (contentProtection.first != null) {
        drmSchemeType = contentProtection.first;
      }
      if (contentProtection.second != null) {
        drmSchemeDatas.add(contentProtection.second);
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
      inbandEventStreams.add(parseDescriptor(xpp, "InbandEventStream"));
    } else if (XmlPullParserUtil.isStartTag(xpp, "SupplementalProperty")) {
      supplementalProperties.add(parseDescriptor(xpp, "SupplementalProperty"));
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "Representation"));

  Format format =
      buildFormat(
          id,
          mimeType,
          width,
          height,
          frameRate,
          audioChannels,
          audioSamplingRate,
          bandwidth,
          adaptationSetLanguage,
          adaptationSetRoleDescriptors,
          adaptationSetAccessibilityDescriptors,
          codecs,
          supplementalProperties);
  segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();

  return new RepresentationInfo(format, baseUrl, segmentBase, drmSchemeType, drmSchemeDatas,
      inbandEventStreams, Representation.REVISION_ID_DEFAULT);
}
 

/**
 * Parses a ContentProtection element.
 *
 * @param xpp The parser from which to read.
 * @throws XmlPullParserException If an error occurs parsing the element.
 * @throws IOException If an error occurs reading the element.
 * @return The scheme type and/or {@link SchemeData} parsed from the ContentProtection element.
 *     Either or both may be null, depending on the ContentProtection element being parsed.
 */
protected Pair<String, SchemeData> parseContentProtection(XmlPullParser xpp)
    throws XmlPullParserException, IOException {
  String schemeType = null;
  String licenseServerUrl = null;
  byte[] data = null;
  UUID uuid = null;
  boolean requiresSecureDecoder = false;

  String schemeIdUri = xpp.getAttributeValue(null, "schemeIdUri");
  if (schemeIdUri != null) {
    switch (Util.toLowerInvariant(schemeIdUri)) {
      case "urn:mpeg:dash:mp4protection:2011":
        schemeType = xpp.getAttributeValue(null, "value");
        String defaultKid = xpp.getAttributeValue(null, "cenc:default_KID");
        if (!TextUtils.isEmpty(defaultKid)
            && !"00000000-0000-0000-0000-000000000000".equals(defaultKid)) {
          String[] defaultKidStrings = defaultKid.split("\\s+");
          UUID[] defaultKids = new UUID[defaultKidStrings.length];
          for (int i = 0; i < defaultKidStrings.length; i++) {
            defaultKids[i] = UUID.fromString(defaultKidStrings[i]);
          }
          data = PsshAtomUtil.buildPsshAtom(C.COMMON_PSSH_UUID, defaultKids, null);
          uuid = C.COMMON_PSSH_UUID;
        }
        break;
      case "urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95":
        uuid = C.PLAYREADY_UUID;
        break;
      case "urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed":
        uuid = C.WIDEVINE_UUID;
        break;
      default:
        break;
    }
  }

  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "ms:laurl")) {
      licenseServerUrl = xpp.getAttributeValue(null, "licenseUrl");
    } else if (XmlPullParserUtil.isStartTag(xpp, "widevine:license")) {
      String robustnessLevel = xpp.getAttributeValue(null, "robustness_level");
      requiresSecureDecoder = robustnessLevel != null && robustnessLevel.startsWith("HW");
    } else if (data == null) {
      if (XmlPullParserUtil.isStartTag(xpp, "cenc:pssh") && xpp.next() == XmlPullParser.TEXT) {
        // The cenc:pssh element is defined in 23001-7:2015.
        data = Base64.decode(xpp.getText(), Base64.DEFAULT);
        uuid = PsshAtomUtil.parseUuid(data);
        if (uuid == null) {
          Log.w(TAG, "Skipping malformed cenc:pssh data");
          data = null;
        }
      } else if (C.PLAYREADY_UUID.equals(uuid) && XmlPullParserUtil.isStartTag(xpp, "mspr:pro")
          && xpp.next() == XmlPullParser.TEXT) {
        // The mspr:pro element is defined in DASH Content Protection using Microsoft PlayReady.
        data = PsshAtomUtil.buildPsshAtom(C.PLAYREADY_UUID,
            Base64.decode(xpp.getText(), Base64.DEFAULT));
      }
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "ContentProtection"));
  SchemeData schemeData =
      uuid != null
          ? new SchemeData(
              uuid, licenseServerUrl, MimeTypes.VIDEO_MP4, data, requiresSecureDecoder)
          : null;
  return Pair.create(schemeType, schemeData);
}
 

protected DashManifest parseMediaPresentationDescription(XmlPullParser xpp,
    String baseUrl) throws XmlPullParserException, IOException {
  long availabilityStartTime = parseDateTime(xpp, "availabilityStartTime", C.TIME_UNSET);
  long durationMs = parseDuration(xpp, "mediaPresentationDuration", C.TIME_UNSET);
  long minBufferTimeMs = parseDuration(xpp, "minBufferTime", C.TIME_UNSET);
  String typeString = xpp.getAttributeValue(null, "type");
  boolean dynamic = "dynamic".equals(typeString);
  long minUpdateTimeMs = dynamic ? parseDuration(xpp, "minimumUpdatePeriod", C.TIME_UNSET)
      : C.TIME_UNSET;
  long timeShiftBufferDepthMs = dynamic
      ? parseDuration(xpp, "timeShiftBufferDepth", C.TIME_UNSET) : C.TIME_UNSET;
  long suggestedPresentationDelayMs = dynamic
      ? parseDuration(xpp, "suggestedPresentationDelay", C.TIME_UNSET) : C.TIME_UNSET;
  long publishTimeMs = parseDateTime(xpp, "publishTime", C.TIME_UNSET);
  ProgramInformation programInformation = null;
  UtcTimingElement utcTiming = null;
  Uri location = null;

  List<Period> periods = new ArrayList<>();
  long nextPeriodStartMs = dynamic ? C.TIME_UNSET : 0;
  boolean seenEarlyAccessPeriod = false;
  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "ProgramInformation")) {
      programInformation = parseProgramInformation(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "UTCTiming")) {
      utcTiming = parseUtcTiming(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "Location")) {
      location = Uri.parse(xpp.nextText());
    } else if (XmlPullParserUtil.isStartTag(xpp, "Period") && !seenEarlyAccessPeriod) {
      Pair<Period, Long> periodWithDurationMs = parsePeriod(xpp, baseUrl, nextPeriodStartMs);
      Period period = periodWithDurationMs.first;
      if (period.startMs == C.TIME_UNSET) {
        if (dynamic) {
          // This is an early access period. Ignore it. All subsequent periods must also be
          // early access.
          seenEarlyAccessPeriod = true;
        } else {
          throw new ParserException("Unable to determine start of period " + periods.size());
        }
      } else {
        long periodDurationMs = periodWithDurationMs.second;
        nextPeriodStartMs = periodDurationMs == C.TIME_UNSET ? C.TIME_UNSET
            : (period.startMs + periodDurationMs);
        periods.add(period);
      }
    } else {
      maybeSkipTag(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "MPD"));

  if (durationMs == C.TIME_UNSET) {
    if (nextPeriodStartMs != C.TIME_UNSET) {
      // If we know the end time of the final period, we can use it as the duration.
      durationMs = nextPeriodStartMs;
    } else if (!dynamic) {
      throw new ParserException("Unable to determine duration of static manifest.");
    }
  }

  if (periods.isEmpty()) {
    throw new ParserException("No periods found.");
  }

  return buildMediaPresentationDescription(
      availabilityStartTime,
      durationMs,
      minBufferTimeMs,
      dynamic,
      minUpdateTimeMs,
      timeShiftBufferDepthMs,
      suggestedPresentationDelayMs,
      publishTimeMs,
      programInformation,
      utcTiming,
      location,
      periods);
}
 

protected AdaptationSet parseAdaptationSet(XmlPullParser xpp, String baseUrl,
    SegmentBase segmentBase) throws XmlPullParserException, IOException {
  int id = parseInt(xpp, "id", AdaptationSet.ID_UNSET);
  int contentType = parseContentType(xpp);

  String mimeType = xpp.getAttributeValue(null, "mimeType");
  String codecs = xpp.getAttributeValue(null, "codecs");
  int width = parseInt(xpp, "width", Format.NO_VALUE);
  int height = parseInt(xpp, "height", Format.NO_VALUE);
  float frameRate = parseFrameRate(xpp, Format.NO_VALUE);
  int audioChannels = Format.NO_VALUE;
  int audioSamplingRate = parseInt(xpp, "audioSamplingRate", Format.NO_VALUE);
  String language = xpp.getAttributeValue(null, "lang");
  ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
  ArrayList<SchemeValuePair> inbandEventStreams = new ArrayList<>();
  ArrayList<SchemeValuePair> accessibilityDescriptors = new ArrayList<>();
  List<RepresentationInfo> representationInfos = new ArrayList<>();
  @C.SelectionFlags int selectionFlags = 0;

  boolean seenFirstBaseUrl = false;
  do {
    xpp.next();
    if (XmlPullParserUtil.isStartTag(xpp, "BaseURL")) {
      if (!seenFirstBaseUrl) {
        baseUrl = parseBaseUrl(xpp, baseUrl);
        seenFirstBaseUrl = true;
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentProtection")) {
      SchemeData contentProtection = parseContentProtection(xpp);
      if (contentProtection != null) {
        drmSchemeDatas.add(contentProtection);
      }
    } else if (XmlPullParserUtil.isStartTag(xpp, "ContentComponent")) {
      language = checkLanguageConsistency(language, xpp.getAttributeValue(null, "lang"));
      contentType = checkContentTypeConsistency(contentType, parseContentType(xpp));
    } else if (XmlPullParserUtil.isStartTag(xpp, "Role")) {
      selectionFlags |= parseRole(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "AudioChannelConfiguration")) {
      audioChannels = parseAudioChannelConfiguration(xpp);
    } else if (XmlPullParserUtil.isStartTag(xpp, "Accessibility")) {
      accessibilityDescriptors.add(parseAccessibility(xpp));
    } else if (XmlPullParserUtil.isStartTag(xpp, "Representation")) {
      RepresentationInfo representationInfo = parseRepresentation(xpp, baseUrl, mimeType, codecs,
          width, height, frameRate, audioChannels, audioSamplingRate, language,
          selectionFlags, accessibilityDescriptors, segmentBase);
      contentType = checkContentTypeConsistency(contentType,
          getContentType(representationInfo.format));
      representationInfos.add(representationInfo);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentBase")) {
      segmentBase = parseSegmentBase(xpp, (SingleSegmentBase) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentList")) {
      segmentBase = parseSegmentList(xpp, (SegmentList) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "SegmentTemplate")) {
      segmentBase = parseSegmentTemplate(xpp, (SegmentTemplate) segmentBase);
    } else if (XmlPullParserUtil.isStartTag(xpp, "InbandEventStream")) {
      inbandEventStreams.add(parseInbandEventStream(xpp));
    } else if (XmlPullParserUtil.isStartTag(xpp)) {
      parseAdaptationSetChild(xpp);
    }
  } while (!XmlPullParserUtil.isEndTag(xpp, "AdaptationSet"));

  // Build the representations.
  List<Representation> representations = new ArrayList<>(representationInfos.size());
  for (int i = 0; i < representationInfos.size(); i++) {
    representations.add(buildRepresentation(representationInfos.get(i), contentId,
        drmSchemeDatas, inbandEventStreams));
  }

  return buildAdaptationSet(id, contentType, representations, accessibilityDescriptors);
}