Java Code Examples for com.google.android.exoplayer2.C#WIDEVINE_UUID

/**
 * Derives a DRM {@link UUID} from {@code drmScheme}.
 *
 * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
 *     "clearkey"}.
 * @return The derived {@link UUID}, or {@code null} if one could not be derived.
 */
public static @Nullable UUID getDrmUuid(String drmScheme) {
  switch (toLowerInvariant(drmScheme)) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    case "clearkey":
      return C.CLEARKEY_UUID;
    default:
      try {
        return UUID.fromString(drmScheme);
      } catch (RuntimeException e) {
        return null;
      }
  }
}
 

/**
 * Derives a DRM {@link UUID} from {@code drmScheme}.
 *
 * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
 *     "clearkey"}.
 * @return The derived {@link UUID}, or {@code null} if one could not be derived.
 */
public static @Nullable UUID getDrmUuid(String drmScheme) {
  switch (toLowerInvariant(drmScheme)) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    case "clearkey":
      return C.CLEARKEY_UUID;
    default:
      try {
        return UUID.fromString(drmScheme);
      } catch (RuntimeException e) {
        return null;
      }
  }
}
 

/**
 * Derives a DRM {@link UUID} from {@code drmScheme}.
 *
 * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
 *     "clearkey"}.
 * @return The derived {@link UUID}, or {@code null} if one could not be derived.
 */
public static @Nullable UUID getDrmUuid(String drmScheme) {
  switch (toLowerInvariant(drmScheme)) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    case "clearkey":
      return C.CLEARKEY_UUID;
    default:
      try {
        return UUID.fromString(drmScheme);
      } catch (RuntimeException e) {
        return null;
      }
  }
}
 

/**
 * Generates the {@link DrmSessionManager} to use with the {@link RendererProvider}. This will
 * return null on API's < {@value Build.VERSION_CODES#JELLY_BEAN_MR2}
 *
 * @return The {@link DrmSessionManager} to use or <code>null</code>
 */
@Nullable
protected DrmSessionManager<FrameworkMediaCrypto> generateDrmSessionManager() {
    // DRM is only supported on API 18 + in the ExoPlayer
    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR2) {
        return null;
    }

    // Widevine will capture the majority of use cases however playready is supported on all AndroidTV devices
    UUID uuid = C.WIDEVINE_UUID;

    try {
        DefaultDrmSessionManager<FrameworkMediaCrypto> sessionManager = new DefaultDrmSessionManager<>(uuid, FrameworkMediaDrm.newInstance(uuid), new DelegatedMediaDrmCallback(), null);
        sessionManager.addListener(mainHandler, capabilitiesListener);

        return sessionManager;
    } catch (Exception e) {
        Log.d(TAG, "Unable to create a DrmSessionManager due to an exception", e);
        return null;
    }
}
 

/**
 * Derives a DRM {@link UUID} from {@code drmScheme}.
 *
 * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
 *     "clearkey"}.
 * @return The derived {@link UUID}, or {@code null} if one could not be derived.
 */
public static @Nullable UUID getDrmUuid(String drmScheme) {
  switch (Util.toLowerInvariant(drmScheme)) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    case "clearkey":
      return C.CLEARKEY_UUID;
    default:
      try {
        return UUID.fromString(drmScheme);
      } catch (RuntimeException e) {
        return null;
      }
  }
}
 

private static SchemeData parseWidevineSchemeData(String line, String keyFormat)
    throws ParserException {
  if (KEYFORMAT_WIDEVINE_PSSH_BINARY.equals(keyFormat)) {
   String uriString = parseStringAttr(line, REGEX_URI);
   return new SchemeData(C.WIDEVINE_UUID, MimeTypes.VIDEO_MP4,
       Base64.decode(uriString.substring(uriString.indexOf(',')), Base64.DEFAULT));
  }
  if (KEYFORMAT_WIDEVINE_PSSH_JSON.equals(keyFormat)) {
    try {
      return new SchemeData(C.WIDEVINE_UUID, "hls", line.getBytes(C.UTF8_NAME));
    } catch (UnsupportedEncodingException e) {
      throw new ParserException(e);
    }
  }
  return null;
}
 

/**
 * Derives a DRM {@link UUID} from {@code drmScheme}.
 *
 * @param drmScheme A UUID string, or {@code "widevine"}, {@code "playready"} or {@code
 *     "clearkey"}.
 * @return The derived {@link UUID}, or {@code null} if one could not be derived.
 */
public static @Nullable UUID getDrmUuid(String drmScheme) {
  switch (Util.toLowerInvariant(drmScheme)) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    case "clearkey":
      return C.CLEARKEY_UUID;
    default:
      try {
        return UUID.fromString(drmScheme);
      } catch (RuntimeException e) {
        return null;
      }
  }
}
 

/**
 * Constructs an instance. Call {@link #releaseResources()} when you're done with it.
 *
 * @param mediaDrm An underlying {@link ExoMediaDrm} for use by the manager.
 * @param callback Performs key and provisioning requests.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest(byte[], byte[], String, int, HashMap)}. May be null.
 * @see DefaultDrmSessionManager#DefaultDrmSessionManager(java.util.UUID, ExoMediaDrm,
 *     MediaDrmCallback, HashMap, Handler, EventListener)
 */
public OfflineLicenseHelper(ExoMediaDrm<T> mediaDrm, MediaDrmCallback callback,
    HashMap<String, String> optionalKeyRequestParameters) {
  handlerThread = new HandlerThread("OfflineLicenseHelper");
  handlerThread.start();

  conditionVariable = new ConditionVariable();
  EventListener eventListener = new EventListener() {
    @Override
    public void onDrmKeysLoaded() {
      conditionVariable.open();
    }

    @Override
    public void onDrmSessionManagerError(Exception e) {
      conditionVariable.open();
    }

    @Override
    public void onDrmKeysRestored() {
      conditionVariable.open();
    }

    @Override
    public void onDrmKeysRemoved() {
      conditionVariable.open();
    }
  };
  drmSessionManager = new DefaultDrmSessionManager<>(C.WIDEVINE_UUID, mediaDrm, callback,
      optionalKeyRequestParameters, new Handler(handlerThread.getLooper()), eventListener);
}
 

private UUID getDrmUuid(String typeString) throws ParserException {
  switch (typeString.toLowerCase()) {
    case "widevine":
      return C.WIDEVINE_UUID;
    case "playready":
      return C.PLAYREADY_UUID;
    default:
      try {
        return UUID.fromString(typeString);
      } catch (RuntimeException e) {
        throw new ParserException("Unsupported drm type: " + typeString);
      }
  }
}
 

/**
 * 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);
}
 

/**
 * 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);
}
 

/**
 * 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);
}
 

/**
 * 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);
}
 

/**
 * 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<@NullableType String, @NullableType SchemeData> parseContentProtection(
    XmlPullParser xpp) throws XmlPullParserException, IOException {
  String schemeType = null;
  String licenseServerUrl = null;
  byte[] data = null;
  UUID uuid = null;

  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 (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) : null;
  return Pair.create(schemeType, schemeData);
}
 

/**
 * Creates a builder with default values. The default values are:
 *
 * <ul>
 *   <li>{@link #setKeyRequestParameters keyRequestParameters}: An empty map.
 *   <li>{@link #setUuidAndExoMediaDrmProvider UUID}: {@link C#WIDEVINE_UUID}.
 *   <li>{@link #setUuidAndExoMediaDrmProvider ExoMediaDrm.Provider}: {@link
 *       FrameworkMediaDrm#DEFAULT_PROVIDER}.
 *   <li>{@link #setMultiSession multiSession}: {@code false}.
 *   <li>{@link #setUseDrmSessionsForClearContent useDrmSessionsForClearContent}: No tracks.
 *   <li>{@link #setPlayClearSamplesWithoutKeys playClearSamplesWithoutKeys}: {@code false}.
 *   <li>{@link #setLoadErrorHandlingPolicy LoadErrorHandlingPolicy}: {@link
 *       DefaultLoadErrorHandlingPolicy}.
 * </ul>
 */
@SuppressWarnings("unchecked")
public Builder() {
  keyRequestParameters = new HashMap<>();
  uuid = C.WIDEVINE_UUID;
  exoMediaDrmProvider = (ExoMediaDrm.Provider) FrameworkMediaDrm.DEFAULT_PROVIDER;
  loadErrorHandlingPolicy = new DefaultLoadErrorHandlingPolicy();
  useDrmSessionsForClearContentTrackTypes = new int[0];
}
 

/**
 * Instantiates a new instance which uses Widevine CDM. Call {@link #release()} when the instance
 * is no longer required.
 *
 * @param defaultLicenseUrl The default license URL. Used for key requests that do not specify
 *     their own license URL.
 * @param forceDefaultLicenseUrl Whether to use {@code defaultLicenseUrl} for key requests that
 *     include their own license URL.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest(byte[], byte[], String, int, HashMap)}. May be null.
 * @return A new instance which uses Widevine CDM.
 * @throws UnsupportedDrmException If the Widevine DRM scheme is unsupported or cannot be
 *     instantiated.
 * @see DefaultDrmSessionManager#DefaultDrmSessionManager(java.util.UUID, ExoMediaDrm,
 *     MediaDrmCallback, HashMap, Handler, DefaultDrmSessionEventListener)
 */
public static OfflineLicenseHelper<FrameworkMediaCrypto> newWidevineInstance(
    String defaultLicenseUrl,
    boolean forceDefaultLicenseUrl,
    Factory httpDataSourceFactory,
    HashMap<String, String> optionalKeyRequestParameters)
    throws UnsupportedDrmException {
  return new OfflineLicenseHelper<>(C.WIDEVINE_UUID,
      FrameworkMediaDrm.newInstance(C.WIDEVINE_UUID),
      new HttpMediaDrmCallback(defaultLicenseUrl, forceDefaultLicenseUrl, httpDataSourceFactory),
      optionalKeyRequestParameters);
}
 

/**
 * Instantiates a new instance which uses Widevine CDM. Call {@link #release()} when the instance
 * is no longer required.
 *
 * @param defaultLicenseUrl The default license URL. Used for key requests that do not specify
 *     their own license URL.
 * @param forceDefaultLicenseUrl Whether to use {@code defaultLicenseUrl} for key requests that
 *     include their own license URL.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest(byte[], byte[], String, int, HashMap)}. May be null.
 * @return A new instance which uses Widevine CDM.
 * @throws UnsupportedDrmException If the Widevine DRM scheme is unsupported or cannot be
 *     instantiated.
 * @see DefaultDrmSessionManager#DefaultDrmSessionManager(java.util.UUID, ExoMediaDrm,
 *     MediaDrmCallback, HashMap)
 */
public static OfflineLicenseHelper<FrameworkMediaCrypto> newWidevineInstance(
    String defaultLicenseUrl,
    boolean forceDefaultLicenseUrl,
    Factory httpDataSourceFactory,
    @Nullable HashMap<String, String> optionalKeyRequestParameters)
    throws UnsupportedDrmException {
  return new OfflineLicenseHelper<>(C.WIDEVINE_UUID,
      FrameworkMediaDrm.newInstance(C.WIDEVINE_UUID),
      new HttpMediaDrmCallback(defaultLicenseUrl, forceDefaultLicenseUrl, httpDataSourceFactory),
      optionalKeyRequestParameters);
}
 

/**
 * Instantiates a new instance which uses Widevine CDM. Call {@link #release()} when the instance
 * is no longer required.
 *
 * @param defaultLicenseUrl The default license URL. Used for key requests that do not specify
 *     their own license URL.
 * @param forceDefaultLicenseUrl Whether to use {@code defaultLicenseUrl} for key requests that
 *     include their own license URL.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest(byte[], byte[], String, int, HashMap)}. May be null.
 * @return A new instance which uses Widevine CDM.
 * @throws UnsupportedDrmException If the Widevine DRM scheme is unsupported or cannot be
 *     instantiated.
 * @see DefaultDrmSessionManager#DefaultDrmSessionManager(java.util.UUID, ExoMediaDrm,
 *     MediaDrmCallback, HashMap, Handler, DefaultDrmSessionEventListener)
 */
public static OfflineLicenseHelper<FrameworkMediaCrypto> newWidevineInstance(
    String defaultLicenseUrl,
    boolean forceDefaultLicenseUrl,
    Factory httpDataSourceFactory,
    HashMap<String, String> optionalKeyRequestParameters)
    throws UnsupportedDrmException {
  return new OfflineLicenseHelper<>(C.WIDEVINE_UUID,
      FrameworkMediaDrm.newInstance(C.WIDEVINE_UUID),
      new HttpMediaDrmCallback(defaultLicenseUrl, forceDefaultLicenseUrl, httpDataSourceFactory),
      optionalKeyRequestParameters);
}
 

/**
 * Instantiates a new instance which uses Widevine CDM. Call {@link #release()} when the instance
 * is no longer required.
 *
 * @param defaultLicenseUrl The default license URL. Used for key requests that do not specify
 *     their own license URL.
 * @param forceDefaultLicenseUrl Whether to use {@code defaultLicenseUrl} for key requests that
 *     include their own license URL.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest(byte[], byte[], String, int, HashMap)}. May be null.
 * @return A new instance which uses Widevine CDM.
 * @throws UnsupportedDrmException If the Widevine DRM scheme is unsupported or cannot be
 *     instantiated.
 * @see DefaultDrmSessionManager#DefaultDrmSessionManager(java.util.UUID, ExoMediaDrm,
 *     MediaDrmCallback, HashMap)
 */
public static OfflineLicenseHelper<FrameworkMediaCrypto> newWidevineInstance(
    String defaultLicenseUrl,
    boolean forceDefaultLicenseUrl,
    Factory httpDataSourceFactory,
    @Nullable HashMap<String, String> optionalKeyRequestParameters)
    throws UnsupportedDrmException {
  return new OfflineLicenseHelper<>(C.WIDEVINE_UUID,
      FrameworkMediaDrm.newInstance(C.WIDEVINE_UUID),
      new HttpMediaDrmCallback(defaultLicenseUrl, forceDefaultLicenseUrl, httpDataSourceFactory),
      optionalKeyRequestParameters);
}
 

/**
 * Instantiates a new instance which uses Widevine CDM. Call {@link #release()} when the instance
 * is no longer required.
 *
 * @param defaultLicenseUrl The default license URL. Used for key requests that do not specify
 *     their own license URL.
 * @param forceDefaultLicenseUrl Whether to use {@code defaultLicenseUrl} for key requests that
 *     include their own license URL.
 * @param optionalKeyRequestParameters An optional map of parameters to pass as the last argument
 *     to {@link MediaDrm#getKeyRequest}. May be null.
 * @return A new instance which uses Widevine CDM.
 * @throws UnsupportedDrmException If the Widevine DRM scheme is unsupported or cannot be
 *     instantiated.
 * @see DefaultDrmSessionManager.Builder
 */
public static OfflineLicenseHelper<FrameworkMediaCrypto> newWidevineInstance(
    String defaultLicenseUrl,
    boolean forceDefaultLicenseUrl,
    Factory httpDataSourceFactory,
    @Nullable Map<String, String> optionalKeyRequestParameters)
    throws UnsupportedDrmException {
  return new OfflineLicenseHelper<>(
      C.WIDEVINE_UUID,
      FrameworkMediaDrm.DEFAULT_PROVIDER,
      new HttpMediaDrmCallback(defaultLicenseUrl, forceDefaultLicenseUrl, httpDataSourceFactory),
      optionalKeyRequestParameters);
}