isSupported(mimeType, contentType) {
    const Capabilities = shaka.media.Capabilities;

    if (!this.isAacContainer_(mimeType)) {
      return false;
    }
    const ContentType = shaka.util.ManifestParserUtils.ContentType;
    return Capabilities.isTypeSupported(
        this.convertCodecs(ContentType.AUDIO, mimeType));
  }
Check if the mime type and the content type is supported.
@param {string} mimeType
@param {string=} contentType
@return {boolean}
@override
@export