code: public static Map<Qualities, String> gatherUrlsFromWdrM3U8(String aWDRM3U8Url) {
  		Map<Qualities, String> urlAndQualities = new EnumMap<>(Qualities.class);
  		if (aWDRM3U8Url.contains(M3U8_WDR_URL_BEGIN) || aWDRM3U8Url.contains(M3U8_WDR_URL_ALTERNATIV_BEGIN)) {
  			String m3u8Url = aWDRM3U8Url.replaceAll(REGEX_ALL_BEFORE_PATTERN+M3U8_WDR_URL_BEGIN, "").replaceAll(REGEX_ALL_BEFORE_PATTERN+M3U8_WDR_URL_ALTERNATIV_BEGIN, "");
  			urlAndQualities.putAll(convertM3U8Url(m3u8Url));
  		}
  		return urlAndQualities;
  	}
docs: If the URL follows the following structure it will be used to generate
  MP4 URLS from it.<br>
  This structure is needed:
  <code>http://adaptiv.wdr.de/i/medp/[region]/[fsk]/[unkownNumber]/[videoId]/,[Qualitie 01],[Qualitie 02],[Qualitie ...],.mp4.csmil/master.m3u8</code><br>
  
  @param aWDRM3U8Url
  The M3U8 URL.
  @return A Map containing the URLs and Qualities which was found. An empty
  Map if nothing was found.