Merge pull request #94 from thesquareof4/master

Added the ratebypass flag to the download url. This drastically speeds u...

Author: flagbug

YoutubeExtractor/YoutubeExtractor/DownloadUrlResolver.cs

@@ -12,6 +12,7 @@ namespace YoutubeExtractor
     /// </summary>
     public static class DownloadUrlResolver
     {
+        private const string RateBypassFlag = "ratebypass";
         private const int CorrectSignatureLength = 81;
         private const string SignatureQuery = "signature";
 
@@ -202,6 +203,10 @@ private static IEnumerable<ExtractionInfo> ExtractDownloadUrls(JObject json)
                 url = HttpHelper.UrlDecode(url);
                 url = HttpHelper.UrlDecode(url);
 
+                IDictionary<string, string> parameters = HttpHelper.ParseQueryString(url);
+                if (!parameters.ContainsKey(RateBypassFlag))
+                    url += string.Format("&{0}={1}", RateBypassFlag, "yes");
+
                 yield return new ExtractionInfo { RequiresDecryption = requiresDecryption, Uri = new Uri(url) };
             }
         }