Merge pull request #1114 from alexvh/traileraddict_hd

[traileraddict] Obtain hd quality stream if available

Updated md5 checksum of the test video.

youtube_dl/extractor/traileraddict.py

@@ -8,7 +8,7 @@ class TrailerAddictIE(InfoExtractor):
     _TEST = {
         u'url': u'http://www.traileraddict.com/trailer/prince-avalanche/trailer',
         u'file': u'76184.mp4',
-        u'md5': u'41365557f3c8c397d091da510e73ceb4',
+        u'md5': u'57e39dbcf4142ceb8e1f242ff423fd71',
         u'info_dict': {
             u"title": u"Prince Avalanche Trailer",
             u"description": u"Trailer for Prince Avalanche.Two highway road workers spend the summer of 1988 away from their city lives. The isolated landscape becomes a place of misadventure as the men find themselves at odds with each other and the women they left behind."
@@ -26,7 +26,13 @@ class TrailerAddictIE(InfoExtractor):
                 webpage, 'Views Count')
         video_id = self._og_search_property('video', webpage, 'Video id').split('=')[1]
 
-        info_url = "http://www.traileraddict.com/fvar.php?tid=%s" %(str(video_id))
+        # Presence of (no)watchplus function indicates HD quality is available
+        if re.search(r'function (no)?watchplus()', webpage):
+            fvar = "fvarhd"
+        else:
+            fvar = "fvar"
+
+        info_url = "http://www.traileraddict.com/%s.php?tid=%s" % (fvar, str(video_id))
         info_webpage = self._download_webpage(info_url, video_id , "Downloading the info webpage")
 
         final_url = self._search_regex(r'&fileurl=(.+)',