YouTube HTML5 Video Proxy

yt_video_proxy.py

ytVideoUrlMatcher = r'url_encoded_fmt_stream_map=url=([^&]*)&'
ytVideoInfoUrlBase = 'http://www.youtube.com/get_video_info?html5=1&video_id=' 

def getHTML5VideoFileFromYouTube(videoId):
   videoInfoUrl  = ytVideoInfoUrlBase + videoId
   videoInfoFile = urllib2.urlopen(videoInfoUrl)
   videoInfo      = urllib2.unquote(videoInfoFile.read())

   vidMatch =  re.search(ytVideoUrlMatcher, videoInfo)
   videoUrl  =  vidMatch.groups(0)[0]
   videoUrl  = urllib2.unquote(videoUrl)

   return urllib2.urlopen(vidUrl)