text: from __future__ import unicode_literals
  
  import re
  
  from .common import InfoExtractor
  from ..utils import (
      int_or_none,
      unified_strdate,
      unescapeHTML,
  )
  
  
  class UstudioIE(InfoExtractor):
      IE_NAME = 'ustudio'
      _VALID_URL = r'https?://(?:(?:www|v1)\.)?ustudio\.com/video/(?P<id>[^/]+)/(?P<display_id>[^/?#&]+)'
      _TEST = {
          'url': 'http://ustudio.com/video/Uxu2my9bgSph/san_francisco_golden_gate_bridge',
          'md5': '58bbfca62125378742df01fc2abbdef6',
          'info_dict': {
              'id': 'Uxu2my9bgSph',
              'display_id': 'san_francisco_golden_gate_bridge',
              'ext': 'mp4',
              'title': 'San Francisco: Golden Gate Bridge',
              'description': 'md5:23925500697f2c6d4830e387ba51a9be',
              'thumbnail': r're:^https?://.*\.jpg$',
              'upload_date': '20111107',
              'uploader': 'Tony Farley',
          }
      }
  
      def _real_extract(self, url):
          video_id, display_id = re.match(self._VALID_URL, url).groups()
  
          config = self._download_xml(
              'http://v1.ustudio.com/embed/%s/ustudio/config.xml' % video_id,
              display_id)
  
          def extract(kind):
              return [{
                  'url': unescapeHTML(item.attrib['url']),
                  'width': int_or_none(item.get('width')),
                  'height': int_or_none(item.get('height')),
              } for item in config.findall('./qualities/quality/%s' % kind) if item.get('url')]
  
          formats = extract('video')
          self._sort_formats(formats)
  
          webpage = self._download_webpage(url, display_id)
  
          title = self._og_search_title(webpage)
          upload_date = unified_strdate(self._search_regex(
              r'(?s)Uploaded by\s*.+?\s*on\s*<span>([^<]+)</span>',
              webpage, 'upload date', fatal=False))
          uploader = self._search_regex(
              r'Uploaded by\s*<a[^>]*>([^<]+)<',
              webpage, 'uploader', fatal=False)
  
          return {
              'id': video_id,
              'display_id': display_id,
              'title': title,
              'description': self._og_search_description(webpage),
              'thumbnails': extract('image'),
              'upload_date': upload_date,
              'uploader': uploader,
              'formats': formats,
          }
  
  
  class UstudioEmbedIE(InfoExtractor):
      IE_NAME = 'ustudio:embed'
      _VALID_URL = r'https?://(?:(?:app|embed)\.)?ustudio\.com/embed/(?P<uid>[^/]+)/(?P<id>[^/]+)'
      _TEST = {
          'url': 'http://app.ustudio.com/embed/DeN7VdYRDKhP/Uw7G1kMCe65T',
          'md5': '47c0be52a09b23a7f40de9469cec58f4',
          'info_dict': {
              'id': 'Uw7G1kMCe65T',
              'ext': 'mp4',
              'title': '5 Things IT Should Know About Video',
              'description': 'md5:93d32650884b500115e158c5677d25ad',
              'uploader_id': 'DeN7VdYRDKhP',
          }
      }
  
      def _real_extract(self, url):
          uploader_id, video_id = re.match(self._VALID_URL, url).groups()
          video_data = self._download_json(
              'http://app.ustudio.com/embed/%s/%s/config.json' % (uploader_id, video_id),
              video_id)['videos'][0]
          title = video_data['name']
  
          formats = []
          for ext, qualities in video_data.get('transcodes', {}).items():
              for quality in qualities:
                  quality_url = quality.get('url')
                  if not quality_url:
                      continue
                  height = int_or_none(quality.get('height'))
                  formats.append({
                      'format_id': '%s-%dp' % (ext, height) if height else ext,
                      'url': quality_url,
                      'width': int_or_none(quality.get('width')),
                      'height': height,
                  })
          self._sort_formats(formats)
  
          thumbnails = []
          for image in video_data.get('images', []):
              image_url = image.get('url')
              if not image_url:
                  continue
              thumbnails.append({
                  'url': image_url,
              })
  
          return {
              'id': video_id,
              'title': title,
              'description': video_data.get('description'),
              'duration': int_or_none(video_data.get('duration')),
              'uploader_id': uploader_id,
              'tags': video_data.get('keywords'),
              'thumbnails': thumbnails,
              'formats': formats,
          }
  