_ Git - youtube-dl/blob - youtube_dl/extractor/mtv.py

   1 import re
   2 import xml.etree.ElementTree
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     compat_urllib_parse,
   7     ExtractorError,
   8 )
   9
  10 def _media_xml_tag(tag):
  11     return '{http://search.yahoo.com/mrss/}%s' % tag
  12
  13 class MTVIE(InfoExtractor):
  14     _VALID_URL = r'^https?://(?:www\.)?mtv\.com/videos/.+?/(?P<videoid>[0-9]+)/[^/]+$'
  15
  16     _FEED_URL = 'http://www.mtv.com/player/embed/AS3/rss/'
  17
  18     _TESTS = [
  19         {
  20             u'url': u'http://www.mtv.com/videos/misc/853555/ours-vh1-storytellers.jhtml',
  21             u'file': u'853555.mp4',
  22             u'md5': u'850f3f143316b1e71fa56a4edfd6e0f8',
  23             u'info_dict': {
  24                 u'title': u'Taylor Swift - "Ours (VH1 Storytellers)"',
  25                 u'description': u'Album: Taylor Swift performs "Ours" for VH1 Storytellers at Harvey Mudd College.',
  26             },
  27         },
  28         {
  29             u'url': u'http://www.mtv.com/videos/taylor-swift/916187/everything-has-changed-ft-ed-sheeran.jhtml',
  30             u'file': u'USCJY1331283.mp4',
  31             u'md5': u'73b4e7fcadd88929292fe52c3ced8caf',
  32             u'info_dict': {
  33                 u'title': u'Everything Has Changed',
  34                 u'upload_date': u'20130606',
  35                 u'uploader': u'Taylor Swift',
  36             },
  37             u'skip': u'VEVO is only available in some countries',
  38         },
  39     ]
  40
  41     @staticmethod
  42     def _id_from_uri(uri):
  43         return uri.split(':')[-1]
  44
  45     # This was originally implemented for ComedyCentral, but it also works here
  46     @staticmethod
  47     def _transform_rtmp_url(rtmp_video_url):
  48         m = re.match(r'^rtmpe?://.*?/(?P<finalid>gsp\..+?/.*)$', rtmp_video_url)
  49         if not m:
  50             raise ExtractorError(u'Cannot transform RTMP url')
  51         base = 'http://mtvnmobile.vo.llnwd.net/kip0/_pxn=1+_pxI0=Ripod-h264+_pxL0=undefined+_pxM0=+_pxK=18639+_pxE=mp4/44620/mtvnorigin/'
  52         return base + m.group('finalid')
  53
  54     def _get_thumbnail_url(self, uri, itemdoc):
  55         return 'http://mtv.mtvnimages.com/uri/' + uri
  56
  57     def _extract_video_url(self, metadataXml):
  58         if '/error_country_block.swf' in metadataXml:
  59             raise ExtractorError(u'This video is not available from your country.', expected=True)
  60         mdoc = xml.etree.ElementTree.fromstring(metadataXml.encode('utf-8'))
  61         renditions = mdoc.findall('.//rendition')
  62
  63         # For now, always pick the highest quality.
  64         rendition = renditions[-1]
  65
  66         try:
  67             _,_,ext = rendition.attrib['type'].partition('/')
  68             format = ext + '-' + rendition.attrib['width'] + 'x' + rendition.attrib['height'] + '_' + rendition.attrib['bitrate']
  69             rtmp_video_url = rendition.find('./src').text
  70         except KeyError:
  71             raise ExtractorError('Invalid rendition field.')
  72         video_url = self._transform_rtmp_url(rtmp_video_url)
  73         return {'ext': ext, 'url': video_url, 'format': format}
  74
  75     def _get_video_info(self, itemdoc):
  76         uri = itemdoc.find('guid').text
  77         video_id = self._id_from_uri(uri)
  78         self.report_extraction(video_id)
  79         mediagen_url = itemdoc.find('%s/%s' % (_media_xml_tag('group'), _media_xml_tag('content'))).attrib['url']
  80         if 'acceptMethods' not in mediagen_url:
  81             mediagen_url += '&acceptMethods=fms'
  82         mediagen_page = self._download_webpage(mediagen_url, video_id,
  83                                                u'Downloading video urls')
  84         video_info = self._extract_video_url(mediagen_page)
  85
  86         description_node = itemdoc.find('description')
  87         if description_node is not None:
  88             description = description_node.text
  89         else:
  90             description = None
  91         video_info.update({'title': itemdoc.find('title').text,
  92                            'id': video_id,
  93                            'thumbnail': self._get_thumbnail_url(uri, itemdoc),
  94                            'description': description,
  95                            })
  96         return video_info
  97
  98     def _get_videos_info(self, uri):
  99         video_id = self._id_from_uri(uri)
 100         data = compat_urllib_parse.urlencode({'uri': uri})
 101         infoXml = self._download_webpage(self._FEED_URL +'?' + data, video_id,
 102                                          u'Downloading info')
 103         idoc = xml.etree.ElementTree.fromstring(infoXml.encode('utf-8'))
 104         return [self._get_video_info(item) for item in idoc.findall('.//item')]
 105
 106     def _real_extract(self, url):
 107         mobj = re.match(self._VALID_URL, url)
 108         video_id = mobj.group('videoid')
 109
 110         webpage = self._download_webpage(url, video_id)
 111
 112         # Some videos come from Vevo.com
 113         m_vevo = re.search(r'isVevoVideo = true;.*?vevoVideoId = "(.*?)";',
 114                            webpage, re.DOTALL)
 115         if m_vevo:
 116             vevo_id = m_vevo.group(1);
 117             self.to_screen(u'Vevo video detected: %s' % vevo_id)
 118             return self.url_result('vevo:%s' % vevo_id, ie='Vevo')
 119
 120         uri = self._html_search_regex(r'/uri/(.*?)\?', webpage, u'uri')
 121         return self._get_videos_info(uri)