youtube_dl/extractor/zdf.py

   1 import operator
   2 import re
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     parse_xml_doc,
   7     unified_strdate,
   8 )
   9
  10
  11 class ZDFIE(InfoExtractor):
  12     _VALID_URL = r'^http://www\.zdf\.de\/ZDFmediathek(?P<hash>#)?\/(.*beitrag\/video\/)(?P<video_id>[^/\?]+)(?:\?.*)?'
  13
  14     def _real_extract(self, url):
  15         mobj = re.match(self._VALID_URL, url)
  16         video_id = mobj.group('video_id')
  17
  18         xml_url = u'http://www.zdf.de/ZDFmediathek/xmlservice/web/beitragsDetails?ak=web&id=%s' % video_id
  19         info_xml = self._download_webpage(
  20             xml_url, video_id, note=u'Downloading video info')
  21         doc = parse_xml_doc(info_xml)
  22
  23         title = doc.find('.//information/title').text
  24         description = doc.find('.//information/detail').text
  25         uploader_node = doc.find('.//details/originChannelTitle')
  26         uploader = None if uploader_node is None else uploader_node.text
  27         duration_str = doc.find('.//details/length').text
  28         duration_m = re.match(r'''(?x)^
  29             (?P<hours>[0-9]{2})
  30             :(?P<minutes>[0-9]{2})
  31             :(?P<seconds>[0-9]{2})
  32             (?:\.(?P<ms>[0-9]+)?)
  33             ''', duration_str)
  34         duration = (
  35             (
  36                 (int(duration_m.group('hours')) * 60 * 60) +
  37                 (int(duration_m.group('minutes')) * 60) +
  38                 int(duration_m.group('seconds'))
  39             )
  40             if duration_m
  41             else None
  42         )
  43         upload_date = unified_strdate(doc.find('.//details/airtime').text)
  44
  45         def xml_to_format(fnode):
  46             video_url = fnode.find('url').text
  47             is_available = u'http://www.metafilegenerator' not in video_url
  48
  49             format_id = fnode.attrib['basetype']
  50             format_m = re.match(r'''(?x)
  51                 (?P<vcodec>[^_]+)_(?P<acodec>[^_]+)_(?P<container>[^_]+)_
  52                 (?P<proto>[^_]+)_(?P<index>[^_]+)_(?P<indexproto>[^_]+)
  53             ''', format_id)
  54
  55             PROTO_ORDER = ['http', 'rtmp', 'rtsp']
  56             try:
  57                 proto_pref = -PROTO_ORDER.index(format_m.group('proto'))
  58             except ValueError:
  59                 proto_pref = 999
  60
  61             quality = fnode.find('./quality').text
  62             QUALITY_ORDER = ['veryhigh', '300', 'high', 'med', 'low']
  63             try:
  64                 quality_pref = -QUALITY_ORDER.index(quality)
  65             except ValueError:
  66                 quality_pref = 999
  67
  68             abr = int(fnode.find('./audioBitrate').text) // 1000
  69             vbr = int(fnode.find('./videoBitrate').text) // 1000
  70             pref = (is_available, proto_pref, quality_pref, vbr, abr)
  71
  72             return {
  73                 'format_id': format_id,
  74                 'url': video_url,
  75                 'ext': format_m.group('container'),
  76                 'acodec': format_m.group('acodec'),
  77                 'vcodec': format_m.group('vcodec'),
  78                 'abr': abr,
  79                 'vbr': vbr,
  80                 'width': int(fnode.find('./width').text),
  81                 'height': int(fnode.find('./height').text),
  82                 'quality_name': quality,
  83                 'filesize': int(fnode.find('./filesize').text),
  84                 'format_note': None if is_available else u'(unavailable)',
  85                 '_pref': pref,
  86             }
  87
  88         format_nodes = doc.findall('.//formitaeten/formitaet')
  89         formats = sorted(map(xml_to_format, format_nodes),
  90                          key=operator.itemgetter('_pref'))
  91
  92         return {
  93             'id': video_id,
  94             'title': title,
  95             'formats': formats,
  96             'description': description,
  97             'uploader': uploader,
  98             'duration': duration,
  99             'upload_date': upload_date,
 100         }