Raphaël G. Git Repositories - youtubedl/blob - youtube_dl/extractor/dispeak.py

   1 from __future__ import unicode_literals
   2
   3 import re
   4
   5 from .common import InfoExtractor
   6 from ..utils import (
   7     int_or_none,
   8     parse_duration,
   9     remove_end,
  10     xpath_element,
  11     xpath_text,
  12 )
  13
  14
  15 class DigitallySpeakingIE(InfoExtractor):
  16     _VALID_URL = r'https?://(?:evt\.dispeak|events\.digitallyspeaking)\.com/(?:[^/]+/)+xml/(?P<id>[^.]+)\.xml'
  17
  18     _TESTS = [{
  19         # From http://gdcvault.com/play/1023460/Tenacious-Design-and-The-Interface
  20         'url': 'http://evt.dispeak.com/ubm/gdc/sf16/xml/840376_BQRC.xml',
  21         'md5': 'a8efb6c31ed06ca8739294960b2dbabd',
  22         'info_dict': {
  23             'id': '840376_BQRC',
  24             'ext': 'mp4',
  25             'title': 'Tenacious Design and The Interface of \'Destiny\'',
  26         },
  27     }, {
  28         # From http://www.gdcvault.com/play/1014631/Classic-Game-Postmortem-PAC
  29         'url': 'http://events.digitallyspeaking.com/gdc/sf11/xml/12396_1299111843500GMPX.xml',
  30         'only_matching': True,
  31     }]
  32
  33     def _parse_mp4(self, metadata):
  34         video_formats = []
  35         video_root = None
  36
  37         mp4_video = xpath_text(metadata, './mp4video', default=None)
  38         if mp4_video is not None:
  39             mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video)
  40             video_root = mobj.group('root')
  41         if video_root is None:
  42             http_host = xpath_text(metadata, 'httpHost', default=None)
  43             if http_host:
  44                 video_root = 'http://%s/' % http_host
  45         if video_root is None:
  46             # Hard-coded in http://evt.dispeak.com/ubm/gdc/sf16/custom/player2.js
  47             # Works for GPUTechConf, too
  48             video_root = 'http://s3-2u.digitallyspeaking.com/'
  49
  50         formats = metadata.findall('./MBRVideos/MBRVideo')
  51         if not formats:
  52             return None
  53         for a_format in formats:
  54             stream_name = xpath_text(a_format, 'streamName', fatal=True)
  55             video_path = re.match(r'mp4\:(?P<path>.*)', stream_name).group('path')
  56             url = video_root + video_path
  57             vbr = xpath_text(a_format, 'bitrate')
  58             video_formats.append({
  59                 'url': url,
  60                 'vbr': int_or_none(vbr),
  61             })
  62         return video_formats
  63
  64     def _parse_flv(self, metadata):
  65         formats = []
  66         akamai_url = xpath_text(metadata, './akamaiHost', fatal=True)
  67         audios = metadata.findall('./audios/audio')
  68         for audio in audios:
  69             formats.append({
  70                 'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
  71                 'play_path': remove_end(audio.get('url'), '.flv'),
  72                 'ext': 'flv',
  73                 'vcodec': 'none',
  74                 'format_id': audio.get('code'),
  75             })
  76         slide_video_path = xpath_text(metadata, './slideVideo', fatal=True)
  77         formats.append({
  78             'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
  79             'play_path': remove_end(slide_video_path, '.flv'),
  80             'ext': 'flv',
  81             'format_note': 'slide deck video',
  82             'quality': -2,
  83             'preference': -2,
  84             'format_id': 'slides',
  85         })
  86         speaker_video_path = xpath_text(metadata, './speakerVideo', fatal=True)
  87         formats.append({
  88             'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
  89             'play_path': remove_end(speaker_video_path, '.flv'),
  90             'ext': 'flv',
  91             'format_note': 'speaker video',
  92             'quality': -1,
  93             'preference': -1,
  94             'format_id': 'speaker',
  95         })
  96         return formats
  97
  98     def _real_extract(self, url):
  99         video_id = self._match_id(url)
 100
 101         xml_description = self._download_xml(url, video_id)
 102         metadata = xpath_element(xml_description, 'metadata')
 103
 104         video_formats = self._parse_mp4(metadata)
 105         if video_formats is None:
 106             video_formats = self._parse_flv(metadata)
 107
 108         return {
 109             'id': video_id,
 110             'formats': video_formats,
 111             'title': xpath_text(metadata, 'title', fatal=True),
 112             'duration': parse_duration(xpath_text(metadata, 'endTime')),
 113             'creator': xpath_text(metadata, 'speaker'),
 114         }