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

   1 # coding: utf-8
   2 from __future__ import unicode_literals
   3
   4 from .common import InfoExtractor
   5 from ..utils import (
   6     xpath_element,
   7     xpath_text,
   8     int_or_none,
   9     parse_duration,
  10 )
  11
  12
  13 class GPUTechConfIE(InfoExtractor):
  14     _VALID_URL = r'https?://on-demand\.gputechconf\.com/gtc/2015/video/S(?P<id>\d+)\.html'
  15     _TEST = {
  16         'url': 'http://on-demand.gputechconf.com/gtc/2015/video/S5156.html',
  17         'md5': 'a8862a00a0fd65b8b43acc5b8e33f798',
  18         'info_dict': {
  19             'id': '5156',
  20             'ext': 'mp4',
  21             'title': 'Coordinating More Than 3 Million CUDA Threads for Social Network Analysis',
  22             'duration': 1219,
  23         }
  24     }
  25
  26     def _real_extract(self, url):
  27         video_id = self._match_id(url)
  28         webpage = self._download_webpage(url, video_id)
  29
  30         root_path = self._search_regex(r'var\s+rootPath\s*=\s*"([^"]+)', webpage, 'root path', 'http://evt.dispeak.com/nvidia/events/gtc15/')
  31         xml_file_id = self._search_regex(r'var\s+xmlFileId\s*=\s*"([^"]+)', webpage, 'xml file id')
  32
  33         doc = self._download_xml('%sxml/%s.xml' % (root_path, xml_file_id), video_id)
  34
  35         metadata = xpath_element(doc, 'metadata')
  36         http_host = xpath_text(metadata, 'httpHost', 'http host', True)
  37         mbr_videos = xpath_element(metadata, 'MBRVideos')
  38
  39         formats = []
  40         for mbr_video in mbr_videos.findall('MBRVideo'):
  41             stream_name = xpath_text(mbr_video, 'streamName')
  42             if stream_name:
  43                 formats.append({
  44                     'url': 'http://%s/%s' % (http_host, stream_name.replace('mp4:', '')),
  45                     'tbr': int_or_none(xpath_text(mbr_video, 'bitrate')),
  46                 })
  47         self._sort_formats(formats)
  48
  49         return {
  50             'id': video_id,
  51             'title': xpath_text(metadata, 'title'),
  52             'duration': parse_duration(xpath_text(metadata, 'endTime')),
  53             'creator': xpath_text(metadata, 'speaker'),
  54             'formats': formats,
  55         }