ytdl-nightly/youtube_dl/extractor/gputechconf.py

56 lines
2.0 KiB
Python

# coding: utf-8
from __future__ import unicode_literals
from .common import InfoExtractor
from ..utils import (
xpath_element,
xpath_text,
int_or_none,
parse_duration,
)
class GPUTechConfIE(InfoExtractor):
_VALID_URL = r'https?://on-demand\.gputechconf\.com/gtc/2015/video/S(?P<id>\d+)\.html'
_TEST = {
'url': 'http://on-demand.gputechconf.com/gtc/2015/video/S5156.html',
'md5': 'a8862a00a0fd65b8b43acc5b8e33f798',
'info_dict': {
'id': '5156',
'ext': 'mp4',
'title': 'Coordinating More Than 3 Million CUDA Threads for Social Network Analysis',
'duration': 1219,
}
}
def _real_extract(self, url):
video_id = self._match_id(url)
webpage = self._download_webpage(url, video_id)
root_path = self._search_regex(r'var\s+rootPath\s*=\s*"([^"]+)', webpage, 'root path', 'http://evt.dispeak.com/nvidia/events/gtc15/')
xml_file_id = self._search_regex(r'var\s+xmlFileId\s*=\s*"([^"]+)', webpage, 'xml file id')
doc = self._download_xml('%sxml/%s.xml' % (root_path, xml_file_id), video_id)
metadata = xpath_element(doc, 'metadata')
http_host = xpath_text(metadata, 'httpHost', 'http host', True)
mbr_videos = xpath_element(metadata, 'MBRVideos')
formats = []
for mbr_video in mbr_videos.findall('MBRVideo'):
stream_name = xpath_text(mbr_video, 'streamName')
if stream_name:
formats.append({
'url': 'http://%s/%s' % (http_host, stream_name.replace('mp4:', '')),
'tbr': int_or_none(xpath_text(mbr_video, 'bitrate')),
})
self._sort_formats(formats)
return {
'id': video_id,
'title': xpath_text(metadata, 'title'),
'duration': parse_duration(xpath_text(metadata, 'endTime')),
'creator': xpath_text(metadata, 'speaker'),
'formats': formats,
}