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125 lines
4.6 KiB
Python
125 lines
4.6 KiB
Python
from __future__ import unicode_literals
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import re
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from .common import InfoExtractor
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from ..utils import (
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int_or_none,
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parse_duration,
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remove_end,
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xpath_element,
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xpath_text,
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)
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class DigitallySpeakingIE(InfoExtractor):
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_VALID_URL = r'https?://(?:s?evt\.dispeak|events\.digitallyspeaking)\.com/(?:[^/]+/)+xml/(?P<id>[^.]+)\.xml'
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_TESTS = [{
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# From http://gdcvault.com/play/1023460/Tenacious-Design-and-The-Interface
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'url': 'http://evt.dispeak.com/ubm/gdc/sf16/xml/840376_BQRC.xml',
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'md5': 'a8efb6c31ed06ca8739294960b2dbabd',
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'info_dict': {
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'id': '840376_BQRC',
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'ext': 'mp4',
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'title': 'Tenacious Design and The Interface of \'Destiny\'',
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},
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}, {
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# From http://www.gdcvault.com/play/1014631/Classic-Game-Postmortem-PAC
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'url': 'http://events.digitallyspeaking.com/gdc/sf11/xml/12396_1299111843500GMPX.xml',
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'only_matching': True,
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}, {
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# From http://www.gdcvault.com/play/1013700/Advanced-Material
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'url': 'http://sevt.dispeak.com/ubm/gdc/eur10/xml/11256_1282118587281VNIT.xml',
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'only_matching': True,
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}]
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def _parse_mp4(self, metadata):
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video_formats = []
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video_root = None
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mp4_video = xpath_text(metadata, './mp4video', default=None)
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if mp4_video is not None:
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mobj = re.match(r'(?P<root>https?://.*?/).*', mp4_video)
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video_root = mobj.group('root')
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if video_root is None:
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http_host = xpath_text(metadata, 'httpHost', default=None)
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if http_host:
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video_root = 'http://%s/' % http_host
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if video_root is None:
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# Hard-coded in http://evt.dispeak.com/ubm/gdc/sf16/custom/player2.js
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# Works for GPUTechConf, too
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video_root = 'http://s3-2u.digitallyspeaking.com/'
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formats = metadata.findall('./MBRVideos/MBRVideo')
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if not formats:
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return None
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for a_format in formats:
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stream_name = xpath_text(a_format, 'streamName', fatal=True)
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video_path = re.match(r'mp4\:(?P<path>.*)', stream_name).group('path')
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url = video_root + video_path
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bitrate = xpath_text(a_format, 'bitrate')
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tbr = int_or_none(bitrate)
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vbr = int_or_none(self._search_regex(
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r'-(\d+)\.mp4', video_path, 'vbr', default=None))
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abr = tbr - vbr if tbr and vbr else None
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video_formats.append({
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'format_id': bitrate,
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'url': url,
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'tbr': tbr,
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'vbr': vbr,
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'abr': abr,
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})
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return video_formats
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def _parse_flv(self, metadata):
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formats = []
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akamai_url = xpath_text(metadata, './akamaiHost', fatal=True)
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audios = metadata.findall('./audios/audio')
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for audio in audios:
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formats.append({
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'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
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'play_path': remove_end(audio.get('url'), '.flv'),
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'ext': 'flv',
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'vcodec': 'none',
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'format_id': audio.get('code'),
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})
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slide_video_path = xpath_text(metadata, './slideVideo', fatal=True)
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formats.append({
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'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
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'play_path': remove_end(slide_video_path, '.flv'),
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'ext': 'flv',
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'format_note': 'slide deck video',
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'quality': -2,
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'preference': -2,
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'format_id': 'slides',
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})
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speaker_video_path = xpath_text(metadata, './speakerVideo', fatal=True)
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formats.append({
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'url': 'rtmp://%s/ondemand?ovpfv=1.1' % akamai_url,
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'play_path': remove_end(speaker_video_path, '.flv'),
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'ext': 'flv',
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'format_note': 'speaker video',
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'quality': -1,
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'preference': -1,
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'format_id': 'speaker',
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})
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return formats
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def _real_extract(self, url):
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video_id = self._match_id(url)
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xml_description = self._download_xml(url, video_id)
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metadata = xpath_element(xml_description, 'metadata')
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video_formats = self._parse_mp4(metadata)
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if video_formats is None:
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video_formats = self._parse_flv(metadata)
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return {
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'id': video_id,
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'formats': video_formats,
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'title': xpath_text(metadata, 'title', fatal=True),
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'duration': parse_duration(xpath_text(metadata, 'endTime')),
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'creator': xpath_text(metadata, 'speaker'),
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}
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