mirror of
https://github.com/yt-dlp/yt-dlp.git
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263 lines
10 KiB
Python
263 lines
10 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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ExtractorError,
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unescapeHTML,
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int_or_none,
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parse_iso8601,
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clean_html,
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qualities,
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)
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class Channel9IE(InfoExtractor):
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'''
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Common extractor for channel9.msdn.com.
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The type of provided URL (video or playlist) is determined according to
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meta Search.PageType from web page HTML rather than URL itself, as it is
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not always possible to do.
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'''
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IE_DESC = 'Channel 9'
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IE_NAME = 'channel9'
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_VALID_URL = r'https?://(?:www\.)?(?:channel9\.msdn\.com|s\.ch9\.ms)/(?P<contentpath>.+?)(?P<rss>/RSS)?/?(?:[?#&]|$)'
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_TESTS = [{
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'url': 'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
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'md5': '32083d4eaf1946db6d454313f44510ca',
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'info_dict': {
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'id': '6c413323-383a-49dc-88f9-a22800cab024',
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'ext': 'wmv',
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'title': 'Developer Kick-Off Session: Stuff We Love',
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'description': 'md5:b80bf9355a503c193aff7ec6cd5a7731',
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'duration': 4576,
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'thumbnail': r're:https?://.*\.jpg',
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'timestamp': 1377717420,
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'upload_date': '20130828',
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'session_code': 'KOS002',
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'session_room': 'Arena 1A',
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'session_speakers': ['Andrew Coates', 'Brady Gaster', 'Mads Kristensen', 'Ed Blankenship', 'Patrick Klug'],
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},
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}, {
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'url': 'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
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'md5': 'dcf983ee6acd2088e7188c3cf79b46bc',
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'info_dict': {
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'id': 'fe8e435f-bb93-4e01-8e97-a28c01887024',
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'ext': 'wmv',
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'title': 'Self-service BI with Power BI - nuclear testing',
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'description': 'md5:2d17fec927fc91e9e17783b3ecc88f54',
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'duration': 1540,
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'thumbnail': r're:https?://.*\.jpg',
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'timestamp': 1386381991,
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'upload_date': '20131207',
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'authors': ['Mike Wilmot'],
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},
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}, {
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# low quality mp4 is best
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'url': 'https://channel9.msdn.com/Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library',
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'info_dict': {
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'id': '33ad69d2-6a4e-4172-83a1-a523013dec76',
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'ext': 'mp4',
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'title': 'Ranges for the Standard Library',
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'description': 'md5:9895e0a9fd80822d2f01c454b8f4a372',
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'duration': 5646,
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'thumbnail': r're:https?://.*\.jpg',
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'upload_date': '20150930',
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'timestamp': 1443640735,
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},
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'params': {
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'skip_download': True,
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},
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}, {
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'url': 'https://channel9.msdn.com/Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b/RSS',
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'info_dict': {
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'id': 'Niners/Splendid22/Queue/76acff796e8f411184b008028e0d492b',
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'title': 'Channel 9',
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},
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'playlist_mincount': 100,
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}, {
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'url': 'https://channel9.msdn.com/Events/DEVintersection/DEVintersection-2016/RSS',
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'only_matching': True,
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}, {
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'url': 'https://channel9.msdn.com/Events/Speakers/scott-hanselman/RSS?UrlSafeName=scott-hanselman',
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'only_matching': True,
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}]
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_RSS_URL = 'http://channel9.msdn.com/%s/RSS'
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def _extract_list(self, video_id, rss_url=None):
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if not rss_url:
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rss_url = self._RSS_URL % video_id
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rss = self._download_xml(rss_url, video_id, 'Downloading RSS')
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entries = [self.url_result(session_url.text, 'Channel9')
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for session_url in rss.findall('./channel/item/link')]
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title_text = rss.find('./channel/title').text
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return self.playlist_result(entries, video_id, title_text)
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def _real_extract(self, url):
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content_path, rss = re.match(self._VALID_URL, url).groups()
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if rss:
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return self._extract_list(content_path, url)
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webpage = self._download_webpage(
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url, content_path, 'Downloading web page')
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episode_data = self._search_regex(
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r"data-episode='([^']+)'", webpage, 'episode data', default=None)
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if episode_data:
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episode_data = self._parse_json(unescapeHTML(
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episode_data), content_path)
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content_id = episode_data['contentId']
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is_session = '/Sessions(' in episode_data['api']
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content_url = 'https://channel9.msdn.com/odata' + episode_data['api']
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if is_session:
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content_url += '?$expand=Speakers'
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else:
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content_url += '?$expand=Authors'
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content_data = self._download_json(content_url, content_id)
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title = content_data['Title']
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QUALITIES = (
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'mp3',
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'wmv', 'mp4',
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'wmv-low', 'mp4-low',
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'wmv-mid', 'mp4-mid',
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'wmv-high', 'mp4-high',
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)
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quality_key = qualities(QUALITIES)
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def quality(quality_id, format_url):
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return (len(QUALITIES) if '_Source.' in format_url
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else quality_key(quality_id))
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formats = []
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urls = set()
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SITE_QUALITIES = {
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'MP3': 'mp3',
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'MP4': 'mp4',
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'Low Quality WMV': 'wmv-low',
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'Low Quality MP4': 'mp4-low',
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'Mid Quality WMV': 'wmv-mid',
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'Mid Quality MP4': 'mp4-mid',
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'High Quality WMV': 'wmv-high',
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'High Quality MP4': 'mp4-high',
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}
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formats_select = self._search_regex(
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r'(?s)<select[^>]+name=["\']format[^>]+>(.+?)</select', webpage,
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'formats select', default=None)
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if formats_select:
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for mobj in re.finditer(
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r'<option\b[^>]+\bvalue=(["\'])(?P<url>(?:(?!\1).)+)\1[^>]*>\s*(?P<format>[^<]+?)\s*<',
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formats_select):
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format_url = mobj.group('url')
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if format_url in urls:
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continue
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urls.add(format_url)
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format_id = mobj.group('format')
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quality_id = SITE_QUALITIES.get(format_id, format_id)
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formats.append({
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'url': format_url,
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'format_id': quality_id,
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'quality': quality(quality_id, format_url),
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'vcodec': 'none' if quality_id == 'mp3' else None,
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})
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API_QUALITIES = {
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'VideoMP4Low': 'mp4-low',
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'VideoWMV': 'wmv-mid',
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'VideoMP4Medium': 'mp4-mid',
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'VideoMP4High': 'mp4-high',
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'VideoWMVHQ': 'wmv-hq',
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}
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for format_id, q in API_QUALITIES.items():
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q_url = content_data.get(format_id)
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if not q_url or q_url in urls:
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continue
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urls.add(q_url)
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formats.append({
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'url': q_url,
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'format_id': q,
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'quality': quality(q, q_url),
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})
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self._sort_formats(formats)
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slides = content_data.get('Slides')
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zip_file = content_data.get('ZipFile')
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if not formats and not slides and not zip_file:
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raise ExtractorError(
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'None of recording, slides or zip are available for %s' % content_path)
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subtitles = {}
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for caption in content_data.get('Captions', []):
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caption_url = caption.get('Url')
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if not caption_url:
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continue
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subtitles.setdefault(caption.get('Language', 'en'), []).append({
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'url': caption_url,
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'ext': 'vtt',
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})
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common = {
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'id': content_id,
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'title': title,
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'description': clean_html(content_data.get('Description') or content_data.get('Body')),
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'thumbnail': content_data.get('Thumbnail') or content_data.get('VideoPlayerPreviewImage'),
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'duration': int_or_none(content_data.get('MediaLengthInSeconds')),
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'timestamp': parse_iso8601(content_data.get('PublishedDate')),
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'avg_rating': int_or_none(content_data.get('Rating')),
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'rating_count': int_or_none(content_data.get('RatingCount')),
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'view_count': int_or_none(content_data.get('Views')),
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'comment_count': int_or_none(content_data.get('CommentCount')),
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'subtitles': subtitles,
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}
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if is_session:
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speakers = []
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for s in content_data.get('Speakers', []):
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speaker_name = s.get('FullName')
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if not speaker_name:
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continue
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speakers.append(speaker_name)
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common.update({
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'session_code': content_data.get('Code'),
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'session_room': content_data.get('Room'),
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'session_speakers': speakers,
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})
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else:
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authors = []
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for a in content_data.get('Authors', []):
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author_name = a.get('DisplayName')
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if not author_name:
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continue
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authors.append(author_name)
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common['authors'] = authors
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contents = []
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if slides:
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d = common.copy()
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d.update({'title': title + '-Slides', 'url': slides})
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contents.append(d)
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if zip_file:
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d = common.copy()
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d.update({'title': title + '-Zip', 'url': zip_file})
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contents.append(d)
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if formats:
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d = common.copy()
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d.update({'title': title, 'formats': formats})
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contents.append(d)
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return self.playlist_result(contents)
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else:
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return self._extract_list(content_path)
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