-# encoding: utf-8
+from __future__ import unicode_literals
import re
from .common import InfoExtractor
from ..utils import (
- format_bytes,
ExtractorError,
+ parse_filesize,
+ qualities,
)
+
class Channel9IE(InfoExtractor):
'''
Common extractor for channel9.msdn.com.
The type of provided URL (video or playlist) is determined according to
meta Search.PageType from web page HTML rather than URL itself, as it is
- not always possible to do.
+ not always possible to do.
'''
- IE_DESC = u'Channel 9'
- IE_NAME = u'channel9'
- _VALID_URL = r'^https?://(?:www\.)?channel9\.msdn\.com/(?P<contentpath>.+)/?'
+ IE_DESC = 'Channel 9'
+ IE_NAME = 'channel9'
+ _VALID_URL = r'https?://(?:www\.)?channel9\.msdn\.com/(?P<contentpath>.+)/?'
_TESTS = [
{
- u'url': u'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
- u'file': u'Events_TechEd_Australia_2013_KOS002.mp4',
- u'md5': u'bbd75296ba47916b754e73c3a4bbdf10',
- u'info_dict': {
- u'title': u'Developer Kick-Off Session: Stuff We Love',
- u'description': u'md5:c08d72240b7c87fcecafe2692f80e35f',
- u'duration': 4576,
- u'thumbnail': u'http://media.ch9.ms/ch9/9d51/03902f2d-fc97-4d3c-b195-0bfe15a19d51/KOS002_220.jpg',
- u'session_code': u'KOS002',
- u'session_day': u'Day 1',
- u'session_room': u'Arena 1A',
- u'session_speakers': [ u'Ed Blankenship', u'Andrew Coates', u'Brady Gaster', u'Patrick Klug', u'Mads Kristensen' ],
+ 'url': 'http://channel9.msdn.com/Events/TechEd/Australia/2013/KOS002',
+ 'md5': 'bbd75296ba47916b754e73c3a4bbdf10',
+ 'info_dict': {
+ 'id': 'Events/TechEd/Australia/2013/KOS002',
+ 'ext': 'mp4',
+ 'title': 'Developer Kick-Off Session: Stuff We Love',
+ 'description': 'md5:c08d72240b7c87fcecafe2692f80e35f',
+ 'duration': 4576,
+ 'thumbnail': 're:http://.*\.jpg',
+ 'session_code': 'KOS002',
+ 'session_day': 'Day 1',
+ 'session_room': 'Arena 1A',
+ 'session_speakers': ['Ed Blankenship', 'Andrew Coates', 'Brady Gaster', 'Patrick Klug', 'Mads Kristensen'],
+ },
+ },
+ {
+ 'url': 'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
+ 'md5': 'b43ee4529d111bc37ba7ee4f34813e68',
+ 'info_dict': {
+ 'id': 'posts/Self-service-BI-with-Power-BI-nuclear-testing',
+ 'ext': 'mp4',
+ 'title': 'Self-service BI with Power BI - nuclear testing',
+ 'description': 'md5:d1e6ecaafa7fb52a2cacdf9599829f5b',
+ 'duration': 1540,
+ 'thumbnail': 're:http://.*\.jpg',
+ 'authors': ['Mike Wilmot'],
},
},
{
- u'url': u'http://channel9.msdn.com/posts/Self-service-BI-with-Power-BI-nuclear-testing',
- u'file': u'posts_Self-service-BI-with-Power-BI-nuclear-testing.mp4',
- u'md5': u'b43ee4529d111bc37ba7ee4f34813e68',
- u'info_dict': {
- u'title': u'Self-service BI with Power BI - nuclear testing',
- u'description': u'md5:a6d5cfd9ee46d1851cf6e40ea61cfc10',
- u'duration': 1540,
- u'thumbnail': u'http://media.ch9.ms/ch9/87e1/0300391f-a455-4c72-bec3-4422f19287e1/selfservicenuk_512.jpg',
- u'authors': [ u'Mike Wilmot' ],
+ # low quality mp4 is best
+ 'url': 'https://channel9.msdn.com/Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library',
+ 'info_dict': {
+ 'id': 'Events/CPP/CppCon-2015/Ranges-for-the-Standard-Library',
+ 'ext': 'mp4',
+ 'title': 'Ranges for the Standard Library',
+ 'description': 'md5:2e6b4917677af3728c5f6d63784c4c5d',
+ 'duration': 5646,
+ 'thumbnail': 're:http://.*\.jpg',
+ },
+ 'params': {
+ 'skip_download': True,
},
}
]
_RSS_URL = 'http://channel9.msdn.com/%s/RSS'
- _EXTRACT_ENTRY_ITEMS_FROM_RSS = False
-
- # Sorted by quality
- _known_formats = ['MP3', 'MP4', 'Mid Quality WMV', 'Mid Quality MP4', 'High Quality WMV', 'High Quality MP4']
-
- def _restore_bytes(self, formatted_size):
- if not formatted_size:
- return 0
- m = re.match(r'^(?P<size>\d+(?:\.\d+)?)\s+(?P<units>[a-zA-Z]+)', formatted_size)
- if not m:
- return 0
- units = m.group('units')
- try:
- exponent = [u'B', u'KB', u'MB', u'GB', u'TB', u'PB', u'EB', u'ZB', u'YB'].index(units.upper())
- except ValueError:
- return 0
- size = float(m.group('size'))
- return int(size * (1024 ** exponent))
def _formats_from_html(self, html):
FORMAT_REGEX = r'''
<h3>File\s+size</h3>\s*(?P<filesize>.*?)\s*
</div>)? # File size part may be missing
'''
- # Extract known formats
- formats = [{'url': x.group('url'),
- 'format_id': x.group('quality'),
- 'format_note': x.group('note'),
- 'format': '%s (%s)' % (x.group('quality'), x.group('note')),
- 'filesize': self._restore_bytes(x.group('filesize')), # File size is approximate
- } for x in list(re.finditer(FORMAT_REGEX, html)) if x.group('quality') in self._known_formats]
- # Sort according to known formats list
- formats.sort(key=lambda fmt: self._known_formats.index(fmt['format_id']))
- return formats
+ quality = qualities((
+ 'MP3', 'MP4',
+ 'Low Quality WMV', 'Low Quality MP4',
+ 'Mid Quality WMV', 'Mid Quality MP4',
+ 'High Quality WMV', 'High Quality MP4'))
+ formats = [{
+ 'url': x.group('url'),
+ 'format_id': x.group('quality'),
+ 'format_note': x.group('note'),
+ 'format': '%s (%s)' % (x.group('quality'), x.group('note')),
+ 'filesize_approx': parse_filesize(x.group('filesize')),
+ 'quality': quality(x.group('quality')),
+ 'vcodec': 'none' if x.group('note') == 'Audio only' else None,
+ } for x in list(re.finditer(FORMAT_REGEX, html))]
+
+ self._sort_formats(formats)
- def _formats_from_rss_item(self, item):
-
- def process_formats(elem):
- formats = []
- for media_content in elem.findall('./{http://search.yahoo.com/mrss/}content'):
- url = media_content.attrib['url']
- # Ignore unrelated media
- if url.endswith('.ism/manifest'):
- continue
- format_note = media_content.attrib['type']
- filesize = int(media_content.attrib['fileSize'])
- formats.append({'url': url,
- 'format_note': format_note,
- 'format': '%s %s' % (format_note, format_bytes(filesize)),
- 'filesize': filesize,
- })
- return formats
-
- formats = []
-
- for media_group in item.findall('./{http://search.yahoo.com/mrss/}group'):
- formats.extend(process_formats(media_group))
-
- # Sometimes there are no media:groups in item, but there is media:content
- # right in item (usually when there is the only media source)
- formats.extend(process_formats(item))
-
- # Sort by file size
- formats.sort(key=lambda fmt: fmt['filesize'])
return formats
def _extract_title(self, html):
- title = self._html_search_meta(u'title', html, u'title')
- if title is None:
+ title = self._html_search_meta('title', html, 'title')
+ if title is None:
title = self._og_search_title(html)
- TITLE_SUFFIX = u' (Channel 9)'
+ TITLE_SUFFIX = ' (Channel 9)'
if title is not None and title.endswith(TITLE_SUFFIX):
title = title[:-len(TITLE_SUFFIX)]
return title
m = re.search(DESCRIPTION_REGEX, html)
if m is not None:
return m.group('description')
- return self._html_search_meta(u'description', html, u'description')
+ return self._html_search_meta('description', html, 'description')
def _extract_duration(self, html):
- m = re.search(r'data-video_duration="(?P<hours>\d{2}):(?P<minutes>\d{2}):(?P<seconds>\d{2})"', html)
+ m = re.search(r'"length": *"(?P<hours>\d{2}):(?P<minutes>\d{2}):(?P<seconds>\d{2})"', html)
return ((int(m.group('hours')) * 60 * 60) + (int(m.group('minutes')) * 60) + int(m.group('seconds'))) if m else None
def _extract_slides(self, html):
def _extract_session_day(self, html):
m = re.search(r'<li class="day">\s*<a href="/Events/[^"]+">(?P<day>[^<]+)</a>\s*</li>', html)
- return m.group('day') if m is not None else None
+ return m.group('day').strip() if m is not None else None
def _extract_session_room(self, html):
m = re.search(r'<li class="room">\s*(?P<room>.+?)\s*</li>', html)
return re.findall(r'<a href="/Events/Speakers/[^"]+">([^<]+)</a>', html)
def _extract_content(self, html, content_path):
- # Look for downloadable content
+ # Look for downloadable content
formats = self._formats_from_html(html)
slides = self._extract_slides(html)
zip_ = self._extract_zip(html)
# Nothing to download
if len(formats) == 0 and slides is None and zip_ is None:
- self._downloader.report_warning(u'None of recording, slides or zip are available for %s' % content_path)
+ self._downloader.report_warning('None of recording, slides or zip are available for %s' % content_path)
return
# Extract meta
view_count = self._extract_view_count(html)
comment_count = self._extract_comment_count(html)
- common = {'_type': 'video',
- 'id': content_path,
- 'description': description,
- 'thumbnail': thumbnail,
- 'duration': duration,
- 'avg_rating': avg_rating,
- 'rating_count': rating_count,
- 'view_count': view_count,
- 'comment_count': comment_count,
- }
+ common = {
+ '_type': 'video',
+ 'id': content_path,
+ 'description': description,
+ 'thumbnail': thumbnail,
+ 'duration': duration,
+ 'avg_rating': avg_rating,
+ 'rating_count': rating_count,
+ 'view_count': view_count,
+ 'comment_count': comment_count,
+ }
result = []
if slides is not None:
d = common.copy()
- d.update({ 'title': title + '-Slides', 'url': slides })
+ d.update({'title': title + '-Slides', 'url': slides})
result.append(d)
if zip_ is not None:
d = common.copy()
- d.update({ 'title': title + '-Zip', 'url': zip_ })
+ d.update({'title': title + '-Zip', 'url': zip_})
result.append(d)
if len(formats) > 0:
d = common.copy()
- d.update({ 'title': title, 'formats': formats })
+ d.update({'title': title, 'formats': formats})
result.append(d)
return result
if contents is None:
return contents
- authors = self._extract_authors(html)
-
- for content in contents:
- content['authors'] = authors
+ if len(contents) > 1:
+ raise ExtractorError('Got more than one entry')
+ result = contents[0]
+ result['authors'] = self._extract_authors(html)
- return contents
+ return result
def _extract_session(self, html, content_path):
contents = self._extract_content(html, content_path)
if contents is None:
return contents
- session_meta = {'session_code': self._extract_session_code(html),
- 'session_day': self._extract_session_day(html),
- 'session_room': self._extract_session_room(html),
- 'session_speakers': self._extract_session_speakers(html),
- }
+ session_meta = {
+ 'session_code': self._extract_session_code(html),
+ 'session_day': self._extract_session_day(html),
+ 'session_room': self._extract_session_room(html),
+ 'session_speakers': self._extract_session_speakers(html),
+ }
for content in contents:
content.update(session_meta)
- return contents
-
- def _extract_content_rss(self, rss):
- '''
- Extracts links to entry items right out of RSS feed.
- This approach is faster than extracting from web pages
- one by one, but suffers from some problems.
- Pros:
- - no need to download additional pages
- - provides more media links
- - accurate file size
- Cons:
- - fewer meta data provided
- - links to media files have no appropriate data that may be used as format_id
- - RSS does not contain links to presentation materials (slides, zip)
- '''
- entries = []
- for item in rss.findall('./channel/item'):
- url = item.find('./link').text
- video_id = url.split('/')[-1]
- formats = self._formats_from_rss_item(item)
-
- if len(formats) == 0:
- self._downloader.report_warning(u'The recording for session %s is not yet available' % video_id)
- continue
-
- title = item.find('./title').text
- description = item.find('./description').text
-
- thumbnail = item.find('./{http://search.yahoo.com/mrss/}thumbnail').text
-
- duration_e = item.find('./{http://www.itunes.com/dtds/podcast-1.0.dtd}duration')
- duration = duration_e.text if duration_e is not None else 0
-
- speakers_e = item.find('./{http://purl.org/dc/elements/1.1/}creator')
- speakers = speakers_e.text.split(', ') if speakers_e is not None and speakers_e.text else []
-
- entries.append({'_type': 'video',
- 'id': video_id,
- 'formats': formats,
- 'title': title,
- 'description': description,
- 'thumbnail': thumbnail,
- 'duration': duration,
- 'session_speakers': speakers,
- })
- return entries
+ return self.playlist_result(contents)
def _extract_list(self, content_path):
- rss = self._download_xml(self._RSS_URL % content_path, content_path, u'Downloading RSS')
- if self._EXTRACT_ENTRY_ITEMS_FROM_RSS:
- return self._extract_content_rss(rss)
- else:
- entries = [self.url_result(session_url.text, 'Channel9')
- for session_url in rss.findall('./channel/item/link')]
- title_text = rss.find('./channel/title').text
- return self.playlist_result(entries, content_path, title_text)
+ rss = self._download_xml(self._RSS_URL % content_path, content_path, 'Downloading RSS')
+ entries = [self.url_result(session_url.text, 'Channel9')
+ for session_url in rss.findall('./channel/item/link')]
+ title_text = rss.find('./channel/title').text
+ return self.playlist_result(entries, content_path, title_text)
def _real_extract(self, url):
mobj = re.match(self._VALID_URL, url)
content_path = mobj.group('contentpath')
- webpage = self._download_webpage(url, content_path, u'Downloading web page')
-
- page_type_m = re.search(r'<meta name="Search.PageType" content="(?P<pagetype>[^"]+)"/>', webpage)
- if page_type_m is None:
- raise ExtractorError(u'Search.PageType not found, don\'t know how to process this page', expected=True)
-
- page_type = page_type_m.group('pagetype')
- if page_type == 'List': # List page, may contain list of 'item'-like objects
+ webpage = self._download_webpage(url, content_path, 'Downloading web page')
+
+ page_type_m = re.search(r'<meta name="WT.entryid" content="(?P<pagetype>[^:]+)[^"]+"/>', webpage)
+ if page_type_m is not None:
+ page_type = page_type_m.group('pagetype')
+ if page_type == 'Entry': # Any 'item'-like page, may contain downloadable content
+ return self._extract_entry_item(webpage, content_path)
+ elif page_type == 'Session': # Event session page, may contain downloadable content
+ return self._extract_session(webpage, content_path)
+ elif page_type == 'Event':
+ return self._extract_list(content_path)
+ else:
+ raise ExtractorError('Unexpected WT.entryid %s' % page_type, expected=True)
+
+ else: # Assuming list
return self._extract_list(content_path)
- elif page_type == 'Entry.Item': # Any 'item'-like page, may contain downloadable content
- return self._extract_entry_item(webpage, content_path)
- elif page_type == 'Session': # Event session page, may contain downloadable content
- return self._extract_session(webpage, content_path)
- else:
- raise ExtractorError(u'Unexpected Search.PageType %s' % page_type, expected=True)
\ No newline at end of file
projects / youtube-dl / blobdiff