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[mediasite] Improve extraction and code style, add support for DASH (closes #11185, closes #14343, refs #5428)

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master
Sergey M․ 6 years ago
parent 8056c8542d
commit 2ca7ed41fe
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GPG Key ID: 2C393E0F18A9236D
2 changed files with 100 additions and 57 deletions
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29
youtube_dl/extractor/generic.py
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@ -100,6 +100,7 @@ from .megaphone import MegaphoneIE
from .vzaar import VzaarIE
from .channel9 import Channel9IE
from .vshare import VShareIE
from .mediasite import MediasiteIE
class GenericIE(InfoExtractor):
@ -1925,6 +1926,18 @@ class GenericIE(InfoExtractor):
'title': 'vl14062007715967',
'ext': 'mp4',
}
},
{
'url': 'http://www.heidelberg-laureate-forum.org/blog/video/lecture-friday-september-23-2016-sir-c-antony-r-hoare/',
'md5': 'aecd089f55b1cb5a59032cb049d3a356',
'info_dict': {
'id': '90227f51a80c4d8f86c345a7fa62bd9a1d',
'ext': 'mp4',
'title': 'Lecture: Friday, September 23, 2016 - Sir Tony Hoare',
'description': 'md5:5a51db84a62def7b7054df2ade403c6c',
'timestamp': 1474354800,
'upload_date': '20160920',
}
}
# {
# # TODO: find another test
@ -2884,14 +2897,14 @@ class GenericIE(InfoExtractor):
vshare_urls, video_id, video_title, ie=VShareIE.ie_key())
# Look for Mediasite embeds
mobj = re.search(r'''(?xi)
<iframe[^>]+src="((?:https?://[a-z0-9\-\.:\[\]]+)?
/Mediasite/Play/[0-9a-f]{32,34}(?:\?.*?)?)"
''', webpage)
if mobj is not None:
return self.url_result(smuggle_url(
compat_urlparse.urljoin(url, unescapeHTML(mobj.group(1))),
{ 'UrlReferrer': url }), 'Livestream')
mediasite_urls = MediasiteIE._extract_urls(webpage)
if mediasite_urls:
entries = [
self.url_result(smuggle_url(
compat_urlparse.urljoin(url, mediasite_url),
{'UrlReferrer': url}), ie=MediasiteIE.ie_key())
for mediasite_url in mediasite_urls]
return self.playlist_result(entries, video_id, video_title)
def merge_dicts(dict1, dict2):
merged = {}

128
youtube_dl/extractor/mediasite.py
Unescape Escape View File

@ -5,21 +5,22 @@ import re
import json
from .common import InfoExtractor
from ..compat import compat_urlparse
from ..compat import (
compat_str,
compat_urlparse,
)
from ..utils import (
ExtractorError,
unsmuggle_url,
mimetype2ext,
float_or_none,
mimetype2ext,
unescapeHTML,
unsmuggle_url,
urljoin,
)
class MediasiteIE(InfoExtractor):
_VALID_URL = r'''(?xi)
https?://[a-z0-9\-\.:\[\]]+/Mediasite/Play/
(?P<id>[0-9a-f]{32,34})
(?P<QueryString>\?[^#]+|)
'''
_VALID_URL = r'(?xi)https?://[^/]+/Mediasite/Play/(?P<id>[0-9a-f]{32,34})(?P<query>\?[^#]+|)'
_TESTS = [
{
'url': 'https://hitsmediaweb.h-its.org/mediasite/Play/2db6c271681e4f199af3c60d1f82869b1d',
@ -87,67 +88,96 @@ class MediasiteIE(InfoExtractor):
# look in Mediasite.Core.js (Mediasite.ContentStreamType[*])
_STREAM_TYPES = {
0: 'video1', # the main video
0: 'video1', # the main video
2: 'slide',
3: 'presentation',
4: 'video2', # screencast?
4: 'video2', # screencast?
5: 'video3',
}
@staticmethod
def _extract_urls(webpage):
return [
unescapeHTML(mobj.group('url'))
for mobj in re.finditer(
r'(?xi)<iframe\b[^>]+\bsrc=(["\'])(?P<url>(?:(?:https?:)?//[^/]+)?/Mediasite/Play/[0-9a-f]{32,34}(?:\?.*?)?)\1',
webpage)]
def _real_extract(self, url):
url, data = unsmuggle_url(url, {})
mobj = re.match(self._VALID_URL, url)
ResourceId = mobj.group('id')
QueryString = mobj.group('QueryString')
resource_id = mobj.group('id')
query = mobj.group('query')
webpage = self._download_webpage(url, ResourceId) # XXX: add UrlReferrer?
webpage, urlh = self._download_webpage_handle(url, resource_id) # XXX: add UrlReferrer?
redirect_url = compat_str(urlh.geturl())
# XXX: might have also extracted UrlReferrer and QueryString from the html
ServicePath = compat_urlparse.urljoin(url, self._html_search_regex(
r'<div id="ServicePath">(.+?)</div>', webpage, ResourceId,
service_path = compat_urlparse.urljoin(redirect_url, self._html_search_regex(
r'<div[^>]+\bid=["\']ServicePath[^>]+>(.+?)</div>', webpage, resource_id,
default='/Mediasite/PlayerService/PlayerService.svc/json'))
PlayerOptions = self._download_json(
'%s/GetPlayerOptions' % (ServicePath), ResourceId,
player_options = self._download_json(
'%s/GetPlayerOptions' % service_path, resource_id,
headers={
'Content-type': 'application/json; charset=utf-8',
'X-Requested-With': 'XMLHttpRequest',
},
data=json.dumps({
'getPlayerOptionsRequest': {
'ResourceId': ResourceId,
'QueryString': QueryString,
'ResourceId': resource_id,
'QueryString': query,
'UrlReferrer': data.get('UrlReferrer', ''),
'UseScreenReader': False,
}
}).encode('utf-8'))
Presentation = PlayerOptions['d']['Presentation']
if Presentation is None:
raise ExtractorError('Mediasite says: %s' %
(PlayerOptions['d']['PlayerPresentationStatusMessage'],),
}).encode('utf-8'))['d']
presentation = player_options['Presentation']
title = presentation['Title']
if presentation is None:
raise ExtractorError(
'Mediasite says: %s' % player_options['PlayerPresentationStatusMessage'],
expected=True)
thumbnails = []
formats = []
for snum, Stream in enumerate(Presentation['Streams']):
stream_type = self._STREAM_TYPES.get(
Stream['StreamType'], 'type%u' % Stream['StreamType'])
for snum, Stream in enumerate(presentation['Streams']):
stream_type = Stream.get('StreamType')
if stream_type is None:
continue
video_urls = Stream.get('VideoUrls')
if not isinstance(video_urls, list):
video_urls = []
stream_id = self._STREAM_TYPES.get(
stream_type, 'type%u' % stream_type)
stream_formats = []
for unum, VideoUrl in enumerate(Stream['VideoUrls']):
url = VideoUrl['Location']
for unum, VideoUrl in enumerate(video_urls):
video_url = VideoUrl.get('Location')
if not video_url or not isinstance(video_url, compat_str):
continue
# XXX: if Stream.get('CanChangeScheme', False), switch scheme to HTTP/HTTPS
if VideoUrl['MediaType'] == 'SS':
media_type = VideoUrl.get('MediaType')
if media_type == 'SS':
stream_formats.extend(self._extract_ism_formats(
url, ResourceId, ism_id='%s-%u.%u' % (stream_type, snum, unum)))
continue
stream_formats.append({
'format_id': '%s-%u.%u' % (stream_type, snum, unum),
'url': url,
'ext': mimetype2ext(VideoUrl['MimeType']),
})
video_url, resource_id,
ism_id='%s-%u.%u' % (stream_id, snum, unum),
fatal=False))
elif media_type == 'Dash':
stream_formats.extend(self._extract_mpd_formats(
video_url, resource_id,
mpd_id='%s-%u.%u' % (stream_id, snum, unum),
fatal=False))
else:
stream_formats.append({
'format_id': '%s-%u.%u' % (stream_id, snum, unum),
'url': video_url,
'ext': mimetype2ext(VideoUrl.get('MimeType')),
})
# TODO: if Stream['HasSlideContent']:
# synthesise an MJPEG video stream '%s-%u.slides' % (stream_type, snum)
@ -155,16 +185,16 @@ class MediasiteIE(InfoExtractor):
# this will require writing a custom downloader...
# disprefer 'secondary' streams
if Stream['StreamType'] != 0:
if stream_type != 0:
for fmt in stream_formats:
fmt['preference'] = -1
ThumbnailUrl = Stream.get('ThumbnailUrl')
if ThumbnailUrl:
thumbnail_url = Stream.get('ThumbnailUrl')
if thumbnail_url:
thumbnails.append({
'id': '%s-%u' % (stream_type, snum),
'url': compat_urlparse.urljoin(url, ThumbnailUrl),
'preference': -1 if Stream['StreamType'] != 0 else 0,
'id': '%s-%u' % (stream_id, snum),
'url': urljoin(redirect_url, thumbnail_url),
'preference': -1 if stream_type != 0 else 0,
})
formats.extend(stream_formats)
@ -174,11 +204,11 @@ class MediasiteIE(InfoExtractor):
# XXX: Presentation['Transcript']
return {
'id': ResourceId,
'title': Presentation['Title'],
'description': Presentation.get('Description'),
'duration': float_or_none(Presentation.get('Duration'), 1000),
'timestamp': float_or_none(Presentation.get('UnixTime'), 1000),
'id': resource_id,
'title': title,
'description': presentation.get('Description'),
'duration': float_or_none(presentation.get('Duration'), 1000),
'timestamp': float_or_none(presentation.get('UnixTime'), 1000),
'formats': formats,
'thumbnails': thumbnails,
}

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