lopar/youtube-dl
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Mostly ready for contribution

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This commit is contained in:
Olivier Berger 2020-05-01 22:07:23 +02:00
parent 3e70b4f036
commit a7756ff597
2 changed files with 45 additions and 12 deletions
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56
youtube_dl/extractor/bbb.py
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@ -1,5 +1,7 @@
# coding: utf-8
# Contributed by Olivier Berger <olivier.berger@telecom-sudparis.eu>
# Extract material from recordings made inside BigBlueButton
# BigBlueButton records multiple videos :
@ -8,14 +10,21 @@
# for slides, annotations, etc. the playback app typically renders them on the fly upon playback
# so it may not be easy to capture that with youtube-dl
# Extract a merged video, without the slides with
# youtube-dl --merge-output-format mkv -f slides+speaker "https://mybbb.example.com/playback/presentation/2.0/playback.html?meetingId=12345679a50a715e8d6dc692df996dceb8d788f8-1234566973639"
from __future__ import unicode_literals
from .common import InfoExtractor
from .openload import PhantomJSwrapper
from ..utils import (
unified_timestamp,
xpath_text,
xpath_with_ns,
)
# TODO : thumbnails
_s = lambda p: xpath_with_ns(p, {'svg': 'http://www.w3.org/2000/svg'})
_x = lambda p: xpath_with_ns(p, {'xlink': 'http://www.w3.org/1999/xlink'})
class BigBlueButtonIE(InfoExtractor):
_VALID_URL = r'(?P<website>https?://[^/]+)/playback/presentation/2.0/playback.html\?meetingId=(?P<id>[0-9a-f\-]+)'
@ -39,17 +48,42 @@ class BigBlueButtonIE(InfoExtractor):
video_id = self._match_id(url)
m = self._VALID_URL_RE.match(url)
website = m.group('website')
#print(video_id)
print(website)
webpage = self._download_webpage(url, video_id)
# print(webpagejs)
# Extract basic metadata (more available in metadata.xml)
metadata_url = website + '/presentation/' + video_id + '/metadata.xml'
metadata = self._download_xml(metadata_url, video_id)
# TODO more code goes here, for example ...
#title = self._html_search_regex(r'<h1>(.+?)</h1>', webpage, 'title')
title = video_id
id = xpath_text(metadata, 'id')
meta = metadata.find('./meta')
meeting_name = xpath_text(meta, 'meetingName')
start_time = xpath_text(metadata, 'start_time')
title = meeting_name
# This code unused : have to grasp what to do with thumbnails
thumbnails = []
images = metadata.find('./playback/extensions/preview/images')
for image in images:
thumbnails += {
'url': image.text.strip(),
'width': image.get('width'),
'height': image.get('height')
}
# This code mostly useless unless one know how to process slides
shapes_url = website + '/presentation/' + video_id + '/shapes.svg'
shapes = self._download_xml(shapes_url, video_id)
images = shapes.findall(_s("./svg:image[@class='slide']"))
slides = []
for image in images:
slides.append(image.get(_x('xlink:href')))
# We produce 2 formats :
# - the 'webcams.webm' one, for speaker (can be used for merging its audio)
# - the 'deskshare.webm' one, for screen sharing (can be used
# for merging its video) - it lacks the slides unfortunately
formats = []
sources = { 'speaker': '/video/webcams.webm', 'slides': '/deskshare/deskshare.webm' }
@ -65,8 +99,6 @@ class BigBlueButtonIE(InfoExtractor):
'id': video_id,
'title': title,
'formats': formats,
# 'description': self._og_search_description(webpage),
# 'uploader': self._search_regex(r'<div[^>]+id="uploader"[^>]*>([^<]+)<', webpage, 'uploader', fatal=False),
# TODO more properties (see youtube_dl/extractor/common.py)
'timestamp': int(start_time),
# 'thumbnails': thumbnails
}

1
youtube_dl/extractor/extractors.py
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@ -81,6 +81,7 @@ from .awaan import (
from .azmedien import AZMedienIE
from .baidu import BaiduVideoIE
from .bandcamp import BandcampIE, BandcampAlbumIE, BandcampWeeklyIE
from .bbb import BigBlueButtonIE
from .bbc import (
BBCCoUkIE,
BBCCoUkArticleIE,