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[udemy] Add support for react rendition (closes #12744)

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Sergey M․ 2017-04-15 03:26:19 +07:00
parent 57e2cb6c3a
commit 3dfceb286c
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1 changed files with 58 additions and 21 deletions
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79
youtube_dl/extractor/udemy.py
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@ -212,12 +212,15 @@ def _real_extract(self, url):
thumbnail = asset.get('thumbnail_url') or asset.get('thumbnailUrl')
duration = float_or_none(asset.get('data', {}).get('duration'))
subtitles = {}
automatic_captions = {}
formats = []
def extract_output_format(src):
def extract_output_format(src, f_id):
return {
'url': src['url'],
'format_id': '%sp' % (src.get('height') or format_id),
'format_id': '%sp' % (src.get('height') or f_id),
'width': int_or_none(src.get('width')),
'height': int_or_none(src.get('height')),
'vbr': int_or_none(src.get('video_bitrate_in_kbps')),
@ -237,30 +240,33 @@ def extract_output_format(src):
def add_output_format_meta(f, key):
output = outputs.get(key)
if isinstance(output, dict):
output_format = extract_output_format(output)
output_format = extract_output_format(output, key)
output_format.update(f)
return output_format
return f
def extract_formats(source_list):
if not isinstance(source_list, list):
return
for source in source_list:
video_url = source.get('file') or source.get('src')
if not video_url or not isinstance(video_url, compat_str):
continue
format_id = source.get('label')
f = {
'url': video_url,
'format_id': '%sp' % format_id,
'height': int_or_none(format_id),
}
if format_id:
# Some videos contain additional metadata (e.g.
# https://www.udemy.com/ios9-swift/learn/#/lecture/3383208)
f = add_output_format_meta(f, format_id)
formats.append(f)
download_urls = asset.get('download_urls')
if isinstance(download_urls, dict):
video = download_urls.get('Video')
if isinstance(video, list):
for format_ in video:
video_url = format_.get('file')
if not video_url:
continue
format_id = format_.get('label')
f = {
'url': format_['file'],
'format_id': '%sp' % format_id,
'height': int_or_none(format_id),
}
if format_id:
# Some videos contain additional metadata (e.g.
# https://www.udemy.com/ios9-swift/learn/#/lecture/3383208)
f = add_output_format_meta(f, format_id)
formats.append(f)
extract_formats(download_urls.get('Video'))
view_html = lecture.get('view_html')
if view_html:
@ -294,6 +300,35 @@ def add_output_format_meta(f, key):
'height': height,
}, res))
# react rendition since 2017.04.15 (see
# https://github.com/rg3/youtube-dl/issues/12744)
data = self._parse_json(
self._search_regex(
r'videojs-setup-data=(["\'])(?P<data>{.+?})\1', view_html,
'setup data', default='{}', group='data'), video_id,
transform_source=unescapeHTML, fatal=False)
if data and isinstance(data, dict):
extract_formats(data.get('sources'))
if not duration:
duration = int_or_none(data.get('duration'))
tracks = data.get('tracks')
if isinstance(tracks, list):
for track in tracks:
if not isinstance(track, dict):
continue
if track.get('kind') != 'captions':
continue
src = track.get('src')
if not src or not isinstance(src, compat_str):
continue
lang = track.get('language') or track.get(
'srclang') or track.get('label')
sub_dict = automatic_captions if track.get(
'autogenerated') is True else subtitles
sub_dict.setdefault(lang, []).append({
'url': src,
})
self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id'))
return {
@ -302,7 +337,9 @@ def add_output_format_meta(f, key):
'description': description,
'thumbnail': thumbnail,
'duration': duration,
'formats': formats
'formats': formats,
'subtitles': subtitles,
'automatic_captions': automatic_captions,
}