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-rw-r--r--youtube_dl/extractor/udemy.py47
1 files changed, 30 insertions, 17 deletions
diff --git a/youtube_dl/extractor/udemy.py b/youtube_dl/extractor/udemy.py
index 160be1b1b..3b02f43e3 100644
--- a/youtube_dl/extractor/udemy.py
+++ b/youtube_dl/extractor/udemy.py
@@ -15,6 +15,7 @@ from ..utils import (
ExtractorError,
float_or_none,
int_or_none,
+ js_to_json,
sanitized_Request,
unescapeHTML,
urlencode_postdata,
@@ -268,6 +269,25 @@ class UdemyIE(InfoExtractor):
f = add_output_format_meta(f, format_id)
formats.append(f)
+ def extract_subtitles(track_list):
+ if not isinstance(track_list, list):
+ return
+ for track in track_list:
+ 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,
+ })
+
download_urls = asset.get('download_urls')
if isinstance(download_urls, dict):
extract_formats(download_urls.get('Video'))
@@ -315,23 +335,16 @@ class UdemyIE(InfoExtractor):
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,
- })
+ extract_subtitles(data.get('tracks'))
+
+ if not subtitles and not automatic_captions:
+ text_tracks = self._parse_json(
+ self._search_regex(
+ r'text-tracks=(["\'])(?P<data>\[.+?\])\1', view_html,
+ 'text tracks', default='{}', group='data'), video_id,
+ transform_source=lambda s: js_to_json(unescapeHTML(s)),
+ fatal=False)
+ extract_subtitles(text_tracks)
self._sort_formats(formats, field_preference=('height', 'width', 'tbr', 'format_id'))