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1 | import re | |
2 | ||
3 | from .common import InfoExtractor | |
4 | from ..utils import ( | |
5 | ExtractorError, | |
6 | determine_ext, | |
7 | int_or_none, | |
8 | parse_iso8601, | |
9 | traverse_obj, | |
10 | variadic, | |
11 | ) | |
12 | ||
13 | ||
14 | class OpencastBaseIE(InfoExtractor): | |
15 | _INSTANCES_RE = r'''(?: | |
16 | opencast\.informatik\.kit\.edu| | |
17 | electures\.uni-muenster\.de| | |
18 | oc-presentation\.ltcc\.tuwien\.ac\.at| | |
19 | medien\.ph-noe\.ac\.at| | |
20 | oc-video\.ruhr-uni-bochum\.de| | |
21 | oc-video1\.ruhr-uni-bochum\.de| | |
22 | opencast\.informatik\.uni-goettingen\.de| | |
23 | heicast\.uni-heidelberg\.de| | |
24 | opencast\.hawk\.de:8080| | |
25 | opencast\.hs-osnabrueck\.de| | |
26 | video[0-9]+\.virtuos\.uni-osnabrueck\.de| | |
27 | opencast\.uni-koeln\.de| | |
28 | media\.opencast\.hochschule-rhein-waal\.de| | |
29 | matterhorn\.dce\.harvard\.edu| | |
30 | hs-harz\.opencast\.uni-halle\.de| | |
31 | videocampus\.urz\.uni-leipzig\.de| | |
32 | media\.uct\.ac\.za| | |
33 | vid\.igb\.illinois\.edu| | |
34 | cursosabertos\.c3sl\.ufpr\.br| | |
35 | mcmedia\.missioncollege\.org| | |
36 | clases\.odon\.edu\.uy | |
37 | )''' | |
38 | _UUID_RE = r'[\da-fA-F]{8}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{12}' | |
39 | ||
40 | def _call_api(self, host, video_id, **kwargs): | |
41 | return self._download_json(self._API_BASE % (host, video_id), video_id, **kwargs) | |
42 | ||
43 | def _parse_mediapackage(self, video): | |
44 | video_id = video.get('id') | |
45 | if video_id is None: | |
46 | raise ExtractorError('Video id was not found') | |
47 | ||
48 | formats = [] | |
49 | for track in variadic(traverse_obj(video, ('media', 'track')) or []): | |
50 | href = track.get('url') | |
51 | if href is None: | |
52 | continue | |
53 | ext = determine_ext(href, None) | |
54 | ||
55 | transport = track.get('transport') | |
56 | ||
57 | if transport == 'DASH' or ext == 'mpd': | |
58 | formats.extend(self._extract_mpd_formats(href, video_id, mpd_id='dash', fatal=False)) | |
59 | elif transport == 'HLS' or ext == 'm3u8': | |
60 | formats.extend(self._extract_m3u8_formats( | |
61 | href, video_id, m3u8_id='hls', entry_protocol='m3u8_native', fatal=False)) | |
62 | elif transport == 'HDS' or ext == 'f4m': | |
63 | formats.extend(self._extract_f4m_formats(href, video_id, f4m_id='hds', fatal=False)) | |
64 | elif transport == 'SMOOTH': | |
65 | formats.extend(self._extract_ism_formats(href, video_id, ism_id='smooth', fatal=False)) | |
66 | elif ext == 'smil': | |
67 | formats.extend(self._extract_smil_formats(href, video_id, fatal=False)) | |
68 | else: | |
69 | track_obj = { | |
70 | 'url': href, | |
71 | 'ext': ext, | |
72 | 'format_note': track.get('transport'), | |
73 | 'resolution': traverse_obj(track, ('video', 'resolution')), | |
74 | 'fps': int_or_none(traverse_obj(track, ('video', 'framerate'))), | |
75 | 'vbr': int_or_none(traverse_obj(track, ('video', 'bitrate')), scale=1000), | |
76 | 'vcodec': traverse_obj(track, ('video', 'encoder', 'type')) if track.get('video') else 'none', | |
77 | 'abr': int_or_none(traverse_obj(track, ('audio', 'bitrate')), scale=1000), | |
78 | 'asr': int_or_none(traverse_obj(track, ('audio', 'samplingrate'))), | |
79 | 'acodec': traverse_obj(track, ('audio', 'encoder', 'type')) if track.get('audio') else 'none', | |
80 | } | |
81 | ||
82 | if transport == 'RTMP': | |
83 | m_obj = re.search(r'(?:rtmp://[^/]+/(?P<app>[^/]+))/(?P<ext>.+):(?P<playpath>.+)', href) | |
84 | if not m_obj: | |
85 | continue | |
86 | track_obj.update({ | |
87 | 'app': m_obj.group('app'), | |
88 | 'ext': m_obj.group('ext'), | |
89 | 'play_path': m_obj.group('ext') + ':' + m_obj.group('playpath'), | |
90 | 'rtmp_live': True, | |
91 | 'preference': -2, | |
92 | }) | |
93 | formats.append(track_obj) | |
94 | ||
95 | return { | |
96 | 'id': video_id, | |
97 | 'formats': formats, | |
98 | 'title': video.get('title'), | |
99 | 'series': video.get('seriestitle'), | |
100 | 'season_id': video.get('series'), | |
101 | 'creator': traverse_obj(video, ('creators', 'creator')), | |
102 | 'timestamp': parse_iso8601(video.get('start')), | |
103 | 'thumbnail': traverse_obj(video, ('attachments', 'attachment', ..., 'url'), get_all=False), | |
104 | } | |
105 | ||
106 | ||
107 | class OpencastIE(OpencastBaseIE): | |
108 | _VALID_URL = rf'''(?x) | |
109 | https?://(?P<host>{OpencastBaseIE._INSTANCES_RE})/paella/ui/watch\.html\? | |
110 | (?:[^#]+&)?id=(?P<id>{OpencastBaseIE._UUID_RE})''' | |
111 | ||
112 | _API_BASE = 'https://%s/search/episode.json?id=%s' | |
113 | ||
114 | _TESTS = [ | |
115 | { | |
116 | 'url': 'https://oc-video1.ruhr-uni-bochum.de/paella/ui/watch.html?id=ed063cd5-72c8-46b5-a60a-569243edcea8', | |
117 | 'md5': '554c8e99a90f7be7e874619fcf2a3bc9', | |
118 | 'info_dict': { | |
119 | 'id': 'ed063cd5-72c8-46b5-a60a-569243edcea8', | |
120 | 'ext': 'mp4', | |
121 | 'title': '11 - Kryptographie - 24.11.2015', | |
122 | 'thumbnail': r're:^https?://.*\.jpg$', | |
123 | 'timestamp': 1606208400, | |
124 | 'upload_date': '20201124', | |
125 | 'season_id': 'cf68a4a1-36b1-4a53-a6ba-61af5705a0d0', | |
126 | 'series': 'Kryptographie - WiSe 15/16', | |
127 | 'creator': 'Alexander May', | |
128 | }, | |
129 | }, | |
130 | ] | |
131 | ||
132 | def _real_extract(self, url): | |
133 | host, video_id = self._match_valid_url(url).group('host', 'id') | |
134 | return self._parse_mediapackage( | |
135 | self._call_api(host, video_id)['search-results']['result']['mediapackage']) | |
136 | ||
137 | ||
138 | class OpencastPlaylistIE(OpencastBaseIE): | |
139 | _VALID_URL = rf'''(?x) | |
140 | https?://(?P<host>{OpencastBaseIE._INSTANCES_RE})(?: | |
141 | /engage/ui/index\.html\?(?:[^#]+&)?epFrom=| | |
142 | /ltitools/index\.html\?(?:[^#]+&)?series= | |
143 | )(?P<id>{OpencastBaseIE._UUID_RE})''' | |
144 | ||
145 | _API_BASE = 'https://%s/search/episode.json?sid=%s' | |
146 | ||
147 | _TESTS = [ | |
148 | { | |
149 | 'url': 'https://oc-video1.ruhr-uni-bochum.de/engage/ui/index.html?epFrom=cf68a4a1-36b1-4a53-a6ba-61af5705a0d0', | |
150 | 'info_dict': { | |
151 | 'id': 'cf68a4a1-36b1-4a53-a6ba-61af5705a0d0', | |
152 | 'title': 'Kryptographie - WiSe 15/16', | |
153 | }, | |
154 | 'playlist_mincount': 29, | |
155 | }, | |
156 | { | |
157 | 'url': 'https://oc-video1.ruhr-uni-bochum.de/ltitools/index.html?subtool=series&series=cf68a4a1-36b1-4a53-a6ba-61af5705a0d0&lng=de', | |
158 | 'info_dict': { | |
159 | 'id': 'cf68a4a1-36b1-4a53-a6ba-61af5705a0d0', | |
160 | 'title': 'Kryptographie - WiSe 15/16', | |
161 | }, | |
162 | 'playlist_mincount': 29, | |
163 | }, | |
164 | { | |
165 | 'url': 'https://electures.uni-muenster.de/engage/ui/index.html?e=1&p=1&epFrom=39391d10-a711-4d23-b21d-afd2ed7d758c', | |
166 | 'info_dict': { | |
167 | 'id': '39391d10-a711-4d23-b21d-afd2ed7d758c', | |
168 | 'title': '021670 Theologische Themen bei Hans Blumenberg WiSe 2017/18', | |
169 | }, | |
170 | 'playlist_mincount': 13, | |
171 | }, | |
172 | ] | |
173 | ||
174 | def _real_extract(self, url): | |
175 | host, video_id = self._match_valid_url(url).group('host', 'id') | |
176 | ||
177 | entries = [ | |
178 | self._parse_mediapackage(episode['mediapackage']) | |
179 | for episode in variadic(self._call_api(host, video_id)['search-results']['result']) | |
180 | if episode.get('mediapackage') | |
181 | ] | |
182 | ||
183 | return self.playlist_result(entries, video_id, traverse_obj(entries, (0, 'series'))) |