[opencast] Add new extractor. Currently only single videos.

youtube_dl/extractor/extractors.py

@@ -798,6 +798,7 @@ from .ooyala import (
     OoyalaIE,
     OoyalaExternalIE,
 )
+from .opencast import OpencastIE
 from .ora import OraTVIE
 from .orf import (
     ORFTVthekIE,

youtube_dl/extractor/opencast.py

@@ -0,0 +1,129 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+import re
+
+from .common import InfoExtractor
+from ..utils import parse_iso8601, parse_resolution, int_or_none
+
+
+class OpencastIE(InfoExtractor):
+    IE_NAME = 'Opencast'
+    _INSTANCES_RE = r'''(?:
+                            opencast\.informatik\.kit\.edu|
+                            electures\.uni-muenster\.de|
+                            oc-presentation\.ltcc\.tuwien\.ac\.at|
+                            medien\.ph-noe\.ac\.at|
+                            oc-video\.ruhr-uni-bochum\.de|
+                            oc-video1\.ruhr-uni-bochum\.de|
+                            opencast\.informatik\.uni-goettingen\.de|
+                            heicast\.uni-heidelberg\.de|
+                            opencast\.hawk\.de:8080|
+                            opencast\.hs-osnabrueck\.de|
+                            opencast\.uni-koeln\.de|
+                            media\.opencast\.hochschule-rhein-waal\.de|
+                            matterhorn\.dce\.harvard\.edu|
+                            hs-harz\.opencast\.uni-halle\.de|
+                            videocampus\.urz\.uni-leipzig\.de|
+                            media\.uct\.ac\.za|
+                            vid\.igb\.illinois\.edu|
+                            cursosabertos\.c3sl\.ufpr\.br|
+                            mcmedia\.missioncollege\.org|
+                            clases\.odon\.edu\.uy
+                        )'''
+
+    _UUID_RE = r'[\da-fA-F]{8}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{4}-[\da-fA-F]{12}'
+
+    _VALID_URL = r'''(?x)
+                    https?://(?P<host>%s)/paella/ui/watch.html\?.*?
+                    id=(?P<id>%s)
+                    ''' % (
+        _INSTANCES_RE,
+        _UUID_RE,
+    )
+
+    _API_BASE = 'https://%s/search/episode.json?id=%s'
+
+    _TEST = {
+        'url': 'https://oc-video1.ruhr-uni-bochum.de/paella/ui/watch.html?id=ed063cd5-72c8-46b5-a60a-569243edcea8',
+        'md5': '554c8e99a90f7be7e874619fcf2a3bc9',
+        'info_dict': {
+            'id': 'ed063cd5-72c8-46b5-a60a-569243edcea8',
+            'ext': 'mp4',
+            'title': '11 - Kryptographie - 24.11.2015',
+            'thumbnail': r're:^https?://.*\.jpg$',
+            'timestamp': 1606208400,
+            'upload_date': '20201124'
+        },
+    }
+
+    def _call_api(self, host, video_id, path, note=None, errnote=None, fatal=True):
+        return self._download_json(self._API_BASE % (host, video_id), video_id, note=note, errnote=errnote, fatal=fatal)
+
+    def _real_extract(self, url):
+        mobj = re.match(self._VALID_URL, url)
+        host = mobj.group('host')
+        video_id = mobj.group('id')
+
+        api_json = self._call_api(host, video_id, '', note='Downloading video JSON')
+
+        video = api_json.get('search-results', {}).get('result', {}).get('mediapackage', {})
+
+        # webpage = self._download_webpage(url, video_id)
+
+        title = video.get('title', '')
+        series = video.get('seriestitle', '')
+        season_id = video.get('series', '')
+        creator = video.get('creators', {}).get('creator', '')
+        timestamp = parse_iso8601(video.get('start', ''))
+
+        tracks = video.get('media', {}).get('track', [])
+        formats = []
+
+        for track in tracks:
+            track_obj = {'url': track['url']}
+
+            audio_info = track.get('audio')
+            if audio_info is not None:
+                if 'bitrate' in audio_info:
+                    track_obj.update({'abr': int_or_none(audio_info.get('bitrate'), 1000)})
+                if 'samplingrate' in audio_info:
+                    track_obj.update({'asr': int_or_none(audio_info.get('samplingrate'))})
+                audio_encoder = audio_info.get('encoder', {})
+                if 'type' in audio_encoder:
+                    track_obj.update({'acodec': audio_encoder.get('type')})
+
+            video_info = track.get('video')
+            if video_info is not None:
+                if 'resolution' in video_info:
+                    track_obj.update({'resolution': video_info.get('resolution')})
+                    resolution = parse_resolution(video_info.get('resolution'))
+                    track_obj.update(resolution)
+                if 'framerate' in video_info:
+                    track_obj.update({'fps': int_or_none(video_info.get('framerate'))})
+                if 'bitrate' in video_info:
+                    track_obj.update({'vbr': int_or_none(video_info.get('bitrate'), 1000)})
+                video_encoder = video_info.get('encoder', {})
+                if 'type' in video_encoder:
+                    track_obj.update({'vcodec': video_encoder.get('type')})
+
+            formats.append(track_obj)
+
+        self._sort_formats(formats)
+
+        result_obj = {
+            'id': video_id,
+            'title': title,
+            'creator': creator,
+            'series': series,
+            'season_id': season_id,
+            'formats': formats,
+            'timestamp': timestamp,
+        }
+
+        attachments = video.get('attachments', {}).get('attachment', [])
+        if len(attachments) > 0:
+            thumbnail = attachments[0].get('url')
+            result_obj.update({'thumbnail': thumbnail})
+
+        return result_obj